Reimplement `bisect_clean_state` shell function in C and add a
`bisect-clean-state` subcommand to `git bisect--helper` to call it from
git-bisect.sh .
Using `--bisect-clean-state` subcommand is a measure to port shell
function to C so as to use the existing test suite. As more functions
are ported, this subcommand will be retired but its implementation will
be called by bisect_reset() and bisect_start().
Mentored-by: Lars Schneider <larsxschneider@xxxxxxxxx>
Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
Signed-off-by: Pranit Bauva <pranit.bauva@xxxxxxxxx>
---
bisect.c | 43 +++++++++++++++++++++++++++++++++++++++++++
bisect.h | 2 ++
builtin/bisect--helper.c | 14 +++++++++++++-
git-bisect.sh | 26 +++-----------------------
4 files changed, 61 insertions(+), 24 deletions(-)
diff --git a/bisect.c b/bisect.c
index 6f512c2..45d598d 100644
--- a/bisect.c
+++ b/bisect.c
@@ -430,6 +430,12 @@ static int read_bisect_refs(void)
static GIT_PATH_FUNC(git_path_bisect_names, "BISECT_NAMES")
static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
+static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK")
+static GIT_PATH_FUNC(git_path_bisect_run, "BISECT_RUN")
+static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START")
+static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG")
+static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
+static GIT_PATH_FUNC(git_path_head_name, "head-name")
static void read_bisect_paths(struct argv_array *array)
{
@@ -1040,3 +1046,40 @@ int estimate_bisect_steps(int all)
return (e < 3 * x) ? n : n - 1;
}
+
+static int mark_for_removal(const char *refname, const struct object_id *oid,
+ int flag, void *cb_data)
+{
+ struct string_list *refs = cb_data;
+ char *ref = xstrfmt("refs/bisect%s", refname);
+ string_list_append(refs, ref);
+ return 0;
+}
+
+int bisect_clean_state(void)
+{
+ int result = 0;
+
+ /* There may be some refs packed during bisection */
+ struct string_list refs_for_removal = STRING_LIST_INIT_NODUP;
+ for_each_ref_in("refs/bisect", mark_for_removal, (void *) &refs_for_removal);
+ string_list_append(&refs_for_removal, xstrdup("BISECT_HEAD"));
+ result = delete_refs(&refs_for_removal, REF_NODEREF);
+ refs_for_removal.strdup_strings = 1;
+ string_list_clear(&refs_for_removal, 0);
+ unlink_or_warn(git_path_bisect_expected_rev());
+ unlink_or_warn(git_path_bisect_ancestors_ok());
+ unlink_or_warn(git_path_bisect_log());
+ unlink_or_warn(git_path_bisect_names());
+ unlink_or_warn(git_path_bisect_run());
+ unlink_or_warn(git_path_bisect_terms());
+ /* Cleanup head-name if it got left by an old version of git-bisect */
+ unlink_or_warn(git_path_head_name());
+ /*
+ * Cleanup BISECT_START last to support the --no-checkout option
+ * introduced in the commit 4796e823a.
+ */
+ unlink_or_warn(git_path_bisect_start());
+
+ return result;
+}
diff --git a/bisect.h b/bisect.h
index acd12ef..0ae63d4 100644
--- a/bisect.h
+++ b/bisect.h
@@ -28,4 +28,6 @@ extern int estimate_bisect_steps(int all);
extern void read_bisect_terms(const char **bad, const char **good);
+extern int bisect_clean_state(void);
+
#endif
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index 65cf519..4254d61 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -5,10 +5,15 @@
#include "refs.h"
static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
+static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
+static GIT_PATH_FUNC(git_path_bisect_ancestors_ok, "BISECT_ANCESTORS_OK")
+static GIT_PATH_FUNC(git_path_bisect_log, "BISECT_LOG")
+static GIT_PATH_FUNC(git_path_bisect_start, "BISECT_START")
static const char * const git_bisect_helper_usage[] = {
N_("git bisect--helper --next-all [--no-checkout]"),
N_("git bisect--helper --write-terms <bad_term> <good_term>"),
+ N_("git bisect--helper --bisect-clean-state"),
NULL
};
@@ -83,7 +88,8 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
{
enum {
NEXT_ALL = 1,
- WRITE_TERMS
+ WRITE_TERMS,
+ BISECT_CLEAN_STATE
} cmdmode = 0;
int no_checkout = 0;
struct option options[] = {
@@ -91,6 +97,8 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
N_("perform 'git bisect next'"), NEXT_ALL),
OPT_CMDMODE(0, "write-terms", &cmdmode,
N_("write the terms to .git/BISECT_TERMS"), WRITE_TERMS),
+ OPT_CMDMODE(0, "bisect-clean-state", &cmdmode,
+ N_("cleanup the bisection state"), BISECT_CLEAN_STATE),
OPT_BOOL(0, "no-checkout", &no_checkout,
N_("update BISECT_HEAD instead of checking out the current commit")),
OPT_END()
@@ -109,6 +117,10 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
if (argc != 2)
die(_("--write-terms requires two arguments"));
return write_terms(argv[0], argv[1]);
+ case BISECT_CLEAN_STATE:
+ if (argc != 0)
+ die(_("--bisect-clean-state requires no arguments"));
+ return bisect_clean_state();
default:
die("BUG: unknown subcommand '%d'", cmdmode);
}
diff --git a/git-bisect.sh b/git-bisect.sh
index 9ef6cb8..f1202df 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -186,7 +186,7 @@ bisect_start() {
#
# Get rid of any old bisect state.
#
- bisect_clean_state || exit
+ git bisect--helper --bisect-clean-state || exit
#
# Change state.
@@ -195,7 +195,7 @@ bisect_start() {
# We have to trap this to be able to clean up using
# "bisect_clean_state".
#
- trap 'bisect_clean_state' 0
+ trap 'git bisect--helper --bisect-clean-state' 0
trap 'exit 255' 1 2 3 15
#
@@ -430,27 +430,7 @@ bisect_reset() {
die "$(eval_gettext "Could not check out original HEAD '\$branch'.
Try 'git bisect reset <commit>'.")"
fi
- bisect_clean_state
-}
-
-bisect_clean_state() {
- # There may be some refs packed during bisection.
- git for-each-ref --format='%(refname) %(objectname)' refs/bisect/\* |
- while read ref hash
- do
- git update-ref -d $ref $hash || exit
- done
- rm -f "$GIT_DIR/BISECT_EXPECTED_REV" &&
- rm -f "$GIT_DIR/BISECT_ANCESTORS_OK" &&
- rm -f "$GIT_DIR/BISECT_LOG" &&
- rm -f "$GIT_DIR/BISECT_NAMES" &&
- rm -f "$GIT_DIR/BISECT_RUN" &&
- rm -f "$GIT_DIR/BISECT_TERMS" &&
- # Cleanup head-name if it got left by an old version of git-bisect
- rm -f "$GIT_DIR/head-name" &&
- git update-ref -d --no-deref BISECT_HEAD &&
- # clean up BISECT_START last
- rm -f "$GIT_DIR/BISECT_START"
+ git bisect--helper --bisect-clean-state || exit
}
bisect_replay () {
--
https://github.com/git/git/pull/287