diff options
Diffstat (limited to 'llvm_extra/create_ebuild_file.py')
| -rwxr-xr-x | llvm_extra/create_ebuild_file.py | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/llvm_extra/create_ebuild_file.py b/llvm_extra/create_ebuild_file.py new file mode 100755 index 00000000..459e702a --- /dev/null +++ b/llvm_extra/create_ebuild_file.py @@ -0,0 +1,156 @@ +#!/usr/bin/env python2 + +# Copyright 2018 The Chromium OS Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +from __future__ import print_function + +import os +import sys + +# This script takes an existing host llvm compiler ebuild and +# creates another build that should be installable in a prefixed location. +# The script patches a few lines in the llvm ebuild to make that happen. +# +# Since the script is based on the current llvm ebuild patterns, +# it may need to be updated if those patterns change. +# +# This script should normally be invoked by the shell script +# create_llvm_extra.sh . + +""" +Below is an example of the expected diff of the newly generated ebuild with +some explanation of the diffs. + +diff -Nuar llvm-pre7.0_pre335547_p20180529.ebuild newly-created-file.ebuild +--- llvm-7.0_pre331547_p20180529-r8.ebuild ++++ newly-created-file.ebuild + +@@ -60,9 +60,9 @@ EGIT_REPO_URIS=( + fi + + LICENSE="UoI-NCSA" +-SLOT="0/${PV%%_*}" ++SLOT="${PV%%_p[[:digit:]]*}" # Creates a unique slot so that multiple copies + of the new build can be installed. + + KEYWORDS="-* amd64" + + # Change USE flags to match llvm ebuild installtion. To see the set of flags + enabled in llvm compiler ebuild, run $ sudo emerge -pv llvm + +-IUSE="debug +default-compiler-rt +default-libcxx doc libedit +libffi multitarget ++IUSE="debug +default-compiler-rt +default-libcxx doc libedit +libffi +multitarget + ncurses ocaml python llvm-next llvm-tot test xml video_cards_radeon" + + COMMON_DEPEND=" +@@ -145,6 +145,7 @@ pkg_pretend() { + } + + pkg_setup() { + # This Change is to install the files in $PREFIX. ++ export PREFIX="/usr/${PN}/${SLOT}" + pkg_pretend + } + +@@ -272,13 +273,13 @@ + sed -e "/RUN/s/-warn-error A//" -i test/Bindings/OCaml/*ml || die + + # Allow custom cmake build types (like 'Gentoo') + # Convert use of PN to llvm in epatch commands. +- epatch "${FILESDIR}"/cmake/${PN}-3.8-allow_custom_cmake_build_types.patch ++ epatch "${FILESDIR}"/cmake/llvm-3.8-allow_custom_cmake_build_types.patch + + # crbug/591436 + epatch "${FILESDIR}"/clang-executable-detection.patch + + # crbug/606391 +- epatch "${FILESDIR}"/${PN}-3.8-invocation.patch ++ epatch "${FILESDIR}"/llvm-3.8-invocation.patch + +@@ -411,11 +412,14 @@ src_install() { + /usr/include/llvm/Config/llvm-config.h + ) + ++ MULTILIB_CHOST_TOOLS=() # No need to install any multilib tools/headers. ++ MULTILIB_WRAPPED_HEADERS=() + multilib-minimal_src_install + } + + multilib_src_install() { + cmake-utils_src_install ++ return # No need to install any wrappers. + + local wrapper_script=clang_host_wrapper + cat "${FILESDIR}/clang_host_wrapper.header" \ +@@ -434,6 +438,7 @@ multilib_src_install() { + } + + multilib_src_install_all() { ++ return # No need to install common multilib files. + insinto /usr/share/vim/vimfiles + doins -r utils/vim/*/. + # some users may find it useful +""" + +def process_line(line, text): + # Process the line and append to the text we want to generate. + # Check if line has any patterns that we want to handle. + newline = line.strip() + if newline.startswith('#'): + # Do not process comment lines. + text.append(line) + elif line.startswith('SLOT='): + # Change SLOT to "${PV%%_p[[:digit:]]*}" + SLOT_STRING='SLOT="${PV%%_p[[:digit:]]*}"\n' + text.append(SLOT_STRING) + elif line.startswith('IUSE') and 'multitarget' in line: + # Enable multitarget USE flag. + newline = line.replace('multitarget', '+multitarget') + text.append(newline) + elif line.startswith('pkg_setup()'): + # Setup PREFIX. + text.append(line) + text.append('\texport PREFIX="/usr/${PN}/${SLOT}"\n') + elif line.startswith('multilib_src_install_all()'): + text.append(line) + # Do not install any common files. + text.append('\treturn\n') + elif 'epatch ' in line: + # Convert any $PN or ${PN} in epatch files to llvm. + newline = line.replace('$PN', 'llvm') + newline = newline.replace('${PN}', 'llvm') + text.append(newline) + elif 'multilib-minimal_src_install' in line: + # Disable MULTILIB_CHOST_TOOLS and MULTILIB_WRAPPED_HEADERS + text.append('\tMULTILIB_CHOST_TOOLS=()\n') + text.append('\tMULTILIB_WRAPPED_HEADERS=()\n') + text.append(line) + elif 'cmake-utils_src_install' in line: + text.append(line) + # Do not install any wrappers. + text.append('\treturn\n') + else: + text.append(line) + + +def main(): + if len(sys.argv) != 3: + filename = os.path.basename(__file__) + print ('Usage: ', filename,' <input.ebuild> <output.ebuild>') + return 1 + + text = [] + with open(sys.argv[1], 'r') as infile: + for line in infile: + process_line(line, text) + + with open(sys.argv[2], 'w') as outfile: + outfile.write("".join(text)) + + return 0 + + +if __name__== "__main__": + sys.exit(main()) |