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-rw-r--r--Documentation/git-replace.txt24
-rw-r--r--cache.h1
-rw-r--r--connect.c1
-rw-r--r--environment.c2
-rw-r--r--git.c3
-rwxr-xr-xt/t6050-replace.sh17
6 files changed, 38 insertions, 10 deletions
diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt
index 8adc1ef55c..65a0da508a 100644
--- a/Documentation/git-replace.txt
+++ b/Documentation/git-replace.txt
@@ -17,31 +17,35 @@ DESCRIPTION
Adds a 'replace' reference in `.git/refs/replace/`
The name of the 'replace' reference is the SHA1 of the object that is
-replaced. The content of the replace reference is the SHA1 of the
+replaced. The content of the 'replace' reference is the SHA1 of the
replacement object.
-Unless `-f` is given, the replace reference must not yet exist in
+Unless `-f` is given, the 'replace' reference must not yet exist in
`.git/refs/replace/` directory.
-Replace references will be used by default by all git commands except
-those doing reachability traversal (prune, pack transfer and fsck).
+Replacement references will be used by default by all git commands
+except those doing reachability traversal (prune, pack transfer and
+fsck).
-It is possible to disable use of replacement refs for any command
-using the --no-replace-objects option just after "git".
+It is possible to disable use of replacement references for any
+command using the `--no-replace-objects` option just after 'git'.
-For example if commit "foo" has been replaced by commit "bar":
+For example if commit 'foo' has been replaced by commit 'bar':
------------------------------------------------
-$ git --no-replace-object cat-file commit foo
+$ git --no-replace-objects cat-file commit foo
------------------------------------------------
-show information about commit "foo", while:
+shows information about commit 'foo', while:
------------------------------------------------
$ git cat-file commit foo
------------------------------------------------
-show information about commit "bar".
+shows information about commit 'bar'.
+
+The 'GIT_NO_REPLACE_OBJECTS' environment variable can be set to
+achieve the same effect as the `--no-replace-objects` option.
OPTIONS
-------
diff --git a/cache.h b/cache.h
index 14c88e65c3..bf468e5235 100644
--- a/cache.h
+++ b/cache.h
@@ -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]"
diff --git a/connect.c b/connect.c
index 839a103705..db965c9982 100644
--- a/connect.c
+++ b/connect.c
@@ -609,6 +609,7 @@ 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;
diff --git a/environment.c b/environment.c
index 571ab56b7e..5171d9f9a4 100644
--- a/environment.c
+++ b/environment.c
@@ -84,6 +84,8 @@ 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)
diff --git a/git.c b/git.c
index 743ee57100..11544cdb40 100644
--- a/git.c
+++ b/git.c
@@ -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" );
diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
index d4818b430a..203ffdb17a 100755
--- a/t/t6050-replace.sh
+++ b/t/t6050-replace.sh
@@ -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