зеркало из https://github.com/microsoft/git.git
Merge branch 'en/fast-imexport-nested-tags'
Updates to fast-import/export. * en/fast-imexport-nested-tags: fast-export: handle nested tags t9350: add tests for tags of things other than a commit fast-export: allow user to request tags be marked with --mark-tags fast-export: add support for --import-marks-if-exists fast-import: add support for new 'alias' command fast-import: allow tags to be identified by mark labels fast-import: fix handling of deleted tags fast-export: fix exporting a tag and nothing else
This commit is contained in:
Junio C Hamano
Коммит
16d9d7184b
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|
@ -75,11 +75,20 @@ produced incorrect results if you gave these options.
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Before processing any input, load the marks specified in
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<file>. The input file must exist, must be readable, and
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must use the same format as produced by --export-marks.
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--mark-tags::
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In addition to labelling blobs and commits with mark ids, also
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label tags. This is useful in conjunction with
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`--export-marks` and `--import-marks`, and is also useful (and
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necessary) for exporting of nested tags. It does not hurt
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other cases and would be the default, but many fast-import
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frontends are not prepared to accept tags with mark
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identifiers.
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+
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Any commits that have already been marked will not be exported again.
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If the backend uses a similar --import-marks file, this allows for
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incremental bidirectional exporting of the repository by keeping the
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marks the same across runs.
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Any commits (or tags) that have already been marked will not be
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exported again. If the backend uses a similar --import-marks file,
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this allows for incremental bidirectional exporting of the repository
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by keeping the marks the same across runs.
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--fake-missing-tagger::
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Some old repositories have tags without a tagger. The
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@ -337,6 +337,13 @@ and control the current import process. More detailed discussion
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`commit` command. This command is optional and is not
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needed to perform an import.
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`alias`::
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Record that a mark refers to a given object without first
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creating any new object. Using --import-marks and referring
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to missing marks will cause fast-import to fail, so aliases
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can provide a way to set otherwise pruned commits to a valid
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value (e.g. the nearest non-pruned ancestor).
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`checkpoint`::
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Forces fast-import to close the current packfile, generate its
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unique SHA-1 checksum and index, and start a new packfile.
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@ -774,6 +781,7 @@ lightweight (non-annotated) tags see the `reset` command below.
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....
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'tag' SP <name> LF
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mark?
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'from' SP <commit-ish> LF
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original-oid?
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'tagger' (SP <name>)? SP LT <email> GT SP <when> LF
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@ -913,6 +921,21 @@ a data chunk which does not have an LF as its last byte.
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+
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The `LF` after `<delim> LF` is optional (it used to be required).
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`alias`
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~~~~~~~
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Record that a mark refers to a given object without first creating any
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new object.
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....
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'alias' LF
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mark
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'to' SP <commit-ish> LF
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LF?
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....
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For a detailed description of `<commit-ish>` see above under `from`.
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`checkpoint`
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~~~~~~~~~~~~
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Forces fast-import to close the current packfile, start a new one, and to
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|
|
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@ -40,6 +40,7 @@ static int no_data;
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static int full_tree;
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static int reference_excluded_commits;
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static int show_original_ids;
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static int mark_tags;
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static struct string_list extra_refs = STRING_LIST_INIT_NODUP;
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static struct string_list tag_refs = STRING_LIST_INIT_NODUP;
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static struct refspec refspecs = REFSPEC_INIT_FETCH;
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@ -842,25 +843,40 @@ static void handle_tag(const char *name, struct tag *tag)
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free(buf);
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return;
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case REWRITE:
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if (tagged->type != OBJ_COMMIT) {
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die("tag %s tags unexported %s!",
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oid_to_hex(&tag->object.oid),
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type_name(tagged->type));
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if (tagged->type == OBJ_TAG && !mark_tags) {
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die(_("Error: Cannot export nested tags unless --mark-tags is specified."));
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} else if (tagged->type == OBJ_COMMIT) {
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p = rewrite_commit((struct commit *)tagged);
