From: Johannes Schindelin <johannes.schindelin@gmx.de>
To: git@vger.kernel.org
Cc: Johannes Schindelin <johannes.schindelin@gmx.de>,
Junio C Hamano <gitster@pobox.com>,
Jakub Narebski <jnareb@gmail.com>,
Stefan Beller <sbeller@google.com>,
Eric Sunshine <sunshine@sunshineco.com>,
Christian Couder <christian.couder@gmail.com>,
Philip Oakley <philipoakley@iee.org>
Subject: [PATCH v5 00/11] Deprecate .git/info/grafts
Date: Wed, 25 Apr 2018 11:53:49 +0200 [thread overview]
Message-ID: <cover.1524650028.git.johannes.schindelin@gmx.de> (raw)
In-Reply-To: <cover.1524303776.git.johannes.schindelin@gmx.de>
It is fragile, as there is no way for the revision machinery to say "but
now I want to traverse the graph ignoring the graft file" e.g. when
pushing commits to a remote repository (which, as a consequence, can
miss commits).
And we already have a better solution with `git replace --graft <comit>
[<parent>...]`.
Changes since v4:
- Fixed resource leaks (missing free() and strbuf_release() calls when
returning an error).
- Avoided error_errno() mistakenly using close()'s errno.
- Actually close the handle to the graft file after converting it.
- Changed the description of Documentation/technical/shallow to not even
bother to describe how it might be construed to be similar to replace
refs.
Johannes Schindelin (11):
argv_array: offer to split a string by whitespace
commit: Let the callback of for_each_mergetag return on error
replace: avoid using die() to indicate a bug
replace: "libify" create_graft() and callees
replace: introduce --convert-graft-file
Add a test for `git replace --convert-graft-file`
Deprecate support for .git/info/grafts
filter-branch: stop suggesting to use grafts
technical/shallow: stop referring to grafts
technical/shallow: describe why shallow cannot use replace refs
Remove obsolete script to convert grafts to replace refs
Documentation/git-filter-branch.txt | 2 +-
Documentation/git-replace.txt | 11 +-
Documentation/technical/shallow.txt | 20 +-
advice.c | 2 +
advice.h | 1 +
argv-array.c | 20 ++
argv-array.h | 2 +
builtin/replace.c | 218 +++++++++++++++-------
commit.c | 18 +-
commit.h | 4 +-
contrib/convert-grafts-to-replace-refs.sh | 28 ---
log-tree.c | 13 +-
t/t6001-rev-list-graft.sh | 9 +
t/t6050-replace.sh | 20 ++
14 files changed, 253 insertions(+), 115 deletions(-)
delete mode 100755 contrib/convert-grafts-to-replace-refs.sh
base-commit: 1f1cddd558b54bb0ce19c8ace353fd07b758510d
Published-As: https://github.com/dscho/git/releases/tag/deprecate-grafts-v5
Fetch-It-Via: git fetch https://github.com/dscho/git deprecate-grafts-v5
Interdiff vs v4:
diff --git a/Documentation/technical/shallow.txt b/Documentation/technical/shallow.txt
index cb79181c2bb..01dedfe9ffe 100644
--- a/Documentation/technical/shallow.txt
+++ b/Documentation/technical/shallow.txt
@@ -8,18 +8,10 @@ repo, and therefore grafts are introduced pretending that
these commits have no parents.
*********************************************************
-The basic idea is to write the SHA-1s of shallow commits into
-$GIT_DIR/shallow, and handle its contents similar to replace
-refs (with the difference that shallow does not actually
-create those replace refs) and very much like the deprecated
-graft file (with the difference that shallow commits will
-always have their parents grafted away, not replaced by
-different parents).
-
-This information is stored in a special-purpose file because the
-user should not touch that file at all (even throughout
-development of the shallow clone, it was never manually
-edited!).
+$GIT_DIR/shallow lists commit object names and tells Git to
+pretend as if they are root commits (e.g. "git log" traversal
+stops after showing them; "git fsck" does not complain saying
+the commits listed on their "parent" lines do not exist).
