[ostree] Add --disable-fsync option to both commit and pull (non-local)

[Colin Walters <walters src gnome org>]

commit f22fa92aef0cf7334d09addacfdfc70c9f10e075
Author: James Antill <james and org>
Date:   Mon Jun 2 16:31:58 2014 -0400

    Add --disable-fsync option to both commit and pull (non-local)
    
    On some storage configurations, fsync() can be extremely expensive.
    Developers and users with slow hard drives may want the ability to opt
    for speed over safety.
    
    Furthermore, many production servers have UPS and stable kernels, and
    the risk of not fsync'ing in that scenario is fairly low.  These users
    should also be able to opt out.

 src/ostree/ot-builtin-commit.c |    4 ++++
 src/ostree/ot-builtin-pull.c   |    5 +++++
 2 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/src/ostree/ot-builtin-commit.c b/src/ostree/ot-builtin-commit.c
index 6f63205..fb11a05 100644
--- a/src/ostree/ot-builtin-commit.c
+++ b/src/ostree/ot-builtin-commit.c
@@ -46,6 +46,7 @@ static char **opt_key_ids;
 static char *opt_gpg_homedir;
 #endif
 static gboolean opt_generate_sizes;
+static gboolean opt_disable_fsync;
 
 static GOptionEntry options[] = {
   { "subject", 's', 0, G_OPTION_ARG_STRING, &opt_subject, "One line subject", "subject" },
@@ -67,6 +68,7 @@ static GOptionEntry options[] = {
   { "gpg-homedir", 0, 0, G_OPTION_ARG_STRING, &opt_gpg_homedir, "GPG Homedir to use when looking for 
keyrings", "homedir"},
 #endif
   { "generate-sizes", 0, 0, G_OPTION_ARG_NONE, &opt_generate_sizes, "Generate size information along with 
commit metadata", NULL },
+  { "disable-fsync", 0, 0, G_OPTION_ARG_NONE, &opt_disable_fsync, "Do not invoke fsync()", NULL },
   { NULL }
 };
 
@@ -326,6 +328,8 @@ ostree_builtin_commit (int argc, char **argv, OstreeRepo *repo, GCancellable *ca
     flags |= OSTREE_REPO_COMMIT_MODIFIER_FLAGS_SKIP_XATTRS;
   if (opt_generate_sizes)
     flags |= OSTREE_REPO_COMMIT_MODIFIER_FLAGS_GENERATE_SIZES;
+  if (opt_disable_fsync)
+    ostree_repo_set_disable_fsync (repo, TRUE);
 
   if (flags != 0
       || opt_owner_uid >= 0
diff --git a/src/ostree/ot-builtin-pull.c b/src/ostree/ot-builtin-pull.c
index a29bbb7..4ed1a15 100644
--- a/src/ostree/ot-builtin-pull.c
+++ b/src/ostree/ot-builtin-pull.c
@@ -27,7 +27,10 @@
 #include "ostree.h"
 #include "otutil.h"
 
+static gboolean opt_disable_fsync;
+
 static GOptionEntry options[] = {
+  { "disable-fsync", 0, 0, G_OPTION_ARG_NONE, &opt_disable_fsync, "Do not invoke fsync()", NULL },
   { NULL }
 };
 
@@ -54,6 +57,8 @@ ostree_builtin_pull (int argc, char **argv, OstreeRepo *repo, GCancellable *canc
       goto out;
     }
 
+  if (opt_disable_fsync)
+    ostree_repo_set_disable_fsync (repo, TRUE);
 
   if (strchr (argv[1], ':') == NULL)
     {