From: Tomi Ollila <tomi.ollila@iki.fi>
Date: Tue, 28 May 2013 18:38:52 +0000 (+0300)
Subject: [PATCH v3 1/4] cli: add global option --stderr=FILE
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=f761c75a8931870dcf0f85fb473f84a12bf0b7ab;p=notmuch-archives.git

[PATCH v3 1/4] cli: add global option --stderr=FILE
---

diff --git a/20/d0907a1ffde1ffee0e128eea265b99646a7d5f b/20/d0907a1ffde1ffee0e128eea265b99646a7d5f
new file mode 100644
index 000000000..0ebd4276c
--- /dev/null
+++ b/20/d0907a1ffde1ffee0e128eea265b99646a7d5f
@@ -0,0 +1,132 @@
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+From: Tomi Ollila <tomi.ollila@iki.fi>
+To: notmuch@notmuchmail.org
+Subject: [PATCH v3 1/4] cli: add global option --stderr=FILE
+Date: Tue, 28 May 2013 21:38:52 +0300
+Message-Id: <1369766335-26733-2-git-send-email-tomi.ollila@iki.fi>
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+References: <1369766335-26733-1-git-send-email-tomi.ollila@iki.fi>
+Cc: tomi.ollila@iki.fi
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+
+With this option all writes to stderr are redirected to the spesified
+FILE (or to stdout on case FILE is '-'). This is immediately useful
+in emacs interface as some of its exec intefaces do not provide
+separation of stdout and stderr.
+---
+ notmuch-client.h |  1 +
+ notmuch.c        | 32 ++++++++++++++++++++++++++++++++
+ 2 files changed, 33 insertions(+)
+
+diff --git a/notmuch-client.h b/notmuch-client.h
+index 45749a6..4a3c7ac 100644
+--- a/notmuch-client.h
++++ b/notmuch-client.h
+@@ -54,6 +54,7 @@ typedef GMimeCipherContext notmuch_crypto_context_t;
+ #include <sys/stat.h>
+ #include <sys/time.h>
+ #include <unistd.h>
++#include <fcntl.h>
+ #include <dirent.h>
+ #include <errno.h>
+ #include <signal.h>
+diff --git a/notmuch.c b/notmuch.c
+index f51a84f..15e90c8 100644
+--- a/notmuch.c
++++ b/notmuch.c
+@@ -251,6 +251,32 @@ notmuch_command (notmuch_config_t *config,
+     return 0;
+ }
+ 
++static int
++redirect_stderr (const char * stderr_file)
++{
++    if (strcmp (stderr_file, "-") == 0) {
++	if (dup2 (STDOUT_FILENO, STDERR_FILENO) < 0) {
++	    perror ("dup2");
++	    return 1;
++	}
++    } else {
++	int fd = open (stderr_file, O_WRONLY|O_CREAT|O_TRUNC, 0666);
++	if (fd < 0) {
++	    fprintf (stderr, "Error: Cannot redirect stderr to '%s': %s\n",
++		     stderr_file, strerror (errno));
++	    return 1;
++	}
++	if (fd != STDERR_FILENO) {
++	    if (dup2 (fd, STDERR_FILENO) < 0) {
++		perror ("dup2");
++		return 1;
++	    }
++	    close (fd);
++	}
++    }
++    return 0;
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -259,6 +285,7 @@ main (int argc, char *argv[])
+     const char *command_name = NULL;
+     command_t *command;
+     char *config_file_name = NULL;
++    char *stderr_file = NULL;
+     notmuch_config_t *config;
+     notmuch_bool_t print_help=FALSE, print_version=FALSE;
+     int opt_index;
+@@ -268,6 +295,7 @@ main (int argc, char *argv[])
+ 	{ NOTMUCH_OPT_BOOLEAN, &print_help, "help", 'h', 0 },
+ 	{ NOTMUCH_OPT_BOOLEAN, &print_version, "version", 'v', 0 },
+ 	{ NOTMUCH_OPT_STRING, &config_file_name, "config", 'c', 0 },
++	{ NOTMUCH_OPT_STRING, &stderr_file, "stderr", '\0', 0 },
+ 	{ 0, 0, 0, 0, 0 }
+     };
+ 
+@@ -287,6 +315,10 @@ main (int argc, char *argv[])
+ 	return 1;
+     }
+ 
++    if (stderr_file && redirect_stderr (stderr_file) != 0) {
++	/* error already printed */
++	return 1;
++    }
+     if (print_help)
+ 	return notmuch_help_command (NULL, argc - 1, &argv[1]);
+ 
+-- 
+1.8.1.4
+