prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Cannot deploy after removing cache
  Hello,
  
  the deploy command crashes like this:
  
  IOError: [Errno 2] No such file or directory: 'cache/lastdeploy'
  
  Why, yes, of course, I can remove "cache", can't I? Seems I have to "mkdir" it. Also I would like to disable its usage, as the point is unclear to my, using rsync does the trick to me.
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `nikola/plugins/command/deploy.py`
  Content:
  ```
  1 # -*- coding: utf-8 -*-
  2 
  3 # Copyright © 2012-2015 Roberto Alsina and others.
  4 
  5 # Permission is hereby granted, free of charge, to any
  6 # person obtaining a copy of this software and associated
  7 # documentation files (the "Software"), to deal in the
  8 # Software without restriction, including without limitation
  9 # the rights to use, copy, modify, merge, publish,
  10 # distribute, sublicense, and/or sell copies of the
  11 # Software, and to permit persons to whom the Software is
  12 # furnished to do so, subject to the following conditions:
  13 #
  14 # The above copyright notice and this permission notice
  15 # shall be included in all copies or substantial portions of
  16 # the Software.
  17 #
  18 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  19 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
  20 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  21 # PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
  22 # OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23 # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  24 # OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 
  27 from __future__ import print_function
  28 import io
  29 from datetime import datetime
  30 from dateutil.tz import gettz
  31 import os
  32 import sys
  33 import subprocess
  34 import time
  35 
  36 from blinker import signal
  37 
  38 from nikola.plugin_categories import Command
  39 from nikola.utils import get_logger, remove_file, unicode_str
  40 
  41 
  42 class CommandDeploy(Command):
  43     """Deploy site."""
  44     name = "deploy"
  45 
  46     doc_usage = "[[preset [preset...]]"
  47     doc_purpose = "deploy the site"
  48     doc_description = "Deploy the site by executing deploy commands from the presets listed on the command line.  If no presets are specified, `default` is executed."
  49     logger = None
  50 
  51     def _execute(self, command, args):
  52         self.logger = get_logger('deploy', self.site.loghandlers)
  53         # Get last successful deploy date
  54         timestamp_path = os.path.join(self.site.config['CACHE_FOLDER'], 'lastdeploy')
  55         if self.site.config['COMMENT_SYSTEM_ID'] == 'nikolademo':
  56             self.logger.warn("\nWARNING WARNING WARNING WARNING\n"
  57                              "You are deploying using the nikolademo Disqus account.\n"
  58                              "That means you will not be able to moderate the comments in your own site.\n"
  59                              "And is probably not what you want to do.\n"
  60                              "Think about it for 5 seconds, I'll wait :-)\n\n")
  61             time.sleep(5)
  62 
  63         deploy_drafts = self.site.config.get('DEPLOY_DRAFTS', True)
  64         deploy_future = self.site.config.get('DEPLOY_FUTURE', False)
  65         undeployed_posts = []
  66         if not (deploy_drafts and deploy_future):
  67             # Remove drafts and future posts
  68             out_dir = self.site.config['OUTPUT_FOLDER']
  69             self.site.scan_posts()
  70             for post in self.site.timeline:
  71                 if (not deploy_drafts and post.is_draft) or \
  72                    (not deploy_future and post.publish_later):
  73                     remove_file(os.path.join(out_dir, post.destination_path()))
  74                     remove_file(os.path.join(out_dir, post.source_path))
  75                     undeployed_posts.append(post)
  76 
  77         if args:
  78             presets = args
  79         else:
  80             presets = ['default']
  81 
  82         # test for preset existence
  83         for preset in presets:
  84             try:
  85                 self.site.config['DEPLOY_COMMANDS'][preset]
  86             except:
  87                 self.logger.error('No such preset: {0}'.format(preset))
