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replace: use a GIT_NO_REPLACE_OBJECTS env variable 

This has the same effect as --no-replace-objects option; git ignores the
replace refs.  When --no-replace-objects option is passed to git, this
environment variable is set to "1" and exported to subprocesses in order
to propagate the same setting.

It is useful for example for scripts, as the git commands used in them can
now be aware that they must not read replace refs.

Tested-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Christian Couder 2009-11-18 07:50:58 +01:00 committed by Junio C Hamano
parent e36e6c00cd
commit 6476b38b1f
5 changed files with 24 additions and 0 deletions
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1
cache.h
View File

@ -369,6 +369,7 @@ static inline enum object_type object_type(unsigned int mode)
#define CONFIG_ENVIRONMENT "GIT_CONFIG"
#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
#define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
#define GITATTRIBUTES_FILE ".gitattributes"
#define INFOATTRIBUTES_FILE "info/attributes"
#define ATTRIBUTE_MACRO_PREFIX "[attr]"

1
connect.c
View File

@ -630,6 +630,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
GIT_WORK_TREE_ENVIRONMENT,
GRAFT_ENVIRONMENT,
INDEX_ENVIRONMENT,
NO_REPLACE_OBJECTS_ENVIRONMENT,
NULL
};
conn->env = env;

2
environment.c
View File

@ -83,6 +83,8 @@ static void setup_git_env(void)
git_graft_file = getenv(GRAFT_ENVIRONMENT);
if (!git_graft_file)
git_graft_file = git_pathdup("info/grafts");
if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
read_replace_refs = 0;
}
int is_bare_repository(void)

3
git.c
View File

@ -89,6 +89,9 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--no-replace-objects")) {
read_replace_refs = 0;
setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--git-dir")) {
if (*argc < 2) {
fprintf(stderr, "No directory given for --git-dir.\n" );

17
t/t6050-replace.sh
View File

@ -77,6 +77,11 @@ test_expect_success 'test --no-replace-objects option' '
git --no-replace-objects show $HASH2 | grep "A U Thor"
'
test_expect_success 'test GIT_NO_REPLACE_OBJECTS env variable' '
GIT_NO_REPLACE_OBJECTS=1 git cat-file commit $HASH2 | grep "author A U Thor" &&
GIT_NO_REPLACE_OBJECTS=1 git show $HASH2 | grep "A U Thor"
'
cat >tag.sig <<EOF
object $HASH2
type commit
@ -202,6 +207,18 @@ test_expect_success 'fetch branch with replacement' '
cd ..
'
test_expect_success 'bisect and replacements' '
git bisect start $HASH7 $HASH1 &&
test "$S" = "$(git rev-parse --verify HEAD)" &&
git bisect reset &&
GIT_NO_REPLACE_OBJECTS=1 git bisect start $HASH7 $HASH1 &&
test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
git bisect reset &&
git --no-replace-objects bisect start $HASH7 $HASH1 &&
test "$HASH4" = "$(git rev-parse --verify HEAD)" &&
git bisect reset
'
#
#
test_done