Fix PATH to stylesheets

Fix PATH to stylesheets

<!DOCTYPE html>

    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible">
    <title><%= module.id %> - <%= config.project %> v<%= config.version %></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="generator" content="ExDoc">
    <link type="text/css" rel="stylesheet" href="../stylesheet.css">

<%= module.id %><%= if module.type do %> (<%= module.type %>)<% end%>

  <%= if module.moduledoc do %>

      <%= to_html(module.moduledoc) %>

  <% end %>

    <%= unless Enum.empty?(functions) and Enum.empty?(macros) do %>

Summary

    <% end %>
    <%= unless Enum.empty?(types) do %>

Types

    <% end %>
    <%= unless Enum.empty?(functions) do %>

Functions

    <% end %>
    <%= unless Enum.empty?(macros) do %>

Macros

    <% end %>
    <%= unless Enum.empty?(callbacks) do %>

Callbacks

    <% end %>

  <%= if module.source do %>
    <a href="<%= module.source %>" class="view-source">Source
  <% end %>

  <%= unless Enum.empty?(functions) and Enum.empty?(macros) do %>

Summary

        <%= for node <- Enum.sort(functions ++ macros, &(&1.id <= &2.id)), do: summary_template(node) %>

  <% end %>

  <%= unless Enum.empty?(types) do %>

Types

      <%= for node <- types, do: type_detail_template(node) %>

  <% end %>

  <%= unless Enum.empty?(functions) do %>

Functions

      <%= for node <- functions, do: detail_template(node, module) %>

  <% end %>

  <%= unless Enum.empty?(macros) do %>

Macros

      <%= for node <- macros, do: detail_template(node, module) %>

  <% end %>

  <%= unless Enum.empty?(callbacks) do %>

Callbacks

      <%= for node <- callbacks, do: detail_template(node, module) %>

  <% end %>

<!DOCTYPE html>

    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible">
    <title><%= module.id %> - <%= config.project %> v<%= config.version %></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="generator" content="ExDoc">
    <link type="text/css" rel="stylesheet" href="stylesheet.css">

<%= module.id %><%= if module.type do %> (<%= module.type %>)<% end%>

  <%= if module.moduledoc do %>

      <%= to_html(module.moduledoc) %>

  <% end %>

    <%= unless Enum.empty?(functions) and Enum.empty?(macros) do %>

Summary

    <% end %>
    <%= unless Enum.empty?(types) do %>

Types

    <% end %>
    <%= unless Enum.empty?(functions) do %>

Functions

    <% end %>
    <%= unless Enum.empty?(macros) do %>

Macros

    <% end %>
    <%= unless Enum.empty?(callbacks) do %>

Callbacks

    <% end %>

  <%= if module.source do %>
    <a href="<%= module.source %>" class="view-source">Source
  <% end %>

  <%= unless Enum.empty?(functions) and Enum.empty?(macros) do %>

Summary

        <%= for node <- Enum.sort(functions ++ macros, &(&1.id <= &2.id)), do: summary_template(node) %>

  <% end %>

  <%= unless Enum.empty?(types) do %>

Types

      <%= for node <- types, do: type_detail_template(node) %>

  <% end %>

  <%= unless Enum.empty?(functions) do %>

Functions

      <%= for node <- functions, do: detail_template(node, module) %>

  <% end %>

  <%= unless Enum.empty?(macros) do %>

Macros

      <%= for node <- macros, do: detail_template(node, module) %>

  <% end %>

  <%= unless Enum.empty?(callbacks) do %>

Callbacks

      <%= for node <- callbacks, do: detail_template(node, module) %>

  <% end %>


Color

Color

<!DOCTYPE html>

    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">

    <title>Hello Teal!</title>
    <link rel="stylesheet" href="<%= static_path(@conn, "/css/app.css") %>">

        Teal

        About
        New

        <%= if get_flash(@conn, :info) do %>

<%= get_flash(@conn, :info) %>

        <% end %>
        <%= if get_flash(@conn, :error) do %>

<%= get_flash(@conn, :error) %>

        <% end %>

        <%= render @view_module, @view_template, assigns %>


ramons url

ramons url

Panoptikum.io

META

Code of Conduct

Privacy

Complaints

Community

Imprint

ABOUT

About

Blog

Talks

FAQ

DEMO

 Tour

Random

Podcasters + Personas

New podcasts

New episodes

Podcast Buttons

SUPPORTED BY

Stefan a.k.a. Informatom

Community Manager Sonja

Bot Master Ramon

Mittenin.at

Vienna Beamers

      Hosted by Informatom EDV-Dienstleistungen e.U.


More url fixes

More url fixes

<form method="GET" action="<%= podcast_url(@conn, @podcast) %>">

    <input class="input-group-field" type="search" name="q" placeholder="Search this podcast" value="<%= @search_term%>">

  <a class="button large secondary expanded" href="<%= podcast_url(@conn, @podcast) %>">
     See all episodes in <%= truncate(@podcast.title, 30) %>

</form>

  <%= if @page.total_entries == 0 do %>
    Sorry, no episodes found for "<%= @search_term %>"
  <% else %>
    <%= @page.total_entries %> result(s) for "<%= @search_term %>"
  <% end %>

<%= render Podcatcher.Web.PaginationView, "pagination.html", conn: @conn, page: @page %>

<%= for episode <- @page.entries do %>
<%= render "episode_card.html", conn: @conn, episode: episode %>
<% end %>

<%= render Podcatcher.Web.PaginationView, "pagination.html", conn: @conn, page: @page %>

<form method="GET" action="<%= podcasts_path(@conn, :podcast, @podcast) %>">

    <input class="input-group-field" type="search" name="q" placeholder="Search this podcast" value="<%= @search_term%>">

  <a class="button large secondary expanded" href="<%= podcasts_path(@conn, :podcast, @podcast) %>">
     See all episodes in <%= truncate(@podcast.title, 30) %>

</form>

  <%= if @page.total_entries == 0 do %>
    Sorry, no episodes found for "<%= @search_term %>"
  <% else %>
    <%= @page.total_entries %> result(s) for "<%= @search_term %>"
  <% end %>

<%= render Podcatcher.Web.PaginationView, "pagination.html", conn: @conn, page: @page %>

<%= for episode <- @page.entries do %>
<%= render "episode_card.html", conn: @conn, episode: episode %>
<% end %>

<%= render Podcatcher.Web.PaginationView, "pagination.html", conn: @conn, page: @page %>


Change signal names from SIG<NAME> to <NAME>. Closes #19

#!/bin/sh

set -e

# Path to this script
SCRIPT=$(readlink $0 || true)
if [ -z $SCRIPT ]; then
    SCRIPT=$0
fi;
# Parent directory of this script
SCRIPT_DIR="$(cd `dirname "$SCRIPT"` && pwd -P)"
# Root directory of all releases
RELEASE_ROOT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd -P)"
# Name of the release
REL_NAME="<%= release_name %>"
# Current version of the release
REL_VSN="<%= release_version %>"
# Current version of ERTS being used
ERTS_VSN="<%= erts_vsn %>"
# VM code loading mode, embedded by default, can also be interactive
# See http://erlang.org/doc/man/code.html
CODE_LOADING_MODE="${CODE_LOADING_MODE:-embedded}"
# Directory containing the current version of this release
REL_DIR="$RELEASE_ROOT_DIR/releases/$REL_VSN"
# The lib directory for this release
REL_LIB_DIR="$RELEASE_ROOT_DIR/lib"
# Options passed to erl
ERL_OPTS="<%= release.profile.erl_opts %>"
# When stdout is piped to a file, this is the directory those files will
# be stored in. defaults to /log in the release root directory
RUNNER_LOG_DIR="${RUNNER_LOG_DIR:-$RELEASE_ROOT_DIR/log}"
# A string of extra options to pass to erl, here for plugins
EXTRA_OPTS=""

# Pre-start/stop event hook paths
PRE_START_HOOK="$REL_DIR/hooks/pre_start"
POST_START_HOOK="$REL_DIR/hooks/post_start"
PRE_STOP_HOOK="$REL_DIR/hooks/pre_stop"
POST_STOP_HOOK="$REL_DIR/hooks/post_stop"

# Get node pid
get_pid() {
    if output="$(nodetool rpcterms os getpid)"
    then
        echo "$output" | sed -e 's/"//g'
        return 0
    else
        echo "$output"
        return 1
    fi
}

# Generate a unique nodename
gen_nodename() {
    id="longname$(gen_id)-${NAME}"
    "$BINDIR/erl" -boot start_clean -eval '[Host] = tl(string:tokens(atom_to_list(node()),"@")), io:format("~s~n", [Host]), halt()' -noshell ${NAME_TYPE} $id
}

# Generate a random id
gen_id() {
    od -t x -N 4 /dev/urandom | head -n1 | awk '{print $2}'
}

# Control a node
# Use like `nodetool "ping"`
nodetool() {
    command="$1"; shift

    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/nodetool" "$NAME_TYPE" "$NAME" \
                            -setcookie "$COOKIE" "$command" $@
}

# Run an escript in the node's environment
# Use like `escript "path/to/escript"`
escript() {
    shift; scriptpath="$1"; shift
    export RELEASE_ROOT_DIR

