Get rid of the 'release build' concept

Currently all revisions in versions.yml except HEAD are considered to
be 'release' builds and are treated slightly differently from the
other revisions. This change removes the distinction:
- The suffix '-HEAD' is now added to package names when building the
  HEAD revision
- The version name for HEAD builds is no longer generated from the
  current date and time
- The file llvm-index.txt is no longer created for non-HEAD builds (we
  don't use it for anything)

Author: miyuki

scripts/config.py

@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import argparse
-import datetime
 import enum
 import logging
 import os
@@ -406,24 +405,14 @@ def _fill_inferred(self):
         self.llvm_repo_dir = join(self.repos_dir, 'llvm.git')
         self.newlib_repo_dir = join(self.repos_dir, 'newlib.git')
         self.cmake_generator = 'Ninja' if self.use_ninja else 'Unix Makefiles'
-        self.release_mode = self.revision != 'HEAD'
-        if self.release_mode:
-            version_suffix = '-' + self.revision
-            self.version_string = self.revision
-        else:
-            version_suffix = ''
-            now = datetime.datetime.now()
-            self.version_string = now.strftime('%Y-%m-%d-%H:%M:%S')
+        self.version_string = self.revision
         self.skip_reconfigure = self.build_mode == BuildMode.INCREMENTAL
-        product_name = 'LLVMEmbeddedToolchainForArm'
-        self.bin_package_base_name = product_name + version_suffix
-        self.src_package_base_name = product_name + version_suffix + '-src'
-        self.target_llvm_dir = join(
-            self.install_dir,
-            '{}-{}'.format(product_name, self.revision))
-        self.install_src_subdir = join(
-            self.install_dir,
-            '{}-{}-src'.format(product_name, self.revision))
+        bin_name = 'LLVMEmbeddedToolchainForArm-{}'.format(self.revision)
+        src_name = bin_name + '-src'
+        self.bin_package_base_name = bin_name
+        self.src_package_base_name = src_name
+        self.target_llvm_dir = join(self.install_dir, bin_name)
+        self.install_src_subdir = join(self.install_dir, src_name)
         if self.is_cross_compiling:
             self.native_llvm_build_dir = join(self.build_dir, 'native-llvm')
             self.native_llvm_dir = join(self.install_dir, 'native-llvm')

scripts/make.py

@@ -119,18 +119,6 @@ def _cmake_build(self, build_dir: str, target: str = None) -> None:
         except subprocess.CalledProcessError as ex:
             raise util.ToolchainBuildError from ex
 
-    def _write_llvm_index(self) -> None:
-        """Record the list of files and links installed by Clang."""
-        flist = []
-        install_dir = self.cfg.target_llvm_dir
-        for root, _, files in os.walk(install_dir):
-            for fname in files:
-                full_path = os.path.abspath(os.path.join(root, fname))
-                if os.path.isfile(full_path) or os.path.islink(full_path):
-                    flist.append(os.path.relpath(full_path, install_dir))
-        util.write_lines(sorted(flist),
-                         os.path.join(self.cfg.build_dir, 'llvm-index.txt'))
-
     def _prepare_build_dir(self, build_dir):
         if (self.cfg.build_mode == config.BuildMode.REBUILD
                 and os.path.exists(build_dir)):
@@ -265,9 +253,6 @@ def build_clang(self) -> None:
             else:
                 if cfg.verbose:
                     logging.info('Skipping the copying Mingw-w64 runtime DLLs')
-        # Record the list of files and links installed by clang
-        if cfg.release_mode:
-            self._write_llvm_index()
 
     def _get_common_cmake_defs_for_llvm(self) -> Dict[str, str]:
         """Return common CMake definitions used for building LLVM."""