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tg-patch.sh
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tg-patch.sh
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#!/bin/sh
# TopGit - A different patch queue manager
# (c) Petr Baudis <[email protected]> 2008
# GPLv2
name=
topic=
diff_opts=
diff_committed_only=yes # will be unset for index/worktree
## Parse options
while [ -n "$1" ]; do
arg="$1"; shift
case "$arg" in
-i)
topic='(i)'
diff_opts="$diff_opts --cached";
diff_committed_only=;;
-w)
topic='(w)'
diff_committed_only=;;
-*)
echo "Usage: tg [...] patch [-i | -w] [NAME]" >&2
exit 1;;
*)
[ -z "$name" ] || die "name already specified ($name)"
name="$arg";;
esac
done
[ -n "$name" -a -z "$diff_committed_only" ] &&
die "-i/-w are mutually exclusive with NAME"
[ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
die "not a TopGit-controlled branch"
# if not index/worktree, topic is current branch
[ -z "$topic" ] && topic="$name"
setup_pager
cat_file "$topic:.topmsg"
echo
[ -n "$(git grep $diff_opts '^[-]--' ${diff_committed_only:+"$name"} -- ".topmsg")" ] || echo '---'
# Evil obnoxious hack to work around the lack of git diff --exclude
git_is_stupid="$(mktemp -t tg-patch-changes.XXXXXX)"
git diff --name-only $diff_opts "$base_rev" ${diff_committed_only:+"$name"} -- |
fgrep -vx ".topdeps" |
fgrep -vx ".topmsg" >"$git_is_stupid" || : # fgrep likes to fail randomly?
if [ -s "$git_is_stupid" ]; then
cat "$git_is_stupid" | xargs git diff --patch-with-stat $diff_opts "$base_rev" ${diff_committed_only:+"$name"} --
else
echo "No changes."
fi
rm "$git_is_stupid"
echo '-- '
echo "tg: ($base_rev..) $name (depends on: $(cat_file "$topic:.topdeps" | paste -s -d' '))"
branch_contains "$name" "$base_rev" ||
echo "tg: The patch is out-of-date wrt. the base! Run \`$tg update\`."
# vim:noet