pull --rebase: exit early when the working directory is dirty

diff --git a/git-stash.sh b/git-stash.sh
index 06cb177ec6c10d21f128390edc5bfedfa05db9a9..c2b68205a2b69eb91b2403e11238093fc65c04ef 100755 (executable)
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 # Copyright (c) 2007, Nanako Shiraishi
 
-USAGE='[  | save | list | show | apply | clear | create ]'
+USAGE='[  | save | list | show | apply | clear | drop | pop | create ]'
 
 SUBDIRECTORY_OK=Yes
 OPTIONS_SPEC=
@@ -20,6 +20,10 @@ no_changes () {
 }
 
 clear_stash () {
+       if test $# != 0
+       then
+               die "git stash clear with parameters is unimplemented"
+       fi
        if current=$(git rev-parse --verify $ref_stash 2>/dev/null)
        then
                git update-ref -d $ref_stash $current
@@ -86,7 +90,7 @@ save_stash () {
 
        if no_changes
        then
-               echo >&2 'No local changes to save'
+               echo 'No local changes to save'
                exit 0
        fi
        test -f "$GIT_DIR/logs/$ref_stash" ||
@@ -99,7 +103,7 @@ save_stash () {
 
        git update-ref -m "$stash_msg" $ref_stash $w_commit ||
                die "Cannot save the current status"
-       printf >&2 'Saved working directory and index state "%s"\n' "$stash_msg"
+       printf 'Saved working directory and index state "%s"\n' "$stash_msg"
 }
 
 have_stash () {
@@ -192,6 +196,28 @@ apply_stash () {
        fi
 }
 
+drop_stash () {
+       have_stash || die 'No stash entries to drop'
+
+       if test $# = 0
+       then
+               set x "$ref_stash@{0}"
+               shift
+       fi
+       # Verify supplied argument looks like a stash entry
+       s=$(git rev-parse --revs-only --no-flags "$@") &&
+       git rev-parse --verify "$s:"   > /dev/null 2>&1 &&
+       git rev-parse --verify "$s^1:" > /dev/null 2>&1 &&
+       git rev-parse --verify "$s^2:" > /dev/null 2>&1 ||
+               die "$*: not a valid stashed state"
+
+       git reflog delete --updateref --rewrite "$@" &&
+               echo "Dropped $* ($s)" || die "$*: Could not drop stash entry"
+
+       # clear_stash if we just dropped the last stash entry
+       git rev-parse --verify "$ref_stash@{0}" > /dev/null 2>&1 || clear_stash
+}
+
 # Main command set
 case "$1" in
 list)
@@ -216,7 +242,8 @@ apply)
        apply_stash "$@"
        ;;
 clear)
-       clear_stash
+       shift
+       clear_stash "$@"
        ;;
 create)
        if test $# -gt 0 && test "$1" = create
@@ -225,11 +252,23 @@ create)
        fi
        create_stash "$*" && echo "$w_commit"
        ;;
+drop)
+       shift
+       drop_stash "$@"
+       ;;
+pop)
+       shift
+       if apply_stash "$@"
+       then
+               test -z "$unstash_index" || shift
+               drop_stash "$@"
+       fi
+       ;;
 *)
        if test $# -eq 0
        then
                save_stash &&
-               echo >&2 '(To restore them type "git stash apply")' &&
+               echo '(To restore them type "git stash apply")' &&
                git-reset --hard
        else
                usage