We create a file BISECT_TERMS in the repository .git to be read during a
bisection. The fonctions to be changed if we add new terms are quite
few.
In git-bisect.sh :
check_and_set_terms
bisect_voc
In bisect.c :
handle_bad_merge_base
Signed-off-by: Antoine Delaite <antoine.dela...@ensimag.grenoble-inp.fr>
Signed-off-by: Louis Stuber <stub...@ensimag.grenoble-inp.fr>
Signed-off-by: Valentin Duperray <valentin.duper...@ensimag.imag.fr>
Signed-off-by: Franck Jonas <franck.jo...@ensimag.imag.fr>
Signed-off-by: Lucien Kong <lucien.k...@ensimag.imag.fr>
Signed-off-by: Thomas Nguy <thomas.n...@ensimag.imag.fr>
Signed-off-by: Huynh Khoi Nguyen Nguyen
<huynh-khoi-nguyen.ngu...@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <matthieu....@grenoble-inp.fr>
---
bisect.c | 65 ++++++++++++++++++++++++++++++++++++++++++++---------------
git-bisect.sh | 58 ++++++++++++++++++++++++++++++++++++++++++++++++----
2 files changed, 103 insertions(+), 20 deletions(-)
diff --git a/bisect.c b/bisect.c
index de92953..3b7df85 100644
--- a/bisect.c
+++ b/bisect.c
@@ -21,6 +21,9 @@ static const char *argv_checkout[] = {"checkout", "-q", NULL,
"--", NULL};
static const char *argv_show_branch[] = {"show-branch", NULL, NULL};
static const char *argv_update_ref[] = {"update-ref", "--no-deref",
"BISECT_HEAD", NULL, NULL};
+static const char *name_bad;
+static const char *name_good;
+
/* Remember to update object flag allocation in object.h */
#define COUNTED (1u<<16)
@@ -403,7 +406,7 @@ struct commit_list *find_bisection(struct commit_list *list,
static int register_ref(const char *refname, const unsigned char *sha1,
int flags, void *cb_data)
{
- if (!strcmp(refname, "bad")) {
+ if (!strcmp(refname, name_bad)) {
current_bad_oid = xmalloc(sizeof(*current_bad_oid));
hashcpy(current_bad_oid->hash, sha1);
} else if (starts_with(refname, "good-")) {
@@ -634,7 +637,7 @@ static void exit_if_skipped_commits(struct commit_list
*tried,
return;
printf("There are only 'skip'ped commits left to test.\n"
- "The first bad commit could be any of:\n");
+ "The first %s commit could be any of:\n", name_bad);
print_commit_list(tried, "%s\n", "%s\n");
if (bad)
printf("%s\n", oid_to_hex(bad));
@@ -732,18 +735,19 @@ static void handle_bad_merge_base(void)
if (is_expected_rev(current_bad_oid)) {
char *bad_hex = oid_to_hex(current_bad_oid);
char *good_hex = join_sha1_array_hex(&good_revs, ' ');
-
- fprintf(stderr, "The merge base %s is bad.\n"
- "This means the bug has been fixed "
- "between %s and [%s].\n",
- bad_hex, bad_hex, good_hex);
-
+ if (!strcmp(name_bad, "bad")) {
+ fprintf(stderr, "The merge base %s is bad.\n"
+ "This means the bug has been fixed "
+ "between %s and [%s].\n",
+ bad_hex, bad_hex, good_hex);
+ }
exit(3);
}
- fprintf(stderr, "Some good revs are not ancestor of the bad rev.\n"
+ fprintf(stderr, "Some %s revs are not ancestor of the %s rev.\n"
"git bisect cannot work properly in this case.\n"
- "Maybe you mistook good and bad revs?\n");
+ "Maybe you mistook %s and %s revs?\n",
+ name_good, name_bad, name_good, name_bad);
exit(1);
}
@@ -755,10 +759,10 @@ static void handle_skipped_merge_base(const unsigned char
*mb)
warning("the merge base between %s and [%s] "
"must be skipped.\n"
- "So we cannot be sure the first bad commit is "
+ "So we cannot be sure the first %s commit is "
"between %s and %s.\n"
"We continue anyway.",
- bad_hex, good_hex, mb_hex, bad_hex);
+ bad_hex, good_hex, name_bad, mb_hex, bad_hex);
free(good_hex);
}
@@ -839,7 +843,7 @@ static void check_good_are_ancestors_of_bad(const char
*prefix, int no_checkout)
int fd;
if (!current_bad_oid)
- die("a bad revision is needed");
+ die("a %s revision is needed", name_bad);
/* Check if file BISECT_ANCESTORS_OK exists. */
if (!stat(filename, &st) && S_ISREG(st.st_mode))
@@ -890,6 +894,31 @@ static void show_diff_tree(const char *prefix, struct
commit *commit)
}
/*
+ * The terms used for this bisect session are stocked in
+ * BISECT_TERMS: it can be bad/good or new/old.
+ * We read them and stock them to adapt the messages
+ * accordingly. Default is bad/good.
+ */
+void read_bisect_terms(void)
+{
+ struct strbuf str = STRBUF_INIT;
+ const char *filename = git_path("BISECT_TERMS");
+ FILE *fp = fopen(filename, "r");
+
+ if (!fp) {
+ name_bad = "bad";
+ name_good = "good";
+ } else {
+ strbuf_getline(&str, fp, '\n');
+ name_bad = strbuf_detach(&str, NULL);
+ strbuf_getline(&str, fp, '\n');
+ name_good = strbuf_detach(&str, NULL);
+ }
+ strbuf_release(&str);
+ fclose(fp);
+}
+
+/*
* We use the convention that exiting with an exit code 10 means that
* the bisection process finished successfully.