    "$ERTS_DIR/bin/escript" "$ROOTDIR/$scriptpath" $@
}

# Private. For setting ERTS_DIR and ROOTDIR
_find_erts_dir() {
    __erts_dir="$RELEASE_ROOT_DIR/erts-$ERTS_VSN"
    if [ -d "$__erts_dir" ]; then
        ERTS_DIR="$__erts_dir";
        ROOTDIR="$RELEASE_ROOT_DIR"
    else
        __erl="$(which erl)"
        code="io:format(\"~s\", [code:root_dir()]), halt()."
        __erl_root="$("$__erl" -noshell -eval "$code")"
        ERTS_DIR="$__erl_root/erts-$ERTS_VSN"
        ROOTDIR="$__erl_root"
    fi
}

# Private. Open a shell on a remote node
_rem_sh() {
    # Generate a unique id used to allow multiple remsh to the same node
    # transparently
    id="remsh$(gen_id)-${NAME}"

    # Get the node's ticktime so that we use the same thing.
    TICKTIME="$(nodetool rpcterms net_kernel get_net_ticktime)"

    # Setup remote shell command to control node
    if [ ! -z "$USE_ERL_SHELL" ]; then
        exec "$BINDIR/erl" \
            -hidden \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            "$NAME_TYPE" "$id" -remsh "$NAME" -setcookie "$COOKIE"
    else
        exec "$BINDIR/erl" \
            -pa "$ROOTDIR"/lib/*/ebin -pa "$CONSOLIDATED_DIR" \
            -hidden -noshell \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            -user Elixir.IEx.CLI "$NAME_TYPE" "$id" -setcookie "$COOKIE" \
            -extra --no-halt +iex -"$NAME_TYPE" "$id" --cookie "$COOKIE" --remsh "$NAME"
    fi
}

# Output a start command for the last argument of run_erl
_start_command() {
    printf "exec \"%s\" \"%s\" -- %s %s" "$RELEASE_ROOT_DIR/bin/$REL_NAME" \
           "$START_OPTION" "${ARGS}" "${EXTRA_OPTS}"
}

# Allow override of where to look for config files
# By default it's $CWD/
if [ -z "$RELEASE_CONFIG_DIR" ]; then
    RELEASE_CONFIG_DIR="$RELEASE_ROOT_DIR"
fi

# Set VMARGS_PATH, the path to the vm.args file to use
# Use $RELEASE_CONFIG_DIR/vm.args if exists, otherwise releases/VSN/vm.args
if [ -z "$VMARGS_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/vm.args" ]; then
        VMARGS_PATH="$RELEASE_CONFIG_DIR/vm.args"
    else
        VMARGS_PATH="$REL_DIR/vm.args"
    fi
fi

orig_vmargs_path="$VMARGS_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's vm.args
    if [ ! -L "$orig_vmargs_path" ]; then
       #we're in copy mode, rename the vm.args file to vm.args.orig
       mv "$VMARGS_PATH" "$orig_vmargs_path"
    fi

    awk '{while(match($0,"[$]{[^}]*}")) {var=substr($0,RSTART+2,RLENGTH -3);gsub("[$]{"var"}",ENVIRON[var])}}1' < "$orig_vmargs_path" > "$VMARGS_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink vm.args.orig to vm.args, and keep it as a
    #symlink.
    if [ -L "$orig_vmargs_path" ]; then
       mv "$orig_vmargs_path" "$VMARGS_PATH"
    fi
fi

# Make sure log directory exists
mkdir -p "$RUNNER_LOG_DIR"

# Set SYS_CONFIG_PATH, the path to the sys.config file to use
# Use $RELEASE_CONFIG_DIR/sys.config if exists, otherwise releases/VSN/sys.config
if [ -z "$SYS_CONFIG_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/sys.config" ]; then
        SYS_CONFIG_PATH="$RELEASE_CONFIG_DIR/sys.config"
    else
        SYS_CONFIG_PATH="$REL_DIR/sys.config"
    fi
fi

orig_sys_config_path="$SYS_CONFIG_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's sys.config
    if [ ! -L "$orig_sys_config_path" ]; then
       #We're in copy mode, rename sys.config to sys.config.orig
       mv "$SYS_CONFIG_PATH" "$orig_sys_config_path"
    fi

    awk '{while(match($0,"[$]{[^}]*}")) {var=substr($0,RSTART+2,RLENGTH -3);gsub("[$]{"var"}",ENVIRON[var])}}1' < "$orig_sys_config_path" > "$SYS_CONFIG_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink sys.config.orig to sys.config. Keep it as
    #a symlink.
    if [ -L "$orig_sys_config_path" ]; then
       mv "$orig_sys_config_path"  "$SYS_CONFIG_PATH"
    fi
fi

# Extract the target node name from node.args
# Should be `-sname somename` or `-name somename@somehost`
NAME_ARG=$(egrep '^-s?name' "$VMARGS_PATH" || true)
if [ -z "$NAME_ARG" ]; then
    echo "vm.args needs to have either -name or -sname parameter."
    exit 1
fi

# Extract the name type and name from the NAME_ARG for REMSH
# NAME_TYPE should be -name or -sname
NAME_TYPE="$(echo "$NAME_ARG" | awk '{print $1}')"
# NAME will be either `somename` or `somename@somehost`
NAME="$(echo "$NAME_ARG" | awk '{print $2}')"

# Where the pipe will be stored when using `start`
# This is used so you can attach the running application to the current
# shell using `attach`
PIPE_DIR="${PIPE_DIR:-/tmp/erl_pipes/$NAME/}"

# Extract the target cookie
COOKIE_ARG="$(grep '^-setcookie' "$VMARGS_PATH" || true)"
DEFAULT_COOKIE_FILE="$HOME/.erlang.cookie"
if [ -z "$COOKIE_ARG" ]; then
    if [ -f "$DEFAULT_COOKIE_FILE" ]; then
        COOKIE="$(cat "$DEFAULT_COOKIE_FILE")"
    else
        printf "a secret cookie must be provided in one of the following ways:\n  - with vm.args using the -setcookie parameter,\n  or\n  by writing the cookie to '$DEFAULT_COOKIE_FILE', with permissions set to 0400"
        exit 1
    fi
else
    # Extract cookie name from COOKIE_ARG
    COOKIE="$(echo "$COOKIE_ARG" | awk '{print $2}')"
fi

_find_erts_dir
export ROOTDIR="$RELEASE_ROOT_DIR"
export BINDIR="$ERTS_DIR/bin"
export EMU="beam"
export PROGNAME="erl"
export LD_LIBRARY_PATH="$ERTS_DIR/lib:$LD_LIBRARY_PATH"
ERTS_LIB_DIR="$ERTS_DIR/../lib"
CONSOLIDATED_DIR="$ROOTDIR/lib/${REL_NAME}-${REL_VSN}/consolidated"

cd "$ROOTDIR"

# User can specify an sname without @hostname
# This will fail when creating remote shell
# So here we check for @ and add @hostname if missing
case $NAME in
    *@*)
        # Nothing to do
        ;;
    *)
        NAME=$NAME@$(gen_nodename)
        ;;
esac

# Check the first argument for instructions
case "$1" in
    start|start_boot)

        # Make sure there is not already a node running
        #RES=`$NODETOOL ping`
        #if [ "$RES" = "pong" ]; then
        #    echo "Node is already running!"
        #    exit 1
        #fi
        # Save this for later.
        CMD=$1
        case "$1" in
            start)
                shift
                START_OPTION="console"
                HEART_OPTION="start"
                ;;
            start_boot)
                shift
                START_OPTION="console_boot"
                HEART_OPTION="start_boot"
                ;;
        esac
        ARGS="$@"
        RUN_PARAM="$@"

        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Set arguments for the heart command
        set -- "$SCRIPT_DIR/$REL_NAME" "$HEART_OPTION"
        [ "$RUN_PARAM" ] && set -- "$@" "$RUN_PARAM"

        # Export the HEART_COMMAND
        HEART_COMMAND="$RELEASE_ROOT_DIR/bin/$REL_NAME $CMD"
        export HEART_COMMAND

        mkdir -p "$PIPE_DIR"

        "$BINDIR/run_erl" -daemon "$PIPE_DIR" "$RUNNER_LOG_DIR" \
                          "$(_start_command)"

        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        ;;

    stop)
        [ -f "$PRE_STOP_HOOK" ] && . "$PRE_STOP_HOOK"
        # Wait for the node to completely stop...
        PID="$(get_pid)"
        if ! nodetool "stop"; then
            exit 1
        fi
        while $(kill -s 0 "$PID" 2>/dev/null);
        do
            sleep 1
        done
        [ -f "$POST_STOP_HOOK" ] && . "$POST_STOP_HOOK"
        ;;

    restart)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM without exiting the process
        if ! nodetool "restart"; then
            exit 1
        fi
        ;;

    reboot)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM completely (uses heart to restart it)
        if ! nodetool "reboot"; then
            exit 1
        fi
        ;;

    pid)
        ## Get the VM's pid
        if ! get_pid; then
            exit 1
        fi
        ;;

    ping)
        ## See if the VM is alive
        if ! nodetool "ping"; then
            exit 1
        fi
        ;;

    escript)
        ## Run an escript under the node's environment
        if ! escript $@; then
            exit 1
        fi
        ;;

    attach)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        exec "$BINDIR/to_erl" "$PIPE_DIR"
        ;;

    remote_console)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        _rem_sh
        ;;

    upgrade|downgrade|install)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "install" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    unpack)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "unpack" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    console|console_clean|console_boot)
        # .boot file typically just $REL_NAME (ie, the app name)
        # however, for debugging, sometimes start_clean.boot is useful.
        # For e.g. 'setup', one may even want to name another boot script.
        case "$1" in
            console)
                if [ -f "$REL_DIR/$REL_NAME.boot" ]; then
                  BOOTFILE="$REL_DIR/$REL_NAME"
                else
                  BOOTFILE="$REL_DIR/start"
                fi
                ;;
            console_clean)
                BOOTFILE="$ROOTDIR/bin/start_clean"
                ;;
            console_boot)
                shift
                BOOTFILE="$1"
                shift
                ;;
        esac
        # Setup beam-required vars
        EMU="beam"
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre_start hook along
        # the way. We can't run the post_start hook because
        # the console will crash with no TTY attached
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" \
            -boot "$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -user Elixir.IEx.CLI \
            -extra --no-halt +iex

