ident.c: add support for IPv6

diff --git a/cache-tree.c b/cache-tree.c
index c53f7de2b13acfc1b97c60b04552e57791377442..feace8bd90913ff28fa7ec2d052b355ad23935ca 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "lockfile.h"
 #include "tree.h"
 #include "tree-walk.h"
 #include "cache-tree.h"
@@ -246,9 +247,12 @@ static int update_one(struct cache_tree *it,
        struct strbuf buffer;
        int missing_ok = flags & WRITE_TREE_MISSING_OK;
        int dryrun = flags & WRITE_TREE_DRY_RUN;
+       int repair = flags & WRITE_TREE_REPAIR;
        int to_invalidate = 0;
        int i;
 
+       assert(!(dryrun && repair));
+
        *skip_count = 0;
 
        if (0 <= it->entry_count && has_sha1_file(it->sha1))
@@ -299,6 +303,8 @@ static int update_one(struct cache_tree *it,
                                    flags);
                if (subcnt < 0)
                        return subcnt;
+               if (!subcnt)
+                       die("index cache-tree records empty sub-tree");
                i += subcnt;
                sub->count = subcnt; /* to be used in the next loop */
                *skip_count += subskip;
@@ -320,6 +326,7 @@ static int update_one(struct cache_tree *it,
                int pathlen, entlen;
                const unsigned char *sha1;
                unsigned mode;
+               int expected_missing = 0;
 
                path = ce->name;
                pathlen = ce_namelen(ce);
@@ -336,8 +343,10 @@ static int update_one(struct cache_tree *it,
                        i += sub->count;
                        sha1 = sub->cache_tree->sha1;
                        mode = S_IFDIR;
-                       if (sub->cache_tree->entry_count < 0)
+                       if (sub->cache_tree->entry_count < 0) {
                                to_invalidate = 1;
+                               expected_missing = 1;
+                       }
                }
                else {
                        sha1 = ce->sha1;
@@ -347,6 +356,8 @@ static int update_one(struct cache_tree *it,
                }
                if (mode != S_IFGITLINK && !missing_ok && !has_sha1_file(sha1)) {
                        strbuf_release(&buffer);
+                       if (expected_missing)
+                               return -1;
                        return error("invalid object %06o %s for '%.*s'",
                                mode, sha1_to_hex(sha1), entlen+baselen, path);
                }
@@ -381,7 +392,14 @@ static int update_one(struct cache_tree *it,
 #endif
        }
 
-       if (dryrun)
+       if (repair) {
+               unsigned char sha1[20];
+               hash_sha1_file(buffer.buf, buffer.len, tree_type, sha1);
+               if (has_sha1_file(sha1))
+                       hashcpy(it->sha1, sha1);
+               else
+                       to_invalidate = 1;
+       } else if (dryrun)
                hash_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1);
        else if (write_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1)) {
                strbuf_release(&buffer);
@@ -574,7 +592,7 @@ static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *pat
        return it;
 }
 
-int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
+int write_index_as_tree(unsigned char *sha1, struct index_state *index_state, const char *index_path, int flags, const char *prefix)
 {
        int entries, was_valid, newfd;
        struct lock_file *lock_file;
@@ -585,23 +603,23 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
         */
        lock_file = xcalloc(1, sizeof(struct lock_file));
 
-       newfd = hold_locked_index(lock_file, 1);
+       newfd = hold_lock_file_for_update(lock_file, index_path, LOCK_DIE_ON_ERROR);
 
-       entries = read_cache();
+       entries = read_index_from(index_state, index_path);
        if (entries < 0)
                return WRITE_TREE_UNREADABLE_INDEX;
        if (flags & WRITE_TREE_IGNORE_CACHE_TREE)
-               cache_tree_free(&(active_cache_tree));
+               cache_tree_free(&index_state->cache_tree);
 
-       if (!active_cache_tree)
-               active_cache_tree = cache_tree();
+       if (!index_state->cache_tree)
+               index_state->cache_tree = cache_tree();
 
-       was_valid = cache_tree_fully_valid(active_cache_tree);
+       was_valid = cache_tree_fully_valid(index_state->cache_tree);
        if (!was_valid) {
-               if (cache_tree_update(&the_index, flags) < 0)
+               if (cache_tree_update(index_state, flags) < 0)
                        return WRITE_TREE_UNMERGED_INDEX;
                if (0 <= newfd) {
-                       if (!write_locked_index(&the_index, lock_file, COMMIT_LOCK))
+                       if (!write_locked_index(index_state, lock_file, COMMIT_LOCK))
                                newfd = -1;
                }
                /* Not being able to write is fine -- we are only interested
@@ -613,14 +631,14 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
        }
 
        if (prefix) {
-               struct cache_tree *subtree =
-                       cache_tree_find(active_cache_tree, prefix);
+               struct cache_tree *subtree;
+               subtree = cache_tree_find(index_state->cache_tree, prefix);
                if (!subtree)
                        return WRITE_TREE_PREFIX_ERROR;
                hashcpy(sha1, subtree->sha1);
        }
        else
-               hashcpy(sha1, active_cache_tree->sha1);
+               hashcpy(sha1, index_state->cache_tree->sha1);
 
        if (0 <= newfd)
                rollback_lock_file(lock_file);
@@ -628,6 +646,11 @@ int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
        return 0;
 }
 
+int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
+{
+       return write_index_as_tree(sha1, &the_index, get_index_file(), flags, prefix);
+}
+
 static void prime_cache_tree_rec(struct cache_tree *it, struct tree *tree)
 {
        struct tree_desc desc;