[frogr] Added files to allow building frogr as an xdg-app

[Mario Sanchez Prada <msanchez src gnome org>]

commit dfe1a6f4471ef8d1a93818f5cf3c944f94da4bfe
Author: Mario Sanchez Prada <msanchez gnome org>
Date:   Sat Apr 23 09:13:57 2016 +0100

    Added files to allow building frogr as an xdg-app
    
    This is not part of the distribution tarball, but just the
    needed files and instructions to allow building frogr as an
    xdg-app, useful for testing and developing purposes.

 xdg-app/README.md            |   64 ++++++++++++++++++++++++++++++++++++++++++
 xdg-app/org.gnome.Frogr.json |   43 ++++++++++++++++++++++++++++
 2 files changed, 107 insertions(+), 0 deletions(-)
---
diff --git a/xdg-app/README.md b/xdg-app/README.md
new file mode 100644
index 0000000..e7c8646
--- /dev/null
+++ b/xdg-app/README.md
@@ -0,0 +1,64 @@
+Frogr as an xdg-app
+===================
+
+This directory contains the relevant files to build frogr as an xdg-app.
+
+Requirements:
+------------
+
+  * xdg-app >= 0.5
+  * xdg-app-builder >= 0.5
+  * appstream-composer (automatically run by xdg-app-builder)
+  * org.gnome and org.freedesktop Platform and Sdk runtimes
+
+Instructions:
+-------------
+
+(1) Install the xdg-app repository for GNOME nightly:
+```
+  wget -O - http://sdk.gnome.org/apt/debian/conf/alexl.gpg.key|sudo apt-key add -
+  xdg-app --user remote-add --gpg-key=nightly.gpg gnome-nightly http://sdk.gnome.org/nightly/repo
+```
+(2) Install the required runtimes
+```
+  xdg-app --user install gnome-nightly org.gnome.Platform
+  xdg-app --user install gnome-nightly org.gnome.Sdk
+  xdg-app --user install gnome-nightly org.freedesktop.Platform
+  xdg-app --user install gnome-nightly org.freedesktop.Sdk
+```
+(3) Build frogr From this directory:
+```
+  xdg-app-builder --repo=repo frogr.appdir org.gnome.Frogr.json
+```
+(4) Add a remote to your local repo and install it:
+```
+  xdg-app --user remote-add --no-gpg-verify frogr-repo repo
+  xdg-app --user install frogr-repo org.gnome.Frogr
+```
+(5) Run frogr as an xdg-app:
+```
+  xdg-app run org.gnome.Frogr
+```
+
+Note that if you do further changes in the `appdir` (e.g. to the metadata), you'll need to re-publish it in 
your local repo and update before running it again:
+```
+  xdg-app build-export repo frogr.appdir
+  xdg-app --user update org.gnome.Frogr
+```
+
+Last, you can bundle frogr to a file with the `build-bundle` subcommand:
+```
+  xdg-app build-bundle repo frogr.bundle org.gnome.Frogr
+
+Known Issues
+------------
+
+For frogr to be useful, it needs to be able to launch your default browser to authorize your flickr account, 
which won't work at the moment since gtk_show_uri() from inside an xdg-app won't be able to do that until 
there's a Portal for it.
+
+As a workaround, you can use your distribution's version of frogr to authenticate it from a normal session 
and then copy the accounts.xml file over to xdg-app's realms:
+
+```
+  $ frogr # launch frogr from commandline outside xdg-app, and authorize it
+  $ cp ~/.config/frogr/accounts.xml ~/.var/app/org.gnome.Frogr/config/frogr
+  $ xdg-app run org.gnome.Frogr  # Now frogr should connect to your account
+```
diff --git a/xdg-app/org.gnome.Frogr.json b/xdg-app/org.gnome.Frogr.json
new file mode 100644
index 0000000..5766c5f
--- /dev/null
+++ b/xdg-app/org.gnome.Frogr.json
@@ -0,0 +1,43 @@
+{
+    "app-id": "org.gnome.Frogr",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "frogr",
+    "rename-appdata-file": "frogr.appdata.xml",
+    "rename-desktop-file": "frogr.desktop",
+    "tags": ["nightly"],
+    "desktop-file-name-prefix": "(Nightly) ",
+    "finish-args": [
+        /* X11 + XShm access */
+        "--share=ipc", "--socket=x11",
+        /* Wayland access */
+        "--socket=wayland",
+        /* Needs to talk to the network: */
+        "--share=network",
+        /* Needed for frogr to access your home directory */
+        "--filesystem=home",
+        /* Needed for dconf to work */
+        "--filesystem=xdg-run/dconf", "--filesystem=~/.config/dconf:ro",
+        "--talk-name=ca.desrt.dconf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+    ],
+    "build-options" : {
+        "cflags": "-O2 -g",
+        "cxxflags": "-O2 -g",
+        "env": {
+            "V": "1"
+        }
+    },
+    "cleanup": [],
+    "modules": [
+        {
+            "name": "frogr",
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "git://git.gnome.org/frogr"
+                }
+            ]
+        }
+    ]
+}