        # Dump environment info for logging purposes
        echo "Exec: $@" -- ${1+$ARGS} ${EXTRA_OPTS}
        echo "Root: $ROOTDIR"

        # Log the startup
        echo "$RELEASE_ROOT_DIR"
        logger -t "$REL_NAME[$$]" "Starting up"

        exec "$@" -- ${1+$ARGS} ${EXTRA_OPTS}
        ;;

    foreground)
        # start up the release in the foreground for use by runit
        # or other supervision services

        [ -f "$REL_DIR/$REL_NAME.boot" ] && BOOTFILE="$REL_NAME" || BOOTFILE=start
        FOREGROUNDOPTIONS="-noshell -noinput +Bd"

        # Setup beam-required vars
        EMU=beam
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre and post start hooks
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" $FOREGROUNDOPTIONS \
            -boot "$REL_DIR/$BOOTFILE" -mode "$CODE_LOADING_MODE" -config "$SYS_CONFIG_PATH" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -args_file "$VMARGS_PATH" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            ${ERL_OPTS} \
            -extra ${EXTRA_OPTS}

        # Dump environment info for logging purposes
        echo "Exec: $@" -- ${1+$ARGS}
        echo "Root: $ROOTDIR"

        trap '{}' QUIT TERM KILL HUP USR1 USR2
        "$@" -- ${1+$ARGS} &
        __bg_pid=$!
        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        wait $__bg_pid
        ;;
    rpc)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpc $@
        ;;
    rpcterms)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpcterms $@
        ;;
    eval)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        nodetool "eval" $@
        ;;
    *)
        __command_path="$REL_DIR/commands/$1"
        if [ -f "$__command_path" ]; then
            . "$__command_path"
        else
            echo "Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|pid|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade|downgrade|install|escript|rpc|rpcterms|eval}"
            exit 1
        fi
        ;;
esac

exit 0

#!/bin/sh

set -e

# Path to this script
SCRIPT=$(readlink $0 || true)
if [ -z $SCRIPT ]; then
    SCRIPT=$0
fi;
# Parent directory of this script
SCRIPT_DIR="$(cd `dirname "$SCRIPT"` && pwd -P)"
# Root directory of all releases
RELEASE_ROOT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd -P)"
# Name of the release
REL_NAME="<%= release_name %>"
# Current version of the release
REL_VSN="<%= release_version %>"
# Current version of ERTS being used
ERTS_VSN="<%= erts_vsn %>"
# VM code loading mode, embedded by default, can also be interactive
# See http://erlang.org/doc/man/code.html
CODE_LOADING_MODE="${CODE_LOADING_MODE:-embedded}"
# Directory containing the current version of this release
REL_DIR="$RELEASE_ROOT_DIR/releases/$REL_VSN"
# The lib directory for this release
REL_LIB_DIR="$RELEASE_ROOT_DIR/lib"
# Options passed to erl
ERL_OPTS="<%= release.profile.erl_opts %>"
# When stdout is piped to a file, this is the directory those files will
# be stored in. defaults to /log in the release root directory
RUNNER_LOG_DIR="${RUNNER_LOG_DIR:-$RELEASE_ROOT_DIR/log}"
# A string of extra options to pass to erl, here for plugins
EXTRA_OPTS=""

# Pre-start/stop event hook paths
PRE_START_HOOK="$REL_DIR/hooks/pre_start"
POST_START_HOOK="$REL_DIR/hooks/post_start"
PRE_STOP_HOOK="$REL_DIR/hooks/pre_stop"
POST_STOP_HOOK="$REL_DIR/hooks/post_stop"

# Get node pid
get_pid() {
    if output="$(nodetool rpcterms os getpid)"
    then
        echo "$output" | sed -e 's/"//g'
        return 0
    else
        echo "$output"
        return 1
    fi
}

# Generate a unique nodename
gen_nodename() {
    id="longname$(gen_id)-${NAME}"
    "$BINDIR/erl" -boot start_clean -eval '[Host] = tl(string:tokens(atom_to_list(node()),"@")), io:format("~s~n", [Host]), halt()' -noshell ${NAME_TYPE} $id
}

# Generate a random id
gen_id() {
    od -t x -N 4 /dev/urandom | head -n1 | awk '{print $2}'
}

# Control a node
# Use like `nodetool "ping"`
nodetool() {
    command="$1"; shift

    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/nodetool" "$NAME_TYPE" "$NAME" \
                            -setcookie "$COOKIE" "$command" $@
}

# Run an escript in the node's environment
# Use like `escript "path/to/escript"`
escript() {
    shift; scriptpath="$1"; shift
    export RELEASE_ROOT_DIR

    "$ERTS_DIR/bin/escript" "$ROOTDIR/$scriptpath" $@
}

# Private. For setting ERTS_DIR and ROOTDIR
_find_erts_dir() {
    __erts_dir="$RELEASE_ROOT_DIR/erts-$ERTS_VSN"
    if [ -d "$__erts_dir" ]; then
        ERTS_DIR="$__erts_dir";
        ROOTDIR="$RELEASE_ROOT_DIR"
    else
        __erl="$(which erl)"
        code="io:format(\"~s\", [code:root_dir()]), halt()."
        __erl_root="$("$__erl" -noshell -eval "$code")"
        ERTS_DIR="$__erl_root/erts-$ERTS_VSN"
        ROOTDIR="$__erl_root"
    fi
}

# Private. Open a shell on a remote node
_rem_sh() {
    # Generate a unique id used to allow multiple remsh to the same node
    # transparently
    id="remsh$(gen_id)-${NAME}"

    # Get the node's ticktime so that we use the same thing.
    TICKTIME="$(nodetool rpcterms net_kernel get_net_ticktime)"

    # Setup remote shell command to control node
    if [ ! -z "$USE_ERL_SHELL" ]; then
        exec "$BINDIR/erl" \
            -hidden \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            "$NAME_TYPE" "$id" -remsh "$NAME" -setcookie "$COOKIE"
    else
        exec "$BINDIR/erl" \
            -pa "$ROOTDIR"/lib/*/ebin -pa "$CONSOLIDATED_DIR" \
            -hidden -noshell \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            -user Elixir.IEx.CLI "$NAME_TYPE" "$id" -setcookie "$COOKIE" \
            -extra --no-halt +iex -"$NAME_TYPE" "$id" --cookie "$COOKIE" --remsh "$NAME"
    fi
}

# Output a start command for the last argument of run_erl
_start_command() {
    printf "exec \"%s\" \"%s\" -- %s %s" "$RELEASE_ROOT_DIR/bin/$REL_NAME" \
           "$START_OPTION" "${ARGS}" "${EXTRA_OPTS}"
}

# Allow override of where to look for config files
# By default it's $CWD/
if [ -z "$RELEASE_CONFIG_DIR" ]; then
    RELEASE_CONFIG_DIR="$RELEASE_ROOT_DIR"
fi

# Set VMARGS_PATH, the path to the vm.args file to use
# Use $RELEASE_CONFIG_DIR/vm.args if exists, otherwise releases/VSN/vm.args
if [ -z "$VMARGS_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/vm.args" ]; then
        VMARGS_PATH="$RELEASE_CONFIG_DIR/vm.args"
    else
        VMARGS_PATH="$REL_DIR/vm.args"
    fi
fi

orig_vmargs_path="$VMARGS_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's vm.args
    if [ ! -L "$orig_vmargs_path" ]; then
       #we're in copy mode, rename the vm.args file to vm.args.orig
       mv "$VMARGS_PATH" "$orig_vmargs_path"
    fi

    awk '{while(match($0,"[$]{[^}]*}")) {var=substr($0,RSTART+2,RLENGTH -3);gsub("[$]{"var"}",ENVIRON[var])}}1' < "$orig_vmargs_path" > "$VMARGS_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink vm.args.orig to vm.args, and keep it as a
    #symlink.
    if [ -L "$orig_vmargs_path" ]; then
       mv "$orig_vmargs_path" "$VMARGS_PATH"
    fi
fi

# Make sure log directory exists
mkdir -p "$RUNNER_LOG_DIR"

# Set SYS_CONFIG_PATH, the path to the sys.config file to use
# Use $RELEASE_CONFIG_DIR/sys.config if exists, otherwise releases/VSN/sys.config
if [ -z "$SYS_CONFIG_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/sys.config" ]; then
        SYS_CONFIG_PATH="$RELEASE_CONFIG_DIR/sys.config"
    else
        SYS_CONFIG_PATH="$REL_DIR/sys.config"
    fi
fi

orig_sys_config_path="$SYS_CONFIG_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's sys.config
    if [ ! -L "$orig_sys_config_path" ]; then
       #We're in copy mode, rename sys.config to sys.config.orig
       mv "$SYS_CONFIG_PATH" "$orig_sys_config_path"
    fi

    awk '{while(match($0,"[$]{[^}]*}")) {var=substr($0,RSTART+2,RLENGTH -3);gsub("[$]{"var"}",ENVIRON[var])}}1' < "$orig_sys_config_path" > "$SYS_CONFIG_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink sys.config.orig to sys.config. Keep it as
    #a symlink.
    if [ -L "$orig_sys_config_path" ]; then
       mv "$orig_sys_config_path"  "$SYS_CONFIG_PATH"
    fi
fi

