Merge 'fixes' branch

diff --git a/sha1_file.c b/sha1_file.c
index 776697755a02b98c04fa7831077bd0205a1feb80..66382027816e8ec3a97c40f6849c62454f2ad0f2 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -50,22 +50,22 @@ static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
        *git_graft_file;
 static void setup_git_env(void)
 {
-       git_dir = gitenv(GIT_DIR_ENVIRONMENT);
+       git_dir = getenv(GIT_DIR_ENVIRONMENT);
        if (!git_dir)
                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
-       git_object_dir = gitenv(DB_ENVIRONMENT);
+       git_object_dir = getenv(DB_ENVIRONMENT);
        if (!git_object_dir) {
                git_object_dir = xmalloc(strlen(git_dir) + 9);
                sprintf(git_object_dir, "%s/objects", git_dir);
        }
        git_refs_dir = xmalloc(strlen(git_dir) + 6);
        sprintf(git_refs_dir, "%s/refs", git_dir);
-       git_index_file = gitenv(INDEX_ENVIRONMENT);
+       git_index_file = getenv(INDEX_ENVIRONMENT);
        if (!git_index_file) {
                git_index_file = xmalloc(strlen(git_dir) + 7);
                sprintf(git_index_file, "%s/index", git_dir);
        }
-       git_graft_file = gitenv(GRAFT_ENVIRONMENT);
+       git_graft_file = getenv(GRAFT_ENVIRONMENT);
        if (!git_graft_file)
                git_graft_file = strdup(git_path("info/grafts"));
 }
@@ -240,10 +240,12 @@ static struct alternate_object_database **alt_odb_tail;
  * SHA1, an extra slash for the first level indirection, and the
  * terminating NUL.
  */
-static void link_alt_odb_entries(const char *alt, const char *ep, int sep)
+static void link_alt_odb_entries(const char *alt, const char *ep, int sep,
+                                const char *relative_base)
 {
        const char *cp, *last;
        struct alternate_object_database *ent;
+       int base_len = -1;
 
        last = alt;
        while (last < ep) {
@@ -261,12 +263,25 @@ static void link_alt_odb_entries(const char *alt, const char *ep, int sep)
                        int pfxlen = cp - last;
                        int entlen = pfxlen + 43;
 
+                       if (*last != '/' && relative_base) {
+                               /* Relative alt-odb */
+                               if (base_len < 0)
+                                       base_len = strlen(relative_base) + 1;
+                               entlen += base_len;
+                               pfxlen += base_len;
+                       }
                        ent = xmalloc(sizeof(*ent) + entlen);
                        *alt_odb_tail = ent;
                        alt_odb_tail = &(ent->next);
                        ent->next = NULL;
-
-                       memcpy(ent->base, last, pfxlen);
+                       if (*last != '/' && relative_base) {
+                               memcpy(ent->base, relative_base, base_len - 1);
+                               ent->base[base_len - 1] = '/';
+                               memcpy(ent->base + base_len,
+                                      last, cp - last);
+                       }
+                       else
+                               memcpy(ent->base, last, pfxlen);
                        ent->name = ent->base + pfxlen + 1;
                        ent->base[pfxlen] = ent->base[pfxlen + 3] = '/';
                        ent->base[entlen-1] = 0;
@@ -283,14 +298,17 @@ void prepare_alt_odb(void)
        char *map;
        int fd;
        struct stat st;
-       char *alt = gitenv(ALTERNATE_DB_ENVIRONMENT) ? : "";
+       char *alt;
+
+       alt = getenv(ALTERNATE_DB_ENVIRONMENT);
+       if (!alt) alt = "";
 
-       sprintf(path, "%s/info/alternates", get_object_directory());
        if (alt_odb_tail)
                return;
        alt_odb_tail = &alt_odb_list;
-       link_alt_odb_entries(alt, alt + strlen(alt), ':');
+       link_alt_odb_entries(alt, alt + strlen(alt), ':', NULL);
 
+       sprintf(path, "%s/info/alternates", get_object_directory());
        fd = open(path, O_RDONLY);
        if (fd < 0)
                return;
@@ -303,7 +321,8 @@ void prepare_alt_odb(void)
        if (map == MAP_FAILED)
                return;
 
-       link_alt_odb_entries(map, map + st.st_size, '\n');
+       link_alt_odb_entries(map, map + st.st_size, '\n',
+                            get_object_directory());
        munmap(map, st.st_size);
 }
 
@@ -484,7 +503,7 @@ struct packed_git *parse_pack_index(unsigned char *sha1)
        return parse_pack_index_file(sha1, path);
 }
 
-struct packed_git *parse_pack_index_file(unsigned char *sha1, char *idx_path)
+struct packed_git *parse_pack_index_file(const unsigned char *sha1, char *idx_path)
 {
        struct packed_git *p;
        unsigned long idx_size;