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authorMichael Rappazzo <rappazzo@gmail.com>2015-10-02 11:55:31 (GMT)
committerJunio C Hamano <gitster@pobox.com>2015-10-02 20:07:38 (GMT)
commitac6c561b598ae74d8e752e22607194536000e4db (patch)
tree691b1b7c6835177276ffca71cc59263f4c35c133
parent8d530c4d64ffcc853889f7b385f554d53db375ed (diff)
downloadgit-ac6c561b598ae74d8e752e22607194536000e4db.zip
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worktree: add top-level worktree.c
worktree.c contains functions to work with and get information from worktrees. This introduction moves functions related to worktrees from branch.c into worktree.c Signed-off-by: Michael Rappazzo <rappazzo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Makefile1
-rw-r--r--branch.c79
-rw-r--r--branch.h8
-rw-r--r--builtin/notes.c2
-rw-r--r--worktree.c82
-rw-r--r--worktree.h12
6 files changed, 97 insertions, 87 deletions
diff --git a/Makefile b/Makefile
index 8d5df7e..f4ee2d2 100644
--- a/Makefile
+++ b/Makefile
@@ -807,6 +807,7 @@ LIB_OBJS += version.o
LIB_OBJS += versioncmp.o
LIB_OBJS += walker.o
LIB_OBJS += wildmatch.o
+LIB_OBJS += worktree.o
LIB_OBJS += wrapper.o
LIB_OBJS += write_or_die.o
LIB_OBJS += ws.o
diff --git a/branch.c b/branch.c
index d013374..77d7f2a 100644
--- a/branch.c
+++ b/branch.c
@@ -4,6 +4,7 @@
#include "refs.h"
#include "remote.h"
#include "commit.h"
+#include "worktree.h"
struct tracking {
struct refspec spec;
@@ -311,84 +312,6 @@ void remove_branch_state(void)
unlink(git_path_squash_msg());
}
-static char *find_linked_symref(const char *symref, const char *branch,
- const char *id)
-{
- struct strbuf sb = STRBUF_INIT;
- struct strbuf path = STRBUF_INIT;
- struct strbuf gitdir = STRBUF_INIT;
- char *existing = NULL;
-
- /*
- * $GIT_COMMON_DIR/$symref (e.g. HEAD) is practically outside
- * $GIT_DIR so resolve_ref_unsafe() won't work (it uses
- * git_path). Parse the ref ourselves.
- */
- if (id)
- strbuf_addf(&path, "%s/worktrees/%s/%s", get_git_common_dir(), id, symref);
- else
- strbuf_addf(&path, "%s/%s", get_git_common_dir(), symref);
-
- if (!strbuf_readlink(&sb, path.buf, 0)) {
- if (!starts_with(sb.buf, "refs/") ||
- check_refname_format(sb.buf, 0))
- goto done;
- } else if (strbuf_read_file(&sb, path.buf, 0) >= 0 &&
- starts_with(sb.buf, "ref:")) {
- strbuf_remove(&sb, 0, strlen("ref:"));
- strbuf_trim(&sb);
- } else
- goto done;
- if (strcmp(sb.buf, branch))
- goto done;
- if (id) {
- strbuf_reset(&path);
- strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
- if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
- goto done;
- strbuf_rtrim(&gitdir);
- } else
- strbuf_addstr(&gitdir, get_git_common_dir());
- strbuf_strip_suffix(&gitdir, ".git");
-
- existing = strbuf_detach(&gitdir, NULL);
-done:
- strbuf_release(&path);
- strbuf_release(&sb);
- strbuf_release(&gitdir);
-
- return existing;
-}
-
-char *find_shared_symref(const char *symref, const char *target)
-{
- struct strbuf path = STRBUF_INIT;
- DIR *dir;
- struct dirent *d;
- char *existing;
-
- if ((existing = find_linked_symref(symref, target, NULL)))
- return existing;
-
- strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
- dir = opendir(path.buf);
- strbuf_release(&path);
- if (!dir)
- return NULL;
-
- while ((d = readdir(dir)) != NULL) {
- if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
- continue;
- existing = find_linked_symref(symref, target, d->d_name);
- if (existing)
- goto done;
- }
-done:
- closedir(dir);
-
- return existing;
-}
-
void die_if_checked_out(const char *branch)
{
char *existing;
diff --git a/branch.h b/branch.h
index d3446ed..58aa45f 100644
--- a/branch.h
+++ b/branch.h
@@ -59,12 +59,4 @@ extern int read_branch_desc(struct strbuf *, const char *branch_name);
*/
extern void die_if_checked_out(const char *branch);
-/*
- * Check if a per-worktree symref points to a ref in the main worktree
- * or any linked worktree, and return the path to the exising worktree
- * if it is. Returns NULL if there is no existing ref. The caller is
- * responsible for freeing the returned path.
