Merge pull request #4300 from priankakariatyml:ios-text-cocoapods-force-load

PiperOrigin-RevId: 527932547
2023-04-28 11:06:44 -07:00
parent 3dce259bf6 261e02e491
commit 2bb1b454ea
12 changed files with 543 additions and 7 deletions
@@ -0,0 +1,53 @@
+# Copyright 2023 The MediaPipe Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""MediaPipe Task Library Helper Rules for iOS"""
+
+MPP_TASK_MINIMUM_OS_VERSION = "11.0"
+
+# When the static framework is built with bazel, the all header files are moved
+# to the "Headers" directory with no header path prefixes. This auxiliary rule
+# is used for stripping the path prefix to the C/iOS API header files included by
+# other C/iOS API header files.
+# In case of C header files, includes start with a keyword of "#include'.
+# Imports in iOS header files start with a keyword of '#import'.
+def strip_api_include_path_prefix(name, hdr_labels, prefix = ""):
+    """Create modified header files with the import path stripped out.
+
+    Args:
+      name: The name to be used as a prefix to the generated genrules.
+      hdr_labels: List of header labels to strip out the include path. Each
+          label must end with a colon followed by the header file name.
+      prefix: Optional prefix path to prepend to the header inclusion path.
+    """
+    for hdr_label in hdr_labels:
+        hdr_filename = hdr_label.split(":")[-1]
+
+        # The last path component of iOS header files is sources/some_file.h
+        # Hence it wiill contain a '/'. So the string can be split at '/' to get
+        # the header file name.
+        if "/" in hdr_filename:
+            hdr_filename = hdr_filename.split("/")[-1]
+
+        hdr_basename = hdr_filename.split(".")[0]
+        native.genrule(
+            name = "{}_{}".format(name, hdr_basename),
+            srcs = [hdr_label],
+            outs = [hdr_filename],
+            cmd = """
+            sed 's|#\\([a-z]*\\) ".*/\\([^/]\\{{1,\\}}\\.h\\)"|#\\1 "{}\\2"|'\
+            "$(location {})"\
+            > "$@"
+            """.format(prefix, hdr_label),
+        )