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-rwxr-xr-xgit-stash.sh609
1 files changed, 609 insertions, 0 deletions
diff --git a/git-stash.sh b/git-stash.sh
new file mode 100755
index 0000000000..1e541a2125
--- /dev/null
+++ b/git-stash.sh
@@ -0,0 +1,609 @@
+#!/bin/sh
+# Copyright (c) 2007, Nanako Shiraishi
+
+dashless=$(basename "$0" | sed -e 's/-/ /')
+USAGE="list [<options>]
+ or: $dashless show [<stash>]
+ or: $dashless drop [-q|--quiet] [<stash>]
+ or: $dashless ( pop | apply ) [--index] [-q|--quiet] [<stash>]
+ or: $dashless branch <branchname> [<stash>]
+ or: $dashless [save [--patch] [-k|--[no-]keep-index] [-q|--quiet]
+ [-u|--include-untracked] [-a|--all] [<message>]]
+ or: $dashless clear"
+
+SUBDIRECTORY_OK=Yes
+OPTIONS_SPEC=
+START_DIR=`pwd`
+. git-sh-setup
+. git-sh-i18n
+require_work_tree
+cd_to_toplevel
+
+TMP="$GIT_DIR/.git-stash.$$"
+TMPindex=${GIT_INDEX_FILE-"$GIT_DIR/index"}.stash.$$
+trap 'rm -f "$TMP-"* "$TMPindex"' 0
+
+ref_stash=refs/stash
+
+if git config --get-colorbool color.interactive; then
+ help_color="$(git config --get-color color.interactive.help 'red bold')"
+ reset_color="$(git config --get-color '' reset)"
+else
+ help_color=
+ reset_color=
+fi
+
+no_changes () {
+ git diff-index --quiet --cached HEAD --ignore-submodules -- &&
+ git diff-files --quiet --ignore-submodules &&
+ (test -z "$untracked" || test -z "$(untracked_files)")
+}
+
+untracked_files () {
+ excl_opt=--exclude-standard
+ test "$untracked" = "all" && excl_opt=
+ git ls-files -o -z $excl_opt
+}
+
+clear_stash () {
+ if test $# != 0
+ then
+ die "$(gettext "git stash clear with parameters is unimplemented")"
+ fi
+ if current=$(git rev-parse --verify $ref_stash 2>/dev/null)
+ then
+ git update-ref -d $ref_stash $current
+ fi
+}
+
+create_stash () {
+ stash_msg="$1"
+ untracked="$2"
+
+ git update-index -q --refresh
+ if no_changes
+ then
+ exit 0
+ fi
+
+ # state of the base commit
+ if b_commit=$(git rev-parse --verify HEAD)
+ then
+ head=$(git rev-list --oneline -n 1 HEAD --)
+ else
+ die "$(gettext "You do not have the initial commit yet")"
+ fi
+
+ if branch=$(git symbolic-ref -q HEAD)
+ then
+ branch=${branch#refs/heads/}
+ else
+ branch='(no branch)'
+ fi
+ msg=$(printf '%s: %s' "$branch" "$head")
+
+ # state of the index
+ i_tree=$(git write-tree) &&
+ i_commit=$(printf 'index on %s\n' "$msg" |
+ git commit-tree $i_tree -p $b_commit) ||
+ die "$(gettext "Cannot save the current index state")"
+
+ if test -n "$untracked"
+ then
+ # Untracked files are stored by themselves in a parentless commit, for
+ # ease of unpacking later.