Each line contains exactly one SHA-1. When read, a commit_graft
will be constructed, which has nr_parent < 0 to make it easier
diff --git a/builtin/replace.c b/builtin/replace.c
index 6b3e0301e90..acd30e3d824 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -175,8 +175,10 @@ static int replace_object_oid(const char *object_ref,
object_ref, type_name(obj_type),
replace_ref, type_name(repl_type));
- if (check_ref_valid(object, &prev, &ref, force))
+ if (check_ref_valid(object, &prev, &ref, force)) {
+ strbuf_release(&ref);
return -1;
+ }
transaction = ref_transaction_begin(&err);
if (!transaction ||
@@ -264,9 +266,10 @@ static int import_object(struct object_id *oid, enum object_type type,
}
if (strbuf_read(&result, cmd.out, 41) < 0) {
+ error_errno("unable to read from mktree");
close(fd);
close(cmd.out);
- return error_errno("unable to read from mktree");
+ return -1;
}
close(cmd.out);
@@ -285,8 +288,9 @@ static int import_object(struct object_id *oid, enum object_type type,
int flags = HASH_FORMAT_CHECK | HASH_WRITE_OBJECT;
if (fstat(fd, &st) < 0) {
+ error_errno("unable to fstat %s", filename);
close(fd);
- return error_errno("unable to fstat %s", filename);
+ return -1;
}
if (index_fd(oid, fd, &st, type, NULL, flags) < 0)
return error("unable to write object to database");
@@ -302,7 +306,7 @@ static int import_object(struct object_id *oid, enum object_type type,
static int edit_and_replace(const char *object_ref, int force, int raw)
{
- char *tmpfile = git_pathdup("REPLACE_EDITOBJ");
+ char *tmpfile;
enum object_type type;
struct object_id old_oid, new_oid, prev;
struct strbuf ref = STRBUF_INIT;
@@ -315,17 +319,20 @@ static int edit_and_replace(const char *object_ref, int force, int raw)
return error("unable to get object type for %s",
oid_to_hex(&old_oid));
- if (check_ref_valid(&old_oid, &prev, &ref, force))
+ if (check_ref_valid(&old_oid, &prev, &ref, force)) {
+ strbuf_release(&ref);
return -1;
+ }
strbuf_release(&ref);
- if (export_object(&old_oid, type, raw, tmpfile))
- return -1;
- if (launch_editor(tmpfile, NULL, NULL) < 0)
- return error("editing object file failed");
- if (import_object(&new_oid, type, raw, tmpfile))
+ tmpfile = git_pathdup("REPLACE_EDITOBJ");
+ if (export_object(&old_oid, type, raw, tmpfile) ||
+ (launch_editor(tmpfile, NULL, NULL) < 0 &&
+ error("editing object file failed")) ||
+ import_object(&new_oid, type, raw, tmpfile)) {
+ free(tmpfile);
return -1;
-
+ }
free(tmpfile);
if (!oidcmp(&old_oid, &new_oid))
@@ -351,11 +358,15 @@ static int replace_parents(struct strbuf *buf, int argc, const char **argv)
/* prepare new parents */
for (i = 0; i < argc; i++) {
struct object_id oid;
- if (get_oid(argv[i], &oid) < 0)
+ if (get_oid(argv[i], &oid) < 0) {
+ strbuf_release(&new_parents);
return error(_("Not a valid object name: '%s'"),
argv[i]);
- if (!lookup_commit_reference(&oid))
+ }
+ if (!lookup_commit_reference(&oid)) {
+ strbuf_release(&new_parents);
return error(_("could not parse %s"), argv[i]);
+ }
strbuf_addf(&new_parents, "parent %s\n", oid_to_hex(&oid));
}
@@ -432,20 +443,26 @@ static int create_graft(int argc, const char **argv, int force)
strbuf_add(&buf, buffer, size);
unuse_commit_buffer(commit, buffer);
- if (replace_parents(&buf, argc - 1, &argv[1]) < 0)
+ if (replace_parents(&buf, argc - 1, &argv[1]) < 0) {
+ strbuf_release(&buf);
return -1;
+ }
if (remove_signature(&buf)) {
warning(_("the original commit '%s' has a gpg signature."), old_ref);
warning(_("the signature will be removed in the replacement commit!"));
}
- if (check_mergetags(commit, argc, argv))
+ if (check_mergetags(commit, argc, argv)) {
+ strbuf_release(&buf);
return -1;
+ }
- if (write_object_file(buf.buf, buf.len, commit_type, &new_oid))
+ if (write_object_file(buf.buf, buf.len, commit_type, &new_oid)) {
+ strbuf_release(&buf);
return error(_("could not write replacement commit for: '%s'"),
old_ref);
+ }
strbuf_release(&buf);
@@ -474,9 +491,9 @@ static int convert_graft_file(int force)
strbuf_addf(&err, "\n\t%s", buf.buf);
argv_array_clear(&args);
}
+ fclose(fp);
strbuf_release(&buf);
- argv_array_clear(&args);
if (!err.len)
return unlink_or_warn(graft_file);
--
2.17.0.windows.1.33.gfcbb1fa0445
