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