summaryrefslogtreecommitdiff
path: root/builtin/fast-export.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/fast-export.c')
-rw-r--r--builtin/fast-export.c147
1 files changed, 114 insertions, 33 deletions
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 9e283482ef..85868162ee 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -33,12 +33,14 @@ static const char *fast_export_usage[] = {
static int progress;
static enum { SIGNED_TAG_ABORT, VERBATIM, WARN, WARN_STRIP, STRIP } signed_tag_mode = SIGNED_TAG_ABORT;
static enum { TAG_FILTERING_ABORT, DROP, REWRITE } tag_of_filtered_mode = TAG_FILTERING_ABORT;
+static enum { REENCODE_ABORT, REENCODE_YES, REENCODE_NO } reencode_mode = REENCODE_ABORT;
static int fake_missing_tagger;
static int use_done_feature;
static int no_data;
static int full_tree;
static int reference_excluded_commits;
static int show_original_ids;
+static int mark_tags;
static struct string_list extra_refs = STRING_LIST_INIT_NODUP;
static struct string_list tag_refs = STRING_LIST_INIT_NODUP;
static struct refspec refspecs = REFSPEC_INIT_FETCH;
@@ -77,6 +79,31 @@ static int parse_opt_tag_of_filtered_mode(const struct option *opt,
return 0;
}
+static int parse_opt_reencode_mode(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset) {
+ reencode_mode = REENCODE_ABORT;
+ return 0;
+ }
+
+ switch (git_parse_maybe_bool(arg)) {
+ case 0:
+ reencode_mode = REENCODE_NO;
+ break;
+ case 1:
+ reencode_mode = REENCODE_YES;
+ break;
+ default:
+ if (!strcasecmp(arg, "abort"))
+ reencode_mode = REENCODE_ABORT;
+ else
+ return error("Unknown reencoding mode: %s", arg);
+ }
+
+ return 0;
+}
+
static struct decoration idnums;
static uint32_t last_idnum;
@@ -100,10 +127,15 @@ struct anonymized_entry {
};
static int anonymized_entry_cmp(const void *unused_cmp_data,
- const void *va, const void *vb,
+ const struct hashmap_entry *eptr,
+ const struct hashmap_entry *entry_or_key,
const void *unused_keydata)
{
- const struct anonymized_entry *a = va, *b = vb;
+ const struct anonymized_entry *a, *b;
+
+ a = container_of(eptr, const struct anonymized_entry, hash);
+ b = container_of(entry_or_key, const struct anonymized_entry, hash);
+
return a->orig_len != b->orig_len ||
memcmp(a->orig, b->orig, a->orig_len);
}
@@ -122,10 +154,10 @@ static const void *anonymize_mem(struct hashmap *map,
if (!map->cmpfn)
hashmap_init(map, anonymized_entry_cmp, NULL, 0);
- hashmap_entry_init(&key, memhash(orig, *len));
+ hashmap_entry_init(&key.hash, memhash(orig, *len));
key.orig = orig;
key.orig_len = *len;
- ret = hashmap_get(map, &key, NULL);
+ ret = hashmap_get_entry(map, &key, hash, NULL);
if (!ret) {
ret = xmalloc(sizeof(*ret));
@@ -134,7 +166,7 @@ static const void *anonymize_mem(struct hashmap *map,
ret->orig_len = *len;
ret->anon = generate(orig, len);
ret->anon_len = *len;
- hashmap_put(map, ret);
+ hashmap_put(map, &ret->hash);
}
*len = ret->anon_len;
@@ -249,7 +281,7 @@ static void export_blob(const struct object_id *oid)
if (is_null_oid(oid))
return;
- object = lookup_object(the_repository, oid->hash);
+ object = lookup_object(the_repository, oid);
if (object && object->flags & SHOWN)
return;
@@ -261,7 +293,8 @@ static void export_blob(const struct object_id *oid)
buf = read_object_file(oid, &type, &size);
if (!buf)
die("could not read blob %s", oid_to_hex(oid));
- if (check_object_signature(oid, buf, size, type_name(type)) < 0)
+ if (check_object_signature(the_repository, oid, buf, size,
+ type_name(type)) < 0)
die("oid mismatch in blob %s", oid_to_hex(oid));
object = parse_object_buffer(the_repository, oid, type,
size, buf, &eaten);
@@ -427,7 +460,7 @@ static void show_filemodify(struct diff_queue_struct *q,
&spec->oid));
else {
struct object *object = lookup_object(the_repository,
- spec->oid.hash);
+ &spec->oid);
printf("M %06o :%d ", spec->mode,
get_object_mark(object));
}
@@ -453,7 +486,7 @@ static const char *find_encoding(const char *begin, const char *end)
bol = memmem(begin, end ? end - begin : strlen(begin),