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if (!p) {
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printf("reset %s\nfrom %s\n\n",
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name, oid_to_hex(&null_oid));
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free(buf);
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return;
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}
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tagged_mark = get_object_mark(&p->object);
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} else {
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/* tagged->type is either OBJ_BLOB or OBJ_TAG */
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tagged_mark = get_object_mark(tagged);
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}
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p = rewrite_commit((struct commit *)tagged);
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if (!p) {
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printf("reset %s\nfrom %s\n\n",
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name, oid_to_hex(&null_oid));
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free(buf);
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return;
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}
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tagged_mark = get_object_mark(&p->object);
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}
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}
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if (tagged->type == OBJ_TAG) {
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printf("reset %s\nfrom %s\n\n",
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name, oid_to_hex(&null_oid));
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}
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if (starts_with(name, "refs/tags/"))
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name += 10;
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printf("tag %s\nfrom :%d\n", name, tagged_mark);
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printf("tag %s\n", name);
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if (mark_tags) {
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mark_next_object(&tag->object);
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printf("mark :%"PRIu32"\n", last_idnum);
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}
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if (tagged_mark)
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printf("from :%d\n", tagged_mark);
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else
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printf("from %s\n", oid_to_hex(&tagged->oid));
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if (show_original_ids)
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printf("original-oid %s\n", oid_to_hex(&tag->object.oid));
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printf("%.*s%sdata %d\n%.*s\n",
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@ -1047,11 +1063,16 @@ static void export_marks(char *file)
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error("Unable to write marks file %s.", file);
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}
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static void import_marks(char *input_file)
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static void import_marks(char *input_file, int check_exists)
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{
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char line[512];
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FILE *f = xfopen(input_file, "r");
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FILE *f;
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struct stat sb;
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if (check_exists && stat(input_file, &sb))
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return;
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f = xfopen(input_file, "r");
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while (fgets(line, sizeof(line), f)) {
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uint32_t mark;
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char *line_end, *mark_end;
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|
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@ -1115,7 +1136,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
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struct rev_info revs;
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struct object_array commits = OBJECT_ARRAY_INIT;
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struct commit *commit;
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char *export_filename = NULL, *import_filename = NULL;
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char *export_filename = NULL,
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*import_filename = NULL,
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*import_filename_if_exists = NULL;
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uint32_t lastimportid;
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struct string_list refspecs_list = STRING_LIST_INIT_NODUP;
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struct string_list paths_of_changed_objects = STRING_LIST_INIT_DUP;
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@ -1135,6 +1158,10 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
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N_("Dump marks to this file")),
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OPT_STRING(0, "import-marks", &import_filename, N_("file"),
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N_("Import marks from this file")),
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OPT_STRING(0, "import-marks-if-exists",
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&import_filename_if_exists,
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N_("file"),
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N_("Import marks from this file if it exists")),
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OPT_BOOL(0, "fake-missing-tagger", &fake_missing_tagger,
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N_("Fake a tagger when tags lack one")),
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OPT_BOOL(0, "full-tree", &full_tree,
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|
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@ -1149,6 +1176,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
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&reference_excluded_commits, N_("Reference parents which are not in fast-export stream by object id")),
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OPT_BOOL(0, "show-original-ids", &show_original_ids,
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N_("Show original object ids of blobs/commits")),
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OPT_BOOL(0, "mark-tags", &mark_tags,
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N_("Label tags with mark ids")),
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OPT_END()
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};
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|
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@ -1182,8 +1211,12 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
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if (use_done_feature)
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printf("feature done\n");
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if (import_filename && import_filename_if_exists)
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die(_("Cannot pass both --import-marks and --import-marks-if-exists"));
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if (import_filename)
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import_marks(import_filename);
