/
lint-commit-message.sh
executable file
·64 lines (52 loc) · 1.87 KB
/
lint-commit-message.sh
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#!/usr/bin/env bash
#
# DO NOT EDIT THIS FILE
#
# It is automatically copied from https://github.com/pion/.goassets repository.
#
# If you want to update the shared CI config, send a PR to
# https://github.com/pion/.goassets instead of this repository.
#
set -e
display_commit_message_error() {
cat << EndOfMessage
$1
-------------------------------------------------
The preceding commit message is invalid
it failed '$2' of the following checks
* Separate subject from body with a blank line
* Limit the subject line to 50 characters
* Capitalize the subject line
* Do not end the subject line with a period
* Wrap the body at 72 characters
EndOfMessage
exit 1
}
lint_commit_message() {
if [[ "$(echo "$1" | awk 'NR == 2 {print $1;}' | wc -c)" -ne 1 ]]; then
display_commit_message_error "$1" 'Separate subject from body with a blank line'
fi
if [[ "$(echo "$1" | head -n1 | awk '{print length}')" -gt 50 ]]; then
display_commit_message_error "$1" 'Limit the subject line to 50 characters'
fi
if [[ ! $1 =~ ^[A-Z] ]]; then
display_commit_message_error "$1" 'Capitalize the subject line'
fi
if [[ "$(echo "$1" | awk 'NR == 1 {print substr($0,length($0),1)}')" == "." ]]; then
display_commit_message_error "$1" 'Do not end the subject line with a period'
fi
if [[ "$(echo "$1" | awk '{print length}' | sort -nr | head -1)" -gt 72 ]]; then
display_commit_message_error "$1" 'Wrap the body at 72 characters'
fi
}
if [ "$#" -eq 1 ]; then
if [ ! -f "$1" ]; then
echo "$0 was passed one argument, but was not a valid file"
exit 1
fi
lint_commit_message "$(sed -n '/# Please enter the commit message for your changes. Lines starting/q;p' "$1")"
else
for COMMIT in $(git rev-list --no-merges origin/master..); do
lint_commit_message "$(git log --format="%B" -n 1 ${COMMIT})"
done
fi