Allow a relative builtin template directory.

In order to make git relocatable (i.e. not have the prefix compiled-in)
the template directory must depend on the location where this git instance
is found, which is GIT_EXEC_DIR.

The exec path is prepended only if the compiled-in default template
directory is to be used and that is relative. Any relative directories
that are specified via environment variable or the --exec-dir switch are
taken as is.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-init-db.c b/builtin-init-db.c
index 763fa55e76ef5b7e2f244f11199b5925382dac92..e1393b8d1e74c03ff2b45ec93e268daa2e286fd8 100644 (file)
--- a/builtin-init-db.c
+++ b/builtin-init-db.c
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "builtin.h"
+#include "exec_cmd.h"
 
 #ifndef DEFAULT_GIT_TEMPLATE_DIR
 #define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
@@ -131,10 +132,19 @@ static void copy_templates(const char *git_dir, int len, const char *template_di
        int template_len;
        DIR *dir;
 
-       if (!template_dir) {
+       if (!template_dir)
                template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
-               if (!template_dir)
-                       template_dir = DEFAULT_GIT_TEMPLATE_DIR;
+       if (!template_dir) {
+               /*
+                * if the hard-coded template is relative, it is
+                * interpreted relative to the exec_dir
+                */
+               template_dir = DEFAULT_GIT_TEMPLATE_DIR;
+               if (!is_absolute_path(template_dir)) {
+                       const char *exec_path = git_exec_path();
+                       template_dir = prefix_path(exec_path, strlen(exec_path),
+                                                  template_dir);
+               }
        }
        strcpy(template_path, template_dir);
        template_len = strlen(template_path);