diff options
Diffstat (limited to 'contrib/examples/git-checkout.sh')
| -rwxr-xr-x | contrib/examples/git-checkout.sh | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/contrib/examples/git-checkout.sh b/contrib/examples/git-checkout.sh deleted file mode 100755 index 683cae7c3f..0000000000 --- a/contrib/examples/git-checkout.sh +++ /dev/null @@ -1,302 +0,0 @@ -#!/bin/sh - -OPTIONS_KEEPDASHDASH=t -OPTIONS_SPEC="\ -git-checkout [options] [<branch>] [<paths>...] --- -b= create a new branch started at <branch> -l create the new branch's reflog -track arrange that the new branch tracks the remote branch -f proceed even if the index or working tree is not HEAD -m merge local modifications into the new branch -q,quiet be quiet -" -SUBDIRECTORY_OK=Sometimes -. git-sh-setup -require_work_tree - -old_name=HEAD -old=$(git rev-parse --verify $old_name 2>/dev/null) -oldbranch=$(git symbolic-ref $old_name 2>/dev/null) -new= -new_name= -force= -branch= -track= -newbranch= -newbranch_log= -merge= -quiet= -v=-v -LF=' -' - -while test $# != 0; do - case "$1" in - -b) - shift - newbranch="$1" - [ -z "$newbranch" ] && - die "git checkout: -b needs a branch name" - git show-ref --verify --quiet -- "refs/heads/$newbranch" && - die "git checkout: branch $newbranch already exists" - git check-ref-format "heads/$newbranch" || - die "git checkout: we do not like '$newbranch' as a branch name." - ;; - -l) - newbranch_log=-l - ;; - --track|--no-track) - track="$1" - ;; - -f) - force=1 - ;; - -m) - merge=1 - ;; - -q|--quiet) - quiet=1 - v= - ;; - --) - shift - break - ;; - *) - usage - ;; - esac - shift -done - -arg="$1" -rev=$(git rev-parse --verify "$arg" 2>/dev/null) -if rev=$(git rev-parse --verify "$rev^0" 2>/dev/null) -then - [ -z "$rev" ] && die "unknown flag $arg" - new_name="$arg" - if git show-ref --verify --quiet -- "refs/heads/$arg" - then - rev=$(git rev-parse --verify "refs/heads/$arg^0") - branch="$arg" - fi - new="$rev" - shift -elif rev=$(git rev-parse --verify "$rev^{tree}" 2>/dev/null) -then - # checking out selected paths from a tree-ish. - new="$rev" - new_name="$rev^{tree}" - shift -fi -[ "$1" = "--" ] && shift - -case "$newbranch,$track" in -,--*) - die "git checkout: --track and --no-track require -b" -esac - -case "$force$merge" in -11) - die "git checkout: -f and -m are incompatible" -esac - -# The behaviour of the command with and without explicit path -# parameters is quite different. -# -# Without paths, we are checking out everything in the work tree, -# possibly switching branches. This is the traditional behaviour. -# -# With paths, we are _never_ switching branch, but checking out -# the named paths from either index (when no rev is given), -# or the named tree-ish (when rev is given). - -if test "$#" -ge 1 -then - hint= - if test "$#" -eq 1 - then - hint=" -Did you intend to checkout '$@' which can not be resolved as commit?" - fi - if test '' != "$newbranch$force$merge" - then - die "git checkout: updating paths is incompatible with switching branches/forcing$hint" - fi - if test '' != "$new" - then - # from a specific tree-ish; note that this is for - # rescuing paths and is never meant to remove what - # is not in the named tree-ish. - git ls-tree --full-name -r "$new" "$@" | - git update-index --index-info || exit $? - fi - - # Make sure the request is about existing paths. - git ls-files --full-name --error-unmatch -- "$@" >/dev/null || exit - git ls-files --full-name -- "$@" | - (cd_to_toplevel && git checkout-index -f -u --stdin) - - # Run a post-checkout hook -- the HEAD does not change so the - # current HEAD is passed in for both args - if test -x "$GIT_DIR"/hooks/post-checkout; then - "$GIT_DIR"/hooks/post-checkout $old $old 0 - fi - - exit $? -else - # Make sure we did not fall back on $arg^{tree} codepath - # since we are not checking out from an arbitrary tree-ish, - # but switching branches. - if test '' != "$new" - then - git rev-parse --verify "$new^{commit}" >/dev/null 2>&1 || - die "Cannot switch branch to a non-commit." - fi -fi - -# We are switching branches