This file contains the narrow prefix. With get_narrow_prefix() being
non-empty behavior of git may be totally different.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
Makefile | 2 ++
cache.h | 3 +++
environment.c | 2 ++
narrow-tree.c | 31 +++++++++++++++++++++++++++++++
narrow-tree.h | 1 +
5 files changed, 39 insertions(+), 0 deletions(-)
create mode 100644 narrow-tree.c
create mode 100644 narrow-tree.h
diff --git a/Makefile b/Makefile
index 1f11618..54c435e 100644
--- a/Makefile
+++ b/Makefile
@@ -525,6 +525,7 @@ LIB_H += sigchain.h
LIB_H += strbuf.h
LIB_H += string-list.h
LIB_H += submodule.h
+LIB_H += narrow-tree.h
LIB_H += tag.h
LIB_H += transport.h
LIB_H += tree.h
@@ -629,6 +630,7 @@ LIB_OBJS += sigchain.o
LIB_OBJS += strbuf.o
LIB_OBJS += string-list.o
LIB_OBJS += submodule.o
+LIB_OBJS += narrow-tree.o
LIB_OBJS += symlinks.o
LIB_OBJS += tag.o
LIB_OBJS += trace.o
diff --git a/cache.h b/cache.h
index 37ef9d8..ff401ec 100644
--- a/cache.h
+++ b/cache.h
@@ -1101,4 +1101,7 @@ int split_cmdline(char *cmdline, const char ***argv);
/* builtin/merge.c */
int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
+/* narrow-tree.c */
+extern const char *get_narrow_prefix();
+
#endif /* CACHE_H */
diff --git a/environment.c b/environment.c
index 83d38d3..41fcbd4 100644
--- a/environment.c
+++ b/environment.c
@@ -8,6 +8,7 @@
* are.
*/
#include "cache.h"
+#include "narrow-tree.h"
char git_default_email[MAX_GITNAME];
char git_default_name[MAX_GITNAME];
@@ -105,6 +106,7 @@ static void setup_git_env(void)
git_graft_file = git_pathdup("info/grafts");
if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
read_replace_refs = 0;
+ check_narrow_prefix();
}
int is_bare_repository(void)
diff --git a/narrow-tree.c b/narrow-tree.c
new file mode 100644
index 0000000..46e913d
--- /dev/null
+++ b/narrow-tree.c
@@ -0,0 +1,31 @@
+#include "cache.h"
+#include "narrow-tree.h"
+
+static const char *narrow_prefix;
+
+int check_narrow_prefix()
+{
+ int fd;
+ static char buf[PATH_MAX];
+ int ret;
+
+ fd = open(git_path("narrow"), O_RDONLY);
+ if (fd == -1)
+ return 0;
+
+ ret = read(fd, buf, PATH_MAX);
+ if (ret > 0) {
+ /* $GIT_DIR/narrow is not meant for manual editing, anyway.. */
+ while (ret && buf[ret-1] == '\n')
+ ret--;
+ buf[ret] = '\0';
+ narrow_prefix = buf;
+ }
+ close(fd);
+ return 0;
+}
+
+const char *get_narrow_prefix()
+{
+ return narrow_prefix;
+}
diff --git a/narrow-tree.h b/narrow-tree.h
new file mode 100644
index 0000000..aa8c94f
--- /dev/null
+++ b/narrow-tree.h
@@ -0,0 +1 @@
+extern int check_narrow_prefix();
--
1.7.1.rc1.69.g24c2f7
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