Add ios_multi_arch fatlib.

Fix #113

kiwixbuild/dependencies/ios_fat_lib.py

@@ -0,0 +1,52 @@
+import os
+
+from kiwixbuild.platforms import PlatformInfo
+from kiwixbuild.utils import pj, copy_tree, run_command
+from kiwixbuild._global import option
+from .base import (
+    Dependency,
+    NoopSource,
+    Builder as BaseBuilder)
+
+
+
+class IOSFatLib(Dependency):
+    name = "_ios_fat_lib"
+
+    Source = NoopSource
+
+    class Builder(BaseBuilder):
+
+        @classmethod
+        def get_dependencies(self, platfomInfo, alldeps):
+            base_target = option('target')
+            return [('iOS_{}'.format(arch), base_target) for arch in option('ios_arch')]
+
+        def _copy_headers(self, context):
+            plt = PlatformInfo.get_platform('iOS_{}'.format(option('ios_arch')[0]))
+            include_src = pj(plt.buildEnv.install_dir, 'include')
+            include_dst = pj(self.buildEnv.install_dir, 'include')
+            copy_tree(include_src, include_dst)
+
+        def _merge_libs(self, context):
+            lib_dirs = []
+            for arch in option('ios_arch'):
+                plt = PlatformInfo.get_platform('iOS_{}'.format(arch))
+                lib_dirs.append(pj(plt.buildEnv.install_dir, 'lib'))
+            libs = []
+            for f in os.listdir(lib_dirs[0]):
+                if os.path.islink(pj(lib_dirs[0], f)):
+                    continue
+                if f.endswith('.a') or f.endswith('.dylib'):
+                    libs.append(f)
+            os.makedirs(pj(self.buildEnv.install_dir, 'lib'), exist_ok=True)
+            command_tmp = "lipo -create {input} -output {output}"
+            for l in libs:
+                command = command_tmp.format(
+                    input=" ".join(pj(d, l) for d in lib_dirs),
+                    output=pj(self.buildEnv.install_dir, 'lib', l))
+                run_command(command, self.buildEnv.install_dir, context)
+
+        def build(self):
+            self.command('copy_headers', self._copy_headers)
+            self.command('merge_libs', self._merge_libs)