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 20/34] wrapper.c: wrapper to open a file, fprintf then close Date: Sun, 30 Nov 2014 15:24:45 +0700 Message-ID: <1417335899-27307-21-git-send-email-pclouds@gmail.com> References: <1417335899-27307-1-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 Sun Nov 30 09:29:01 2014 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 1XuzsK-0008VN-2Q for gcvg-git-2@plane.gmane.org; Sun, 30 Nov 2014 09:29:00 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752109AbaK3I24 convert rfc822-to-quoted-printable (ORCPT ); Sun, 30 Nov 2014 03:28:56 -0500 Received: from mail-pa0-f45.google.com ([209.85.220.45]:35987 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751910AbaK3I2z (ORCPT ); Sun, 30 Nov 2014 03:28:55 -0500 Received: by mail-pa0-f45.google.com with SMTP id lj1so9145425pab.32 for ; Sun, 30 Nov 2014 00:28:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; bh=3bSqJWXeiaoa8X4OSnDh+JXVUJeRWDucsWouYcu13Vg=; b=lK84sPwdP5Vi5ZIPxdHsRUVZeaTRfZMAOW9EXS8Rpak+2VZy5VFdkNnE/n2vdNegud RLmJnQ3EnTVjmp0Gf+wQYxXZGSR6ReIJGN4SlEz2G0/Ug/R5ig5b34MtrwqaI4kxJ5Hi ulAMMeGkItpxnXfKeshC1mLXwUzcyG9NxuG+huTySNEfAOKtVgz4XTM32fR2Kx/TFaXs SvB2MWnt1OwyV+53FUq7BnyzinAduKsR6lytGcAmt23t29i/YdVYsp8EycdiHcA4ACY1 uFOSYrQ0/WAtbVWQDgysBj87IpaHdWPmELyMekdKNB+Illz8qO9PfNSpfvZobIf8JLyd px2g== X-Received: by 10.66.145.42 with SMTP id sr10mr87331177pab.73.1417336135360; Sun, 30 Nov 2014 00:28:55 -0800 (PST) Received: from lanh ([115.73.247.22]) by mx.google.com with ESMTPSA id ms4sm3253228pbc.92.2014.11.30.00.28.51 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 30 Nov 2014 00:28:54 -0800 (PST) Received: by lanh (sSMTP sendmail emulation); Sun, 30 Nov 2014 15:28:53 +0700 X-Mailer: git-send-email 2.1.0.rc0.78.gc0d8480 In-Reply-To: <1417335899-27307-1-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: Signed-off-by: Nguy=E1=BB=85n Th=C3=A1i Ng=E1=BB=8Dc Duy --- cache.h | 2 ++ wrapper.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/cache.h b/cache.h index 9dc6ae0..f8e75a1 100644 --- a/cache.h +++ b/cache.h @@ -1499,6 +1499,8 @@ static inline ssize_t write_str_in_full(int fd, c= onst char *str) { return write_in_full(fd, str, strlen(str)); } +__attribute__((format (printf,3,4))) +extern int write_file(const char *path, int fatal, const char *fmt, ..= =2E); =20 /* pager.c */ extern void setup_pager(void); diff --git a/wrapper.c b/wrapper.c index 007ec0d..a2dff8e 100644 --- a/wrapper.c +++ b/wrapper.c @@ -550,3 +550,34 @@ char *xgetcwd(void) die_errno(_("unable to get current working directory")); return strbuf_detach(&sb, NULL); } + +int write_file(const char *path, int fatal, const char *fmt, ...) +{ + struct strbuf sb =3D STRBUF_INIT; + va_list params; + int fd =3D open(path, O_RDWR | O_CREAT | O_TRUNC, 0666); + if (fd < 0) { + if (fatal) + die_errno(_("could not open %s for writing"), path); + return -1; + } + va_start(params, fmt); + strbuf_vaddf(&sb, fmt, params); + va_end(params); + if (write_in_full(fd, sb.buf, sb.len) !=3D sb.len) { + int err =3D errno; + close(fd); + strbuf_release(&sb); + errno =3D err; + if (fatal) + die_errno(_("could not write to %s"), path); + return -1; + } + strbuf_release(&sb); + if (close(fd)) { + if (fatal) + die_errno(_("could not close %s"), path); + return -1; + } + return 0; +} --=20 2.1.0.rc0.78.gc0d8480