+ u_commit=$(
+ untracked_files | (
+ export GIT_INDEX_FILE="$TMPindex"
+ rm -f "$TMPindex" &&
+ git update-index -z --add --remove --stdin &&
+ u_tree=$(git write-tree) &&
+ printf 'untracked files on %s\n' "$msg" | git commit-tree $u_tree &&
+ rm -f "$TMPindex"
+ ) ) || die "Cannot save the untracked files"
+
+ untracked_commit_option="-p $u_commit";
+ else
+ untracked_commit_option=
+ fi
+
+ if test -z "$patch_mode"
+ then
+
+ # state of the working tree
+ w_tree=$( (
+ git read-tree --index-output="$TMPindex" -m $i_tree &&
+ GIT_INDEX_FILE="$TMPindex" &&
+ export GIT_INDEX_FILE &&
+ git diff --name-only -z HEAD -- >"$TMP-stagenames" &&
+ git update-index -z --add --remove --stdin <"$TMP-stagenames" &&
+ git write-tree &&
+ rm -f "$TMPindex"
+ ) ) ||
+ die "$(gettext "Cannot save the current worktree state")"
+
+ else
+
+ rm -f "$TMP-index" &&
+ GIT_INDEX_FILE="$TMP-index" git read-tree HEAD &&
+
+ # find out what the user wants
+ GIT_INDEX_FILE="$TMP-index" \
+ git add--interactive --patch=stash -- &&
+
+ # state of the working tree
+ w_tree=$(GIT_INDEX_FILE="$TMP-index" git write-tree) ||
+ die "$(gettext "Cannot save the current worktree state")"
+
+ git diff-tree -p HEAD $w_tree -- >"$TMP-patch" &&
+ test -s "$TMP-patch" ||
+ die "$(gettext "No changes selected")"
+
+ rm -f "$TMP-index" ||
+ die "$(gettext "Cannot remove temporary index (can't happen)")"
+
+ fi
+
+ # create the stash
+ if test -z "$stash_msg"
+ then
+ stash_msg=$(printf 'WIP on %s' "$msg")
+ else
+ stash_msg=$(printf 'On %s: %s' "$branch" "$stash_msg")
+ fi
+ w_commit=$(printf '%s\n' "$stash_msg" |
+ git commit-tree $w_tree -p $b_commit -p $i_commit $untracked_commit_option) ||
+ die "$(gettext "Cannot record working tree state")"
+}
+
+store_stash () {
+ while test $# != 0
+ do
+ case "$1" in
+ -m|--message)
+ shift
+ stash_msg="$1"
+ ;;
+ -q|--quiet)
+ quiet=t
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+ test $# = 1 ||
+ die "$(eval_gettext "\"$dashless store\" requires one <commit> argument")"
+
+ w_commit="$1"
+ if test -z "$stash_msg"
+ then
+ stash_msg="Created via \"git stash store\"."
+ fi
+
+ # Make sure the reflog for stash is kept.
+ : >>"$GIT_DIR/logs/$ref_stash"
+ git update-ref -m "$stash_msg" $ref_stash $w_commit
+ ret=$?
+ test $ret != 0 && test -z $quiet &&
+ die "$(eval_gettext "Cannot update \$ref_stash with \$w_commit")"
+ return $ret
+}
+
+save_stash () {
+ keep_index=
+ patch_mode=
+ untracked=
+ while test $# != 0
+ do
+ case "$1" in
+ -k|--keep-index)
+ keep_index=t
+ ;;
+ --no-keep-index)
+ keep_index=n
+ ;;
+ -p|--patch)
+ patch_mode=t
+ # only default to keep if we don't already have an override
+ test -z "$keep_index" && keep_index=t
+ ;;
+ -q|--quiet)
+ GIT_QUIET=t
+ ;;
+ -u|--include-untracked)
+ untracked=untracked
+ ;;
+ -a|--all)
+ untracked=all
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ option="$1"
+ # TRANSLATORS: $option is an invalid option, like
+ # `--blah-blah'. The 7 spaces at the beginning of the
+ # second line correspond to "error: ". So you should line
+ # up the second line with however many characters the
+ # translation of "error: " takes in your language. E.g. in
+ # English this is:
+ #
+ # $ git stash save --blah-blah 2>&1 | head -n 2
+ # error: unknown option for 'stash save': --blah-blah
+ # To provide a message, use git stash save -- '--blah-blah'
+ eval_gettextln "error: unknown option for 'stash save': \$option
+ To provide a message, use git stash save -- '\$option'"
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
+ if test -n "$patch_mode" && test -n "$untracked"
+ then
+ die "Can't use --patch and --include-untracked or --all at the same time"
+ fi
+
+ stash_msg="$*"
+
+ git update-index -q --refresh
+ if no_changes
+ then
+ say "$(gettext "No local changes to save")"
+ exit 0
+ fi
+ test -f "$GIT_DIR/logs/$ref_stash" ||
+ clear_stash || die "$(gettext "Cannot initialize stash")"
+
+ create_stash "$stash_msg" $untracked
+ store_stash -m "$stash_msg" -q $w_commit ||
+ die "$(gettext "Cannot save the current status")"
+ say Saved working directory and index state "$stash_msg"
+
+ if test -z "$patch_mode"
+ then
+ git reset --hard ${GIT_QUIET:+-q}
+ test "$untracked" = "all" && CLEAN_X_OPTION=-x || CLEAN_X_OPTION=
+ if test -n "$untracked"
+ then
+ git clean --force --quiet -d $CLEAN_X_OPTION
+ fi
+
+ if test "$keep_index" = "t" && test -n $i_tree
+ then
+ git read-tree --reset -u $i_tree
+ fi
+ else
+ git apply -R < "$TMP-patch" ||
+ die "$(gettext "Cannot remove worktree changes")"
+
+ if test "$keep_index" != "t"
+ then
+ git reset
+ fi
+ fi
+}
+
+have_stash () {
+ git rev-parse --verify $ref_stash >/dev/null 2>&1
+}
+
+list_stash () {
+ have_stash || return 0
+ git log --format="%gd: %gs" -g "$@" $ref_stash --
+}
+
+show_stash () {
+ assert_stash_like "$@"
+
+ git diff ${FLAGS:---stat} $b_commit $w_commit
+}
+
+#
+# Parses the remaining options looking for flags and
+# at most one revision defaulting to ${ref_stash}@{0}
+# if none found.
