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 v6 10/11] column: support piping stdout to external git-column process Date: Sat, 25 Feb 2012 18:41:17 +0700 Message-ID: <1330170078-29353-11-git-send-email-pclouds@gmail.com> References: <1330170078-29353-1-git-send-email-pclouds@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Junio C Hamano , =?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 Sat Feb 25 12:40:23 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 1S1FzC-0002Ur-Im for gcvg-git-2@plane.gmane.org; Sat, 25 Feb 2012 12:40:22 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756609Ab2BYLkJ convert rfc822-to-quoted-printable (ORCPT ); Sat, 25 Feb 2012 06:40:09 -0500 Received: from mail-pz0-f46.google.com ([209.85.210.46]:44098 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756470Ab2BYLkH (ORCPT ); Sat, 25 Feb 2012 06:40:07 -0500 Received: by mail-pz0-f46.google.com with SMTP id d14so3436768dae.19 for ; Sat, 25 Feb 2012 03:40:07 -0800 (PST) Received-SPF: pass (google.com: domain of pclouds@gmail.com designates 10.68.230.201 as permitted sender) client-ip=10.68.230.201; Authentication-Results: mr.google.com; spf=pass (google.com: domain of pclouds@gmail.com designates 10.68.230.201 as permitted sender) smtp.mail=pclouds@gmail.com; dkim=pass header.i=pclouds@gmail.com Received: from mr.google.com ([10.68.230.201]) by 10.68.230.201 with SMTP id ta9mr18668933pbc.74.1330170007569 (num_hops = 1); Sat, 25 Feb 2012 03:40:07 -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=7uQXk2iWAH1BQJyfUHZsOscedlyiVAgSCliVRB6gW7w=; b=qVVGs7JEDVzRXmEYgy3KLGP0U1NmaXJ085nIjHfe0kaexnQR53q9AfyEHBM7zgOob1 KDjbBfYEso1Z3YYUx6p7UNrW5iKz380tuyZcUcAy5STYlCIlsJ+B0MHf5ztEzJ4bsMeE 3UXS5ndJembd5Fl4BjXmDUvJ9RBZYsOyAVn9I= Received: by 10.68.230.201 with SMTP id ta9mr15519505pbc.74.1330170007530; Sat, 25 Feb 2012 03:40:07 -0800 (PST) Received: from tre ([115.74.53.120]) by mx.google.com with ESMTPS id k6sm7012236pbl.27.2012.02.25.03.40.04 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 25 Feb 2012 03:40:06 -0800 (PST) Received: by tre (sSMTP sendmail emulation); Sat, 25 Feb 2012 18:42:26 +0700 X-Mailer: git-send-email 1.7.8.36.g69ee2 In-Reply-To: <1330170078-29353-1-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 94fd1a1..ecf2d14 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 @@ -407,3 +408,71 @@ 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=3D%d", 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(void) +{ + 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 43528da..cb81c8a 100644 --- a/column.h +++ b/column.h @@ -34,4 +34,7 @@ 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