- */
-extern char *find_shared_symref(const char *symref, const char *target);
-
#endif
diff --git a/builtin/notes.c b/builtin/notes.c
index 3608c64..13c0af9 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -19,7 +19,7 @@
#include "string-list.h"
#include "notes-merge.h"
#include "notes-utils.h"
-#include "branch.h"
+#include "worktree.h"
static const char * const git_notes_usage[] = {
N_("git notes [--ref <notes-ref>] [list [<object>]]"),
diff --git a/worktree.c b/worktree.c
new file mode 100644
index 0000000..10e1496
--- /dev/null
+++ b/worktree.c
@@ -0,0 +1,82 @@
+#include "cache.h"
+#include "refs.h"
+#include "strbuf.h"
+#include "worktree.h"
+
+static char *find_linked_symref(const char *symref, const char *branch,
+ const char *id)
+{
+ struct strbuf sb = STRBUF_INIT;
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf gitdir = STRBUF_INIT;
+ char *existing = NULL;
+
+ /*
+ * $GIT_COMMON_DIR/$symref (e.g. HEAD) is practically outside
+ * $GIT_DIR so resolve_ref_unsafe() won't work (it uses
+ * git_path). Parse the ref ourselves.
+ */
+ if (id)
+ strbuf_addf(&path, "%s/worktrees/%s/%s", get_git_common_dir(), id, symref);
+ else
+ strbuf_addf(&path, "%s/%s", get_git_common_dir(), symref);
+
+ if (!strbuf_readlink(&sb, path.buf, 0)) {
+ if (!starts_with(sb.buf, "refs/") ||
+ check_refname_format(sb.buf, 0))
+ goto done;
+ } else if (strbuf_read_file(&sb, path.buf, 0) >= 0 &&
+ starts_with(sb.buf, "ref:")) {
+ strbuf_remove(&sb, 0, strlen("ref:"));
+ strbuf_trim(&sb);
+ } else
+ goto done;
+ if (strcmp(sb.buf, branch))
+ goto done;
+ if (id) {
+ strbuf_reset(&path);
+ strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
+ if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
+ goto done;
+ strbuf_rtrim(&gitdir);
+ } else
+ strbuf_addstr(&gitdir, get_git_common_dir());
+ strbuf_strip_suffix(&gitdir, ".git");
+
+ existing = strbuf_detach(&gitdir, NULL);
+done:
+ strbuf_release(&path);
+ strbuf_release(&sb);
+ strbuf_release(&gitdir);
+
+ return existing;
+}
+
+char *find_shared_symref(const char *symref, const char *target)
+{
+ struct strbuf path = STRBUF_INIT;
+ DIR *dir;
+ struct dirent *d;
+ char *existing;
+
+ if ((existing = find_linked_symref(symref, target, NULL)))
+ return existing;
+
+ strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
+ dir = opendir(path.buf);
+ strbuf_release(&path);
+ if (!dir)
+ return NULL;
+
+ while ((d = readdir(dir)) != NULL) {
+ if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+ continue;
+ existing = find_linked_symref(symref, target, d->d_name);
+ if (existing)
+ goto done;
+ }
+done:
+ closedir(dir);
+
+ return existing;
+}
diff --git a/worktree.h b/worktree.h
new file mode 100644
index 0000000..71b1409
--- /dev/null
+++ b/worktree.h
@@ -0,0 +1,12 @@
+#ifndef WORKTREE_H
+#define WORKTREE_H
+
+/*
+ * Check if a per-worktree symref points to a ref in the main worktree
+ * or any linked worktree, and return the path to the exising worktree
+ * if it is. Returns NULL if there is no existing ref. The caller is
+ * responsible for freeing the returned path.
+ */
+extern char *find_shared_symref(const char *symref, const char *target);
+
+#endif