  88                 sys.exit(255)
  89 
  90         for preset in presets:
  91             self.logger.info("=> preset '{0}'".format(preset))
  92             for command in self.site.config['DEPLOY_COMMANDS'][preset]:
  93                 self.logger.info("==> {0}".format(command))
  94                 try:
  95                     subprocess.check_call(command, shell=True)
  96                 except subprocess.CalledProcessError as e:
  97                     self.logger.error('Failed deployment — command {0} '
  98                                       'returned {1}'.format(e.cmd, e.returncode))
  99                     sys.exit(e.returncode)
  100 
  101         self.logger.info("Successful deployment")
  102         try:
  103             with io.open(timestamp_path, 'r', encoding='utf8') as inf:
  104                 last_deploy = datetime.strptime(inf.read().strip(), "%Y-%m-%dT%H:%M:%S.%f")
  105                 clean = False
  106         except (IOError, Exception) as e:
  107             self.logger.debug("Problem when reading `{0}`: {1}".format(timestamp_path, e))
  108             last_deploy = datetime(1970, 1, 1)
  109             clean = True
  110 
  111         new_deploy = datetime.utcnow()
  112         self._emit_deploy_event(last_deploy, new_deploy, clean, undeployed_posts)
  113 
  114         os.makedirs(self.site.config['CACHE_FOLDER'])
  115         # Store timestamp of successful deployment
  116         with io.open(timestamp_path, 'w+', encoding='utf8') as outf:
  117             outf.write(unicode_str(new_deploy.isoformat()))
  118 
  119     def _emit_deploy_event(self, last_deploy, new_deploy, clean=False, undeployed=None):
  120         """ Emit events for all timeline entries newer than last deploy.
  121 
  122         last_deploy: datetime
  123             Time stamp of the last successful deployment.
  124 
  125         new_deploy: datetime
  126             Time stamp of the current deployment.
  127 
  128         clean: bool
  129             True when it appears like deploy is being run after a clean.
  130 
  131         """
  132 
  133         event = {
  134             'last_deploy': last_deploy,
  135             'new_deploy': new_deploy,
  136             'clean': clean,
  137             'undeployed': undeployed
  138         }
  139 
  140         if last_deploy.tzinfo is None:
  141             last_deploy = last_deploy.replace(tzinfo=gettz('UTC'))
  142 
  143         deployed = [
  144             entry for entry in self.site.timeline
  145             if entry.date > last_deploy and entry not in undeployed
  146         ]
  147 
  148         event['deployed'] = deployed
  149 
  150         if len(deployed) > 0 or len(undeployed) > 0:
  151             signal('deployed').send(event)
  152
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/nikola/plugins/command/deploy.py b/nikola/plugins/command/deploy.py
  --- a/nikola/plugins/command/deploy.py
  +++ b/nikola/plugins/command/deploy.py
  @@ -36,7 +36,7 @@
   from blinker import signal
   
   from nikola.plugin_categories import Command
  -from nikola.utils import get_logger, remove_file, unicode_str
  +from nikola.utils import get_logger, remove_file, unicode_str, makedirs
   
   
   class CommandDeploy(Command):
  @@ -111,7 +111,7 @@
           new_deploy = datetime.utcnow()
           self._emit_deploy_event(last_deploy, new_deploy, clean, undeployed_posts)
   
  -        os.makedirs(self.site.config['CACHE_FOLDER'])
  +        makedirs(self.site.config['CACHE_FOLDER'])
           # Store timestamp of successful deployment
           with io.open(timestamp_path, 'w+', encoding='utf8') as outf:
               outf.write(unicode_str(new_deploy.isoformat()))
  
