ibus-daemon update user cache when user observed path is updated

ibus-daemon update user cache when user observed path is updated

After the system registry cache is generated by root,
the cache remembers the observed path exists in /root == '~'
but if a user updates the user observed path, the observed path
exists in '~' and ibus-daemon cannot get the updated mtime
because the cache refers the root directory but not the user directory.
The patch tries to save '~' instead of the actual home dir
in the cache.

BUG=https://github.com/ibus/ibus/issues/1815
R=Shawn.P.Huang@gmail.com

Committed: 1d678673e18e132ed53df32502b779b0a56314d5

[Peng, 2015-09-05 13:02:08]

https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c
File src/ibusobservedpath.c (right):

https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c#newcod...
src/ibusobservedpath.c:300: path->path = g_build_filename (homedir, node->text +
2, NULL);
How about we keep '~' in the path->path? instead of using ${HOME:} in serialize.

And expend the '~' in ibus_observed_path_check_modification?

[fujiwara, 2015-09-07 07:07:30]

https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c
File src/ibusobservedpath.c (right):

https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c#newcod...
src/ibusobservedpath.c:300: path->path = g_build_filename (homedir, node->text +
2, NULL);
On 2015/09/05 13:02:08, Peng wrote:
> How about we keep '~' in the path->path? instead of using ${HOME:} in
serialize.
> 
> And expend the '~' in ibus_observed_path_check_modification?

Done.

[Peng, 2015-09-07 17:53:16]

On 2015/09/07 07:07:30, fujiwara wrote:
> https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c
> File src/ibusobservedpath.c (right):
> 
>
https://codereview.appspot.com/261040043/diff/1/src/ibusobservedpath.c#newcod...
> src/ibusobservedpath.c:300: path->path = g_build_filename (homedir, node->text
+
> 2, NULL);
> On 2015/09/05 13:02:08, Peng wrote:
> > How about we keep '~' in the path->path? instead of using ${HOME:} in
> serialize.
> > 
> > And expend the '~' in ibus_observed_path_check_modification?
> 
> Done.

lgtm

[fujiwara, 2015-09-08 04:01:44]

Committed patchset #2 (id:20001) manually as
1d678673e18e132ed53df32502b779b0a56314d5 (presubmit successful).