and checking out trees, so -# we *NEED* to be at the toplevel. -cd_to_toplevel - -[ -z "$new" ] && new=$old && new_name="$old_name" - -# If we don't have an existing branch that we're switching to, -# and we don't have a new branch name for the target we -# are switching to, then we are detaching our HEAD from any -# branch. However, if "git checkout HEAD" detaches the HEAD -# from the current branch, even though that may be logically -# correct, it feels somewhat funny. More importantly, we do not -# want "git checkout" or "git checkout -f" to detach HEAD. - -detached= -detach_warn= - -describe_detached_head () { - test -n "$quiet" || { - printf >&2 "$1 " - GIT_PAGER= git log >&2 -1 --pretty=oneline --abbrev-commit "$2" -- - } -} - -if test -z "$branch$newbranch" && test "$new_name" != "$old_name" -then - detached="$new" - if test -n "$oldbranch" && test -z "$quiet" - then - detach_warn="Note: moving to \"$new_name\" which isn't a local branch -If you want to create a new branch from this checkout, you may do so -(now or later) by using -b with the checkout command again. Example: - git checkout -b <new_branch_name>" - fi -elif test -z "$oldbranch" && test "$new" != "$old" -then - describe_detached_head 'Previous HEAD position was' "$old" -fi - -if [ "X$old" = X ] -then - if test -z "$quiet" - then - echo >&2 "warning: You appear to be on a branch yet to be born." - echo >&2 "warning: Forcing checkout of $new_name." - fi - force=1 -fi - -if [ "$force" ] -then - git read-tree $v --reset -u $new -else - git update-index --refresh >/dev/null - git read-tree $v -m -u --exclude-per-directory=.gitignore $old $new || ( - case "$merge,$v" in - ,*) - exit 1 ;; - 1,) - ;; # quiet - *) - echo >&2 "Falling back to 3-way merge..." ;; - esac - - # Match the index to the working tree, and do a three-way. - git diff-files --name-only | git update-index --remove --stdin && - work=$(git write-tree) && - git read-tree $v --reset -u $new || exit - - eval GITHEAD_$new='${new_name:-${branch:-$new}}' && - eval GITHEAD_$work=local && - export GITHEAD_$new GITHEAD_$work && - git merge-recursive $old -- $new $work - - # Do not register the cleanly merged paths in the index yet. - # this is not a real merge before committing, but just carrying - # the working tree changes along. - unmerged=$(git ls-files -u) - git read-tree $v --reset $new - case "$unmerged" in - '') ;; - *) - ( - z40=0000000000000000000000000000000000000000 - echo "$unmerged" | - sed -e 's/^[0-7]* [0-9a-f]* /'"0 $z40 /" - echo "$unmerged" - ) | git update-index --index-info - ;; - esac - exit 0 - ) - saved_err=$? - if test "$saved_err" = 0 && test -z "$quiet" - then - git diff-index --name-status "$new" - fi - (exit $saved_err) -fi - -# -# Switch the HEAD pointer to the new branch if we -# checked out a branch head, and remove any potential -# old MERGE_HEAD's (subsequent commits will clearly not -# be based on them, since we re-set the index) -# -if [ "$?" -eq 0 ]; then - if [ "$newbranch" ]; then - git branch $track $newbranch_log "$newbranch" "$new_name" || exit - branch="$newbranch" - fi - if test -n "$branch" - then - old_branch_name=$(expr "z$oldbranch" : 'zrefs/heads/\(.*\)') - GIT_DIR="$GIT_DIR" git symbolic-ref -m "checkout: moving from ${old_branch_name:-$old} to $branch" HEAD "refs/heads/$branch" - if test -n "$quiet" - then - true # nothing - elif test "refs/heads/$branch" = "$oldbranch" - then - echo >&2 "Already on branch \"$branch\"" - else - echo >&2 "Switched to${newbranch:+ a new} branch \"$branch\"" - fi - elif test -n "$detached" - then - old_branch_name=$(expr "z$oldbranch" : 'zrefs/heads/\(.*\)') - git update-ref --no-deref -m "checkout: moving from ${old_branch_name:-$old} to $arg" HEAD "$detached" || - die "Cannot detach HEAD" - if test -n "$detach_warn" - then - echo >&2 "$detach_warn" - fi - describe_detached_head 'HEAD is now at' HEAD - fi - rm -f "$GIT_DIR/MERGE_HEAD" -else - exit 1 -fi - -# Run a post-checkout hook -if test -x "$GIT_DIR"/hooks/post-checkout; then - "$GIT_DIR"/hooks/post-checkout $old $new 1 -fi |