[tensorflow] Add C port

ports/tensorflow-cc/CONTROL

@@ -1,4 +1,6 @@
 Source: tensorflow-cc
 Version: 2.3.1
-Description: Library for computation using data flow graphs for scalable machine learning
+Port-Version: 1
+Homepage: https://github.com/tensorflow/tensorflow
+Description: Library for computation using data flow graphs for scalable machine learning (C++ API version)
 Supports: !(x86|arm|uwp)

ports/tensorflow-common/CONTROL

@@ -0,0 +1,6 @@
+Source: tensorflow-common
+Version: 2.3.1
+Port-Version: 0
+Homepage: https://github.com/tensorflow/tensorflow
+Description: This meta package holds common files for the C [tensorflow] and the C++ [tensorflow-cc] API version of TensorFlow but is not installable on its own.
+Supports: false

ports/tensorflow-cc/convert_lib_params_linux.py → ports/tensorflow-common/convert_lib_params_linux.py

@@ -1,8 +1,9 @@
 import sys
 
 version = sys.argv[1]
+lib_suffix = "" if len(sys.argv) < 3 else sys.argv[2]
 
-with open(f"libtensorflow_cc.a.{version}-2.params", "w") as f_out:
+with open(f"libtensorflow{lib_suffix}.a.{version}-2.params", "w") as f_out:
     parts = []
     with open(f"libtensorflow_framework.so.{version}-2.params", "r") as f_in:
         skip_next = False
@@ -16,7 +17,7 @@
                 f_out.write(line)
                 parts.append(line)
     parts = set(parts)
-    with open(f"libtensorflow_cc.so.{version}-2.params", "r") as f_in:
+    with open(f"libtensorflow{lib_suffix}.so.{version}-2.params", "r") as f_in:
         skip_next = False
         for line in f_in:
             if skip_next:

ports/tensorflow-cc/convert_lib_params_windows.py → ports/tensorflow-common/convert_lib_params_windows.py

@@ -1,11 +1,13 @@
 import os
 import sys
 
+lib_suffix = "" if len(sys.argv) < 2 else sys.argv[1]
+
 file_no = 1
-with open("tensorflow_cc.dll-2.params", "r") as f_in:
+with open(f"tensorflow{lib_suffix}.dll-2.params", "r") as f_in:
     lib_name = None
     acc_size = 0
-    f_out = open("tensorflow_cc.lib-2.params-part1", "w")
+    f_out = open(f"tensorflow{lib_suffix}.lib-2.params-part1", "w")
     for line in f_in:
         if line.startswith("/OUT:"):
             lib_name = line
@@ -18,10 +20,9 @@
                 # we need to split the library if it is >4GB, because it's not supported even on x64 Windows
                 f_out.close()
                 file_no += 1
-                f_out = open(f"tensorflow_cc.lib-2.params-part{file_no}", "w")
+                f_out = open(f"tensorflow{lib_suffix}.lib-2.params-part{file_no}", "w")
                 acc_size = 0
                 f_out.write(lib_name.replace(".dll", f"-part{file_no}.lib"))
             acc_size += size
             f_out.write(line)
     f_out.close()
-

ports/tensorflow-cc/fix-linux-build.patch → ports/tensorflow-common/fix-linux-build.patch

@@ -62,3 +62,16 @@ diff --git a/tensorflow/core/kernels/data/experimental/snapshot_dataset_op.cc b/
  // ==== Snapshot Implementation ====
 
  /* The current snapshot on-disk layout is as follows:
+
+diff --git a/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc b/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
+--- a/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
++++ b/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
+@@ -52,6 +52,8 @@
+ /* static */ constexpr const char* const
+     DataServiceDatasetOp::kMaxOutstandingRequests;
+ /* static */ constexpr const char* const
++    DataServiceDatasetOp::kTaskRefreshIntervalHintMs;
++/* static */ constexpr const char* const
+     DataServiceDatasetOp::kIterationCounter;
+ /* static */ constexpr const char* const DataServiceDatasetOp::kOutputTypes;
+ /* static */ constexpr const char* const DataServiceDatasetOp::kOutputShapes;

ports/tensorflow-cc/generate_static_link_cmd_linux.py → ports/tensorflow-common/generate_static_link_cmd_linux.py

