nitc/android: sign and align the APK file in release mode

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/src/compiler/android_platform.nit b/src/compiler/android_platform.nit
index b4e3cdf..9e47ee5 100644 (file)
--- a/src/compiler/android_platform.nit
+++ b/src/compiler/android_platform.nit
@@ -291,12 +291,40 @@ $(call import-module,android/native_app_glue)
                # Move the apk to the target
                var outname = outfile(compiler.mainmodule)
 
-               var src_apk_suffix
                if release then
-                       src_apk_suffix = "release-unsigned"
-               else src_apk_suffix = "debug"
+                       var apk_path = "{android_project_root}/bin/{compiler.mainmodule.name}-release-unsigned.apk"
 
-               toolcontext.exec_and_check(["mv", "{android_project_root}/bin/{compiler.mainmodule.name}-{src_apk_suffix}.apk", outname], "Android project error")
+                       # Sign APK
+                       var keystore_path= "KEYSTORE".environ
+                       var key_alias= "KEY_ALIAS".environ
+                       var tsa_server= "TSA_SERVER".environ
+
+                       if key_alias.is_empty then
+                               toolcontext.fatal_error(null,
+                                       "Fatal Error: the environment variable `KEY_ALIAS` must be set to use the `--release` option on Android projects.")
+                       end
+
+                       args = ["jarsigner", "-sigalg", "MD5withRSA", "-digestalg", "SHA1", apk_path, key_alias]
+
+                       ## Use a custom keystore
+                       if not keystore_path.is_empty then args.add_all(["-keystore", keystore_path])
+
+                       ## Use a TSA server
+                       if not tsa_server.is_empty then args.add_all(["-tsa", tsa_server])
+
+                       toolcontext.exec_and_check(args, "Android project error")
+
+                       # Clean output file
+                       if outname.to_path.exists then outname.to_path.delete
+
+                       # Align APK
+                       args = ["zipalign", "4", apk_path, outname]
+                       toolcontext.exec_and_check(args, "Android project error")
+               else
+                       # Move to the expected output path
+                       args = ["mv", "{android_project_root}/bin/{compiler.mainmodule.name}-debug.apk", outname]
+                       toolcontext.exec_and_check(args, "Android project error")
+               end
        end
 end