* In this case the calling shell script should exit 0.
@@ -905,6 +934,7 @@ int bisect_next_all(const char *prefix, int no_checkout)
const unsigned char *bisect_rev;
char bisect_rev_hex[GIT_SHA1_HEXSZ + 1];
+ read_bisect_terms();
if (read_bisect_refs())
die("reading bisect refs failed");
@@ -926,8 +956,10 @@ int bisect_next_all(const char *prefix, int no_checkout)
*/
exit_if_skipped_commits(tried, NULL);
- printf("%s was both good and bad\n",
- oid_to_hex(current_bad_oid));
+ printf("%s was both %s and %s\n",
+ oid_to_hex(current_bad_oid),
+ name_good,
+ name_bad);
exit(1);
}
@@ -942,7 +974,8 @@ int bisect_next_all(const char *prefix, int no_checkout)
if (!hashcmp(bisect_rev, current_bad_oid->hash)) {
exit_if_skipped_commits(tried, current_bad_oid);
- printf("%s is the first bad commit\n", bisect_rev_hex);
+ printf("%s is the first %s commit\n", bisect_rev_hex,
+ name_bad);
show_diff_tree(prefix, revs.commits->item);
/* This means the bisection process succeeded. */
exit(10);
diff --git a/git-bisect.sh b/git-bisect.sh
index 1f16aaf..529bb43 100644
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -77,6 +77,7 @@ bisect_start() {
orig_args=$(git rev-parse --sq-quote "$@")
bad_seen=0
eval=''
+ start_bad_good=0
if test "z$(git rev-parse --is-bare-repository)" != zfalse
then
mode=--no-checkout
@@ -101,6 +102,9 @@ bisect_start() {
die "$(eval_gettext "'\$arg' does not appear to
be a valid revision")"
break
}
+
+ start_bad_good=1
+
case $bad_seen in
0) state='bad' ; bad_seen=1 ;;
*) state='good' ;;
@@ -172,6 +176,11 @@ bisect_start() {
} &&
git rev-parse --sq-quote "$@" >"$GIT_DIR/BISECT_NAMES" &&
eval "$eval true" &&
+ if test $start_bad_good -eq 1 -a ! -s "$GIT_DIR/BISECT_TERMS"
+ then
+ echo "$NAME_BAD" >"$GIT_DIR/BISECT_TERMS" &&
+ echo "$NAME_GOOD" >>"$GIT_DIR/BISECT_TERMS"
+ fi &&
echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
#
# Check if we can proceed to the next bisect state.
@@ -232,6 +241,7 @@ bisect_skip() {
bisect_state() {
bisect_autostart
state=$1
+ check_and_set_terms $state
case "$#,$state" in
0,*)
die "$(gettext "Please call 'bisect_state' with at least one
argument.")" ;;
@@ -294,12 +304,12 @@ bisect_next_check() {
if test -s "$GIT_DIR/BISECT_START"
then
- gettextln "You need to give me at least one good and
one bad revision.
-(You can use \"git bisect bad\" and \"git bisect good\" for that.)" >&2
+ gettextln "You need to give me at least one
$(bisect_voc bad) and one $(bisect_voc good) revision.
+(You can use \"git bisect $(bisect_voc bad)\" and \"git bisect $(bisect_voc
good)\" for that.)" >&2
else
gettextln "You need to start by \"git bisect start\".
-You then need to give me at least one good and one bad revision.
-(You can use \"git bisect bad\" and \"git bisect good\" for that.)" >&2
+You then need to give me at least one $(bisect_voc good) and one $(bisect_voc
bad) revision.
+(You can use \"git bisect $(bisect_voc bad)\" and \"git bisect $(bisect_voc
good)\" for that.)" >&2
fi
exit 1 ;;
esac
@@ -402,6 +412,7 @@ bisect_clean_state() {
rm -f "$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 &&
@@ -422,6 +433,8 @@ bisect_replay () {
rev="$command"
command="$bisect"
fi
+ get_terms
+ check_and_set_terms "$command"
case "$command" in
start)
cmd="bisect_start $rev"
@@ -499,11 +512,48 @@ bisect_log () {
cat "$GIT_DIR/BISECT_LOG"
}
+get_terms () {
+ if test -s "$GIT_DIR/BISECT_TERMS"
+ then
+ NAME_BAD="$(sed -n 1p "$GIT_DIR/BISECT_TERMS")"
+ NAME_GOOD="$(sed -n 2p "$GIT_DIR/BISECT_TERMS")"
+ fi
+}
+
+check_and_set_terms () {
+ cmd="$1"
+ case "$cmd" in
+ bad|good)
+ if test -s "$GIT_DIR/BISECT_TERMS" -a "$cmd" != "$NAME_BAD" -a
"$cmd" != "$NAME_GOOD"
+ then
+ die "$(eval_gettext "Invalid command : you're currently
in a \$NAME_BAD/\$NAME_GOOD bisect.")"
+ fi
+ case "$cmd" in
+ bad|good)
+ if test ! -s "$GIT_DIR/BISECT_TERMS"
+ then
+ echo "bad" >"$GIT_DIR/BISECT_TERMS" &&
+ echo "good" >>"$GIT_DIR/BISECT_TERMS"
+ fi
+ NAME_BAD="bad"
+ NAME_GOOD="good" ;;
+ esac ;;
+ esac
+}
+
+bisect_voc () {
+ case "$1" in
+ bad) echo "bad" ;;
+ good) echo "good" ;;
+ esac
+}
+
case "$#" in
0)
usage ;;
*)
cmd="$1"
+ get_terms
shift
case "$cmd" in
help)
--
2.4.1.414.ge7a9de3.dirty
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