# Extract the target node name from node.args
# Should be `-sname somename` or `-name somename@somehost`
NAME_ARG=$(egrep '^-s?name' "$VMARGS_PATH" || true)
if [ -z "$NAME_ARG" ]; then
    echo "vm.args needs to have either -name or -sname parameter."
    exit 1
fi

# Extract the name type and name from the NAME_ARG for REMSH
# NAME_TYPE should be -name or -sname
NAME_TYPE="$(echo "$NAME_ARG" | awk '{print $1}')"
# NAME will be either `somename` or `somename@somehost`
NAME="$(echo "$NAME_ARG" | awk '{print $2}')"

# Where the pipe will be stored when using `start`
# This is used so you can attach the running application to the current
# shell using `attach`
PIPE_DIR="${PIPE_DIR:-/tmp/erl_pipes/$NAME/}"

# Extract the target cookie
COOKIE_ARG="$(grep '^-setcookie' "$VMARGS_PATH" || true)"
DEFAULT_COOKIE_FILE="$HOME/.erlang.cookie"
if [ -z "$COOKIE_ARG" ]; then
    if [ -f "$DEFAULT_COOKIE_FILE" ]; then
        COOKIE="$(cat "$DEFAULT_COOKIE_FILE")"
    else
        printf "a secret cookie must be provided in one of the following ways:\n  - with vm.args using the -setcookie parameter,\n  or\n  by writing the cookie to '$DEFAULT_COOKIE_FILE', with permissions set to 0400"
        exit 1
    fi
else
    # Extract cookie name from COOKIE_ARG
    COOKIE="$(echo "$COOKIE_ARG" | awk '{print $2}')"
fi

_find_erts_dir
export ROOTDIR="$RELEASE_ROOT_DIR"
export BINDIR="$ERTS_DIR/bin"
export EMU="beam"
export PROGNAME="erl"
export LD_LIBRARY_PATH="$ERTS_DIR/lib:$LD_LIBRARY_PATH"
ERTS_LIB_DIR="$ERTS_DIR/../lib"
CONSOLIDATED_DIR="$ROOTDIR/lib/${REL_NAME}-${REL_VSN}/consolidated"

cd "$ROOTDIR"

# User can specify an sname without @hostname
# This will fail when creating remote shell
# So here we check for @ and add @hostname if missing
case $NAME in
    *@*)
        # Nothing to do
        ;;
    *)
        NAME=$NAME@$(gen_nodename)
        ;;
esac

# Check the first argument for instructions
case "$1" in
    start|start_boot)

        # Make sure there is not already a node running
        #RES=`$NODETOOL ping`
        #if [ "$RES" = "pong" ]; then
        #    echo "Node is already running!"
        #    exit 1
        #fi
        # Save this for later.
        CMD=$1
        case "$1" in
            start)
                shift
                START_OPTION="console"
                HEART_OPTION="start"
                ;;
            start_boot)
                shift
                START_OPTION="console_boot"
                HEART_OPTION="start_boot"
                ;;
        esac
        ARGS="$@"
        RUN_PARAM="$@"

        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Set arguments for the heart command
        set -- "$SCRIPT_DIR/$REL_NAME" "$HEART_OPTION"
        [ "$RUN_PARAM" ] && set -- "$@" "$RUN_PARAM"

        # Export the HEART_COMMAND
        HEART_COMMAND="$RELEASE_ROOT_DIR/bin/$REL_NAME $CMD"
        export HEART_COMMAND

        mkdir -p "$PIPE_DIR"

        "$BINDIR/run_erl" -daemon "$PIPE_DIR" "$RUNNER_LOG_DIR" \
                          "$(_start_command)"

        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        ;;

    stop)
        [ -f "$PRE_STOP_HOOK" ] && . "$PRE_STOP_HOOK"
        # Wait for the node to completely stop...
        PID="$(get_pid)"
        if ! nodetool "stop"; then
            exit 1
        fi
        while $(kill -s 0 "$PID" 2>/dev/null);
        do
            sleep 1
        done
        [ -f "$POST_STOP_HOOK" ] && . "$POST_STOP_HOOK"
        ;;

    restart)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM without exiting the process
        if ! nodetool "restart"; then
            exit 1
        fi
        ;;

    reboot)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM completely (uses heart to restart it)
        if ! nodetool "reboot"; then
            exit 1
        fi
        ;;

    pid)
        ## Get the VM's pid
        if ! get_pid; then
            exit 1
        fi
        ;;

    ping)
        ## See if the VM is alive
        if ! nodetool "ping"; then
            exit 1
        fi
        ;;

    escript)
        ## Run an escript under the node's environment
        if ! escript $@; then
            exit 1
        fi
        ;;

    attach)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        exec "$BINDIR/to_erl" "$PIPE_DIR"
        ;;

    remote_console)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        _rem_sh
        ;;

    upgrade|downgrade|install)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "install" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    unpack)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "unpack" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    console|console_clean|console_boot)
        # .boot file typically just $REL_NAME (ie, the app name)
        # however, for debugging, sometimes start_clean.boot is useful.
        # For e.g. 'setup', one may even want to name another boot script.
        case "$1" in
            console)
                if [ -f "$REL_DIR/$REL_NAME.boot" ]; then
                  BOOTFILE="$REL_DIR/$REL_NAME"
                else
                  BOOTFILE="$REL_DIR/start"
                fi
                ;;
            console_clean)
                BOOTFILE="$ROOTDIR/bin/start_clean"
                ;;
            console_boot)
                shift
                BOOTFILE="$1"
                shift
                ;;
        esac
        # Setup beam-required vars
        EMU="beam"
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre_start hook along
        # the way. We can't run the post_start hook because
        # the console will crash with no TTY attached
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" \
            -boot "$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -user Elixir.IEx.CLI \
            -extra --no-halt +iex

        # Dump environment info for logging purposes
        echo "Exec: $@" -- ${1+$ARGS} ${EXTRA_OPTS}
        echo "Root: $ROOTDIR"

        # Log the startup
        echo "$RELEASE_ROOT_DIR"
        logger -t "$REL_NAME[$$]" "Starting up"

        exec "$@" -- ${1+$ARGS} ${EXTRA_OPTS}
        ;;

    foreground)
        # start up the release in the foreground for use by runit
        # or other supervision services

        [ -f "$REL_DIR/$REL_NAME.boot" ] && BOOTFILE="$REL_NAME" || BOOTFILE=start
        FOREGROUNDOPTIONS="-noshell -noinput +Bd"

        # Setup beam-required vars
        EMU=beam
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre and post start hooks
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" $FOREGROUNDOPTIONS \
            -boot "$REL_DIR/$BOOTFILE" -mode "$CODE_LOADING_MODE" -config "$SYS_CONFIG_PATH" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -args_file "$VMARGS_PATH" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            ${ERL_OPTS} \
            -extra ${EXTRA_OPTS}

        # Dump environment info for logging purposes
        echo "Exec: $@" -- ${1+$ARGS}
        echo "Root: $ROOTDIR"

        trap '{}' QUIT TERM KILL HUP SIGUSR1 SIGUSR2
        "$@" -- ${1+$ARGS} &
        __bg_pid=$!
        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        wait $__bg_pid
        ;;
    rpc)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpc $@
        ;;
    rpcterms)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpcterms $@
        ;;
    eval)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        nodetool "eval" $@
        ;;
    *)
        __command_path="$REL_DIR/commands/$1"
        if [ -f "$__command_path" ]; then
            . "$__command_path"
        else
            echo "Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|pid|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade|downgrade|install|escript|rpc|rpcterms|eval}"
            exit 1
        fi
        ;;
esac

exit 0


Include the `disqus_identifier` variable

https://help.disqus.com/customer/portal/articles/472098-javascript-configuration-variables#disqus_identifier

<%= @post.title %>

  <%= "By #{author_name(@post.user)}" %>
  <%= human_date(@post.published_at) %>

  <%= for tag <- @post.tags do %>
    <%= tag %>
  <% end %>

    <%= markdown_to_html(@post.body) %>
    <a class='share' href="https://twitter.com/intent/tweet?url=<%= page_url(@conn, :show, @post.permalink) %>&text=<%= @post.title %>" target="_blank">
      <svg>
        <use xlink:href="<%= static_url(@conn, "/images/sprites.svg#twitter-small") %>" />
      </svg>
      Tweet

  <%= render_author(@conn, @post.user) %>

  Please enable JavaScript to view the comments powered by Disqus.


boot: Improve release directory resolution

Canonicalizes directory, resolving any symlink,
uses (g)readlink -f where available, or falls back
on hand-rolled function.

Tested under bash and dash v0.5.8. checkbashisms complains
about `command -v` but dash supports it.