verification_info: {"golden_diff": "diff --git a/nikola/plugins/command/deploy.py b/nikola/plugins/command/deploy.py\n--- a/nikola/plugins/command/deploy.py\n+++ b/nikola/plugins/command/deploy.py\n@@ -36,7 +36,7 @@\n from blinker import signal\n \n from nikola.plugin_categories import Command\n-from nikola.utils import get_logger, remove_file, unicode_str\n+from nikola.utils import get_logger, remove_file, unicode_str, makedirs\n \n \n class CommandDeploy(Command):\n@@ -111,7 +111,7 @@\n         new_deploy = datetime.utcnow()\n         self._emit_deploy_event(last_deploy, new_deploy, clean, undeployed_posts)\n \n-        os.makedirs(self.site.config['CACHE_FOLDER'])\n+        makedirs(self.site.config['CACHE_FOLDER'])\n         # Store timestamp of successful deployment\n         with io.open(timestamp_path, 'w+', encoding='utf8') as outf:\n             outf.write(unicode_str(new_deploy.isoformat()))\n", "issue": "Cannot deploy after removing cache\nHello,\n\nthe deploy command crashes like this:\n\nIOError: [Errno 2] No such file or directory: 'cache/lastdeploy'\n\nWhy, yes, of course, I can remove \"cache\", can't I? Seems I have to \"mkdir\" it. Also I would like to disable its usage, as the point is unclear to my, using rsync does the trick to me.\n\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n\n# Copyright \u00a9 2012-2015 Roberto Alsina and others.\n\n# Permission is hereby granted, free of charge, to any\n# person obtaining a copy of this software and associated\n# documentation files (the \"Software\"), to deal in the\n# Software without restriction, including without limitation\n# the rights to use, copy, modify, merge, publish,\n# distribute, sublicense, and/or sell copies of the\n# Software, and to permit persons to whom the Software is\n# furnished to do so, subject to the following conditions:\n#\n# The above copyright notice and this permission notice\n# shall be included in all copies or substantial portions of\n# the Software.\n#\n# THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY\n# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE\n# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR\n# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS\n# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR\n# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\n# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nfrom __future__ import print_function\nimport io\nfrom datetime import datetime\nfrom dateutil.tz import gettz\nimport os\nimport sys\nimport subprocess\nimport time\n\nfrom blinker import signal\n\nfrom nikola.plugin_categories import Command\nfrom nikola.utils import get_logger, remove_file, unicode_str\n\n\nclass CommandDeploy(Command):\n    \"\"\"Deploy site.\"\"\"\n    name = \"deploy\"\n\n    doc_usage = \"[[preset [preset...]]\"\n    doc_purpose = \"deploy the site\"\n    doc_description = \"Deploy the site by executing deploy commands from the presets listed on the command line.  If no presets are specified, `default` is executed.\"\n    logger = None\n\n    def _execute(self, command, args):\n        self.logger = get_logger('deploy', self.site.loghandlers)\n        # Get last successful deploy date\n        timestamp_path = os.path.join(self.site.config['CACHE_FOLDER'], 'lastdeploy')\n        if self.site.config['COMMENT_SYSTEM_ID'] == 'nikolademo':\n            self.logger.warn(\"\\nWARNING WARNING WARNING WARNING\\n\"\n                             \"You are deploying using the nikolademo Disqus account.\\n\"\n                             \"That means you will not be able to moderate the comments in your own site.\\n\"\n                             \"And is probably not what you want to do.\\n\"\n                             \"Think about it for 5 seconds, I'll wait :-)\\n\\n\")\n            time.sleep(5)\n\n        deploy_drafts = self.site.config.get('DEPLOY_DRAFTS', True)\n        deploy_future = self.site.config.get('DEPLOY_FUTURE', False)\n        undeployed_posts = []\n        if not (deploy_drafts and deploy_future):\n            # Remove drafts and future posts\n            out_dir = self.site.config['OUTPUT_FOLDER']\n            self.site.scan_posts()\n            for post in self.site.timeline:\n                if (not deploy_drafts and post.is_draft) or \\\n                   (not deploy_future and post.publish_later):\n                    remove_file(os.path.join(out_dir, post.destination_path()))\n                    remove_file(os.path.join(out_dir, post.source_path))\n                    undeployed_posts.append(post)\n\n        if args:\n            presets = args\n        else:\n            presets = ['default']\n\n        # test for preset existence\n        for preset in presets:\n            try:\n                self.site.config['DEPLOY_COMMANDS'][preset]\n            except:\n                self.logger.error('No such preset: {0}'.format(preset))\n                sys.exit(255)\n\n        