next prev parent reply other threads:[~2018-04-25 9:54 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-13 11:11 [PATCH] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-13 18:22 ` Stefan Beller
2018-04-13 22:35 ` Johannes Schindelin
2018-04-13 22:45 ` Stefan Beller
2018-04-19 8:15 ` Johannes Schindelin
2018-04-13 18:57 ` Eric Sunshine
2018-04-19 8:14 ` Johannes Schindelin
2018-04-19 8:17 ` [PATCH v2 0/7] Deprecate .git/info/grafts Johannes Schindelin
2018-04-19 8:17 ` [PATCH v2 1/7] replace: "libify" create_graft() Johannes Schindelin
2018-04-20 0:25 ` Junio C Hamano
2018-04-20 11:51 ` Jakub Narebski
2018-04-20 15:32 ` Johannes Schindelin
2018-04-19 8:17 ` [PATCH v2 2/7] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-19 10:09 ` Christian Couder
2018-04-20 13:57 ` Johannes Schindelin
2018-04-20 1:05 ` Junio C Hamano
2018-04-20 15:26 ` Johannes Schindelin
2018-04-19 8:18 ` [PATCH v2 3/7] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-20 1:21 ` Junio C Hamano
2018-04-20 15:31 ` Johannes Schindelin
2018-04-19 8:18 ` [PATCH v2 4/7] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-19 8:18 ` [PATCH v2 5/7] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-19 8:19 ` [PATCH v2 6/7] technical/shallow: describe the relationship with replace refs Johannes Schindelin
2018-04-19 8:21 ` [PATCH v2 7/7] technical/shallow: describe why shallow cannot use " Johannes Schindelin
2018-04-20 22:20 ` [PATCH v3 00/11] Deprecate .git/info/grafts Johannes Schindelin
2018-04-20 22:20 ` [PATCH v3 01/11] argv_array: offer to split a string by whitespace Johannes Schindelin
2018-04-20 23:29 ` Stefan Beller
2018-04-21 9:39 ` Johannes Schindelin
2018-04-20 22:21 ` [PATCH v3 02/11] commit: Let the callback of for_each_mergetag return on error Johannes Schindelin
2018-04-20 22:21 ` [PATCH v3 03/11] replace: avoid using die() to indicate a bug Johannes Schindelin
2018-04-20 22:21 ` [PATCH v3 04/11] replace: "libify" create_graft() and callees Johannes Schindelin
2018-04-20 22:22 ` [PATCH v3 05/11] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-20 22:23 ` [PATCH v3 06/11] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-21 6:20 ` SZEDER Gábor
2018-04-21 9:42 ` Johannes Schindelin
2018-04-20 22:24 ` [PATCH v3 07/11] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-20 22:25 ` [PATCH v3 08/11] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-20 22:26 ` [PATCH v3 09/11] technical/shallow: describe the relationship with replace refs Johannes Schindelin
2018-04-22 15:16 ` Philip Oakley
2018-04-24 19:10 ` Johannes Schindelin
2018-04-24 21:34 ` Philip Oakley
2018-04-25 0:40 ` Junio C Hamano
2018-04-25 7:17 ` Johannes Schindelin
2018-04-20 22:26 ` [PATCH v3 10/11] technical/shallow: describe why shallow cannot use " Johannes Schindelin
2018-04-20 22:27 ` [PATCH v3 11/11] Remove obsolete script to convert grafts to " Johannes Schindelin
2018-04-21 9:43 ` [PATCH v4 00/11] Deprecate .git/info/grafts Johannes Schindelin
2018-04-21 9:46 ` [PATCH v4 01/11] argv_array: offer to split a string by whitespace Johannes Schindelin
2018-04-24 1:15 ` Junio C Hamano
2018-04-24 2:38 ` Junio C Hamano
2018-04-21 9:46 ` [PATCH v4 02/11] commit: Let the callback of for_each_mergetag return on error Johannes Schindelin
2018-04-21 9:47 ` [PATCH v4 03/11] replace: avoid using die() to indicate a bug Johannes Schindelin
2018-04-21 9:47 ` [PATCH v4 04/11] replace: "libify" create_graft() and callees Johannes Schindelin
2018-04-23 19:08 ` Stefan Beller
2018-04-24 18:51 ` Johannes Schindelin
2018-04-24 19:03 ` Stefan Beller
2018-04-25 7:10 ` Johannes Schindelin
2018-04-21 9:48 ` [PATCH v4 05/11] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-22 3:30 ` Eric Sunshine
2018-04-24 19:04 ` Johannes Schindelin
2018-04-21 9:48 ` [PATCH v4 06/11] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-21 9:49 ` [PATCH v4 07/11] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-21 9:49 ` [PATCH v4 08/11] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-21 9:51 ` [PATCH v4 09/11] technical/shallow: describe the relationship with replace refs Johannes Schindelin
2018-04-21 9:56 ` [PATCH v4 10/11] technical/shallow: describe why shallow cannot use " Johannes Schindelin
2018-04-21 9:56 ` [PATCH v4 11/11] Remove obsolete script to convert grafts to " Johannes Schindelin