#!/bin/sh

set -e

# Set VERBOSE to enable verbose logging of the boot script
#VERBOSE=true
if [ ! -z $DEBUG_BOOT ]; then
    set -x
fi;

my_readlink_f() {
    TARGET_FILE="$1"
    cd $(dirname "$TARGET_FILE")
    TARGET_FILE=$(basename "$TARGET_FILE")

    # Iterate down a (possible) chain of symlinks
    while [ -L "$TARGET_FILE" ]
    do
        TARGET_FILE=$(readlink "$TARGET_FILE")
        cd $(dirname "$TARGET_FILE")
        TARGET_FILE=$(basename "$TARGET_FILE")
    done
    # Compute the canonicalized name by finding the physical path
    # for the directory we're in and appending the target file.
    PHYS_DIR=$(pwd -P)
    RESULT="$PHYS_DIR/$TARGET_FILE"
    echo "$RESULT"
}

# Path to this script
if uname | grep -q 'Darwin'; then
  # on OSX, best to install coreutils from homebrew or similar
  # to get greadlink
  if command -v greadlink >/dev/null 2>&1; then
    SCRIPT=$(greadlink -f "$0")
  else
    SCRIPT=$(my_readlink_f "$0" )
  fi
else
  SCRIPT=$(readlink -f "$0" )
fi

# Parent directory of this script
SCRIPT_DIR=$(dirname "${SCRIPT}")
# Root directory of all releases
RELEASE_ROOT_DIR=$(dirname $(dirname ${SCRIPT_DIR}))

# Disable flow control for run_erl
# Flow control can cause several problems. On Linux, if you
# accidentally hit Ctrl-S (instead of Ctrl-D to detach) and
# then some other key, the entire beam process will hang when
# attempting to write to stdout. On Solaris, the beam process
# will hang on writing if ScrollLock is on.
RUN_ERL_DISABLE_FLOWCNTRL="${RUN_ERL_DISABLE_FLOWCNTRL:-true}"
# Name of the release
REL_NAME="<%= release_name %>"
# Current version of the release
REL_VSN="<%= release_version %>"
# Current version of ERTS being used
# If this is not present/unset, it will be detected
<%= unless is_nil(erts_vsn) do %>ERTS_VSN="<%= erts_vsn %>"<% end %>
# VM code loading mode, embedded by default, can also be interactive
# See http://erlang.org/doc/man/code.html
CODE_LOADING_MODE="${CODE_LOADING_MODE:-embedded}"
# Path to start_erl.data
START_ERL_DATA="$RELEASE_ROOT_DIR/releases/start_erl.data"
# Directory containing the current version of this release
REL_DIR="$RELEASE_ROOT_DIR/releases/$REL_VSN"
# The lib directory for this release
REL_LIB_DIR="$RELEASE_ROOT_DIR/lib"
# Options passed to erl
ERL_OPTS="<%= release.profile.erl_opts %>"
# When stdout is piped to a file, this is the directory those files will
# be stored in. defaults to /log in the release root directory
RUNNER_LOG_DIR="${RUNNER_LOG_DIR:-$RELEASE_ROOT_DIR/log}"
# A string of extra options to pass to erl, here for plugins
EXTRA_OPTS=""

# Pre-start/stop event hook paths
PRE_START_HOOK="$REL_DIR/hooks/pre_start"
POST_START_HOOK="$REL_DIR/hooks/post_start"
PRE_STOP_HOOK="$REL_DIR/hooks/pre_stop"
POST_STOP_HOOK="$REL_DIR/hooks/post_stop"

# Get node pid
get_pid() {
    if output="$(nodetool rpcterms os getpid)"
    then
        echo "$output" | sed -e 's/"//g'
        return 0
    else
        echo "$output"
        return 1
    fi
}

# Generate a unique nodename
gen_nodename() {
    id="longname$(gen_id)-${NAME}"
    "$BINDIR/erl" -boot start_clean -eval '[Host] = tl(string:tokens(atom_to_list(node()),"@")), io:format("~s~n", [Host]), halt()' -noshell ${NAME_TYPE} $id
}

# Generate a random id
gen_id() {
    od -t x -N 4 /dev/urandom | head -n1 | awk '{print $2}'
}

# Control a node
# Use like `nodetool "ping"`
nodetool() {
    command="$1"; shift

    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/nodetool" "$NAME_TYPE" "$NAME" \
                            -setcookie "$COOKIE" "$command" $@
}

# Run an escript in the node's environment
# Use like `escript "path/to/escript"`
escript() {
    shift; scriptpath="$1"; shift
    export RELEASE_ROOT_DIR

    "$ERTS_DIR/bin/escript" "$ROOTDIR/$scriptpath" $@
}

# Private. For determining the version of ERTS available to the release
_detect_erts_vsn() {
    "$BINDIR/erl" -boot start_clean -eval 'Ver = erlang:system_info(version), io:format("~s~n", [Ver]), halt()' -noshell
}

# Private. Gets a list of code paths for this release
_get_code_paths() {
    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/release_utils.escript" "get_code_paths" "$ROOTDIR" "$ERTS_DIR" "$REL_DIR" "$REL_NAME"
}

# Private. For setting ERTS_DIR and ROOTDIR
_find_erts_dir() {
    __erts_dir="$RELEASE_ROOT_DIR/erts-$ERTS_VSN"
    if [ -d "$__erts_dir" ]; then
        ERTS_DIR="$__erts_dir";
        ROOTDIR="$RELEASE_ROOT_DIR"
    else
        __erl="$(which erl)"
        code="io:format(\"~s\", [code:root_dir()]), halt()."
        __erl_root="$("$__erl" -noshell -eval "$code")"
        ERTS_DIR="$__erl_root/erts-$ERTS_VSN"
        ROOTDIR="$__erl_root"
    fi
}

# Private. Open a shell on a remote node
_rem_sh() {
    # Generate a unique id used to allow multiple remsh to the same node
    # transparently
    id="remsh$(gen_id)-${NAME}"

    # Get the node's ticktime so that we use the same thing.
    TICKTIME="$(nodetool rpcterms net_kernel get_net_ticktime)"

    # Setup remote shell command to control node
    if [ ! -z "$USE_ERL_SHELL" ]; then
        exec "$BINDIR/erl" \
            -hidden \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            "$NAME_TYPE" "$id" -remsh "$NAME" -setcookie "$COOKIE"
    else
        __code_paths=$(_get_code_paths)
        exec "$BINDIR/erl" \
            -pa "$CONSOLIDATED_DIR" \
            ${__code_paths} \
            -hidden -noshell \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            -user Elixir.IEx.CLI "$NAME_TYPE" "$id" -setcookie "$COOKIE" \
            -extra --no-halt +iex -"$NAME_TYPE" "$id" --cookie "$COOKIE" --remsh "$NAME"
    fi
}

# Output a start command for the last argument of run_erl
_start_command() {
    printf "exec \"%s\" \"%s\" -- %s %s" "$RELEASE_ROOT_DIR/bin/$REL_NAME" \
           "$START_OPTION" "${ARGS}" "${EXTRA_OPTS}"
}

# Do a textual replacement of ${VAR} occurances in $1 and pipe to $2
_replace_os_vars() {
    awk '
        function escape(s) {
            gsub(/'\&'/, "\\\\&", s);
            return s;
        }
        {
            while(match($0,"[$]{[^}]*}")) {
                var=substr($0,RSTART+2,RLENGTH-3);
                gsub("[$]{"var"}", escape(ENVIRON[var]))
            }
        }1' < "$1" > "$2"
}

# If ERTS_VSN is not set, detect it
if [ -z "$ERTS_VSN" ]; then
    ERTS_VSN="$(_detect_erts_vsn)"
    echo "$ERTS_VSN $REL_VSN" > "$START_ERL_DATA"
fi

# Allow override of where to look for config files
# By default it's $CWD/
if [ -z "$RELEASE_CONFIG_DIR" ]; then
    RELEASE_CONFIG_DIR="$RELEASE_ROOT_DIR"
fi

# Set VMARGS_PATH, the path to the vm.args file to use
# Use $RELEASE_CONFIG_DIR/vm.args if exists, otherwise releases/VSN/vm.args
if [ -z "$VMARGS_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/vm.args" ]; then
        VMARGS_PATH="$RELEASE_CONFIG_DIR/vm.args"
    else
        VMARGS_PATH="$REL_DIR/vm.args"
    fi
fi

orig_vmargs_path="$VMARGS_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's vm.args
    if [ ! -L "$orig_vmargs_path" ]; then
       #we're in copy mode, rename the vm.args file to vm.args.orig
       mv "$VMARGS_PATH" "$orig_vmargs_path"
    fi

    _replace_os_vars "$orig_vmargs_path" "$VMARGS_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink vm.args.orig to vm.args, and keep it as a
    #symlink.
    if [ -L "$orig_vmargs_path" ]; then
       mv "$orig_vmargs_path" "$VMARGS_PATH"
    fi
fi

# Make sure log directory exists
mkdir -p "$RUNNER_LOG_DIR"

# Set SYS_CONFIG_PATH, the path to the sys.config file to use
# Use $RELEASE_CONFIG_DIR/sys.config if exists, otherwise releases/VSN/sys.config
if [ -z "$SYS_CONFIG_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/sys.config" ]; then
        SYS_CONFIG_PATH="$RELEASE_CONFIG_DIR/sys.config"
    else
        SYS_CONFIG_PATH="$REL_DIR/sys.config"
    fi
fi

orig_sys_config_path="$SYS_CONFIG_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's sys.config
    if [ ! -L "$orig_sys_config_path" ]; then
       #We're in copy mode, rename sys.config to sys.config.orig
       mv "$SYS_CONFIG_PATH" "$orig_sys_config_path"
    fi

