You are tasked with implementing a commit linting process for a version control system. Commit linting is a process that checks the commit messages for adherence to specific guidelines or standards.

You are given a code snippet that is part of a larger script responsible for executing the commit linting process. The snippet is as follows:

```shell
echo "commitlint relaxed, not linting $commit...HEAD"
```

Your task is to complete the snippet by implementing the missing code to actually perform the commit linting. The commit linting process should use an external program called commitlint, which is assumed to be installed in the `/usr/local/bin/commitlint` path.

Implement the code that performs the commit linting by using the `commitlint` program with the appropriate arguments and options. The `commitlint` program requires the `--from` option followed by the commit hash (represented by the `$commit` variable) to specify the range of commits to be linted.

Ensure that the commit linting process is correctly executed by redirecting the output of the `commitlint` program to the standard output.

You should handle two cases:

1. If `$commit` is not set or is an empty value, output the commit linting command without executing it. Use the following output message format: `"commitlint relaxed, not linting $commit...HEAD"`. `$commit` should be replaced with its actual value.
2. Otherwise, if `$commit` is set and is a non-empty value, execute the commit linting command and capture the output. Use the following output message format: `"commitlint $commit...HEAD"`. After executing the command, you should output the result of the commit linting command.

Write the necessary code to complete the commit linting snippet and handle the above-mentioned cases.
user
Sure, here's the modified code that covers both cases. It includes your requirement of capturing the output of the commit linting command using the `-e` option and then printing it to the console for debugging purposes.

In this example, I'm assuming that you've already installed the `commitlint` command.

```shell
#!/bin/bash

# Check if commit is set
if [ -z "$commit" ]; then
  echo "commitlint relaxed, not linting $commit...HEAD"
else
  # Check if commit starts with "commitlint"
  if [[ "$commit" == *-commitlint* ]]; then
    echo "commitlint $commit...HEAD"
    # Capture output and print it for debugging
    cmd=$(command -v commitlint)
    output=$(${cmd} --from="${commit}" --to=HEAD 2>&1)
    echo "Output: $output"
  else
    echo "commitlint $commit...HEAD"
    # Capture output and print it for debugging
    cmd=$(command -v taskDoesNotExist)
    # TaskDoesNotExist is not a real command, so this will fail and print the output to the console
    output=$(taskDoesNotExist --from="${commit}" --to=HEAD 2>&1)
    echo "Output: $output"
  fi
fi
```

In the `if` condition, we're checking if the `commit` variable is empty or not. If it's empty, then we're not going to perform any operation on it.

Inside the `if` block, if `commit` starts with "commitlint", then we're going to execute the `commitlint` command. We're also capturing its output as a string and printing it to console for debugging purposes.

If `commit` starts with "task", it's a different task, and it's not in the `commitlint` pattern. In this case, you may want to define your `task` command, and when you're not returning anything, that command is undefined. So, it'll print what it's received, it's for just an example, you need to fill it with a valid command.
assistant
You are tasked with implementing a commit linting process for a version control system. Commit linting is a process that checks the commit messages for adherence to specific guidelines or standards.

You are given a code snippet that is part of a larger script responsible for executing the commit linting process. The snippet is as follows:

```shell
echo "commitlint relaxed, not linting $commit...HEAD"
```

Your task is to complete the snippet by implementing the missing code to actually perform the commit linting. The commit linting process should use an external program called commitlint, which is assumed to be installed in the `/usr/local/bin/commitlint` path.

Implement the code that performs the commit linting by using the `commitlint` program with the appropriate arguments and options. The `commitlint` program requires the `--from` option followed by the commit hash (represented by the `$commit` variable) to specify the range of commits to be linted.

Ensure that the commit linting process is correctly executed by redirecting the output of the `commitlint` program to the standard output.

You should handle two cases:

1. If `$commit` is not set or is an empty value, output the commit linting command without executing it. Use the following output message format: `"commitlint relaxed, not linting $commit...HEAD"`. `$commit` should be replaced with its actual value.
2. Otherwise, if `$commit` is set and is a non-empty value, execute the commit linting command and capture the output. Use the following output message format: `"commitlint $commit...HEAD"`. After executing the command, you should output the result of the commit linting command.

Write the necessary code to complete the commit linting snippet and handle the above-mentioned cases.
user
Sure, here is a shell script snippet that should accomplish the task:

```shell
# Check if $commit is set and non-empty
if [ -z "${commit}" ]; then
    echo "commitlint relaxed, not linting $commit...HEAD"
else
    # Execute commitlint and capture the output
    output=$(/usr/local/bin/commitlint --from="$commit"...HEAD 2>&1)

    # Print the commitlint command
    echo "commitlint $commit...HEAD"

    # Print the output of the commitlint command
    echo "$output"
fi
```

This script first checks if the `$commit` variable is set and non-empty. If it is not set or is empty, it prints a message indicating that commit linting is not being performed. If `$commit` is set and non-empty, it executes the `commitlint` command with the appropriate arguments, captures the output, and prints both the command and the output. The `2>&1` part of the command is used to redirect both standard output and standard error to the variable `output`.
assistant