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git-commit-msg-jira-id-prepend.md

Automatically Prepend a Jira Issue ID to Git Commit Messages

Use a git hook to match a Jira issue ID from the current branch, and prepend it to every commit message

Assuming the current branch contains a Jira issue ID, you can use the following git hook to prepend it to every commit message:

.git/hooks/commit-msg:

#!/bin/sh

COMMIT_FILE=$1
COMMIT_MSG=$(cat $1)
CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
JIRA_ID=$(echo "$CURRENT_BRANCH" | grep -Eo "[A-Z0-9]{1,10}-?[A-Z0-9]+-\d+")

if [ ! -z "$JIRA_ID" ]; then
    echo "$JIRA_ID $COMMIT_MSG" > $COMMIT_FILE
    echo "JIRA ID '$JIRA_ID', matched in current branch name, prepended to commit message. (Use --no-verify to skip)"
fi

References

@zack-snyder
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zack-snyder commented Jul 13, 2017

How can I append the issue number in the next line?
switching to :echo "$COMMIT_MSG $JIRA_ID" > $COMMIT_FILE
doesn't work.

@TheLoneUs
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TheLoneUs commented Jun 4, 2018

@zack-snyder
I know this is old, but:
Have you tried echo -e "$COMMIT_MSG\n$JIRA_ID" > $COMMIT_FILE
-e flag enables interpretation of backslashes and the \n is a newline. No guarantees it will work on all systems, but it should give you an idea of what you need to try.

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