The Meson Build System
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347 lines
14 KiB
347 lines
14 KiB
# Copyright 2017 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import argparse |
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import gzip |
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import os |
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import sys |
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import shlex |
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import shutil |
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import subprocess |
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import tarfile |
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import tempfile |
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import hashlib |
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from glob import glob |
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from pathlib import Path |
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from mesonbuild.environment import detect_ninja |
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from mesonbuild.mesonlib import (MesonException, RealPathAction, quiet_git, |
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windows_proof_rmtree, setup_vsenv) |
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from mesonbuild.msetup import add_arguments as msetup_argparse |
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from mesonbuild.wrap import wrap |
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from mesonbuild import mlog, build, coredata |
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from .scripts.meson_exe import run_exe |
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archive_choices = ['gztar', 'xztar', 'zip'] |
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archive_extension = {'gztar': '.tar.gz', |
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'xztar': '.tar.xz', |
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'zip': '.zip'} |
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def add_arguments(parser): |
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parser.add_argument('-C', dest='wd', action=RealPathAction, |
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help='directory to cd into before running') |
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parser.add_argument('--allow-dirty', action='store_true', |
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help='Allow even when repository contains uncommitted changes.') |
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parser.add_argument('--formats', default='xztar', |
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help='Comma separated list of archive types to create. Supports xztar (default), gztar, and zip.') |
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parser.add_argument('--include-subprojects', action='store_true', |
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help='Include source code of subprojects that have been used for the build.') |
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parser.add_argument('--no-tests', action='store_true', |
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help='Do not build and test generated packages.') |
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def create_hash(fname): |
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hashname = fname + '.sha256sum' |
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m = hashlib.sha256() |
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m.update(open(fname, 'rb').read()) |
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with open(hashname, 'w', encoding='utf-8') as f: |
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# A space and an asterisk because that is the format defined by GNU coreutils |
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# and accepted by busybox and the Perl shasum tool. |
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f.write('{} *{}\n'.format(m.hexdigest(), os.path.basename(fname))) |
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def copy_git(src, distdir, revision='HEAD', prefix=None, subdir=None): |
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cmd = ['git', 'archive', '--format', 'tar', revision] |
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if prefix is not None: |
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cmd.insert(2, f'--prefix={prefix}/') |
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if subdir is not None: |
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cmd.extend(['--', subdir]) |
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with tempfile.TemporaryFile() as f: |
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subprocess.check_call(cmd, cwd=src, stdout=f) |
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f.seek(0) |
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t = tarfile.open(fileobj=f) # [ignore encoding] |
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t.extractall(path=distdir) |
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msg_uncommitted_changes = 'Repository has uncommitted changes that will not be included in the dist tarball' |
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def handle_dirty_opt(msg, allow_dirty: bool): |
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if allow_dirty: |
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mlog.warning(msg) |
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else: |
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mlog.error(msg + '\n' + 'Use --allow-dirty to ignore the warning and proceed anyway') |
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sys.exit(1) |
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return |
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def process_submodules(src, distdir, options): |
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module_file = os.path.join(src, '.gitmodules') |
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if not os.path.exists(module_file): |
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return |
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cmd = ['git', 'submodule', 'status', '--cached', '--recursive'] |
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modlist = subprocess.check_output(cmd, cwd=src, universal_newlines=True).splitlines() |
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for submodule in modlist: |
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status = submodule[:1] |
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sha1, rest = submodule[1:].split(' ', 1) |
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subpath = rest.rsplit(' ', 1)[0] |
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if status == '-': |
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mlog.warning(f'Submodule {subpath!r} is not checked out and cannot be added to the dist') |
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continue |
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elif status in {'+', 'U'}: |
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handle_dirty_opt(f'Submodule {subpath!r} has uncommitted changes that will not be included in the dist tarball', options.allow_dirty) |
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copy_git(os.path.join(src, subpath), distdir, revision=sha1, prefix=subpath) |
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def run_dist_scripts(src_root, bld_root, dist_root, dist_scripts, subprojects): |
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assert os.path.isabs(dist_root) |
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env = {} |
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env['MESON_DIST_ROOT'] = dist_root |
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env['MESON_SOURCE_ROOT'] = src_root |
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env['MESON_BUILD_ROOT'] = bld_root |
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for d in dist_scripts: |
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if d.subproject and d.subproject not in subprojects: |
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continue |
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subdir = subprojects.get(d.subproject, '') |
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env['MESON_PROJECT_DIST_ROOT'] = os.path.join(dist_root, subdir) |
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env['MESON_PROJECT_SOURCE_ROOT'] = os.path.join(src_root, subdir) |
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env['MESON_PROJECT_BUILD_ROOT'] = os.path.join(bld_root, subdir) |
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name = ' '.join(d.cmd_args) |
