[gnome-sdk-images/wip/tvb/aarch64: 4/4] Generate metadata and org.gnome.Sdk.json

[Tristan Van Berkom <tvb src gnome org>]

commit dde5b0149a3060f529e8ad161062d5e8d4d042d3
Author: Tristan Van Berkom <tristan vanberkom codethink co uk>
Date:   Mon Apr 25 20:23:10 2016 +0100

    Generate metadata and org.gnome.Sdk.json
    
    Allows us to keep some build configurations in the same place
    so they do not have to be duplicated.
    
    Now set the architecture and versions directly in the Makefile

 Makefile                                    |   21 ++++++++++++++++++++-
 metadata.platform => metadata.platform.in   |    4 ++--
 metadata.sdk => metadata.sdk.in             |    4 ++--
 org.gnome.Sdk.json => org.gnome.Sdk.json.in |    4 ++--
 4 files changed, 26 insertions(+), 7 deletions(-)
---
diff --git a/Makefile b/Makefile
index 231a00a..9871446 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,17 @@
-all: repo org.gnome.Sdk.json
+# Modify build architecture and version here.
+#
+# Alternatively you can build with 'make SDK_ARCH=aarch64 SDK_VERSION=1.6' but
+# it will only be taken into account when generating files the first time.
+SDK_ARCH            ?= x86_64
+SDK_BRANCH          ?= master
+SDK_RUNTIME_VERSION ?= 1.4
+
+SUBST_FILES=\
+       metadata.sdk            \
+       metadata.platform       \
+       org.gnome.Sdk.json
+
+all: repo org.gnome.Sdk.json ${SUBST_FILES}
        rm -rf sdk
        xdg-app-builder --ccache --require-changes --repo=repo --subject="build of org.gnome.Sdk, `date`" 
${EXPORT_ARGS} sdk org.gnome.Sdk.json
        rm -rf sdk
@@ -8,3 +21,9 @@ repo:
 
 check:
        json-glib-validate org.gnome.Sdk.json
+
+%:%.in
+       sed -e 's/@@SDK_ARCH@@/${SDK_ARCH}/g' \
+           -e 's/@@SDK_BRANCH@@/${SDK_BRANCH}/g' \
+           -e 's/@@SDK_RUNTIME_VERSION@@/${SDK_RUNTIME_VERSION}/g' \
+           $< > $  tmp && mv $  tmp $@ || exit 1
diff --git a/metadata.platform b/metadata.platform.in
similarity index 83%
rename from metadata.platform
rename to metadata.platform.in
index 4ca8c46..11c7929 100644
--- a/metadata.platform
+++ b/metadata.platform.in
@@ -1,7 +1,7 @@
 [Runtime]
 name=org.gnome.Platform
-runtime=org.gnome.Platform/x86_64/master
-sdk=org.gnome.Sdk/x86_64/master
+runtime=org.gnome.Platform/@@SDK_ARCH@@/@@SDK_BRANCH@@
+sdk=org.gnome.Sdk/@@SDK_ARCH@@/@@SDK_BRANCH@@
 
 [Extension org.freedesktop.Platform.GL]
 version=1.4
diff --git a/metadata.sdk b/metadata.sdk.in
similarity index 83%
rename from metadata.sdk
rename to metadata.sdk.in
index 280d014..8eb9f6d 100644
--- a/metadata.sdk
+++ b/metadata.sdk.in
@@ -1,7 +1,7 @@
 [Runtime]
 name=org.gnome.Sdk
-runtime=org.gnome.Platform/x86_64/master
-sdk=org.gnome.Sdk/x86_64/master
+runtime=org.gnome.Platform/@@SDK_ARCH@@/@@SDK_BRANCH@@
+sdk=org.gnome.Sdk/@@SDK_ARCH@@/@@SDK_BRANCH@@
 
 [Extension org.freedesktop.Platform.GL]
 version=1.4
diff --git a/org.gnome.Sdk.json b/org.gnome.Sdk.json.in
similarity index 99%
rename from org.gnome.Sdk.json
rename to org.gnome.Sdk.json.in
index fc864cd..6bb1d29 100644
--- a/org.gnome.Sdk.json
+++ b/org.gnome.Sdk.json.in
@@ -2,10 +2,10 @@
     "build-runtime": true,
     "id": "org.gnome.Sdk",
     "id-platform": "org.gnome.Platform",
-    "branch": "master",
+    "branch": "@@SDK_BRANCH@@",
     "runtime": "org.freedesktop.Platform",
     "sdk": "org.freedesktop.Sdk",
-    "runtime-version": "1.4",
+    "runtime-version": "@@SDK_RUNTIME_VERSION@@",
     "writable-sdk": true,
     "sdk-extensions": ["org.freedesktop.Sdk.Debug", "org.freedesktop.Sdk.Locale"],
     "platform-extensions": [ "org.freedesktop.Platform.Locale"],