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import_marks(import_filename, 0);
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else if (import_filename_if_exists)
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import_marks(import_filename_if_exists, 1);
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lastimportid = last_idnum;
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if (import_filename && revs.prune_data.nr)
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|
|
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@ -2489,18 +2489,14 @@ static void parse_from_existing(struct branch *b)
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}
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}
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static int parse_from(struct branch *b)
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static int parse_objectish(struct branch *b, const char *objectish)
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{
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const char *from;
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struct branch *s;
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struct object_id oid;
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if (!skip_prefix(command_buf.buf, "from ", &from))
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return 0;
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oidcpy(&oid, &b->branch_tree.versions[1].oid);
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s = lookup_branch(from);
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s = lookup_branch(objectish);
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if (b == s)
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die("Can't create a branch from itself: %s", b->name);
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else if (s) {
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@ -2508,8 +2504,8 @@ static int parse_from(struct branch *b)
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oidcpy(&b->oid, &s->oid);
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oidcpy(&b->branch_tree.versions[0].oid, t);
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oidcpy(&b->branch_tree.versions[1].oid, t);
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} else if (*from == ':') {
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uintmax_t idnum = parse_mark_ref_eol(from);
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} else if (*objectish == ':') {
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uintmax_t idnum = parse_mark_ref_eol(objectish);
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struct object_entry *oe = find_mark(idnum);
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if (oe->type != OBJ_COMMIT)
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die("Mark :%" PRIuMAX " not a commit", idnum);
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@ -2523,13 +2519,13 @@ static int parse_from(struct branch *b)
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} else
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parse_from_existing(b);
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}
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} else if (!get_oid(from, &b->oid)) {
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} else if (!get_oid(objectish, &b->oid)) {
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parse_from_existing(b);
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if (is_null_oid(&b->oid))
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b->delete = 1;
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}
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else
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die("Invalid ref name or SHA1 expression: %s", from);
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die("Invalid ref name or SHA1 expression: %s", objectish);
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if (b->branch_tree.tree && !oideq(&oid, &b->branch_tree.versions[1].oid)) {
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release_tree_content_recursive(b->branch_tree.tree);
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|
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@ -2540,6 +2536,26 @@ static int parse_from(struct branch *b)
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return 1;
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}
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static int parse_from(struct branch *b)
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{
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const char *from;
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if (!skip_prefix(command_buf.buf, "from ", &from))
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return 0;
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return parse_objectish(b, from);
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}
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static int parse_objectish_with_prefix(struct branch *b, const char *prefix)
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{
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const char *base;
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|
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if (!skip_prefix(command_buf.buf, prefix, &base))
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return 0;
|
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|
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return parse_objectish(b, base);
|
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}
|
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|
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static struct hash_list *parse_merge(unsigned int *count)
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{
|
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struct hash_list *list = NULL, **tail = &list, *n;
|
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|
|
@ -2714,6 +2730,7 @@ static void parse_new_tag(const char *arg)
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first_tag = t;
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last_tag = t;
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read_next_command();
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parse_mark();
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|
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/* from ... */
|
||||
if (!skip_prefix(command_buf.buf, "from ", &from))
|
||||
|
|
@ -2770,7 +2787,7 @@ static void parse_new_tag(const char *arg)
|
|||
strbuf_addbuf(&new_data, &msg);
|
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free(tagger);
|
||||
|
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if (store_object(OBJ_TAG, &new_data, NULL, &t->oid, 0))
|
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if (store_object(OBJ_TAG, &new_data, NULL, &t->oid, next_mark))
|
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t->pack_id = MAX_PACK_ID;
|
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else
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t->pack_id = pack_id;
|
||||
|
|
@ -2779,6 +2796,7 @@ static void parse_new_tag(const char *arg)
|
|||
static void parse_reset_branch(const char *arg)
|
||||
{
|
||||
struct branch *b;
|
||||
const char *tag_name;
|
||||
|
||||
b = lookup_branch(arg);
|
||||
if (b) {
|
||||
|
|
@ -2794,6 +2812,32 @@ static void parse_reset_branch(const char *arg)
|
|||
b = new_branch(arg);
|
||||
read_next_command();
|
||||
parse_from(b);
|
||||
if (b->delete && skip_prefix(b->name, "refs/tags/", &tag_name)) {
|
||||
/*
|
||||
* Elsewhere, we call dump_branches() before dump_tags(),
|
||||
* and dump_branches() will handle ref deletions first, so
|
||||
* in order to make sure the deletion actually takes effect,
|
||||
* we need to remove the tag from our list of tags to update.
|
||||
*
|
||||
* NEEDSWORK: replace list of tags with hashmap for faster
|
||||
* deletion?