@@ -1,10 +1,11 @@
 import re
 import sys
 
+lib_suffix = "" if len(sys.argv) < 3 else sys.argv[2]
 with open(sys.argv[1], "r") as f_in:
     with open("static_link.sh", "w") as f_out:
         p_cd = re.compile("^\\((cd .*) && \\\\$")
-        p_linker = re.compile("^\\s*(.+)gcc.+(@bazel-out\\S+libtensorflow_cc\\.so\\.\\d\\.\\d\\.\\d-2\\.params).*")
+        p_linker = re.compile("^\\s*(.+)gcc.+(@bazel-out\\S+libtensorflow" + lib_suffix + "\\.so\\.\\d\\.\\d\\.\\d-2\\.params).*")
         f_out.write("#!/bin/bash\n# note: ar/binutils version 2.27 required to support output files > 4GB\n")
         env = []
         for line in f_in:

ports/tensorflow-cc/generate_static_link_cmd_macos.py → ports/tensorflow-common/generate_static_link_cmd_macos.py

@@ -1,10 +1,11 @@
 import re
 import sys
 
+lib_suffix = "" if len(sys.argv) < 3 else sys.argv[2]
 with open(sys.argv[1], "r") as f_in:
     with open("static_link.sh", "w") as f_out:
         p_cd = re.compile("^\\((cd .*) && \\\\$")
-        p_linker1 = re.compile("^.*cc_wrapper.sh.+-shared.+-o (bazel-out\\S+libtensorflow_cc\\.\\d\\.\\d\\.\\d\\.dylib)")
+        p_linker1 = re.compile("^.*cc_wrapper.sh.+-shared.+-o (bazel-out\\S+libtensorflow" + lib_suffix + "\\.\\d\\.\\d\\.\\d\\.dylib)")
         p_linker2 = re.compile("^.*cc_wrapper.sh.+-shared.+-o (bazel-out\\S+libtensorflow_framework\\.\\d\\.\\d\\.\\d\\.dylib)")
         f_out.write("#!/bin/bash\n# note: ar/binutils version 2.27 required to support output files > 4GB\n")
         env = []
@@ -39,7 +40,7 @@
                         tmp = [t[16:] for t in tokens if t.startswith("-Wl,-force_load,")]
                         old = set(parts)
                         parts += [t for t in tmp if t not in old]
-                        line = f"libtool -static -o {m2.group(1).replace('_framework', '_cc').replace('.dylib', '.a')} {' '.join(parts)}\n"
+                        line = f"libtool -static -o {m2.group(1).replace('_framework', lib_suffix).replace('.dylib', '.a')} {' '.join(parts)}\n"
                         f_out.write(line)
                         break
                 else:

ports/tensorflow-cc/generate_static_link_cmd_windows.py → ports/tensorflow-common/generate_static_link_cmd_windows.py

@@ -2,10 +2,11 @@
 import re
 import sys
 
+lib_suffix = "" if len(sys.argv) < 3 else sys.argv[2]
 with open(sys.argv[1], "r") as f_in:
     with open("static_link.bat", "w") as f_out:
         p_setenv = re.compile("^\s*(SET .+=.*)$")
-        p_linker = re.compile(".+link\\.exe.+tensorflow_cc\\.dll-2\\.params.*")
+        p_linker = re.compile(".+link\\.exe.+tensorflow" + lib_suffix + "\\.dll-2\\.params.*")
         env = []
         for line in f_in:
             if line.startswith("cd"):
@@ -28,7 +29,7 @@
                                 t = t[:-len("link.exe")] + "lib.exe\""
                             elif t == "/DLL" or t.lower()[1:].startswith("defaultlib:") or t.lower()[1:].startswith("ignore") or t.startswith("/OPT:") or t.startswith("/DEF:") or t.startswith("/DEBUG:") or t.startswith("/INCREMENTAL:"):
                                 continue
-                            elif t[0] == '@' and t.endswith("tensorflow_cc.dll-2.params"):
+                            elif t[0] == '@' and t.endswith(f"tensorflow{lib_suffix}.dll-2.params"):
                                 t = t[:-len("dll-2.params")] + "lib-2.params-part1"
                                 params_file = t[1:-len("-part1")]
                             line += t + " "

ports/tensorflow-common/portfile.cmake

@@ -0,0 +1 @@
+message(FATAL_ERROR "This meta package holds common files for the C [tensorflow] and the C++ [tensorflow-cc] API version of TensorFlow but is not installable on its own.")