Resetting with paths does not update HEAD and there is nothing else
that a commit should be needed for. Relax the argument parsing so only
a tree is required.
The sha1 is only passed to read_from_tree(), which already only
requires a tree.
The "rev" variable we pass to run_add_interactive() will resolve to a
tree. This is fine since interactive_reset only needs the parameter to
be a treeish and doesn't use it for display purposes.
Signed-off-by: Martin von Zweigbergk <martinv...@gmail.com>
---
builtin/reset.c | 48 +++++++++++++++++++++++++++---------------------
t/t7102-reset.sh | 8 ++++++++
2 files changed, 35 insertions(+), 21 deletions(-)
diff --git a/builtin/reset.c b/builtin/reset.c
index 520c1a5..b776867 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -178,9 +178,10 @@ static const char **parse_args(const char **argv, const
char *prefix, const char
/*
* Possible arguments are:
*
- * git reset [-opts] <rev> <paths>...
- * git reset [-opts] <rev> -- <paths>...
- * git reset [-opts] -- <paths>...
+ * git reset [-opts] [<rev>]
+ * git reset [-opts] <tree> [<paths>...]
+ * git reset [-opts] <tree> -- [<paths>...]
+ * git reset [-opts] -- [<paths>...]
* git reset [-opts] <paths>...
*
* At this point, argv points immediately after [-opts].
@@ -195,11 +196,13 @@ static const char **parse_args(const char **argv, const
char *prefix, const char
}
/*
* Otherwise, argv[0] could be either <rev> or <paths> and
- * has to be unambiguous.
+ * has to be unambiguous. If there is a single argument, it
+ * can not be a tree
*/
- else if (!get_sha1_committish(argv[0], unused)) {
+ else if ((!argv[1] && !get_sha1_committish(argv[0], unused)) ||
+ (argv[1] && !get_sha1_treeish(argv[0], unused))) {
/*
- * Ok, argv[0] looks like a rev; it should not
+ * Ok, argv[0] looks like a commit/tree; it should not
* be a filename.
*/
verify_non_filename(prefix, argv[0]);
@@ -241,7 +244,6 @@ int cmd_reset(int argc, const char **argv, const char
*prefix)
const char *rev;
unsigned char sha1[20];
const char **pathspec = NULL;
- struct commit *commit;
const struct option options[] = {
OPT__QUIET(&quiet, N_("be quiet, only report errors")),
OPT_SET_INT(0, "mixed", &reset_type,
@@ -263,19 +265,23 @@ int cmd_reset(int argc, const char **argv, const char
*prefix)
PARSE_OPT_KEEP_DASHDASH);
pathspec = parse_args(argv, prefix, &rev);
- if (get_sha1_committish(rev, sha1))
- die(_("Failed to resolve '%s' as a valid ref."), rev);
-
- /*
- * NOTE: As "git reset $treeish -- $path" should be usable on
- * any tree-ish, this is not strictly correct. We are not
- * moving the HEAD to any commit; we are merely resetting the
- * entries in the index to that of a treeish.
- */
- commit = lookup_commit_reference(sha1);
- if (!commit)
- die(_("Could not parse object '%s'."), rev);
- hashcpy(sha1, commit->object.sha1);
+ if (!pathspec) {
+ struct commit *commit;
+ if (get_sha1_committish(rev, sha1))
+ die(_("Failed to resolve '%s' as a valid revision."),
rev);
+ commit = lookup_commit_reference(sha1);
+ if (!commit)
+ die(_("Could not parse object '%s'."), rev);
+ hashcpy(sha1, commit->object.sha1);
+ } else {
+ struct tree *tree;
+ if (get_sha1_treeish(rev, sha1))
+ die(_("Failed to resolve '%s' as a valid tree."), rev);
+ tree = parse_tree_indirect(sha1);
+ if (!tree)
+ die(_("Could not parse object '%s'."), rev);
+ hashcpy(sha1, tree->object.sha1);
+ }
if (patch_mode) {
if (reset_type != NONE)
@@ -340,7 +346,7 @@ int cmd_reset(int argc, const char **argv, const char
*prefix)
update_ref_status = update_refs(rev, sha1);
if (reset_type == HARD && !update_ref_status && !quiet)
- print_new_head_line(commit);
+ print_new_head_line(lookup_commit_reference(sha1));
remove_branch_state();
}
diff --git a/t/t7102-reset.sh b/t/t7102-reset.sh
index 81b2570..1fa2a5f 100755
--- a/t/t7102-reset.sh
+++ b/t/t7102-reset.sh
@@ -497,4 +497,12 @@ test_expect_success 'disambiguation (4)' '
test ! -f secondfile
'
+test_expect_success 'reset with paths accepts tree' '
+ # for simpler tests, drop last commit containing added files
+ git reset --hard HEAD^ &&
+ git reset HEAD^^{tree} -- . &&
+ git diff --cached HEAD^ --exit-code &&
+ git diff HEAD --exit-code
+'
+
test_done
--
1.8.1.1.454.gce43f05
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