for preset in presets:\n            self.logger.info(\"=> preset '{0}'\".format(preset))\n            for command in self.site.config['DEPLOY_COMMANDS'][preset]:\n                self.logger.info(\"==> {0}\".format(command))\n                try:\n                    subprocess.check_call(command, shell=True)\n                except subprocess.CalledProcessError as e:\n                    self.logger.error('Failed deployment \u2014 command {0} '\n                                      'returned {1}'.format(e.cmd, e.returncode))\n                    sys.exit(e.returncode)\n\n        self.logger.info(\"Successful deployment\")\n        try:\n            with io.open(timestamp_path, 'r', encoding='utf8') as inf:\n                last_deploy = datetime.strptime(inf.read().strip(), \"%Y-%m-%dT%H:%M:%S.%f\")\n                clean = False\n        except (IOError, Exception) as e:\n            self.logger.debug(\"Problem when reading `{0}`: {1}\".format(timestamp_path, e))\n            last_deploy = datetime(1970, 1, 1)\n            clean = True\n\n        new_deploy = datetime.utcnow()\n        self._emit_deploy_event(last_deploy, new_deploy, clean, undeployed_posts)\n\n        os.makedirs(self.site.config['CACHE_FOLDER'])\n        # Store timestamp of successful deployment\n        with io.open(timestamp_path, 'w+', encoding='utf8') as outf:\n            outf.write(unicode_str(new_deploy.isoformat()))\n\n    def _emit_deploy_event(self, last_deploy, new_deploy, clean=False, undeployed=None):\n        \"\"\" Emit events for all timeline entries newer than last deploy.\n\n        last_deploy: datetime\n            Time stamp of the last successful deployment.\n\n        new_deploy: datetime\n            Time stamp of the current deployment.\n\n        clean: bool\n            True when it appears like deploy is being run after a clean.\n\n        \"\"\"\n\n        event = {\n            'last_deploy': last_deploy,\n            'new_deploy': new_deploy,\n            'clean': clean,\n            'undeployed': undeployed\n        }\n\n        if last_deploy.tzinfo is None:\n            last_deploy = last_deploy.replace(tzinfo=gettz('UTC'))\n\n        deployed = [\n            entry for entry in self.site.timeline\n            if entry.date > last_deploy and entry not in undeployed\n        ]\n\n        event['deployed'] = deployed\n\n        if len(deployed) > 0 or len(undeployed) > 0:\n            signal('deployed').send(event)\n", "path": "nikola/plugins/command/deploy.py"}], "after_files": [{"content": "# -*- coding: utf-8 -*-\n\n# Copyright \u00a9 2012-2015 Roberto Alsina and others.\n\n# Permission is hereby granted, free of charge, to any\n# person obtaining a copy of this software and associated\n# documentation files (the \"Software\"), to deal in the\n# Software without restriction, including without limitation\n# the rights to use, copy, modify, merge, publish,\n# distribute, sublicense, and/or sell copies of the\n# Software, and to permit persons to whom the Software is\n# furnished to do so, subject to the following conditions:\n#\n# The above copyright notice and this permission notice\n# shall be included in all copies or substantial portions of\n# the Software.\n#\n# THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY\n# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE\n# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR\n# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS\n# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR\n# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE\n# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nfrom __future__ import print_function\nimport io\nfrom datetime import datetime\nfrom dateutil.tz import gettz\nimport os\nimport sys\nimport subprocess\nimport time\n\nfrom blinker import signal\n\nfrom nikola.plugin_categories import Command\nfrom nikola.utils import get_logger, remove_file, unicode_str, makedirs\n\n\nclass CommandDeploy(Command):\n    \"\"\"Deploy site.\"\"\"\n    name = \"deploy\"\n\n    doc_usage = \"[[preset [preset...]]\"\n    doc_purpose = \"deploy the site\"\n    doc_description = \"Deploy the site by executing deploy commands from the presets listed on the command line.  If no presets are specified, `default` is executed.