dotfiles/home/bin/git-freeze
2021-01-12 18:33:49 -06:00

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#!/bin/sh
#
# Copyright (c) 2011 Scott Moynes
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
OPTIONS_SPEC="\
git freeze -l [-r] [<remote-name>]
git freeze -t <frozen-name>
git freeze -p [-d] [<remote-name>] <frozen-name>
git freeze -f [<remote-name>] <branch-name>
Archive refs to freezer.
--
h show help
Global options
r,remote operate on remotes
d,delete delete frozen branch from remotes
Command options
l,list list frozen refs
t,thaw thaw frozen ref into a branch
p,push push frozen ref to remote
f,fetch fetch frozen ref from remote
"""
SUBDIRECTORY_OK=1
. "$(git --exec-path)/git-sh-setup"
for arg; do
case "$arg" in
# Global options
-r) REMOTE_OPT=1 ; shift ;;
-a) ALL_OPT=1 ; shift ;;
-d) DELETE_OPT=1; shift ;;
# Command options
-l) LIST_COMMAND=1 ; shift ;;
-t) THAW_COMMAND=1 ; shift ;;
-p) PUSH_COMMAND=1 ; shift ;;
-f) FETCH_COMMAND=1 ; shift ;;
--) shift; break ;;
esac
done
list() {
if [ -z "$REMOTE_OPT" ]; then
git show-ref --abbrev=8 | \
sane_grep 'refs/freezer/' | \
LANG=C LC_ALL=C sed -e 's|\([0-9a-f]*\) refs/freezer/\(.*\)|\2 (\1)|'
else
git ls-remote | sane_grep 'refs/freezer/' | \
LANG=C LC_ALL=C sed -e 's|\([0-9a-f]\{8\}\).*refs/freezer/\(.*\)|\2 (\1)|'
fi
}
thaw() {
BRANCH="$1"
if [ -z "$BRANCH" ]; then
die "Frozen branch name argument required"
fi
FREEZER_REF=$(git show-ref --hash refs/freezer/$BRANCH)
echo Thawing branch: $BRANCH
git update-ref refs/heads/$BRANCH $FREEZER_REF || \
die "Error: unable to thaw ref refs/heads/$BRANCH $FREEZER_REF"
git update-ref -d refs/freezer/$BRANCH $FREEZER_REF
}
push() {
if [ -z "$2" ]; then
REMOTE=origin
BRANCH=$1
else
REMOTE=$1
BRANCH=$2
fi
if [ -z "$BRANCH" ]; then
die "Frozen branch name argument required"
fi
if [ -z "$DELETE_OPT" ]; then
git push "$REMOTE" "refs/freezer/$BRANCH:refs/freezer/$BRANCH"
else
git push "$REMOTE" ":refs/freezer/$BRANCH"
fi
}
freeze() {
BRANCH="$1"
if [ -z "$BRANCH" ]; then
die "Branch name argument is required"
fi
BRANCH_REF=$(git show-ref --hash --heads "$BRANCH")
if [ $? -ne 0 ]; then
die "Branch does not exist: $BRANCH"
fi
echo Freezing branch: $BRANCH
git update-ref refs/freezer/$BRANCH $BRANCH_REF || \
die "Error: unable to update ref refs/freezer/$BRANCH $BRANCH_REF"
git branch -D $BRANCH 2>&1 > /dev/null || die "Unable to delete branch $BRANCH"
}
fetch() {
if [ -z "$2" ]; then
REMOTE=origin
BRANCH=$1
else
REMOTE=$1
BRANCH=$2
fi
: ${BRANCH:="*"} ${REMOTE:=origin}
echo Fetching frozen branches
git fetch $REMOTE "refs/freezer/${BRANCH}:refs/freezer/${BRANCH}"
}
if [ $LIST_COMMAND ]; then
list
elif [ $THAW_COMMAND ]; then
thaw "$1"
elif [ $PUSH_COMMAND ]; then
push "$1" "$2"
elif [ $FETCH_COMMAND ]; then
fetch "$1" "$2"
else
freeze "$1"
fi