Refactor merge strategies into separate includable file.

diff --git a/init-db.c b/init-db.c
index aabc09f4e1f714f5b4c1adba388fc47b41e16b0b..bd88291b0efd3eb9c46195d413db1aba820db2dd 100644 (file)
--- a/init-db.c
+++ b/init-db.c
@@ -21,7 +21,7 @@ static void safe_create_dir(const char *dir)
 
 static int copy_file(const char *dst, const char *src, int mode)
 {
-       int fdi, fdo;
+       int fdi, fdo, status;
 
        mode = (mode & 0111) ? 0777 : 0666;
        if ((fdi = open(src, O_RDONLY)) < 0)
@@ -30,30 +30,9 @@ static int copy_file(const char *dst, const char *src, int mode)
                close(fdi);
                return fdo;
        }
-       while (1) {
-               char buf[BUFSIZ];
-               ssize_t leni, leno, ofs;
-               leni = read(fdi, buf, sizeof(buf));
-               if (leni < 0) {
-               error_return:
-                       close(fdo);
-                       close(fdi);
-                       return -1;
-               }
-               if (!leni)
-                       break;
-               ofs = 0;
-               do {
-                       leno = write(fdo, buf+ofs, leni);
-                       if (leno < 0)
-                               goto error_return;
-                       leni -= leno;
-                       ofs += leno;
-               } while (0 < leni);
-       }
+       status = copy_fd(fdi, fdo);
        close(fdo);
-       close(fdi);
-       return 0;
+       return status;
 }
 
 static void copy_templates_1(char *path, int baselen,
@@ -196,6 +175,43 @@ static void create_default_files(const char *git_dir,
        }
        path[len] = 0;
        copy_templates(path, len, template_path);
+
+       /*
+        * Find out if we can trust the executable bit.
+        */
+       safe_create_dir(path);
+       strcpy(path + len, "config");
+       if (access(path, R_OK) < 0) {
+               static const char contents[] =
+                       "#\n"
+                       "# This is the config file\n"
+                       "#\n"
+                       "\n"
+                       "; core variables\n"
+                       "[core]\n"
+                       "       ; Don't trust file modes\n"
+                       "       filemode = false\n"
+                       "\n";
+               FILE *config = fopen(path, "w");
+               struct stat st;
+
+               if (!config)
+                       die("Can not write to %s?", path);
+
+               fwrite(contents, sizeof(contents)-1, 1, config);
+
+               fclose(config);
+
+               if (!lstat(path, &st)) {
+                       struct stat st2;
+                       if (!chmod(path, st.st_mode ^ S_IXUSR) &&
+                                       !lstat(path, &st2) &&
+                                       st.st_mode != st2.st_mode)
+                               unlink(path);
+                       else
+                               fprintf(stderr, "Ignoring file modes\n");
+               }
+       }
 }
 
 static const char init_db_usage[] =
@@ -244,10 +260,6 @@ int main(int argc, char **argv)
        memcpy(path, sha1_dir, len);
 
        safe_create_dir(sha1_dir);
-       for (i = 0; i < 256; i++) {
-               sprintf(path+len, "/%02x", i);
-               safe_create_dir(path);
-       }
        strcpy(path+len, "/pack");
        safe_create_dir(path);
        strcpy(path+len, "/info");