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#!/bin/sh
USAGE='[-l] [(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]] | -r'
LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
If one argument, create a new branch <branchname> based off of current HEAD.
If two arguments, create a new branch <branchname> based off of <start-point>.'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
headref=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
delete_branch () {
option="$1"
shift
for branch_name
do
case ",$headref," in
",$branch_name,")
die "Cannot delete the branch you are on." ;;
,,)
die "What branch are you on anyway?" ;;
esac
branch=$(git-show-ref --verify --hash -- "refs/heads/$branch_name") &&
branch=$(git-rev-parse --verify "$branch^0") ||
die "Seriously, what branch are you talking about?"
case "$option" in
-D)
;;
*)
mbs=$(git-merge-base -a "$branch" HEAD | tr '\012' ' ')
case " $mbs " in
*' '$branch' '*)
# the merge base of branch and HEAD contains branch --
# which means that the HEAD contains everything in both.
;;
*)
echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD.
If you are sure you want to delete it, run 'git branch -D $branch_name'."
exit 1
;;
esac
;;
esac
git update-ref -d "refs/heads/$branch_name" "$branch"
echo "Deleted branch $branch_name."
done
exit 0
}
ls_remote_branches () {
git-rev-parse --symbolic --all |
sed -ne 's|^refs/\(remotes/\)|\1|p' |
sort
}
force=
create_log=
while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac
do
case "$1" in
-d | -D)
delete_branch "$@"
exit
;;
-r)
ls_remote_branches
exit
;;
-f)
force="$1"
;;
-l)
create_log="yes"
;;
--)
shift
break
;;
-*)
usage
;;
esac
shift
done
case "$#" in
0)
git-rev-parse --symbolic --branches |
sort |
while read ref
do
if test "$headref" = "$ref"
then
pfx='*'
else
pfx=' '
fi
echo "$pfx $ref"
done
exit 0 ;;
1)
head=HEAD ;;
2)
head="$2^0" ;;
esac
branchname="$1"
rev=$(git-rev-parse --verify "$head") || exit
git-check-ref-format "heads/$branchname" ||
die "we do not like '$branchname' as a branch name."
prev=''
if git-show-ref --verify --quiet -- "refs/heads/$branchname"
then
if test '' = "$force"
then
die "$branchname already exists."
elif test "$branchname" = "$headref"
then
die "cannot force-update the current branch."
fi
prev=`git rev-parse --verify "refs/heads/$branchname"`
fi
if test "$create_log" = 'yes'
then
mkdir -p $(dirname "$GIT_DIR/logs/refs/heads/$branchname")
touch "$GIT_DIR/logs/refs/heads/$branchname"
fi
git update-ref -m "branch: Created from $head" "refs/heads/$branchname" "$rev" "$prev"
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