From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karthik Nayak Subject: [PATCH v11 07/13] ref-filter: support printing N lines from tag annotation Date: Sat, 15 Aug 2015 23:30:37 +0530 Message-ID: <1439661643-16094-8-git-send-email-Karthik.188@gmail.com> Cc: christian.couder@gmail.com, Matthieu.Moy@grenoble-inp.fr, gitster@pobox.com, Karthik Nayak To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Sat Aug 15 20:01:13 2015 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZQflZ-0001a1-67 for gcvg-git-2@plane.gmane.org; Sat, 15 Aug 2015 20:01:13 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754186AbbHOSA6 (ORCPT ); Sat, 15 Aug 2015 14:00:58 -0400 Received: from mail-pa0-f50.google.com ([209.85.220.50]:33747 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754089AbbHOSA5 (ORCPT ); Sat, 15 Aug 2015 14:00:57 -0400 Received: by pabyb7 with SMTP id yb7so79256497pab.0 for ; Sat, 15 Aug 2015 11:00:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=2xMm7AAc+yxurL0DbwpVJnWxwiKrqP/ewjPS4ra4WwA=; b=gMwu7K+U1cvqJXz0NZp+Y/KdZXe+LsW0gDLTu6BJVZWM2iNZ9TRrrdCViLGmr7395d k3gls2l2S4y3J3aJ9nRcGTo6PZfOde3GrSSS8LZ1kY11JhaE4W0oc45fMpmCC8aSbcYl pHWkutDhm9otKdjcLKcv+xH62gRfgRF+aABBSwuBcLyH6aDdBKeadMzGm0G45Gg5eBJG PEVVGocV8fCzhegvA6B4fNejz3J+AylLx6z81GwDHXYn+PwUBMfMosUBXXU+vOvUQjc/ 8RpAyhK/o7qL8KMjKlg6Hm7yZr8zmvQbW0+OicvJkqGz9j+ae7U3otGr99NK9Q2JQlSZ jdjA== X-Received: by 10.68.134.169 with SMTP id pl9mr101301445pbb.164.1439661656514; Sat, 15 Aug 2015 11:00:56 -0700 (PDT) Received: from ashley.localdomain ([106.51.130.23]) by smtp.gmail.com with ESMTPSA id pe3sm9424144pdb.55.2015.08.15.11.00.53 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 15 Aug 2015 11:00:55 -0700 (PDT) X-Google-Original-From: Karthik Nayak X-Mailer: git-send-email 2.5.0 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: From: Karthik Nayak In 'tag.c' we can print N lines from the annotation of the tag using the '-n' option. Copy code from 'tag.c' to 'ref-filter' and modify 'ref-filter' to support printing of N lines from the annotation of tags. Mentored-by: Christian Couder Mentored-by: Matthieu Moy Signed-off-by: Karthik Nayak --- builtin/for-each-ref.c | 2 +- builtin/tag.c | 4 ++++ ref-filter.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++++- ref-filter.h | 11 ++++++++--- 4 files changed, 64 insertions(+), 5 deletions(-) diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c index 40f343b..e4a4f8a 100644 --- a/builtin/for-each-ref.c +++ b/builtin/for-each-ref.c @@ -74,7 +74,7 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix) if (!maxcount || array.nr < maxcount) maxcount = array.nr; for (i = 0; i < maxcount; i++) - show_ref_array_item(array.items[i], format, quote_style); + show_ref_array_item(array.items[i], format, quote_style, 0); ref_array_clear(&array); return 0; } diff --git a/builtin/tag.c b/builtin/tag.c index 471d6b1..0fc7557 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -185,6 +185,10 @@ static enum contains_result contains(struct commit *candidate, return contains_test(candidate, want); } +/* + * Currently duplicated in ref-filter, will eventually be removed as + * we port tag.c to use ref-filter APIs. + */ static void show_tag_lines(const struct object_id *oid, int lines) { int i; diff --git a/ref-filter.c b/ref-filter.c index abcd235..2f302b4 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -1398,7 +1398,51 @@ static void append_literal(const char *cp, const char *ep, struct ref_formatting } } -void show_ref_array_item(struct ref_array_item *info, const char *format, int quote_style) +/* + * If 'lines' is greater than 0, print that many lines from the given + * object_id 'oid'. + */ +static void show_tag_lines(const struct object_id *oid, int lines) +{ + int i; + unsigned long size; + enum object_type type; + char *buf, *sp, *eol; + size_t len; + + buf = read_sha1_file(oid->hash, &type, &size); + if (!buf) + die_errno("unable to read object %s", oid_to_hex(oid)); + if (type != OBJ_COMMIT && type != OBJ_TAG) + goto free_return; + if (!size) + die("an empty %s object %s?", + typename(type), oid_to_hex(oid)); + + /* skip header */ + sp = strstr(buf, "\n\n"); + if (!sp) + goto free_return; + + /* only take up to "lines" lines, and strip the signature from a tag */ + if (type == OBJ_TAG) + size = parse_signature(buf, size); + for (i = 0, sp += 2; i < lines && sp < buf + size; i++) { + if (i) + printf("\n "); + eol = memchr(sp, '\n', size - (sp - buf)); + len = eol ? eol - sp : size - (sp - buf); + fwrite(sp, len, 1, stdout); + if (!eol) + break; + sp = eol + 1; + } +free_return: + free(buf); +} + +void show_ref_array_item(struct ref_array_item *info, const char *format, + int quote_style, unsigned int lines) { const char *cp, *sp, *ep; struct strbuf *final_buf; @@ -1434,6 +1478,12 @@ void show_ref_array_item(struct ref_array_item *info, const char *format, int qu final_buf = &state->output; fwrite(final_buf->buf, 1, final_buf->len, stdout); pop_state(&state); + + if (lines > 0) { + struct object_id oid; + hashcpy(oid.hash, info->objectname); + show_tag_lines(&oid, lines); + } putchar('\n'); } diff --git a/ref-filter.h b/ref-filter.h index 64fedd3..0f2048d 100644 --- a/ref-filter.h +++ b/ref-filter.h @@ -59,7 +59,8 @@ struct ref_filter { struct commit *merge_commit; unsigned int with_commit_tag_algo : 1; - unsigned int kind; + unsigned int kind, + lines; }; struct ref_filter_cbdata { @@ -91,8 +92,12 @@ int parse_ref_filter_atom(const char *atom, const char *ep); int verify_ref_format(const char *format); /* Sort the given ref_array as per the ref_sorting provided */ void ref_array_sort(struct ref_sorting *sort, struct ref_array *array); -/* Print the ref using the given format and quote_style */ -void show_ref_array_item(struct ref_array_item *info, const char *format, int quote_style); +/* + * Print the ref using the given format and quote_style. If 'lines' > 0, + * print that many lines of the the given ref. + */ +void show_ref_array_item(struct ref_array_item *info, const char *format, + int quote_style, unsigned int lines); /* Callback function for parsing the sort option */ int parse_opt_ref_sorting(const struct option *opt, const char *arg, int unset); /* Default sort option based on refname */ -- 2.5.0