+#
+# Derives related tree and commit objects from the
+# revision, if one is found.
+#
+# stash records the work tree, and is a merge between the
+# base commit (first parent) and the index tree (second parent).
+#
+# REV is set to the symbolic version of the specified stash-like commit
+# IS_STASH_LIKE is non-blank if ${REV} looks like a stash
+# IS_STASH_REF is non-blank if the ${REV} looks like a stash ref
+# s is set to the SHA1 of the stash commit
+# w_commit is set to the commit containing the working tree
+# b_commit is set to the base commit
+# i_commit is set to the commit containing the index tree
+# u_commit is set to the commit containing the untracked files tree
+# w_tree is set to the working tree
+# b_tree is set to the base tree
+# i_tree is set to the index tree
+# u_tree is set to the untracked files tree
+#
+# GIT_QUIET is set to t if -q is specified
+# INDEX_OPTION is set to --index if --index is specified.
+# FLAGS is set to the remaining flags
+#
+# dies if:
+# * too many revisions specified
+# * no revision is specified and there is no stash stack
+# * a revision is specified which cannot be resolve to a SHA1
+# * a non-existent stash reference is specified
+#
+
+parse_flags_and_rev()
+{
+ test "$PARSE_CACHE" = "$*" && return 0 # optimisation
+ PARSE_CACHE="$*"
+
+ IS_STASH_LIKE=
+ IS_STASH_REF=
+ INDEX_OPTION=
+ s=
+ w_commit=
+ b_commit=
+ i_commit=
+ u_commit=
+ w_tree=
+ b_tree=
+ i_tree=
+ u_tree=
+
+ REV=$(git rev-parse --no-flags --symbolic "$@") || exit 1
+
+ FLAGS=
+ for opt
+ do
+ case "$opt" in
+ -q|--quiet)
+ GIT_QUIET=-t
+ ;;
+ --index)
+ INDEX_OPTION=--index
+ ;;
+ -*)
+ FLAGS="${FLAGS}${FLAGS:+ }$opt"
+ ;;
+ esac
+ done
+
+ set -- $REV
+
+ case $# in
+ 0)
+ have_stash || die "$(gettext "No stash found.")"
+ set -- ${ref_stash}@{0}
+ ;;
+ 1)
+ :
+ ;;
+ *)
+ die "$(eval_gettext "Too many revisions specified: \$REV")"
+ ;;
+ esac
+
+ REV=$(git rev-parse --quiet --symbolic --verify $1 2>/dev/null) || {
+ reference="$1"
+ die "$(eval_gettext "\$reference is not valid reference")"
+ }
+
+ i_commit=$(git rev-parse --quiet --verify $REV^2 2>/dev/null) &&
+ set -- $(git rev-parse $REV $REV^1 $REV: $REV^1: $REV^2: 2>/dev/null) &&
+ s=$1 &&
+ w_commit=$1 &&
+ b_commit=$2 &&
+ w_tree=$3 &&
+ b_tree=$4 &&
+ i_tree=$5 &&
+ IS_STASH_LIKE=t &&
+ test "$ref_stash" = "$(git rev-parse --symbolic-full-name "${REV%@*}")" &&
+ IS_STASH_REF=t
+
+ u_commit=$(git rev-parse --quiet --verify $REV^3 2>/dev/null) &&
+ u_tree=$(git rev-parse $REV^3: 2>/dev/null)
+}
+
+is_stash_like()
+{
+ parse_flags_and_rev "$@"
+ test -n "$IS_STASH_LIKE"
+}
+
+assert_stash_like() {
+ is_stash_like "$@" || {
+ args="$*"
+ die "$(eval_gettext "'\$args' is not a stash-like commit")"
+ }
+}
+
+is_stash_ref() {
+ is_stash_like "$@" && test -n "$IS_STASH_REF"
+}
+
+assert_stash_ref() {
+ is_stash_ref "$@" || {
+ args="$*"
+ die "$(eval_gettext "'\$args' is not a stash reference")"
+ }
+}
+
+apply_stash () {
+
+ assert_stash_like "$@"
+
+ git update-index -q --refresh || die "$(gettext "unable to refresh index")"
+
+ # current index state
+ c_tree=$(git write-tree) ||
+ die "$(gettext "Cannot apply a stash in the middle of a merge")"
+
+ unstashed_index_tree=
+ if test -n "$INDEX_OPTION" && test "$b_tree" != "$i_tree" &&
+ test "$c_tree" != "$i_tree"
+ then
+ git diff-tree --binary $s^2^..$s^2 | git apply --cached
+ test $? -ne 0 &&
+ die "$(gettext "Conflicts in index. Try without --index.")"
