Documentation: don't assume git-sh-setup and git-parse-remote are in PATH

diff --git a/builtin-blame.c b/builtin-blame.c
index c7e68874e7f02ac150343ab6d7a0aa95601f2ba3..b451f6c64dde8ce6358bb5c8dfccc8bad181a6bb 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -123,8 +123,7 @@ static inline struct origin *origin_incref(struct origin *o)
 static void origin_decref(struct origin *o)
 {
        if (o && --o->refcnt <= 0) {
-               if (o->file.ptr)
-                       free(o->file.ptr);
+               free(o->file.ptr);
                free(o);
        }
 }
@@ -1894,9 +1893,7 @@ static unsigned parse_score(const char *arg)
 
 static const char *add_prefix(const char *prefix, const char *path)
 {
-       if (!prefix || !prefix[0])
-               return path;
-       return prefix_path(prefix, strlen(prefix), path);
+       return prefix_path(prefix, prefix ? strlen(prefix) : 0, path);
 }
 
 /*
@@ -1996,7 +1993,7 @@ static void prepare_blame_range(struct scoreboard *sb,
                usage(blame_usage);
 }
 
-static int git_blame_config(const char *var, const char *value)
+static int git_blame_config(const char *var, const char *value, void *cb)
 {
        if (!strcmp(var, "blame.showroot")) {
                show_root = git_config_bool(var, value);
@@ -2006,7 +2003,7 @@ static int git_blame_config(const char *var, const char *value)
                blank_boundary = git_config_bool(var, value);
                return 0;
        }
-       return git_default_config(var, value);
+       return git_default_config(var, value, cb);
 }
 
 static struct commit *fake_working_tree_commit(const char *path, const char *contents_from)
@@ -2073,7 +2070,7 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
                if (strbuf_read(&buf, 0, 0) < 0)
                        die("read error %s from stdin", strerror(errno));
        }
-       convert_to_git(path, buf.buf, buf.len, &buf);
+       convert_to_git(path, buf.buf, buf.len, &buf, 0);
        origin->file.ptr = buf.buf;
        origin->file.size = buf.len;
        pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
@@ -2144,7 +2141,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 
        cmd_is_annotate = !strcmp(argv[0], "annotate");
 
-       git_config(git_blame_config);
+       git_config(git_blame_config, NULL);
        save_commit_buffer = 0;
 
        opt = 0;
@@ -2369,7 +2366,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
         * bottom commits we would reach while traversing as
         * uninteresting.
         */
-       prepare_revision_walk(&revs);
+       if (prepare_revision_walk(&revs))
+               die("revision walk setup failed");
 
        if (is_null_sha1(sb.final->object.sha1)) {
                char *buf;