Build the kiwix-lib android "application" in kiwix-build.

This is not a real application as it is dependency for kiwix-android.
But it a app in the sens that it is packaged for android build system.

kiwixbuild/dependencies/kiwix_lib.py

@@ -1,8 +1,12 @@
+import shutil, os
+
 from .base import (
     Dependency,
     GitClone,
-    MesonBuilder)
+    MesonBuilder,
-from kiwixbuild._global import neutralEnv
+    GradleBuilder)
+from kiwixbuild.utils import pj, copy_tree
+from kiwixbuild._global import option, get_target_step, neutralEnv
 
 class Kiwixlib(Dependency):
     name = "kiwix-lib"
@@ -28,3 +32,56 @@ class Kiwixlib(Dependency):
             if self.buildEnv.platformInfo.build == 'android':
                 return 'shared'
             return super().library_type
+
+
+class KiwixlibApp(Dependency):
+    name = "kiwix-lib-app"
+
+    Source = Kiwixlib.Source
+
+    class Builder(GradleBuilder):
+        dependencies = ["kiwix-lib"]
+        gradle_target = "assembleRelease"
+
+        @classmethod
+        def get_dependencies(cls, platformInfo, allDeps):
+            if not allDeps:
+                return super().get_dependencies(platformInfo, allDeps)
+            else:
+                deps = [('android_{}'.format(arch), 'kiwix-lib')
+                    for arch in option('android_arch')]
+                return deps
+
+        def _configure(self, context):
+            try:
+                shutil.rmtree(self.build_path)
+            except FileNotFoundError:
+                pass
+            if not os.path.exists(self.build_path):
+                shutil.copytree(pj(self.source_path, 'android-kiwix-lib-publisher'), self.build_path, symlinks=True)
+            for arch in option('android_arch'):
+                try:
+                    kiwix_builder = get_target_step('kiwix-lib', 'android_{}'.format(arch))
+                except KeyError:
+                    pass
+                else:
+                    copy_tree(pj(kiwix_builder.buildEnv.install_dir, 'kiwix-lib'),
+                              pj(self.build_path, 'kiwixLibAndroid', 'src', 'main'))
+
+#            The ICU dat file should be embedded with the kiwix-lib application
+#            but for now it is package with kiwix-android app and use there.
+#            We must fix this at a time (before we update the icu version).
+#            os.makedirs(
+#                pj(self.build_path, 'app', 'src', 'main', 'assets', 'icu'),
+#                exist_ok=True)
+#            for arch in option('android_arch'):
+#                try:
+#                    kiwix_builder = get_target_step('kiwix-lib', 'android_{}'.format(arch))
+#                except KeyError:
+#                    pass
+#                else:
+#                    shutil.copy2(pj(kiwix_builder.buildEnv.install_dir, 'share', 'icu', '58.2',
+#                                    'icudt58l.dat'),
+#                                 pj(self.build_path, 'app', 'src', 'main', 'assets',
+#                                    'icu', 'icudt58l.dat'))
+#                    break

kiwixbuild/platforms/android.py

@@ -131,7 +131,7 @@ class Android(MetaPlatformInfo):
         return ['android_{}'.format(arch) for arch in option('android_arch')]
 
     def add_targets(self, targetName, targets):
-        if targetName not in ('kiwix-android', 'kiwix-android-custom'):
+        if targetName not in ('kiwix-android', 'kiwix-android-custom', 'kiwix-lib-app'):
             return super().add_targets(targetName, targets)
         else:
             return AndroidPlatformInfo.add_targets(self, targetName, targets)