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authorJunio C Hamano <gitster@pobox.com>2015-05-11 14:23:39 -0700
committerJunio C Hamano <gitster@pobox.com>2015-05-11 14:23:39 -0700
commit68a2e6a2c80303144807c8c91a087427e3c8e727 (patch)
tree96f1e79d314e0250141fe7bc88995361ebd21c18 /environment.c
parent17c7f4d8e4e0e54148f77db4cf73e07aae484ae9 (diff)
parent562bc080934b1bd16099723e80cc82a0dc6356b7 (diff)
downloadgit-68a2e6a2c80303144807c8c91a087427e3c8e727.tar.gz
Merge branch 'nd/multiple-work-trees'
A replacement for contrib/workdir/git-new-workdir that does not rely on symbolic links and make sharing of objects and refs safer by making the borrowee and borrowers aware of each other. * nd/multiple-work-trees: (41 commits) prune --worktrees: fix expire vs worktree existence condition t1501: fix test with split index t2026: fix broken &&-chain t2026 needs procondition SANITY git-checkout.txt: a note about multiple checkout support for submodules checkout: add --ignore-other-wortrees checkout: pass whole struct to parse_branchname_arg instead of individual flags git-common-dir: make "modules/" per-working-directory directory checkout: do not fail if target is an empty directory t2025: add a test to make sure grafts is working from a linked checkout checkout: don't require a work tree when checking out into a new one git_path(): keep "info/sparse-checkout" per work-tree count-objects: report unused files in $GIT_DIR/worktrees/... gc: support prune --worktrees gc: factor out gc.pruneexpire parsing code gc: style change -- no SP before closing parenthesis checkout: clean up half-prepared directories in --to mode checkout: reject if the branch is already checked out elsewhere prune: strategies for linked checkouts checkout: support checking out into a new working directory ...
Diffstat (limited to 'environment.c')
-rw-r--r--environment.c34
1 files changed, 28 insertions, 6 deletions
diff --git a/environment.c b/environment.c
index a40044c3bf..61c685b8d9 100644
--- a/environment.c
+++ b/environment.c
@@ -92,8 +92,9 @@ static char *work_tree;
static const char *namespace;
static size_t namespace_len;
-static const char *git_dir;
+static const char *git_dir, *git_common_dir;
static char *git_object_dir, *git_index_file, *git_graft_file;
+int git_db_env, git_index_env, git_graft_env, git_common_dir_env;
/*
* Repository-local GIT_* environment variables; see cache.h for details.
@@ -111,6 +112,7 @@ const char * const local_repo_env[] = {
NO_REPLACE_OBJECTS_ENVIRONMENT,
GIT_PREFIX_ENVIRONMENT,
GIT_SHALLOW_FILE_ENVIRONMENT,
+ GIT_COMMON_DIR_ENVIRONMENT,
NULL
};
@@ -135,14 +137,23 @@ static char *expand_namespace(const char *raw_namespace)
return strbuf_detach(&buf, NULL);
}
-static char *git_path_from_env(const char *envvar, const char *path)
+static char *git_path_from_env(const char *envvar, const char *git_dir,
+ const char *path, int *fromenv)
{
const char *value = getenv(envvar);
- return value ? xstrdup(value) : git_pathdup("%s", path);
+ if (!value) {
+ char *buf = xmalloc(strlen(git_dir) + strlen(path) + 2);
+ sprintf(buf, "%s/%s", git_dir, path);
+ return buf;
+ }
+ if (fromenv)
+ *fromenv = 1;
+ return xstrdup(value);
}
static void setup_git_env(void)
{
+ struct strbuf sb = STRBUF_INIT;
const char *gitfile;
const char *shallow_file;
@@ -151,9 +162,15 @@ static void setup_git_env(void)
git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
gitfile = read_gitfile(git_dir);
git_dir = xstrdup(gitfile ? gitfile : git_dir);
- git_object_dir = git_path_from_env(DB_ENVIRONMENT, "objects");
- git_index_file = git_path_from_env(INDEX_ENVIRONMENT, "index");
- git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, "info/grafts");
+ if (get_common_dir(&sb, git_dir))
+ git_common_dir_env = 1;
+ git_common_dir = strbuf_detach(&sb, NULL);
+ git_object_dir = git_path_from_env(DB_ENVIRONMENT, git_common_dir,
+ "objects", &git_db_env);
+ git_index_file = git_path_from_env(INDEX_ENVIRONMENT, git_dir,
+ "index", &git_index_env);
+ git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, git_common_dir,
+ "info/grafts", &git_graft_env);
if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
check_replace_refs = 0;
namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
@@ -176,6 +193,11 @@ const char *get_git_dir(void)
return git_dir;
}
+const char *get_git_common_dir(void)
+{
+ return git_common_dir;
+}
+
const char *get_git_namespace(void)
{
if (!namespace)