diff options
Diffstat (limited to 'diff.c')
| -rw-r--r-- | diff.c | 43 |
1 files changed, 38 insertions, 5 deletions
@@ -1351,6 +1351,9 @@ static void emit_diff_symbol_from_struct(struct diff_options *o, int len = eds->len; unsigned flags = eds->flags; + if (o->dry_run) + return; + switch (s) { case DIFF_SYMBOL_NO_LF_EOF: context = diff_get_color_opt(o, DIFF_CONTEXT); @@ -4420,7 +4423,7 @@ static void run_external_diff(const struct external_diff *pgm, { struct child_process cmd = CHILD_PROCESS_INIT; struct diff_queue_struct *q = &diff_queued_diff; - int quiet = !(o->output_format & DIFF_FORMAT_PATCH); + int quiet = !(o->output_format & DIFF_FORMAT_PATCH) || o->dry_run; int rc; /* @@ -4615,7 +4618,8 @@ static void run_diff_cmd(const struct external_diff *pgm, p->status == DIFF_STATUS_RENAMED) o->found_changes = 1; } else { - fprintf(o->file, "* Unmerged path %s\n", name); + if (!o->dry_run) + fprintf(o->file, "* Unmerged path %s\n", name); o->found_changes = 1; } } @@ -6828,18 +6832,38 @@ void diff_flush(struct diff_options *options) DIFF_FORMAT_NAME | DIFF_FORMAT_NAME_STATUS | DIFF_FORMAT_CHECKDIFF)) { + /* + * make sure diff_Flush_patch_quietly() to be silent. + */ + FILE *dev_null = NULL; + int saved_color_moved = options->color_moved; + + if (options->flags.diff_from_contents) { + dev_null = xfopen("/dev/null", "w"); + options->color_moved = 0; + } for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; if (!check_pair_status(p)) continue; - if (options->flags.diff_from_contents && - !diff_flush_patch_quietly(p, options)) - continue; + if (options->flags.diff_from_contents) { + FILE *saved_file = options->file; + int found_changes; + options->file = dev_null; + found_changes = diff_flush_patch_quietly(p, options); + options->file = saved_file; + if (!found_changes) + continue; + } flush_one_pair(p, options); } + if (options->flags.diff_from_contents) { + fclose(dev_null); + options->color_moved = saved_color_moved; + } separator++; } @@ -6890,6 +6914,15 @@ void diff_flush(struct diff_options *options) if (output_format & DIFF_FORMAT_NO_OUTPUT && options->flags.exit_with_status && options->flags.diff_from_contents) { + /* + * run diff_flush_patch for the exit status. setting + * options->file to /dev/null should be safe, because we + * aren't supposed to produce any output anyway. + */ + diff_free_file(options); + options->file = xfopen("/dev/null", "w"); + options->close_file = 1; + options->color_moved = 0; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; if (check_pair_status(p)) |