\"\n    logger = None\n\n    def _execute(self, command, args):\n        self.logger = get_logger('deploy', self.site.loghandlers)\n        # Get last successful deploy date\n        timestamp_path = os.path.join(self.site.config['CACHE_FOLDER'], 'lastdeploy')\n        if self.site.config['COMMENT_SYSTEM_ID'] == 'nikolademo':\n            self.logger.warn(\"\\nWARNING WARNING WARNING WARNING\\n\"\n                             \"You are deploying using the nikolademo Disqus account.\\n\"\n                             \"That means you will not be able to moderate the comments in your own site.\\n\"\n                             \"And is probably not what you want to do.\\n\"\n                             \"Think about it for 5 seconds, I'll wait :-)\\n\\n\")\n            time.sleep(5)\n\n        deploy_drafts = self.site.config.get('DEPLOY_DRAFTS', True)\n        deploy_future = self.site.config.get('DEPLOY_FUTURE', False)\n        undeployed_posts = []\n        if not (deploy_drafts and deploy_future):\n            # Remove drafts and future posts\n            out_dir = self.site.config['OUTPUT_FOLDER']\n            self.site.scan_posts()\n            for post in self.site.timeline:\n                if (not deploy_drafts and post.is_draft) or \\\n                   (not deploy_future and post.publish_later):\n                    remove_file(os.path.join(out_dir, post.destination_path()))\n                    remove_file(os.path.join(out_dir, post.source_path))\n                    undeployed_posts.append(post)\n\n        if args:\n            presets = args\n        else:\n            presets = ['default']\n\n        # test for preset existence\n        for preset in presets:\n            try:\n                self.site.config['DEPLOY_COMMANDS'][preset]\n            except:\n                self.logger.error('No such preset: {0}'.format(preset))\n                sys.exit(255)\n\n        for preset in presets:\n            self.logger.info(\"=> preset '{0}'\".format(preset))\n            for command in self.site.config['DEPLOY_COMMANDS'][preset]:\n                self.logger.info(\"==> {0}\".format(command))\n                try:\n                    subprocess.check_call(command, shell=True)\n                except subprocess.CalledProcessError as e:\n                    self.logger.error('Failed deployment \u2014 command {0} '\n                                      'returned {1}'.format(e.cmd, e.returncode))\n                    sys.exit(e.returncode)\n\n        self.logger.info(\"Successful deployment\")\n        try:\n            with io.open(timestamp_path, 'r', encoding='utf8') as inf:\n                last_deploy = datetime.strptime(inf.read().strip(), \"%Y-%m-%dT%H:%M:%S.%f\")\n                clean = False\n        except (IOError, Exception) as e:\n            self.logger.debug(\"Problem when reading `{0}`: {1}\".format(timestamp_path, e))\n            last_deploy = datetime(1970, 1, 1)\n            clean = True\n\n        new_deploy = datetime.utcnow()\n        self._emit_deploy_event(last_deploy, new_deploy, clean, undeployed_posts)\n\n        makedirs(self.site.config['CACHE_FOLDER'])\n        # Store timestamp of successful deployment\n        with io.open(timestamp_path, 'w+', encoding='utf8') as outf:\n            outf.write(unicode_str(new_deploy.isoformat()))\n\n    def _emit_deploy_event(self, last_deploy, new_deploy, clean=False, undeployed=None):\n        \"\"\" Emit events for all timeline entries newer than last deploy.\n\n        last_deploy: datetime\n            Time stamp of the last successful deployment.\n\n        new_deploy: datetime\n            Time stamp of the current deployment.\n\n        clean: bool\n            True when it appears like deploy is being run after a clean.\n\n        \"\"\"\n\n        event = {\n            'last_deploy': last_deploy,\n            'new_deploy': new_deploy,\n            'clean': clean,\n            'undeployed': undeployed\n        }\n\n        if last_deploy.tzinfo is None:\n            last_deploy = last_deploy.replace(tzinfo=gettz('UTC'))\n\n        deployed = [\n            entry for entry in self.site.timeline\n            if entry.date > last_deploy and entry not in undeployed\n        ]\n\n        event['deployed'] = deployed\n\n        if len(deployed) > 0 or len(undeployed) > 0:\n            signal('deployed').send(event)\n", "path": "nikola/plugins/command/deploy.py"}]}