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Merge branch 'jc/signed-fast-export-is-experimental' 

Mark a new feature added during this cycle as experimental and fix
its default so that existing users of the fast-export command is
not broken.

* jc/signed-fast-export-is-experimental:
  fast-export: --signed-commits is experimental
maint
Junio C Hamano 2025-06-02 09:25:33 -07:00
parent 4f91e606fb 0b4c6baa70
commit bbe8a3723b
5 changed files with 16 additions and 30 deletions
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4
Documentation/RelNotes/2.50.0.adoc
View File

@ -102,7 +102,9 @@ Performance, Internal Implementation, Development Support etc.
* "git fsck" becomes more careful when checking the refs.

* "git fast-export | git fast-import" learns to deal with commit and
tag objects with embedded signatures a bit better.
tag objects with embedded signatures a bit better. This is highly
experimental and the format of the data stream may change in the
future without compatibility guarantees.

* The code paths to check whether a refname X is available (by seeing
if another ref X/Y exists, etc.) have been optimized.

12
Documentation/git-fast-export.adoc
View File

@ -46,14 +46,12 @@ resulting tag will have an invalid signature.

--signed-commits=(verbatim|warn-verbatim|warn-strip|strip|abort)::
Specify how to handle signed commits. Behaves exactly as
'--signed-tags', but for commits. Default is 'abort'.
'--signed-tags', but for commits. Default is 'strip', which
is the same as how earlier versions of this command without
this option behaved.
+
Earlier versions this command that did not have '--signed-commits'
behaved as if '--signed-commits=strip'. As an escape hatch for users
of tools that call 'git fast-export' but do not yet support
'--signed-commits', you may set the environment variable
'FAST_EXPORT_SIGNED_COMMITS_NOABORT=1' in order to change the default
from 'abort' to 'warn-strip'.
NOTE: This is highly experimental and the format of the data stream may
change in the future without compatibility guarantees.

--tag-of-filtered-object=(abort|drop|rewrite)::
Specify how to handle tags whose tagged object is filtered out.

3
Documentation/git-fast-import.adoc
View File

@ -523,6 +523,9 @@ that signs the commit data.
Here <alg> specifies which hashing algorithm is used for this
signature, either `sha1` or `sha256`.

NOTE: This is highly experimental and the format of the data stream may
change in the future without compatibility guarantees.

`encoding`
^^^^^^^^^^
The optional `encoding` command indicates the encoding of the commit

7
builtin/fast-export.c
View File

@ -39,7 +39,7 @@ enum sign_mode { SIGN_ABORT, SIGN_VERBATIM, SIGN_STRIP, SIGN_WARN_VERBATIM, SIGN

static int progress;
static enum sign_mode signed_tag_mode = SIGN_ABORT;
static enum sign_mode signed_commit_mode = SIGN_ABORT;
static enum sign_mode signed_commit_mode = SIGN_STRIP;
static enum tag_of_filtered_mode { TAG_FILTERING_ABORT, DROP, REWRITE } tag_of_filtered_mode = TAG_FILTERING_ABORT;
static enum reencode_mode { REENCODE_ABORT, REENCODE_YES, REENCODE_NO } reencode_mode = REENCODE_ABORT;
static int fake_missing_tagger;
@ -1269,7 +1269,6 @@ int cmd_fast_export(int argc,
const char *prefix,
struct repository *repo UNUSED)
{
const char *env_signed_commits_noabort;
struct rev_info revs;
struct commit *commit;
char *export_filename = NULL,
@ -1327,10 +1326,6 @@ int cmd_fast_export(int argc,
if (argc == 1)
usage_with_options (fast_export_usage, options);

env_signed_commits_noabort = getenv("FAST_EXPORT_SIGNED_COMMITS_NOABORT");
if (env_signed_commits_noabort && *env_signed_commits_noabort)
signed_commit_mode = SIGN_WARN_STRIP;

/* we handle encodings */
git_config(git_default_config, NULL);


20
t/t9350-fast-export.sh
View File

@ -299,22 +299,10 @@ test_expect_success GPG 'set up signed commit' '

'

test_expect_success GPG 'signed-commits default' '

sane_unset FAST_EXPORT_SIGNED_COMMITS_NOABORT &&
test_must_fail git fast-export --reencode=no commit-signing &&

FAST_EXPORT_SIGNED_COMMITS_NOABORT=1 git fast-export --reencode=no commit-signing >output 2>err &&
! grep ^gpgsig output &&
grep "^encoding ISO-8859-1" output &&
test -s err &&
sed "s/commit-signing/commit-strip-signing/" output | (
cd new &&
git fast-import &&
STRIPPED=$(git rev-parse --verify refs/heads/commit-strip-signing) &&
test $COMMIT_SIGNING != $STRIPPED
)

test_expect_success GPG 'signed-commits default is same as strip' '
git fast-export --reencode=no commit-signing >out1 2>err &&
git fast-export --reencode=no --signed-commits=strip commit-signing >out2 &&
test_cmp out1 out2
'

test_expect_success GPG 'signed-commits=abort' '