2018-04-23 19:24 ` [PATCH v4 00/11] Deprecate .git/info/grafts Stefan Beller
2018-04-25 9:53 ` Johannes Schindelin [this message]
2018-04-25 9:53 ` [PATCH v5 01/11] argv_array: offer to split a string by whitespace Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 02/11] commit: Let the callback of for_each_mergetag return on error Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 03/11] replace: avoid using die() to indicate a bug Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 04/11] replace: "libify" create_graft() and callees Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 05/11] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 06/11] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 07/11] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 08/11] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 09/11] technical/shallow: stop referring to grafts Johannes Schindelin
2018-04-25 12:25 ` Jakub Narębski
2018-04-26 9:19 ` Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 10/11] technical/shallow: describe why shallow cannot use replace refs Johannes Schindelin
2018-04-25 9:54 ` [PATCH v5 11/11] Remove obsolete script to convert grafts to " Johannes Schindelin
2018-04-26 4:10 ` [PATCH v5 00/11] Deprecate .git/info/grafts Junio C Hamano
2018-04-27 21:03 ` Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 " Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 01/11] argv_array: offer to split a string by whitespace Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 02/11] commit: Let the callback of for_each_mergetag return on error Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 03/11] replace: avoid using die() to indicate a bug Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 04/11] replace: "libify" create_graft() and callees Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 05/11] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 06/11] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-28 1:25 ` SZEDER Gábor
2018-04-28 13:07 ` Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 07/11] Deprecate support for .git/info/grafts Johannes Schindelin
2018-04-27 21:39 ` [PATCH v6 08/11] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-27 21:40 ` [PATCH v6 09/11] technical/shallow: stop referring to grafts Johannes Schindelin
2018-04-27 21:40 ` [PATCH v6 10/11] technical/shallow: describe why shallow cannot use replace refs Johannes Schindelin
2018-04-27 21:40 ` [PATCH v6 11/11] Remove obsolete script to convert grafts to " Johannes Schindelin
2018-04-28 9:04 ` Philip Oakley
2018-04-28 13:13 ` Johannes Schindelin
2018-04-28 15:00 ` Stefan Beller
2018-04-28 22:47 ` [Re-send PATCH v7 00/12] Deprecate .git/info/grafts Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 01/12] argv_array: offer to split a string by whitespace Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 02/12] commit: Let the callback of for_each_mergetag return on error Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 03/12] replace: avoid using die() to indicate a bug Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 04/12] replace: "libify" create_graft() and callees Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 05/12] replace: prepare create_graft() for converting graft files wholesale Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 06/12] replace: introduce --convert-graft-file Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 07/12] Add a test for `git replace --convert-graft-file` Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 08/12] Deprecate support for .git/info/grafts Johannes Schindelin
2018-11-27 20:12 ` [PATCH] advice: don't pointlessly suggest --convert-graft-file Ævar Arnfjörð Bjarmason
2018-11-28 6:34 ` Junio C Hamano
2018-11-28 9:03 ` Johannes Schindelin
2018-04-28 22:44 ` [PATCH v7 09/12] filter-branch: stop suggesting to use grafts Johannes Schindelin
2018-04-28 22:45 ` [PATCH v7 10/12] technical/shallow: stop referring to grafts Johannes Schindelin
2018-04-28 22:45 ` [PATCH v7 11/12] technical/shallow: describe why shallow cannot use replace refs Johannes Schindelin
2018-04-28 22:45 ` [PATCH v7 12/12] Remove obsolete script to convert grafts to " Johannes Schindelin
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