[PATCH 2/2] cli: config: fix config file save when the file does not exist

[Jani Nikula]

The use of realpath(3) in
commit 58ed67992d0ec1fa505026105218fa449f7980b0
Author: Jani Nikula <jani at nikula.org>
Date:   Sun Apr 7 20:15:03 2013 +0300

    cli: config: do not overwrite symlinks when saving config file

broke config file save when the file does not exist, which results in
'notmuch setup' always failing to create a new config file.

Fix by checking ENOENT from realpath(3).
---
 notmuch-config.c |   17 +++++++++++++----
 test/setup       |    1 -
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/notmuch-config.c b/notmuch-config.c
index d9c2eb3..befe9b5 100644
--- a/notmuch-config.c
+++ b/notmuch-config.c
@@ -456,10 +456,19 @@ notmuch_config_save (notmuch_config_t *config)
     /* Try not to overwrite symlinks. */
     filename = realpath (config->filename, NULL);
     if (! filename) {
-       fprintf (stderr, "Error canonicalizing %s: %s\n", config->filename,
-                strerror (errno));
-       g_free (data);
-       return 1;
+       if (errno == ENOENT) {
+           filename = strdup (config->filename);
+           if (! filename) {
+               fprintf (stderr, "Out of memory.\n");
+               g_free (data);
+               return 1;
+           }
+       } else {
+           fprintf (stderr, "Error canonicalizing %s: %s\n", config->filename,
+                    strerror (errno));
+           g_free (data);
+           return 1;
+       }
     }

     if (! g_file_set_contents (filename, data, length, &error)) {
diff --git a/test/setup b/test/setup
index 8cc5576..124ef1c 100755
--- a/test/setup
+++ b/test/setup
@@ -4,7 +4,6 @@ test_description='"notmuch setup"'
 . ./test-lib.sh

 test_begin_subtest "Create a new config interactively"
-test_subtest_known_broken
 notmuch --config=new-notmuch-config > /dev/null <<EOF
 Test Suite
 test.suite at example.com
-- 
1.7.10.4