pkt-line: fix packet_read_line() to handle len < 0 errors

diff --git a/builtin/grep.c b/builtin/grep.c
index 837836fb3e3bf9cdeb25edf8789428aaf813f49d..3f3efa95de2570bcd4f51a29fc7936817b9cee23 100644 (file)
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -538,7 +538,7 @@ static int grep_submodule_launch(struct grep_opt *opt,
        int status, i;
        const char *end_of_base;
        const char *name;
-       struct work_item *w = opt->output_priv;
+       struct strbuf child_output = STRBUF_INIT;
 
        end_of_base = strchr(gs->name, ':');
        if (gs->identifier && end_of_base)
@@ -593,14 +593,16 @@ static int grep_submodule_launch(struct grep_opt *opt,
         * child process.  A '0' indicates a hit, a '1' indicates no hit and
         * anything else is an error.
         */
-       status = capture_command(&cp, &w->out, 0);
+       status = capture_command(&cp, &child_output, 0);
        if (status && (status != 1)) {
                /* flush the buffer */
-               write_or_die(1, w->out.buf, w->out.len);
+               write_or_die(1, child_output.buf, child_output.len);
                die("process for submodule '%s' failed with exit code: %d",
                    gs->name, status);
        }
 
+       opt->output(opt, child_output.buf, child_output.len);
+       strbuf_release(&child_output);
        /* invert the return code to make a hit equal to 1 */
        return !status;
 }
@@ -616,7 +618,7 @@ static int grep_submodule(struct grep_opt *opt, const unsigned char *sha1,
 {
        if (!is_submodule_initialized(path))
                return 0;
-       if (!is_submodule_populated(path)) {
+       if (!is_submodule_populated_gently(path, NULL)) {
                /*
                 * If searching history, check for the presense of the
                 * submodule's gitdir before skipping the submodule.
@@ -641,19 +643,14 @@ static int grep_submodule(struct grep_opt *opt, const unsigned char *sha1,
        } else
 #endif
        {
-               struct work_item w;
+               struct grep_source gs;
                int hit;
 
-               grep_source_init(&w.source, GREP_SOURCE_SUBMODULE,
+               grep_source_init(&gs, GREP_SOURCE_SUBMODULE,
                                 filename, path, sha1);
-               strbuf_init(&w.out, 0);
-               opt->output_priv = &w;
-               hit = grep_submodule_launch(opt, &w.source);
+               hit = grep_submodule_launch(opt, &gs);
 
-               write_or_die(1, w.out.buf, w.out.len);
-
-               grep_source_clear(&w.source);
-               strbuf_release(&w.out);
+               grep_source_clear(&gs);
                return hit;
        }
 }