|
||||
*/
|
||||
struct tag *t, *prev = NULL;
|
||||
for (t = first_tag; t; t = t->next_tag) {
|
||||
if (!strcmp(t->name, tag_name))
|
||||
break;
|
||||
prev = t;
|
||||
}
|
||||
if (t) {
|
||||
if (prev)
|
||||
prev->next_tag = t->next_tag;
|
||||
else
|
||||
first_tag = t->next_tag;
|
||||
if (!t->next_tag)
|
||||
last_tag = prev;
|
||||
/* There is no mem_pool_free(t) function to call. */
|
||||
}
|
||||
}
|
||||
if (command_buf.len > 0)
|
||||
unread_command_buf = 1;
|
||||
}
|
||||
|
|
@ -3060,6 +3104,28 @@ static void parse_progress(void)
|
|||
skip_optional_lf();
|
||||
}
|
||||
|
||||
static void parse_alias(void)
|
||||
{
|
||||
struct object_entry *e;
|
||||
struct branch b;
|
||||
|
||||
skip_optional_lf();
|
||||
read_next_command();
|
||||
|
||||
/* mark ... */
|
||||
parse_mark();
|
||||
if (!next_mark)
|
||||
die(_("Expected 'mark' command, got %s"), command_buf.buf);
|
||||
|
||||
/* to ... */
|
||||
memset(&b, 0, sizeof(b));
|
||||
if (!parse_objectish_with_prefix(&b, "to "))
|
||||
die(_("Expected 'to' command, got %s"), command_buf.buf);
|
||||
e = find_object(&b.oid);
|
||||
assert(e);
|
||||
insert_mark(next_mark, e);
|
||||
}
|
||||
|
||||
static char* make_fast_import_path(const char *path)
|
||||
{
|
||||
if (!relative_marks_paths || is_absolute_path(path))
|
||||
|
|
@ -3187,6 +3253,8 @@ static int parse_one_feature(const char *feature, int from_stream)
|
|||
option_import_marks(arg, from_stream, 1);
|
||||
} else if (skip_prefix(feature, "export-marks=", &arg)) {
|
||||
option_export_marks(arg);
|
||||
} else if (!strcmp(feature, "alias")) {
|
||||
; /* Don't die - this feature is supported */
|
||||
} else if (!strcmp(feature, "get-mark")) {
|
||||
; /* Don't die - this feature is supported */
|
||||
} else if (!strcmp(feature, "cat-blob")) {
|
||||
|
|
@ -3343,6 +3411,8 @@ int cmd_main(int argc, const char **argv)
|
|||
parse_checkpoint();
|
||||
else if (!strcmp("done", command_buf.buf))
|
||||
break;
|
||||
else if (!strcmp("alias", command_buf.buf))
|
||||
parse_alias();
|
||||
else if (starts_with(command_buf.buf, "progress "))
|
||||
parse_progress();
|
||||
else if (skip_prefix(command_buf.buf, "feature ", &v))
|
||||
|
|
|
|||
|
|
@ -85,6 +85,36 @@ test_expect_success 'A: create pack from stdin' '
|
|||
An annotated tag that annotates a blob.
|
||||
EOF
|
||||
|
||||
tag to-be-deleted
|
||||
from :3
|
||||
data <<EOF
|
||||
Another annotated tag that annotates a blob.
