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-rw-r--r--cache.h1
-rw-r--r--path.c17
-rw-r--r--setup.c3
3 files changed, 20 insertions, 1 deletions
diff --git a/cache.h b/cache.h
index 81b7e17..56ac6e7 100644
--- a/cache.h
+++ b/cache.h
@@ -525,6 +525,7 @@ static inline int is_absolute_path(const char *path)
}
const char *make_absolute_path(const char *path);
const char *make_nonrelative_path(const char *path);
+const char *make_relative_path(const char *abs, const char *base);
/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
extern int sha1_object_info(const unsigned char *, unsigned long *);
diff --git a/path.c b/path.c
index 7a35a26..6e3df18 100644
--- a/path.c
+++ b/path.c
@@ -330,6 +330,23 @@ const char *make_nonrelative_path(const char *path)
/* We allow "recursive" symbolic links. Only within reason, though. */
#define MAXDEPTH 5
+const char *make_relative_path(const char *abs, const char *base)
+{
+ static char buf[PATH_MAX + 1];
+ int baselen;
+ if (!base)
+ return abs;
+ baselen = strlen(base);
+ if (prefixcmp(abs, base))
+ return abs;
+ if (abs[baselen] == '/')
+ baselen++;
+ else if (base[baselen - 1] != '/')
+ return abs;
+ strcpy(buf, abs + baselen);
+ return buf;
+}
+
const char *make_absolute_path(const char *path)
{
static char bufs[2][PATH_MAX + 1], *buf = bufs[0], *next_buf = bufs[1];
diff --git a/setup.c b/setup.c
index d630e37..3b111ea 100644
--- a/setup.c
+++ b/setup.c
@@ -292,9 +292,10 @@ void setup_work_tree(void)
work_tree = get_git_work_tree();
git_dir = get_git_dir();
if (!is_absolute_path(git_dir))
- set_git_dir(make_absolute_path(git_dir));
+ git_dir = make_absolute_path(git_dir);
if (!work_tree || chdir(work_tree))
die("This operation must be run in a work tree");
+ set_git_dir(make_relative_path(git_dir, work_tree));
initialized = 1;
}