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fast-export: add --signed-tags=warn-strip mode

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This issues a warning while stripping signatures from signed tags, which
allows us to use it as default behaviour for remote helpers which cannot
specify how to handle signed tags.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
John Keeping 2013-04-14 11:57:06 +01:00 committed by Junio C Hamano
parent 85e7e81ccf
commit cd16c59bfa
3 changed files with 19 additions and 5 deletions
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10
Documentation/git-fast-export.txt
View file

@ -27,15 +27,17 @@ OPTIONS
Insert 'progress' statements every <n> objects, to be shown by
'git fast-import' during import.
--signed-tags=(verbatim|warn|strip|abort)::
--signed-tags=(verbatim|warn|warn-strip|strip|abort)::
Specify how to handle signed tags. Since any transformation
after the export can change the tag names (which can also happen
when excluding revisions) the signatures will not match.
+
When asking to 'abort' (which is the default), this program will die
when encountering a signed tag. With 'strip', the tags will be made
unsigned, with 'verbatim', they will be silently exported
and with 'warn', they will be exported, but you will see a warning.
when encountering a signed tag. With 'strip', the tags will silently
be made unsigned, with 'warn-strip' they will be made unsigned but a
warning will be displayed, with 'verbatim', they will be silently
exported and with 'warn', they will be exported, but you will see a
warning.
--tag-of-filtered-object=(abort|drop|rewrite)::
Specify how to handle tags whose tagged object is filtered out.

8
builtin/fast-export.c
View file

@ -24,7 +24,7 @@ static const char *fast_export_usage[] = {
};
static int progress;
static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT;
static enum { ABORT, VERBATIM, WARN, WARN_STRIP, STRIP } signed_tag_mode = ABORT;
static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ERROR;
static int fake_missing_tagger;
static int use_done_feature;
@ -40,6 +40,8 @@ static int parse_opt_signed_tag_mode(const struct option *opt,
signed_tag_mode = VERBATIM;
else if (!strcmp(arg, "warn"))
signed_tag_mode = WARN;
else if (!strcmp(arg, "warn-strip"))
signed_tag_mode = WARN_STRIP;
else if (!strcmp(arg, "strip"))
signed_tag_mode = STRIP;
else
@ -428,6 +430,10 @@ static void handle_tag(const char *name, struct tag *tag)
/* fallthru */
case VERBATIM:
break;
case WARN_STRIP:
warning ("Stripping signature from tag %s",
sha1_to_hex(tag->object.sha1));
/* fallthru */
case STRIP:
message_size = signature + 1 - message;
break;

6
t/t9350-fast-export.sh
View file

@ -146,6 +146,12 @@ test_expect_success 'signed-tags=strip' '
'
test_expect_success 'signed-tags=warn-strip' '
git fast-export --signed-tags=warn-strip sign-your-name >output 2>err &&
! grep PGP output &&
test -s err
'
test_expect_success 'setup submodule' '
git checkout -f master &&