Merge branch 'maint'

* maint:
  GIT 1.6.0.3
  rehabilitate 'git index-pack' inside the object store

Documentation/RelNotes-1.6.0.3.txt

@@ -27,9 +27,6 @@ Fixes since v1.6.0.2
 * "git diff" hunk header patterns with multiple elements separated by LF
   were not used correctly.
 
-* "git gc" when ejecting otherwise unreachable objects from packfiles into
-  loose form leaked memory.
-
 * Hunk headers in "git diff" default to using extended regular
   expressions, fixing some of the internal patterns on non-GNU
   platforms.
@@ -37,9 +34,15 @@ Fixes since v1.6.0.2
 * New config "diff.*.xfuncname" exposes extended regular expressions
   for user specified hunk header patterns.
 
+* "git gc" when ejecting otherwise unreachable objects from packfiles into
+  loose form leaked memory.
+
 * "git index-pack" was recently broken and mishandled objects added by
   thin-pack completion processing under memory pressure.
 
+* "git index-pack" was recently broken and misbehaved when run from inside
+  .git/objects/pack/ directory.
+
 * "git stash apply sash@{1}" was fixed to error out.  Prior versions
   would have applied stash@{0} incorrectly.
 
@@ -112,9 +115,3 @@ Fixes since v1.6.0.2
   ("git fetch") is still however supported.
 
 Many other documentation updates.
-
---
-exec >/var/tmp/1
-O=v1.6.0.2-110-gf07c3c5
-echo O=$(git describe maint)
-git shortlog --no-merges $O..maint

index-pack.c

@@ -880,10 +880,26 @@ int main(int argc, char **argv)
 	char *index_name_buf = NULL, *keep_name_buf = NULL;
 	struct pack_idx_entry **idx_objects;
 	unsigned char pack_sha1[20];
-	int nongit = 0;
 
-	setup_git_directory_gently(&nongit);
-	git_config(git_index_pack_config, NULL);
+	/*
+	 * We wish to read the repository's config file if any, and
+	 * for that it is necessary to call setup_git_directory_gently().
+	 * However if the cwd was inside .git/objects/pack/ then we need
+	 * to go back there or all the pack name arguments will be wrong.
+	 * And in that case we cannot rely on any prefix returned by
+	 * setup_git_directory_gently() either.
+	 */
+	{
+		char cwd[PATH_MAX+1];
+		int nongit;
+
+		if (!getcwd(cwd, sizeof(cwd)-1))
+			die("Unable to get current working directory");
+		setup_git_directory_gently(&nongit);
+		git_config(git_index_pack_config, NULL);
+		if (chdir(cwd))
+			die("Cannot come back to cwd");
+	}
 
 	for (i = 1; i < argc; i++) {
 		char *arg = argv[i];

t/t5302-pack-index.sh

@@ -177,4 +177,14 @@ test_expect_success \
        ".git/objects/pack/pack-${pack1}.pack" 2>&1) &&
      echo "$err" | grep "CRC mismatch"'
 
+test_expect_success 'running index-pack in the object store' '
+    rm -f .git/objects/pack/* &&
+    cp test-1-${pack1}.pack .git/objects/pack/pack-${pack1}.pack &&
+    (
+	cd .git/objects/pack
+	git index-pack pack-${pack1}.pack
+    ) &&
+    test -f .git/objects/pack/pack-${pack1}.idx
+'
+
 test_done