#!/bin/sh # Copyright (c) 2007, Nanako Shiraishi dashless=$(basename "$0" | sed -e 's/-/ /') USAGE="list [] or: $dashless show [] or: $dashless drop [-q|--quiet] [] or: $dashless ( pop | apply ) [--index] [-q|--quiet] [] or: $dashless branch [] or: $dashless [save [--patch] [-k|--[no-]keep-index] [-q|--quiet] [-u|--include-untracked] [-a|--all] []] or: $dashless clear" SUBDIRECTORY_OK=Yes OPTIONS_SPEC= START_DIR=$(pwd) . git-sh-setup require_work_tree cd_to_toplevel TMP="$GIT_DIR/.git-stash.$$" TMPindex=${GIT_INDEX_FILE-"$(git rev-parse --git-path index)"}.stash.$$ 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 --quiet $ref_stash) 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 | ( GIT_INDEX_FILE="$TMPindex" && export GIT_INDEX_FILE && rm -f "$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 "$(gettext "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 argument")" w_commit="$1" if test -z "$stash_msg" then stash_msg="Created via \"git stash store\"." fi git update-ref --create-reflog -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 ;; --help) show_help ;; --) 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 "$(gettext "Can't use --patch and --include-untracked or --all at the same time")" fi stash_msg="$*" git update-index -q --refresh if no_changes then say "$(gettext "No local changes to save")" exit 0 fi git reflog exists $ref_stash || clear_stash || die "$(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 "$(eval_gettext "Saved working directory and index state \$stash_msg")" if test -z "$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 --quiet $ref_stash >/dev/null } list_stash () { have_stash || return 0 git log --format="%gd: %gs" -g --first-parent -m "$@" $ref_stash -- } show_stash () { ALLOW_UNKNOWN_FLAGS=t assert_stash_like "$@" if test -z "$FLAGS" then if test "$(git config --bool stash.showStat || echo true)" = "true" then FLAGS=--stat fi if test "$(git config --bool stash.showPatch || echo false)" = "true" then FLAGS=${FLAGS}${FLAGS:+ }-p fi if test -z "$FLAGS" then return 0 fi fi git diff ${FLAGS} $b_commit $w_commit } show_help () { exec git help stash exit 1 } # # 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 ${REV} looks like a stash ref # s is set to the SHA1 of the stash commit # w_commit is set to the commit containing the working tree # b_commit is set to the base commit # i_commit is set to the commit containing the index tree # u_commit is set to the commit containing the untracked files tree # w_tree is set to the working tree # b_tree is set to the base tree # i_tree is set to the index tree # u_tree is set to the untracked files tree # # GIT_QUIET is set to t if -q is specified # INDEX_OPTION is set to --index if --index is specified. # FLAGS is set to the remaining flags (if allowed) # # dies if: # * too many revisions specified # * no revision is specified and there is no stash stack # * a revision is specified which cannot be resolve to a SHA1 # * a non-existent stash reference is specified # * unknown flags were set and ALLOW_UNKNOWN_FLAGS is not "t" # parse_flags_and_rev() { test "$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=$(git rev-parse --no-flags --symbolic --sq "$@") || exit 1 FLAGS= for opt do case "$opt" in -q|--quiet) GIT_QUIET=-t ;; --index) INDEX_OPTION=--index ;; --help) show_help ;; -*) test "$ALLOW_UNKNOWN_FLAGS" = t || die "$(eval_gettext "unknown option: \$opt")" FLAGS="${FLAGS}${FLAGS:+ }$opt" ;; esac done eval 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 --symbolic --verify --quiet "$1") || { reference="$1" die "$(eval_gettext "\$reference is not a valid reference")" } i_commit=$(git rev-parse --verify --quiet "$REV^2") && 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=$(git rev-parse --verify --quiet "$REV^3") && 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 "$TMPindex" || die "$(gettext "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 $status fi } pop_stash() { assert_stash_ref "$@" if apply_stash "$@" then drop_stash "$@" else status=$? say "$(gettext "The stash is kept in case you need it again.")" exit $status fi } drop_stash () { assert_stash_ref "$@" git reflog delete --updateref --rewrite "${REV}" && say "$(eval_gettext "Dropped \${REV} (\$s)")" || die "$(eval_gettext "\${REV}: Could not drop stash entry")" # clear_stash if we just dropped the last stash entry git rev-parse --verify --quiet "$ref_stash@{0}" >/dev/null || 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