Commit 68d1d3b4 authored by Brad King's avatar Brad King
Browse files

Prototype pre-commit and commit-msg hook scripts

These hooks perform some basic commit-time checks to keep history clean.
parents
#!/bin/sh
#
# Copy or link this file as ".git/hooks/pre-commit".
die() {
echo 'commit-msg hook failure' 1>&2
echo '-----------------------' 1>&2
echo '' 1>&2
echo "$@" 1>&2
exit 1
}
#-----------------------------------------------------------------------------
# Check the commit message layout with a simple state machine.
msg_first() {
len=$(echo -n "$line" | wc -c)
if test $len -eq 0; then
# not yet first line
return
elif test $len -lt 8; then
die 'The first line must be at least 8 characters:
--------
'"$line"'
--------
'
elif test $len -gt 78; then
die 'The first line may be at most 78 characters:
------------------------------------------------------------------------------
'"$line"'
------------------------------------------------------------------------------
'
else
# first line okay
state=second
fi
}
msg_second() {
if test "x$line" != "x"; then
die 'The second line must be empty:
'"$line"
else
state=rest
fi
}
msg_rest() {
false
}
# Pipe commit message into the state machine.
state=first
cat "$1" | grep -v '^#' |
while read line; do
msg_$state || break
done
#!/bin/sh
#
# Copy or link this file as ".git/hooks/pre-commit".
die() {
echo 'pre-commit hook failure' 1>&2
echo '-----------------------' 1>&2
echo '' 1>&2
echo "$@" 1>&2
exit 1
}
#-----------------------------------------------------------------------------
# Check for committer identity.
git config --get user.name > /dev/null &&
git config --get user.email > /dev/null ||
die 'Identity not configured! Use the commands
git config --global user.name '\''Your Name'\''
git config --global user.email '\''you@yourdomain.com'\''
to introduce yourself to Git before committing.'
#-----------------------------------------------------------------------------
# Check content that will be added by this commit.
if git rev-parse --verify -q HEAD > /dev/null; then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# Disallow non-ascii file names. The printable range starts at the
# space character and ends with tilde.
if test "$(git diff --cached --name-only --diff-filter=A -z $against |
LC_ALL=C tr -d '[ -~]\0')"; then
die 'Non-ascii file names may not be added:
'"$(git diff --cached --name-only --diff-filter=A $against)"
fi
# Builtin whitespace checks.
bad=$(git diff-index --check --cached $against --) || die "$bad"
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