    _replace_os_vars "$orig_sys_config_path" "$SYS_CONFIG_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink sys.config.orig to sys.config. Keep it as
    #a symlink.
    if [ -L "$orig_sys_config_path" ]; then
       mv "$orig_sys_config_path"  "$SYS_CONFIG_PATH"
    fi
fi

# Extract the target node name from node.args
# Should be `-sname somename` or `-name somename@somehost`
NAME_ARG=$(egrep '^-s?name' "$VMARGS_PATH" || true)
if [ -z "$NAME_ARG" ]; then
    echo "vm.args needs to have either -name or -sname parameter."
    exit 1
fi

# Extract the name type and name from the NAME_ARG for REMSH
# NAME_TYPE should be -name or -sname
NAME_TYPE="$(echo "$NAME_ARG" | awk '{print $1}')"
# NAME will be either `somename` or `somename@somehost`
NAME="$(echo "$NAME_ARG" | awk '{print $2}')"

# Where the pipe will be stored when using `start`
# This is used so you can attach the running application to the current
# shell using `attach`
PIPE_DIR="${PIPE_DIR:-$RELEASE_ROOT_DIR/tmp/erl_pipes/$NAME/}"

# Extract the target cookie
COOKIE_ARG="$(grep '^-setcookie' "$VMARGS_PATH" || true)"
DEFAULT_COOKIE_FILE="$HOME/.erlang.cookie"
if [ -z "$COOKIE_ARG" ]; then
    if [ -f "$DEFAULT_COOKIE_FILE" ]; then
        COOKIE="$(cat "$DEFAULT_COOKIE_FILE")"
    else
        printf "a secret cookie must be provided in one of the following ways:\n  - with vm.args using the -setcookie parameter,\n  or\n  by writing the cookie to '$DEFAULT_COOKIE_FILE', with permissions set to 0400"
        exit 1
    fi
else
    # Extract cookie name from COOKIE_ARG
    COOKIE="$(echo "$COOKIE_ARG" | awk '{print $2}')"
fi

_find_erts_dir
export ROOTDIR="$RELEASE_ROOT_DIR"
export BINDIR="$ERTS_DIR/bin"
export EMU="beam"
export PROGNAME="erl"
export LD_LIBRARY_PATH="$ERTS_DIR/lib:$LD_LIBRARY_PATH"
ERTS_LIB_DIR="$ERTS_DIR/../lib"
CONSOLIDATED_DIR="$ROOTDIR/lib/${REL_NAME}-${REL_VSN}/consolidated"

cd "$ROOTDIR"

# User can specify an sname without @hostname
# This will fail when creating remote shell
# So here we check for @ and add @hostname if missing
case $NAME in
    *@*)
        # Nothing to do
        ;;
    *)
        NAME=$NAME@$(gen_nodename)
        ;;
esac

# Check the first argument for instructions
case "$1" in
    start|start_boot)

        # Make sure there is not already a node running
        #RES=`$NODETOOL ping`
        #if [ "$RES" = "pong" ]; then
        #    echo "Node is already running!"
        #    exit 1
        #fi
        # Save this for later.
        CMD=$1
        case "$1" in
            start)
                shift
                START_OPTION="console"
                HEART_OPTION="start"
                ;;
            start_boot)
                shift
                START_OPTION="console_boot"
                HEART_OPTION="start_boot"
                ;;
        esac
        ARGS="$@"
        RUN_PARAM="$@"

        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Set arguments for the heart command
        set -- "$SCRIPT_DIR/$REL_NAME" "$HEART_OPTION"
        [ "$RUN_PARAM" ] && set -- "$@" "$RUN_PARAM"

        # Export the HEART_COMMAND
        HEART_COMMAND="$RELEASE_ROOT_DIR/bin/$REL_NAME $CMD"
        export HEART_COMMAND

        mkdir -p "$PIPE_DIR"

        "$BINDIR/run_erl" -daemon "$PIPE_DIR" "$RUNNER_LOG_DIR" \
                          "$(_start_command)"

        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        ;;

    stop)
        [ -f "$PRE_STOP_HOOK" ] && . "$PRE_STOP_HOOK"
        # Wait for the node to completely stop...
        PID="$(get_pid)"
        if ! nodetool "stop"; then
            exit 1
        fi
        while $(kill -s 0 "$PID" 2>/dev/null);
        do
            sleep 1
        done
        [ -f "$POST_STOP_HOOK" ] && . "$POST_STOP_HOOK"
        ;;

    restart)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM without exiting the process
        if ! nodetool "restart"; then
            exit 1
        fi
        ;;

    reboot)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM completely (uses heart to restart it)
        if ! nodetool "reboot"; then
            exit 1
        fi
        ;;

    pid)
        ## Get the VM's pid
        if ! get_pid; then
            exit 1
        fi
        ;;

    ping)
        ## See if the VM is alive
        if ! nodetool "ping"; then
            exit 1
        fi
        ;;

    escript)
        ## Run an escript under the node's environment
        if ! escript $@; then
            exit 1
        fi
        ;;

    attach)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        exec "$BINDIR/to_erl" "$PIPE_DIR"
        ;;

    remote_console)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        _rem_sh
        ;;

    upgrade|downgrade|install)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "install" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    unpack)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "unpack" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    console|console_clean|console_boot)
        # .boot file typically just $REL_NAME (ie, the app name)
        # however, for debugging, sometimes start_clean.boot is useful.
        # For e.g. 'setup', one may even want to name another boot script.
        case "$1" in
            console)
                if [ -f "$REL_DIR/$REL_NAME.boot" ]; then
                  BOOTFILE="$REL_DIR/$REL_NAME"
                else
                  BOOTFILE="$REL_DIR/start"
                fi
                ;;
            console_clean)
                BOOTFILE="$ROOTDIR/bin/start_clean"
                ;;
            console_boot)
                shift
                BOOTFILE="$1"
                shift
                ;;
        esac
        # Setup beam-required vars
        EMU="beam"
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre_start hook along
        # the way. We can't run the post_start hook because
        # the console will crash with no TTY attached
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        __code_paths=$(_get_code_paths)
        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" \
            -boot "$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            ${__code_paths} \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -user Elixir.IEx.CLI \
            -extra --no-halt +iex

        # Dump environment info for logging purposes
        if [ ! -z $VERBOSE ]; then
            echo "Exec: $@" -- ${1+$ARGS} ${EXTRA_OPTS}
            echo "Root: $ROOTDIR"

            # Log the startup
            echo "$RELEASE_ROOT_DIR"
        fi;

        logger -t "$REL_NAME[$$]" "Starting up"

        exec "$@" -- ${1+$ARGS} ${EXTRA_OPTS}
        ;;

    foreground)
        # start up the release in the foreground for use by runit
        # or other supervision services

        [ -f "$REL_DIR/$REL_NAME.boot" ] && BOOTFILE="$REL_NAME" || BOOTFILE=start
        FOREGROUNDOPTIONS="-noshell -noinput +Bd"

        # Setup beam-required vars
        EMU=beam
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre and post start hooks
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" $FOREGROUNDOPTIONS \
            -boot "$REL_DIR/$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -extra ${EXTRA_OPTS}

        # Dump environment info for logging purposes
        if [ ! -z $VERBOSE ]; then
            echo "Exec: $@" -- ${1+$ARGS}
            echo "Root: $ROOTDIR"
        fi;

        "$@" -- ${1+$ARGS} &
        __bg_pid=$!
        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        wait $__bg_pid
        ;;
    rpc)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpc $@
        ;;
    rpcterms)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpcterms $@
        ;;
    eval)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        nodetool "eval" $@
        ;;
    command)
        # Execute as command-line utility
        #
        # Like the escript command, this does not start the OTP application.
        # If your command depends on a running OTP application,
        # use
        #
        #     {:ok, _} = Application.ensure_all_started(:your_app)

        shift
        MODULE="$1"; shift
        FUNCTION="$1"; shift

        # Save extra arguments
        ARGS="$@"

        # Build arguments for erlexec
        set -- "$ERL_OPTS"
        [ "$SYS_CONFIG_PATH" ] && set -- "$@" -config "$SYS_CONFIG_PATH"
        set -- "$@" -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR"
        set -- "$@" -noshell
        set -- "$@" -boot start_clean
        set -- "$@" -s "$MODULE" "$FUNCTION"