|
||||
EOF
|
||||
|
||||
reset refs/tags/to-be-deleted
|
||||
from 0000000000000000000000000000000000000000
|
||||
|
||||
tag nested
|
||||
mark :6
|
||||
from :4
|
||||
data <<EOF
|
||||
Tag of our lovely commit
|
||||
EOF
|
||||
|
||||
reset refs/tags/nested
|
||||
from 0000000000000000000000000000000000000000
|
||||
|
||||
tag nested
|
||||
mark :7
|
||||
from :6
|
||||
data <<EOF
|
||||
Tag of tag of our lovely commit
|
||||
EOF
|
||||
|
||||
alias
|
||||
mark :8
|
||||
to :5
|
||||
|
||||
INPUT_END
|
||||
git fast-import --export-marks=marks.out <input &&
|
||||
git whatchanged master
|
||||
|
|
@ -157,12 +187,19 @@ test_expect_success 'A: verify tag/series-A-blob' '
|
|||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'A: verify tag deletion is successful' '
|
||||
test_must_fail git rev-parse --verify refs/tags/to-be-deleted
|
||||
'
|
||||
|
||||
test_expect_success 'A: verify marks output' '
|
||||
cat >expect <<-EOF &&
|
||||
:2 $(git rev-parse --verify master:file2)
|
||||
:3 $(git rev-parse --verify master:file3)
|
||||
:4 $(git rev-parse --verify master:file4)
|
||||
:5 $(git rev-parse --verify master^0)
|
||||
:6 $(git cat-file tag nested | grep object | cut -d" " -f 2)
|
||||
:7 $(git rev-parse --verify nested)
|
||||
:8 $(git rev-parse --verify master^0)
|
||||
EOF
|
||||
test_cmp expect marks.out
|
||||
'
|
||||
|
|
|
|||
|
|
@ -53,6 +53,33 @@ test_expect_success 'fast-export | fast-import' '
|
|||
|
||||
'
|
||||
|
||||
test_expect_success 'fast-export ^muss^{commit} muss' '
|
||||
git fast-export --tag-of-filtered-object=rewrite ^muss^{commit} muss >actual &&
|
||||
cat >expected <<-EOF &&
|
||||
tag muss
|
||||
from $(git rev-parse --verify muss^{commit})
|
||||
$(git cat-file tag muss | grep tagger)
|
||||
data 9
|
||||
valentin
|
||||
|
||||
EOF
|
||||
test_cmp expected actual
|
||||
'
|
||||
|
||||
test_expect_success 'fast-export --mark-tags ^muss^{commit} muss' '
|
||||
git fast-export --mark-tags --tag-of-filtered-object=rewrite ^muss^{commit} muss >actual &&
|
||||
cat >expected <<-EOF &&
|
||||
tag muss
|
||||
mark :1
|
||||
from $(git rev-parse --verify muss^{commit})
|
||||
$(git cat-file tag muss | grep tagger)
|
||||
data 9
|
||||
valentin
|
||||
|
||||
EOF
|
||||
test_cmp expected actual
|
||||
'
|
||||
|
||||
test_expect_success 'fast-export master~2..master' '
|
||||
|
||||
git fast-export master~2..master >actual &&
|
||||
|
|
@ -513,10 +540,41 @@ test_expect_success 'tree_tag' '
|
|||
'
|
||||
|
||||
# NEEDSWORK: not just check return status, but validate the output
|
||||
# Note that these tests DO NOTHING other than print a warning that
|
||||
# they are ommitting the one tag we asked them to export (because the
|
||||
# tags resolve to a tree). They exist just to make sure we do not
|
||||
# abort but instead just warn.
|
||||
test_expect_success 'tree_tag-obj' 'git fast-export tree_tag-obj'
|
||||
test_expect_success 'tag-obj_tag' 'git fast-export tag-obj_tag'
|
||||
test_expect_success 'tag-obj_tag-obj' 'git fast-export tag-obj_tag-obj'
|
||||
|
||||
test_expect_success 'handling tags of blobs' '
|
||||
git tag -a -m "Tag of a blob" blobtag $(git rev-parse master:file) &&
|
||||
git fast-export blobtag >actual &&
|
||||
cat >expect <<-EOF &&
|
||||
blob
|
||||
mark :1
|
||||
data 9
|
||||
die Luft
|
||||
|
||||
tag blobtag
|
||||
from :1
|
||||
tagger $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
|
||||
data 14
|
||||
Tag of a blob
|
||||
|
||||
EOF
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'handling nested tags' '
|
||||
git tag -a -m "This is a nested tag" nested muss &&
|
||||
git fast-export --mark-tags nested >output &&
|
||||
grep "^from $ZERO_OID$" output &&
|
||||
grep "^tag nested$" output >tag_lines &&
|
||||
test_line_count = 2 tag_lines
|
||||
'
|
||||
|
||||
test_expect_success 'directory becomes symlink' '
|
||||
git init dirtosymlink &&
|
||||
git init result &&
|
||||
|
|
@ -567,17 +625,15 @@ 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
|
||||
|
|
|
|||
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