[gitg] Add platform support for getting user home directory

[Jesse van den Kieboom <jessevdk src gnome org>]

commit a0d448304ddd2165c8cce79985b32a17b36e98f8
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Tue Dec 22 09:56:05 2015 +0100

    Add platform support for getting user home directory

 libgitg/gitg-platform-support-osx.c   |   28 ++++++++++++++++++++++++++++
 libgitg/gitg-platform-support-win32.c |    7 +++++++
 libgitg/gitg-platform-support.c       |   28 ++++++++++++++++++++++++++++
 libgitg/gitg-platform-support.h       |    2 ++
 vapi/gitg-platform-support.vapi       |    1 +
 5 files changed, 66 insertions(+), 0 deletions(-)
---
diff --git a/libgitg/gitg-platform-support-osx.c b/libgitg/gitg-platform-support-osx.c
index 20e385f..aa224da 100644
--- a/libgitg/gitg-platform-support-osx.c
+++ b/libgitg/gitg-platform-support-osx.c
@@ -26,6 +26,9 @@
 #include <gdk/gdkquartz.h>
 #include <gio/gunixinputstream.h>
 
+#include <sys/types.h>
+#include <pwd.h>
+
 gboolean
 gitg_platform_support_use_native_window_controls (GdkDisplay *display)
 {
@@ -190,4 +193,29 @@ gitg_platform_support_get_data_dir (void)
        return g_strdup (GITG_DATADIR);
 }
 
+gchar *
+gitg_platform_support_get_user_home_dir (const gchar *name)
+{
+       struct passwd *pwd;
+
+       if (name == NULL)
+       {
+               name = g_get_user_name ();
+       }
+
+       if (name == NULL)
+       {
+               return NULL;
+       }
+
+       pwd = getpwnam (name);
+
+       if (pwd == NULL)
+       {
+               return NULL;
+       }
+
+       return g_strdup (pwd->pw_dir);
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support-win32.c b/libgitg/gitg-platform-support-win32.c
index a2bcb85..11a3b7d 100644
--- a/libgitg/gitg-platform-support-win32.c
+++ b/libgitg/gitg-platform-support-win32.c
@@ -100,4 +100,11 @@ gitg_platform_support_get_data_dir (void)
        return data_dir;
 }
 
+gchar *
+gitg_platform_support_get_user_home_dir (const gchar *name)
+{
+       // TODO
+       return NULL;
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support.c b/libgitg/gitg-platform-support.c
index 6bea618..483b798 100644
--- a/libgitg/gitg-platform-support.c
+++ b/libgitg/gitg-platform-support.c
@@ -25,6 +25,9 @@
 
 #include <gio/gunixinputstream.h>
 
+#include <sys/types.h>
+#include <pwd.h>
+
 gboolean
 gitg_platform_support_use_native_window_controls (GdkDisplay *display)
 {
@@ -117,4 +120,29 @@ gitg_platform_support_get_data_dir (void)
        return g_strdup (GITG_DATADIR);
 }
 
+gchar *
+gitg_platform_support_get_user_home_dir (const gchar *name)
+{
+       struct passwd *pwd;
+
+       if (name == NULL)
+       {
+               name = g_get_user_name ();
+       }
+
+       if (name == NULL)
+       {
+               return NULL;
+       }
+
+       pwd = getpwnam (name);
+
+       if (pwd == NULL)
+       {
+               return NULL;
+       }
+
+       return g_strdup (pwd->pw_dir);
+}
+
 // ex:ts=4 noet
diff --git a/libgitg/gitg-platform-support.h b/libgitg/gitg-platform-support.h
index aacc29c..266db4d 100644
--- a/libgitg/gitg-platform-support.h
+++ b/libgitg/gitg-platform-support.h
@@ -50,6 +50,8 @@ gchar        *gitg_platform_support_get_locale_dir (void);
 
 gchar        *gitg_platform_support_get_data_dir (void);
 
+gchar        *gitg_platform_support_get_user_home_dir (const gchar *name);
+
 #endif /* __GITG_PLATFORM_SUPPORT_H__ */
 
 // ex:ts=4 noet
diff --git a/vapi/gitg-platform-support.vapi b/vapi/gitg-platform-support.vapi
index 18e1c5f..5071a95 100644
--- a/vapi/gitg-platform-support.vapi
+++ b/vapi/gitg-platform-support.vapi
@@ -18,5 +18,6 @@ namespace Gitg
                public static string get_lib_dir();
                public static string get_locale_dir();
                public static string get_data_dir();
+               public static string? get_user_home_dir(string? user = null);
        }
 }