        $BINDIR/erlexec $@ -extra $ARGS
        exit "$?"
        ;;
    *)
        __command_path="$REL_DIR/commands/$1"
        if [ -f "$__command_path" ]; then
            . "$__command_path"
        else
            echo "Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|pid|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade|downgrade|install|escript|rpc|rpcterms|eval|command <module> <function> <args>}"
            exit 1
        fi
        ;;
esac

exit 0

#!/bin/sh

set -e

# Set VERBOSE to enable verbose logging of the boot script
#VERBOSE=true
if [ ! -z $DEBUG_BOOT ]; then
    set -x
fi;
# Disable flow control for run_erl
# Flow control can cause several problems. On Linux, if you
# accidentally hit Ctrl-S (instead of Ctrl-D to detach) and
# then some other key, the entire beam process will hang when
# attempting to write to stdout. On Solaris, the beam process
# will hang on writing if ScrollLock is on.
RUN_ERL_DISABLE_FLOWCNTRL="${RUN_ERL_DISABLE_FLOWCNTRL:-true}"
# Path to this script
SCRIPT=$(readlink $0 || true)
if [ -z $SCRIPT ]; then
    SCRIPT=$0
fi;
# Parent directory of this script
SCRIPT_DIR="$(cd `dirname "$SCRIPT"` && pwd -P)"
# Root directory of all releases
RELEASE_ROOT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd -P)"
# Name of the release
REL_NAME="<%= release_name %>"
# Current version of the release
REL_VSN="<%= release_version %>"
# Current version of ERTS being used
# If this is not present/unset, it will be detected
<%= unless is_nil(erts_vsn) do %>ERTS_VSN="<%= erts_vsn %>"<% end %>
# VM code loading mode, embedded by default, can also be interactive
# See http://erlang.org/doc/man/code.html
CODE_LOADING_MODE="${CODE_LOADING_MODE:-embedded}"
# Path to start_erl.data
START_ERL_DATA="$RELEASE_ROOT_DIR/releases/start_erl.data"
# Directory containing the current version of this release
REL_DIR="$RELEASE_ROOT_DIR/releases/$REL_VSN"
# The lib directory for this release
REL_LIB_DIR="$RELEASE_ROOT_DIR/lib"
# Options passed to erl
ERL_OPTS="<%= release.profile.erl_opts %>"
# When stdout is piped to a file, this is the directory those files will
# be stored in. defaults to /log in the release root directory
RUNNER_LOG_DIR="${RUNNER_LOG_DIR:-$RELEASE_ROOT_DIR/log}"
# A string of extra options to pass to erl, here for plugins
EXTRA_OPTS=""

# Pre-start/stop event hook paths
PRE_START_HOOK="$REL_DIR/hooks/pre_start"
POST_START_HOOK="$REL_DIR/hooks/post_start"
PRE_STOP_HOOK="$REL_DIR/hooks/pre_stop"
POST_STOP_HOOK="$REL_DIR/hooks/post_stop"

# Get node pid
get_pid() {
    if output="$(nodetool rpcterms os getpid)"
    then
        echo "$output" | sed -e 's/"//g'
        return 0
    else
        echo "$output"
        return 1
    fi
}

# Generate a unique nodename
gen_nodename() {
    id="longname$(gen_id)-${NAME}"
    "$BINDIR/erl" -boot start_clean -eval '[Host] = tl(string:tokens(atom_to_list(node()),"@")), io:format("~s~n", [Host]), halt()' -noshell ${NAME_TYPE} $id
}

# Generate a random id
gen_id() {
    od -t x -N 4 /dev/urandom | head -n1 | awk '{print $2}'
}

# Control a node
# Use like `nodetool "ping"`
nodetool() {
    command="$1"; shift

    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/nodetool" "$NAME_TYPE" "$NAME" \
                            -setcookie "$COOKIE" "$command" $@
}

# Run an escript in the node's environment
# Use like `escript "path/to/escript"`
escript() {
    shift; scriptpath="$1"; shift
    export RELEASE_ROOT_DIR

    "$ERTS_DIR/bin/escript" "$ROOTDIR/$scriptpath" $@
}

# Private. For determining the version of ERTS available to the release
_detect_erts_vsn() {
    "$BINDIR/erl" -boot start_clean -eval 'Ver = erlang:system_info(version), io:format("~s~n", [Ver]), halt()' -noshell
}

# Private. Gets a list of code paths for this release
_get_code_paths() {
    "$ERTS_DIR/bin/escript" "$ROOTDIR/bin/release_utils.escript" "get_code_paths" "$ROOTDIR" "$ERTS_DIR" "$REL_DIR" "$REL_NAME"
}

# Private. For setting ERTS_DIR and ROOTDIR
_find_erts_dir() {
    __erts_dir="$RELEASE_ROOT_DIR/erts-$ERTS_VSN"
    if [ -d "$__erts_dir" ]; then
        ERTS_DIR="$__erts_dir";
        ROOTDIR="$RELEASE_ROOT_DIR"
    else
        __erl="$(which erl)"
        code="io:format(\"~s\", [code:root_dir()]), halt()."
        __erl_root="$("$__erl" -noshell -eval "$code")"
        ERTS_DIR="$__erl_root/erts-$ERTS_VSN"
        ROOTDIR="$__erl_root"
    fi
}

# Private. Open a shell on a remote node
_rem_sh() {
    # Generate a unique id used to allow multiple remsh to the same node
    # transparently
    id="remsh$(gen_id)-${NAME}"

    # Get the node's ticktime so that we use the same thing.
    TICKTIME="$(nodetool rpcterms net_kernel get_net_ticktime)"

    # Setup remote shell command to control node
    if [ ! -z "$USE_ERL_SHELL" ]; then
        exec "$BINDIR/erl" \
            -hidden \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            "$NAME_TYPE" "$id" -remsh "$NAME" -setcookie "$COOKIE"
    else
        __code_paths=$(_get_code_paths)
        exec "$BINDIR/erl" \
            -pa "$CONSOLIDATED_DIR" \
            ${__code_paths} \
            -hidden -noshell \
            -boot start_clean -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -kernel net_ticktime $TICKTIME \
            -user Elixir.IEx.CLI "$NAME_TYPE" "$id" -setcookie "$COOKIE" \
            -extra --no-halt +iex -"$NAME_TYPE" "$id" --cookie "$COOKIE" --remsh "$NAME"
    fi
}

# Output a start command for the last argument of run_erl
_start_command() {
    printf "exec \"%s\" \"%s\" -- %s %s" "$RELEASE_ROOT_DIR/bin/$REL_NAME" \
           "$START_OPTION" "${ARGS}" "${EXTRA_OPTS}"
}

# Do a textual replacement of ${VAR} occurances in $1 and pipe to $2
_replace_os_vars() {
    awk '
        function escape(s) {
            gsub(/'\&'/, "\\\\&", s);
            return s;
        }
        {
            while(match($0,"[$]{[^}]*}")) {
                var=substr($0,RSTART+2,RLENGTH-3);
                gsub("[$]{"var"}", escape(ENVIRON[var]))
            }
        }1' < "$1" > "$2"
}

# If ERTS_VSN is not set, detect it
if [ -z "$ERTS_VSN" ]; then
    ERTS_VSN="$(_detect_erts_vsn)"
    echo "$ERTS_VSN $REL_VSN" > "$START_ERL_DATA"
fi

# Allow override of where to look for config files
# By default it's $CWD/
if [ -z "$RELEASE_CONFIG_DIR" ]; then
    RELEASE_CONFIG_DIR="$RELEASE_ROOT_DIR"
fi

# Set VMARGS_PATH, the path to the vm.args file to use
# Use $RELEASE_CONFIG_DIR/vm.args if exists, otherwise releases/VSN/vm.args
if [ -z "$VMARGS_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/vm.args" ]; then
        VMARGS_PATH="$RELEASE_CONFIG_DIR/vm.args"
    else
        VMARGS_PATH="$REL_DIR/vm.args"
    fi
fi

orig_vmargs_path="$VMARGS_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's vm.args
    if [ ! -L "$orig_vmargs_path" ]; then
       #we're in copy mode, rename the vm.args file to vm.args.orig
       mv "$VMARGS_PATH" "$orig_vmargs_path"
    fi

    _replace_os_vars "$orig_vmargs_path" "$VMARGS_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink vm.args.orig to vm.args, and keep it as a
    #symlink.
    if [ -L "$orig_vmargs_path" ]; then
       mv "$orig_vmargs_path" "$VMARGS_PATH"
    fi
fi

# Make sure log directory exists
mkdir -p "$RUNNER_LOG_DIR"

# Set SYS_CONFIG_PATH, the path to the sys.config file to use
# Use $RELEASE_CONFIG_DIR/sys.config if exists, otherwise releases/VSN/sys.config
if [ -z "$SYS_CONFIG_PATH" ]; then
    if [ -f "$RELEASE_CONFIG_DIR/sys.config" ]; then
        SYS_CONFIG_PATH="$RELEASE_CONFIG_DIR/sys.config"
    else
        SYS_CONFIG_PATH="$REL_DIR/sys.config"
    fi
fi

orig_sys_config_path="$SYS_CONFIG_PATH.orig"
if [ $REPLACE_OS_VARS ]; then
    #Make sure we don't break dev mode by keeping the symbolic link to
    #the user's sys.config
    if [ ! -L "$orig_sys_config_path" ]; then
       #We're in copy mode, rename sys.config to sys.config.orig
       mv "$SYS_CONFIG_PATH" "$orig_sys_config_path"
    fi

    _replace_os_vars "$orig_sys_config_path" "$SYS_CONFIG_PATH"
 else
    #We don't need to replace env. vars, just rename the
    #symlink sys.config.orig to sys.config. Keep it as
    #a symlink.
    if [ -L "$orig_sys_config_path" ]; then
       mv "$orig_sys_config_path"  "$SYS_CONFIG_PATH"
    fi
fi

# Extract the target node name from node.args
# Should be `-sname somename` or `-name somename@somehost`
NAME_ARG=$(egrep '^-s?name' "$VMARGS_PATH" || true)
if [ -z "$NAME_ARG" ]; then
    echo "vm.args needs to have either -name or -sname parameter."
    exit 1
fi

# Extract the name type and name from the NAME_ARG for REMSH
# NAME_TYPE should be -name or -sname
NAME_TYPE="$(echo "$NAME_ARG" | awk '{print $1}')"
# NAME will be either `somename` or `somename@somehost`
NAME="$(echo "$NAME_ARG" | awk '{print $2}')"

