Make fetch-pack a builtin with an internal API

diff --git a/builtin-update-index.c b/builtin-update-index.c
index c4eaa94998e5459158cd942dd9f13bae9924c1eb..55fb679d68f141253f5d0ba5c73033d267e2a271 100644 (file)
--- a/builtin-update-index.c
+++ b/builtin-update-index.c
@@ -86,9 +86,15 @@ static int process_lstat_error(const char *path, int err)
 
 static int add_one_path(struct cache_entry *old, const char *path, int len, struct stat *st)
 {
-       int option, size = cache_entry_size(len);
-       struct cache_entry *ce = xcalloc(1, size);
+       int option, size;
+       struct cache_entry *ce;
+
+       /* Was the old index entry already up-to-date? */
+       if (old && !ce_stage(old) && !ce_match_stat(old, st, 0))
+               return 0;
 
+       size = cache_entry_size(len);
+       ce = xcalloc(1, size);
        memcpy(ce->name, path, len);
        ce->ce_flags = htons(len);
        fill_stat_cache_info(ce, st);
@@ -134,7 +140,7 @@ static int process_directory(const char *path, int len, struct stat *st)
        /* Exact match: file or existing gitlink */
        if (pos >= 0) {
                struct cache_entry *ce = active_cache[pos];
-               if (S_ISDIRLNK(ntohl(ce->ce_mode))) {
+               if (S_ISGITLINK(ntohl(ce->ce_mode))) {
 
                        /* Do nothing to the index if there is no HEAD! */
                        if (resolve_gitlink_ref(path, "HEAD", sha1) < 0)
@@ -178,7 +184,7 @@ static int process_file(const char *path, int len, struct stat *st)
        int pos = cache_name_pos(path, len);
        struct cache_entry *ce = pos < 0 ? NULL : active_cache[pos];
 
-       if (ce && S_ISDIRLNK(ntohl(ce->ce_mode)))
+       if (ce && S_ISGITLINK(ntohl(ce->ce_mode)))
                return error("%s is already a gitlink, not replacing", path);
 
        return add_one_path(ce, path, len, st);
@@ -189,11 +195,6 @@ static int process_path(const char *path)
        int len;
        struct stat st;
 
-       /* We probably want to do this in remove_file_from_cache() and
-        * add_cache_entry() instead...
-        */
-       cache_tree_invalidate_path(active_cache_tree, path);
-
        /*
         * First things first: get the stat information, to decide
         * what to do about the pathname!
@@ -233,7 +234,6 @@ static int add_cacheinfo(unsigned int mode, const unsigned char *sha1,
                return error("%s: cannot add to the index - missing --add option?",
                             path);
        report("add '%s'", path);
-       cache_tree_invalidate_path(active_cache_tree, path);
        return 0;
 }
 
@@ -278,7 +278,6 @@ static void update_one(const char *path, const char *prefix, int prefix_length)
                        die("Unable to mark file %s", path);
                goto free_return;
        }
-       cache_tree_invalidate_path(active_cache_tree, path);
 
        if (force_remove) {
                if (remove_file_from_cache(p))
@@ -303,6 +302,7 @@ static void read_index_info(int line_termination)
                char *path_name;
                unsigned char sha1[20];
                unsigned int mode;
+               unsigned long ul;
                int stage;
 
                /* This reads lines formatted in one of three formats:
@@ -325,9 +325,12 @@ static void read_index_info(int line_termination)
                if (buf.eof)
                        break;
 
-               mode = strtoul(buf.buf, &ptr, 8);
-               if (ptr == buf.buf || *ptr != ' ')
+               errno = 0;
+               ul = strtoul(buf.buf, &ptr, 8);
+               if (ptr == buf.buf || *ptr != ' '
+                   || errno || (unsigned int) ul != ul)
                        goto bad_line;
+               mode = ul;
 
                tab = strchr(ptr, '\t');
                if (!tab || tab - ptr < 41)
@@ -357,7 +360,6 @@ static void read_index_info(int line_termination)
                                free(path_name);
                        continue;
                }
-               cache_tree_invalidate_path(active_cache_tree, path_name);
 
                if (!mode) {
                        /* mode == 0 means there is no such path -- remove */
@@ -464,7 +466,6 @@ static int unresolve_one(const char *path)
                goto free_return;
        }
 
-       cache_tree_invalidate_path(active_cache_tree, path);
        remove_file_from_cache(path);
        if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) {
                error("%s: cannot add our version to the index.", path);
@@ -623,7 +624,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
                                if (i+3 >= argc)
                                        die("git-update-index: --cacheinfo <mode> <sha1> <path>");
 
-                               if ((sscanf(argv[i+1], "%o", &mode) != 1) ||
+                               if (strtoul_ui(argv[i+1], 8, &mode) ||
                                    get_sha1_hex(argv[i+2], sha1) ||
                                    add_cacheinfo(mode, sha1, argv[i+3], 0))
                                        die("git-update-index: --cacheinfo"