From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Subject: [PATCH v4 12/13] column: support piping stdout to external git-column process Date: Fri, 3 Feb 2012 20:34:37 +0700 Message-ID: <1328276078-27955-13-git-send-email-pclouds@gmail.com> References: <1328276078-27955-1-git-send-email-pclouds@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Fri Feb 03 14:32:50 2012 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 1RtJFx-0000EH-7y for gcvg-git-2@plane.gmane.org; Fri, 03 Feb 2012 14:32:50 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756449Ab2BCNcU convert rfc822-to-quoted-printable (ORCPT ); Fri, 3 Feb 2012 08:32:20 -0500 Received: from mail-pw0-f46.google.com ([209.85.160.46]:47389 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756440Ab2BCNcT (ORCPT ); Fri, 3 Feb 2012 08:32:19 -0500 Received: by mail-pw0-f46.google.com with SMTP id u11so2900162pbd.19 for ; Fri, 03 Feb 2012 05:32:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=LTVxW8FO2wXgpha5yu9flzkSpQaH/B1VyCQW7werSWQ=; b=cAntjEIr4F5yHYRCtfftCIpM9HEXbx1yvsiIWqRU/ghO60Vw5mWfpNDG6H/IliCuQO /2kIofxu2WdwL1daONAC3kublyo1Mm4Fi4v1PGciXjhTJRzjYTPYoAQF1qTeARbTqZxl pwgQOvKoW8TxUXBUm63HS4kC62s+8/7owugqY= Received: by 10.68.222.194 with SMTP id qo2mr17710299pbc.20.1328275937150; Fri, 03 Feb 2012 05:32:17 -0800 (PST) Received: from tre ([115.74.57.120]) by mx.google.com with ESMTPS id r9sm13131020pbi.6.2012.02.03.05.32.13 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 03 Feb 2012 05:32:16 -0800 (PST) Received: by tre (sSMTP sendmail emulation); Fri, 03 Feb 2012 20:36:26 +0700 X-Mailer: git-send-email 1.7.8.36.g69ee2 In-Reply-To: <1328276078-27955-1-git-send-email-pclouds@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: =46or too complicated output handling, it'd be easier to just spawn git-column and redirect stdout to it. This patch provides helpers to do that. Signed-off-by: Nguy=E1=BB=85n Th=C3=A1i Ng=E1=BB=8Dc Duy --- column.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++= ++++++++ column.h | 3 ++ 2 files changed, 72 insertions(+), 0 deletions(-) diff --git a/column.c b/column.c index 671ee5d..ff8e4ac 100644 --- a/column.c +++ b/column.c @@ -2,6 +2,7 @@ #include "column.h" #include "string-list.h" #include "parse-options.h" +#include "run-command.h" #include "color.h" #include "utf8.h" =20 @@ -422,3 +423,71 @@ int parseopt_column_callback(const struct option *= opt, *mode |=3D COL_ENABLED | COL_ENABLED_SET; return 0; } + +static int fd_out =3D -1; +static struct child_process column_process; + +int run_column_filter(int colopts, const struct column_options *opts) +{ + const char *av[10]; + int ret, ac =3D 0; + struct strbuf sb_colopt =3D STRBUF_INIT; + struct strbuf sb_width =3D STRBUF_INIT; + struct strbuf sb_padding =3D STRBUF_INIT; + + if (fd_out !=3D -1) + return -1; + + av[ac++] =3D "column"; + strbuf_addf(&sb_colopt, "--rawmode=3D0x%x", colopts); + av[ac++] =3D sb_colopt.buf; + if (opts->width) { + strbuf_addf(&sb_width, "--width=3D%d", opts->width); + av[ac++] =3D sb_width.buf; + } + if (opts->indent) { + av[ac++] =3D "--indent"; + av[ac++] =3D opts->indent; + } + if (opts->padding) { + strbuf_addf(&sb_padding, "--padding=3D%d", opts->padding); + av[ac++] =3D sb_padding.buf; + } + av[ac] =3D NULL; + + fflush(stdout); + memset(&column_process, 0, sizeof(column_process)); + column_process.in =3D -1; + column_process.out =3D dup(1); + column_process.git_cmd =3D 1; + column_process.argv =3D av; + + ret =3D start_command(&column_process); + + strbuf_release(&sb_colopt); + strbuf_release(&sb_width); + strbuf_release(&sb_padding); + + if (ret) + return -2; + + fd_out =3D dup(1); + close(1); + dup2(column_process.in, 1); + close(column_process.in); + return 0; +} + +int stop_column_filter() +{ + if (fd_out =3D=3D -1) + return -1; + + fflush(stdout); + close(1); + finish_command(&column_process); + dup2(fd_out, 1); + close(fd_out); + fd_out =3D -1; + return 0; +} diff --git a/column.h b/column.h index afdafc4..58d73b8 100644 --- a/column.h +++ b/column.h @@ -35,4 +35,7 @@ struct option; extern int parseopt_column_callback(const struct option *opt, const char *arg, int unset); =20 +extern int run_column_filter(int colopts, const struct column_options = *); +extern int stop_column_filter(); + #endif --=20 1.7.8.36.g69ee2