# Where the pipe will be stored when using `start`
# This is used so you can attach the running application to the current
# shell using `attach`
PIPE_DIR="${PIPE_DIR:-$RELEASE_ROOT_DIR/tmp/erl_pipes/$NAME/}"

# Extract the target cookie
COOKIE_ARG="$(grep '^-setcookie' "$VMARGS_PATH" || true)"
DEFAULT_COOKIE_FILE="$HOME/.erlang.cookie"
if [ -z "$COOKIE_ARG" ]; then
    if [ -f "$DEFAULT_COOKIE_FILE" ]; then
        COOKIE="$(cat "$DEFAULT_COOKIE_FILE")"
    else
        printf "a secret cookie must be provided in one of the following ways:\n  - with vm.args using the -setcookie parameter,\n  or\n  by writing the cookie to '$DEFAULT_COOKIE_FILE', with permissions set to 0400"
        exit 1
    fi
else
    # Extract cookie name from COOKIE_ARG
    COOKIE="$(echo "$COOKIE_ARG" | awk '{print $2}')"
fi

_find_erts_dir
export ROOTDIR="$RELEASE_ROOT_DIR"
export BINDIR="$ERTS_DIR/bin"
export EMU="beam"
export PROGNAME="erl"
export LD_LIBRARY_PATH="$ERTS_DIR/lib:$LD_LIBRARY_PATH"
ERTS_LIB_DIR="$ERTS_DIR/../lib"
CONSOLIDATED_DIR="$ROOTDIR/lib/${REL_NAME}-${REL_VSN}/consolidated"

cd "$ROOTDIR"

# User can specify an sname without @hostname
# This will fail when creating remote shell
# So here we check for @ and add @hostname if missing
case $NAME in
    *@*)
        # Nothing to do
        ;;
    *)
        NAME=$NAME@$(gen_nodename)
        ;;
esac

# Check the first argument for instructions
case "$1" in
    start|start_boot)

        # Make sure there is not already a node running
        #RES=`$NODETOOL ping`
        #if [ "$RES" = "pong" ]; then
        #    echo "Node is already running!"
        #    exit 1
        #fi
        # Save this for later.
        CMD=$1
        case "$1" in
            start)
                shift
                START_OPTION="console"
                HEART_OPTION="start"
                ;;
            start_boot)
                shift
                START_OPTION="console_boot"
                HEART_OPTION="start_boot"
                ;;
        esac
        ARGS="$@"
        RUN_PARAM="$@"

        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Set arguments for the heart command
        set -- "$SCRIPT_DIR/$REL_NAME" "$HEART_OPTION"
        [ "$RUN_PARAM" ] && set -- "$@" "$RUN_PARAM"

        # Export the HEART_COMMAND
        HEART_COMMAND="$RELEASE_ROOT_DIR/bin/$REL_NAME $CMD"
        export HEART_COMMAND

        mkdir -p "$PIPE_DIR"

        "$BINDIR/run_erl" -daemon "$PIPE_DIR" "$RUNNER_LOG_DIR" \
                          "$(_start_command)"

        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        ;;

    stop)
        [ -f "$PRE_STOP_HOOK" ] && . "$PRE_STOP_HOOK"
        # Wait for the node to completely stop...
        PID="$(get_pid)"
        if ! nodetool "stop"; then
            exit 1
        fi
        while $(kill -s 0 "$PID" 2>/dev/null);
        do
            sleep 1
        done
        [ -f "$POST_STOP_HOOK" ] && . "$POST_STOP_HOOK"
        ;;

    restart)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM without exiting the process
        if ! nodetool "restart"; then
            exit 1
        fi
        ;;

    reboot)
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"
        ## Restart the VM completely (uses heart to restart it)
        if ! nodetool "reboot"; then
            exit 1
        fi
        ;;

    pid)
        ## Get the VM's pid
        if ! get_pid; then
            exit 1
        fi
        ;;

    ping)
        ## See if the VM is alive
        if ! nodetool "ping"; then
            exit 1
        fi
        ;;

    escript)
        ## Run an escript under the node's environment
        if ! escript $@; then
            exit 1
        fi
        ;;

    attach)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        exec "$BINDIR/to_erl" "$PIPE_DIR"
        ;;

    remote_console)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        _rem_sh
        ;;

    upgrade|downgrade|install)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "install" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    unpack)
        if [ -z "$2" ]; then
            echo "Missing package argument"
            echo "Usage: $REL_NAME $1 {package base name}"
            echo "NOTE {package base name} MUST NOT include the .tar.gz suffix"
            exit 1
        fi

        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        exec "$BINDIR/escript" "$ROOTDIR/bin/install_upgrade.escript" \
             "unpack" "$REL_NAME" "$NAME_TYPE" "$NAME" "$COOKIE" "$2"
        ;;

    console|console_clean|console_boot)
        # .boot file typically just $REL_NAME (ie, the app name)
        # however, for debugging, sometimes start_clean.boot is useful.
        # For e.g. 'setup', one may even want to name another boot script.
        case "$1" in
            console)
                if [ -f "$REL_DIR/$REL_NAME.boot" ]; then
                  BOOTFILE="$REL_DIR/$REL_NAME"
                else
                  BOOTFILE="$REL_DIR/start"
                fi
                ;;
            console_clean)
                BOOTFILE="$ROOTDIR/bin/start_clean"
                ;;
            console_boot)
                shift
                BOOTFILE="$1"
                shift
                ;;
        esac
        # Setup beam-required vars
        EMU="beam"
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre_start hook along
        # the way. We can't run the post_start hook because
        # the console will crash with no TTY attached
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        __code_paths=$(_get_code_paths)
        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" \
            -boot "$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            ${__code_paths} \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -user Elixir.IEx.CLI \
            -extra --no-halt +iex

        # Dump environment info for logging purposes
        if [ ! -z $VERBOSE ]; then
            echo "Exec: $@" -- ${1+$ARGS} ${EXTRA_OPTS}
            echo "Root: $ROOTDIR"

            # Log the startup
            echo "$RELEASE_ROOT_DIR"
        fi;

        logger -t "$REL_NAME[$$]" "Starting up"

        exec "$@" -- ${1+$ARGS} ${EXTRA_OPTS}
        ;;

    foreground)
        # start up the release in the foreground for use by runit
        # or other supervision services

        [ -f "$REL_DIR/$REL_NAME.boot" ] && BOOTFILE="$REL_NAME" || BOOTFILE=start
        FOREGROUNDOPTIONS="-noshell -noinput +Bd"

        # Setup beam-required vars
        EMU=beam
        PROGNAME="${0#*/}"

        export EMU
        export PROGNAME

        # Store passed arguments since they will be erased by `set`
        ARGS="$@"

        # Start the VM, executing pre and post start hooks
        [ -f "$PRE_START_HOOK" ] && . "$PRE_START_HOOK"

        # Build an array of arguments to pass to exec later on
        # Build it here because this command will be used for logging.
        set -- "$BINDIR/erlexec" $FOREGROUNDOPTIONS \
            -boot "$REL_DIR/$BOOTFILE" \
            -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR" \
            -env ERL_LIBS "$REL_LIB_DIR" \
            -pa "$CONSOLIDATED_DIR" \
            -args_file "$VMARGS_PATH" \
            -config "$SYS_CONFIG_PATH" \
            -mode "$CODE_LOADING_MODE" \
            ${ERL_OPTS} \
            -extra ${EXTRA_OPTS}

        # Dump environment info for logging purposes
        if [ ! -z $VERBOSE ]; then
            echo "Exec: $@" -- ${1+$ARGS}
            echo "Root: $ROOTDIR"
        fi;

        "$@" -- ${1+$ARGS} &
        __bg_pid=$!
        [ -f "$POST_START_HOOK" ] && . "$POST_START_HOOK"
        wait $__bg_pid
        ;;
    rpc)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpc $@
        ;;
    rpcterms)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift

        nodetool rpcterms $@
        ;;
    eval)
        # Make sure a node IS running
        if ! nodetool "ping" > /dev/null; then
            echo "Node is not running!"
            exit 1
        fi

        shift
        nodetool "eval" $@
        ;;
    command)
        # Execute as command-line utility
        #
        # Like the escript command, this does not start the OTP application.
        # If your command depends on a running OTP application,
        # use
        #
        #     {:ok, _} = Application.ensure_all_started(:your_app)

        shift
        MODULE="$1"; shift
        FUNCTION="$1"; shift

        # Save extra arguments
        ARGS="$@"

        # Build arguments for erlexec
        set -- "$ERL_OPTS"
        [ "$SYS_CONFIG_PATH" ] && set -- "$@" -config "$SYS_CONFIG_PATH"
        set -- "$@" -boot_var ERTS_LIB_DIR "$ERTS_LIB_DIR"
        set -- "$@" -noshell
        set -- "$@" -boot start_clean
        set -- "$@" -s "$MODULE" "$FUNCTION"

        $BINDIR/erlexec $@ -extra $ARGS
        exit "$?"
        ;;
    *)
        __command_path="$REL_DIR/commands/$1"
        if [ -f "$__command_path" ]; then
            . "$__command_path"
        else
            echo "Usage: $REL_NAME {start|start_boot <file>|foreground|stop|restart|reboot|pid|ping|console|console_clean|console_boot <file>|attach|remote_console|upgrade|downgrade|install|escript|rpc|rpcterms|eval|command <module> <function> <args>}"
            exit 1
        fi
        ;;
esac

exit 0