+ unstashed_index_tree=$(git write-tree) ||
+ die "$(gettext "Could not save index tree")"
+ git reset
+ fi
+
+ if test -n "$u_tree"
+ then
+ GIT_INDEX_FILE="$TMPindex" git-read-tree "$u_tree" &&
+ GIT_INDEX_FILE="$TMPindex" git checkout-index --all &&
+ rm -f "$TMPindex" ||
+ die 'Could not restore untracked files from stash'
+ fi
+
+ eval "
+ GITHEAD_$w_tree='Stashed changes' &&
+ GITHEAD_$c_tree='Updated upstream' &&
+ GITHEAD_$b_tree='Version stash was based on' &&
+ export GITHEAD_$w_tree GITHEAD_$c_tree GITHEAD_$b_tree
+ "
+
+ if test -n "$GIT_QUIET"
+ then
+ GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
+ fi
+ if git merge-recursive $b_tree -- $c_tree $w_tree
+ then
+ # No conflict
+ if test -n "$unstashed_index_tree"
+ then
+ git read-tree "$unstashed_index_tree"
+ else
+ a="$TMP-added" &&
+ git diff-index --cached --name-only --diff-filter=A $c_tree >"$a" &&
+ git read-tree --reset $c_tree &&
+ git update-index --add --stdin <"$a" ||
+ die "$(gettext "Cannot unstage modified files")"
+ rm -f "$a"
+ fi
+ squelch=
+ if test -n "$GIT_QUIET"
+ then
+ squelch='>/dev/null 2>&1'
+ fi
+ (cd "$START_DIR" && eval "git status $squelch") || :
+ else
+ # Merge conflict; keep the exit status from merge-recursive
+ status=$?
+ git rerere
+ if test -n "$INDEX_OPTION"
+ then
+ gettextln "Index was not unstashed." >&2
+ fi
+ exit $status
+ fi
+}
+
+pop_stash() {
+ assert_stash_ref "$@"
+
+ apply_stash "$@" &&
+ drop_stash "$@"
+}
+
+drop_stash () {
+ assert_stash_ref "$@"
+
+ git reflog delete --updateref --rewrite "${REV}" &&
+ say "$(eval_gettext "Dropped \${REV} (\$s)")" ||
+ die "$(eval_gettext "\${REV}: Could not drop stash entry")"
+
+ # clear_stash if we just dropped the last stash entry
+ git rev-parse --verify "$ref_stash@{0}" >/dev/null 2>&1 || clear_stash
+}
+
+apply_to_branch () {
+ test -n "$1" || die "$(gettext "No branch name specified")"
+ branch=$1
+ shift 1
+
+ set -- --index "$@"
+ assert_stash_like "$@"
+
+ git checkout -b $branch $REV^ &&
+ apply_stash "$@" && {
+ test -z "$IS_STASH_REF" || drop_stash "$@"
+ }
+}
+
+PARSE_CACHE='--not-parsed'
+# The default command is "save" if nothing but options are given
+seen_non_option=
+for opt
+do
+ case "$opt" in
+ -*) ;;
+ *) seen_non_option=t; break ;;
+ esac
+done
+
+test -n "$seen_non_option" || set "save" "$@"
+
+# Main command set
+case "$1" in
+list)
+ shift
+ list_stash "$@"
+ ;;
+show)
+ shift
+ show_stash "$@"
+ ;;
+save)
+ shift
+ save_stash "$@"
+ ;;
+apply)
+ shift
+ apply_stash "$@"
+ ;;
+clear)
+ shift
+ clear_stash "$@"
+ ;;
+create)
+ shift
+ create_stash "$*" && echo "$w_commit"
+ ;;
+store)
+ shift
+ store_stash "$@"
+ ;;
+drop)
+ shift
+ drop_stash "$@"
+ ;;
+pop)
+ shift
+ pop_stash "$@"
+ ;;
+branch)
+ shift
+ apply_to_branch "$@"
+ ;;
+*)
+ case $# in
+ 0)
+ save_stash &&
+ say "$(gettext "(To restore them type \"git stash apply\")")"
+ ;;
+ *)
+ usage
+ esac
+ ;;
+esac
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 07:35:53 +0000