fast-import has support for both an --import-marks flag and an
--import-marks-if-exists flag; the latter of which will not die() if the
file does not exist. fast-export only had support for an --import-marks
flag; add an --import-marks-if-exists flag for consistency.
Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
builtin/fast-export.c | 23 +++++++++++++++++++----
t/t9350-fast-export.sh | 10 ++++------
2 files changed, 23 insertions(+), 10 deletions(-)
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 5822271c6b..575e47833b 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -1052,11 +1052,16 @@ static void export_marks(char *file)
error("Unable to write marks file %s.", file);
}
-static void import_marks(char *input_file)
+static void import_marks(char *input_file, int check_exists)
{
char line[512];
- FILE *f = xfopen(input_file, "r");
+ FILE *f;
+ struct stat sb;
+
+ if (check_exists && stat(input_file, &sb))
+ return;
+ f = xfopen(input_file, "r");
while (fgets(line, sizeof(line), f)) {
uint32_t mark;
char *line_end, *mark_end;
@@ -1120,7 +1125,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
struct rev_info revs;
struct object_array commits = OBJECT_ARRAY_INIT;
struct commit *commit;
- char *export_filename = NULL, *import_filename = NULL;
+ char *export_filename = NULL,
+ *import_filename = NULL,
+ *import_filename_if_exists = NULL;
uint32_t lastimportid;
struct string_list refspecs_list = STRING_LIST_INIT_NODUP;
struct string_list paths_of_changed_objects = STRING_LIST_INIT_DUP;
@@ -1140,6 +1147,10 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
N_("Dump marks to this file")),
OPT_STRING(0, "import-marks", &import_filename, N_("file"),
N_("Import marks from this file")),
+ OPT_STRING(0, "import-marks-if-exists",
+ &import_filename_if_exists,
+ N_("file"),
+ N_("Import marks from this file if it exists")),
OPT_BOOL(0, "fake-missing-tagger", &fake_missing_tagger,
N_("Fake a tagger when tags lack one")),
OPT_BOOL(0, "full-tree", &full_tree,
@@ -1187,8 +1198,12 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
if (use_done_feature)
printf("feature done\n");
+ if (import_filename && import_filename_if_exists)
+ die(_("Cannot pass both --import-marks and --import-marks-if-exists"));
if (import_filename)
- import_marks(import_filename);
+ import_marks(import_filename, 0);
+ else if (import_filename_if_exists)
+ import_marks(import_filename_if_exists, 1);
lastimportid = last_idnum;
if (import_filename && revs.prune_data.nr)
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index d32ff41859..ea84e2f173 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -580,17 +580,15 @@ test_expect_success 'fast-export quotes pathnames' '
'
test_expect_success 'test bidirectionality' '
- >marks-cur &&
- >marks-new &&
git init marks-test &&
- git fast-export --export-marks=marks-cur --import-marks=marks-cur --branches | \
- git --git-dir=marks-test/.git fast-import --export-marks=marks-new --import-marks=marks-new &&
+ git fast-export --export-marks=marks-cur --import-marks-if-exists=marks-cur --branches | \
+ git --git-dir=marks-test/.git fast-import --export-marks=marks-new --import-marks-if-exists=marks-new &&
(cd marks-test &&
git reset --hard &&
echo Wohlauf > file &&
git commit -a -m "back in time") &&
- git --git-dir=marks-test/.git fast-export --export-marks=marks-new --import-marks=marks-new --branches | \
- git fast-import --export-marks=marks-cur --import-marks=marks-cur
+ git --git-dir=marks-test/.git fast-export --export-marks=marks-new --import-marks-if-exists=marks-new --branches | \
+ git fast-import --export-marks=marks-cur --import-marks-if-exists=marks-cur
'
cat > expected << EOF
--
2.23.0.264.g3b9f7f2fc6
