55 lines
1.9 KiB
Bash
55 lines
1.9 KiB
Bash
#!/bin/sh
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# A hook called by `git commit` to adjust the commit message right before the user sees it
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##########################################################################################
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#
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# This script is called by `git commit` after commit message was initialized and right before
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# an editor is launched.
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#
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# It receives one to three arguments:
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#
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# $1 - the path to the file containing the commit message. It can be edited to change the message.
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# $2 - the kind of source of the message contained in $1. Possible values are
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# "message" - a message was provided via `-m` or `-F`
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# "commit" - `-c`, `-C` or `--amend` was given
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# "squash" - the `.git/SQUASH_MSG` file exists
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# "merge" - this is a merge or the `.git/MERGE` file exists
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# "template" - `-t` was provided or `commit.template` was set
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# $3 - If $2 is "commit" then this is the hash of the commit.
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# It can also take other values, best understood by studying the source code at
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# https://github.com/git/git/blob/aa9166bcc0ba654fc21f198a30647ec087f733ed/builtin/commit.c#L745
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#
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# The following example
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#
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# To enable this hook remove the `.sample` suffix from this file entirely.
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COMMIT_MSG_FILE=$1
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# Check if the commit message file is empty or already contains a message
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if [ -s "$COMMIT_MSG_FILE" ]; then
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# If the commit message is already provided, exit without making any changes.
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# This can happen if the user provided a message via `-m` or a template.
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exit 0
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fi
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# Retrieve the branch name from the current HEAD commit
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BRANCH_NAME=$(git symbolic-ref --short HEAD)
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# Generate a default commit message based on the branch name
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DEFAULT_MSG=""
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case "$BRANCH_NAME" in
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"feature/*")
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DEFAULT_MSG="feat: "
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;;
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"bugfix/*")
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DEFAULT_MSG="fix: "
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;;
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*)
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DEFAULT_MSG="chore: "
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;;
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esac
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# Set the commit message that will be presented to the user.
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echo "$DEFAULT_MSG" > "$COMMIT_MSG_FILE"
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