needle, strlen(needle));
if (!bol)
- return git_commit_encoding;
+ return NULL;
bol += strlen(needle);
eol = strchrnul(bol, '\n');
*eol = '\0';
@@ -633,18 +666,32 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
}
mark_next_object(&commit->object);
- if (anonymize)
+ if (anonymize) {
reencoded = anonymize_commit_message(message);
- else if (!is_encoding_utf8(encoding))
- reencoded = reencode_string(message, "UTF-8", encoding);
+ } else if (encoding) {
+ switch(reencode_mode) {
+ case REENCODE_YES:
+ reencoded = reencode_string(message, "UTF-8", encoding);
+ break;
+ case REENCODE_NO:
+ break;
+ case REENCODE_ABORT:
+ die("Encountered commit-specific encoding %s in commit "
+ "%s; use --reencode=[yes|no] to handle it",
+ encoding, oid_to_hex(&commit->object.oid));
+ }
+ }
if (!commit->parents)
printf("reset %s\n", refname);
printf("commit %s\nmark :%"PRIu32"\n", refname, last_idnum);
if (show_original_ids)
printf("original-oid %s\n", oid_to_hex(&commit->object.oid));
- printf("%.*s\n%.*s\ndata %u\n%s",
+ printf("%.*s\n%.*s\n",
(int)(author_end - author), author,
- (int)(committer_end - committer), committer,
+ (int)(committer_end - committer), committer);
+ if (!reencoded && encoding)
+ printf("encoding %s\n", encoding);
+ printf("data %u\n%s",
(unsigned)(reencoded
? strlen(reencoded) : message
? strlen(message) : 0),
@@ -802,25 +849,39 @@ static void handle_tag(const char *name, struct tag *tag)
free(buf);
return;
case REWRITE:
- if (tagged->type != OBJ_COMMIT) {
- die("tag %s tags unexported %s!",
- oid_to_hex(&tag->object.oid),
- type_name(tagged->type));
- }
- p = rewrite_commit((struct commit *)tagged);
- if (!p) {
- printf("reset %s\nfrom %s\n\n",
- name, oid_to_hex(&null_oid));
- free(buf);
- return;
+ if (tagged->type == OBJ_TAG && !mark_tags) {
+ die(_("Error: Cannot export nested tags unless --mark-tags is specified."));
+ } else if (tagged->type == OBJ_COMMIT) {
+ p = rewrite_commit((struct commit *)tagged);
+ if (!p) {
+ printf("reset %s\nfrom %s\n\n",
+ name, oid_to_hex(&null_oid));
+ free(buf);
+ return;
+ }
+ tagged_mark = get_object_mark(&p->object);
+ } else {
+ /* tagged->type is either OBJ_BLOB or OBJ_TAG */
+ tagged_mark = get_object_mark(tagged);
}
- tagged_mark = get_object_mark(&p->object);
}
}
- if (starts_with(name, "refs/tags/"))
- name += 10;
- printf("tag %s\nfrom :%d\n", name, tagged_mark);
+ if (tagged->type == OBJ_TAG) {
+ printf("reset %s\nfrom %s\n\n",
+ name, oid_to_hex(&null_oid));
+ }
+ skip_prefix(name, "refs/tags/", &name);
+ printf("tag %s\n", name);
+ if (mark_tags) {
+ mark_next_object(&tag->object);
+ printf("mark :%"PRIu32"\n", last_idnum);
+ }
+ if (tagged_mark)
+ printf("from :%d\n", tagged_mark);
+ else
+ printf("from %s\n", oid_to_hex(&tagged->oid));
+
if (show_original_ids)
printf("original-oid %s\n", oid_to_hex(&tag->object.oid));
printf("%.*s%sdata %d\n%.*s\n",
@@ -1007,11 +1068,16 @@ 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;
@@ -1075,7 +1141,9 @@ 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;
@@ -1088,10 +1156,17 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, N_("mode"),
N_("select handling of tags that tag filtered objects"),
parse_opt_tag_of_filtered_mode),
+ OPT_CALLBACK(0, "reencode", &reencode_mode, N_("mode"),
+ N_("select handling of commit messages in an alternate encoding"),
+ parse_opt_reencode_mode),
OPT_STRING(0, "export-marks", &export_filename, N_("file"),
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,
@@ -1106,6 +1181,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
&reference_excluded_commits, N_("Reference parents which are not in fast-export stream by object id")),
OPT_BOOL(0, "show-original-ids", &show_original_ids,
N_("Show original object ids of blobs/commits")),
+ OPT_BOOL(0, "mark-tags", &mark_tags,
+ N_("Label tags with mark ids")),
OPT_END()
};
@@ -1139,8 +1216,12 @@ 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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 22:48:34 +0000