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print(f'Running custom dist script {name!r}') |
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try: |
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rc = run_exe(d, env) |
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if rc != 0: |
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sys.exit('Dist script errored out') |
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except OSError: |
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print(f'Failed to run dist script {name!r}') |
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sys.exit(1) |
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def git_root(src_root): |
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# Cannot use --show-toplevel here because git in our CI prints cygwin paths |
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# that python cannot resolve. Workaround this by taking parent of src_root. |
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prefix = quiet_git(['rev-parse', '--show-prefix'], src_root, check=True)[1].strip() |
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if not prefix: |
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return Path(src_root) |
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prefix_level = len(Path(prefix).parents) |
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return Path(src_root).parents[prefix_level - 1] |
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def is_git(src_root): |
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''' |
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Checks if meson.build file at the root source directory is tracked by git. |
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It could be a subproject part of the parent project git repository. |
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''' |
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return quiet_git(['ls-files', '--error-unmatch', 'meson.build'], src_root)[0] |
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def git_have_dirty_index(src_root): |
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'''Check whether there are uncommitted changes in git''' |
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ret = subprocess.call(['git', '-C', src_root, 'diff-index', '--quiet', 'HEAD']) |
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return ret == 1 |
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def process_git_project(src_root, distdir, options): |
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if git_have_dirty_index(src_root): |
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handle_dirty_opt(msg_uncommitted_changes, options.allow_dirty) |
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if os.path.exists(distdir): |
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windows_proof_rmtree(distdir) |
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repo_root = git_root(src_root) |
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if repo_root.samefile(src_root): |
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os.makedirs(distdir) |
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copy_git(src_root, distdir) |
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else: |
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subdir = Path(src_root).relative_to(repo_root) |
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tmp_distdir = distdir + '-tmp' |
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if os.path.exists(tmp_distdir): |
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windows_proof_rmtree(tmp_distdir) |
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os.makedirs(tmp_distdir) |
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copy_git(repo_root, tmp_distdir, subdir=str(subdir)) |
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Path(tmp_distdir, subdir).rename(distdir) |
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windows_proof_rmtree(tmp_distdir) |
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process_submodules(src_root, distdir, options) |
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def create_dist_git(dist_name, archives, src_root, bld_root, dist_sub, dist_scripts, subprojects, options): |
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distdir = os.path.join(dist_sub, dist_name) |
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process_git_project(src_root, distdir, options) |
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for path in subprojects.values(): |
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sub_src_root = os.path.join(src_root, path) |
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sub_distdir = os.path.join(distdir, path) |
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if os.path.exists(sub_distdir): |
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continue |
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if is_git(sub_src_root): |
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process_git_project(sub_src_root, sub_distdir, options) |
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else: |
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shutil.copytree(sub_src_root, sub_distdir) |
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run_dist_scripts(src_root, bld_root, distdir, dist_scripts, subprojects) |
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output_names = [] |
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for a in archives: |
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compressed_name = distdir + archive_extension[a] |
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shutil.make_archive(distdir, a, root_dir=dist_sub, base_dir=dist_name) |
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output_names.append(compressed_name) |
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windows_proof_rmtree(distdir) |
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return output_names |
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def is_hg(src_root): |
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return os.path.isdir(os.path.join(src_root, '.hg')) |
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def hg_have_dirty_index(src_root): |
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'''Check whether there are uncommitted changes in hg''' |
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out = subprocess.check_output(['hg', '-R', src_root, 'summary']) |
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return b'commit: (clean)' not in out |
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def create_dist_hg(dist_name, archives, src_root, bld_root, dist_sub, dist_scripts, options): |
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if hg_have_dirty_index(src_root): |
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handle_dirty_opt(msg_uncommitted_changes, options.allow_dirty) |
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if dist_scripts: |
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mlog.warning('dist scripts are not supported in Mercurial projects') |
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os.makedirs(dist_sub, exist_ok=True) |
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tarname = os.path.join(dist_sub, dist_name + '.tar') |
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xzname = tarname + '.xz' |
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gzname = tarname + '.gz' |
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zipname = os.path.join(dist_sub, dist_name + '.zip') |
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# Note that -X interprets relative paths using the current working |
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# directory, not the repository root, so this must be an absolute path: |
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# https://bz.mercurial-scm.org/show_bug.cgi?id=6267 |
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# |
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# .hg[a-z]* is used instead of .hg* to keep .hg_archival.txt, which may |
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# be useful to link the tarball to the Mercurial revision for either |
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# manual inspection or in case any code interprets it for a --version or |
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# similar. |
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subprocess.check_call(['hg', 'archive', '-R', src_root, '-S', '-t', 'tar', |
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'-X', src_root + '/.hg[a-z]*', tarname]) |
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output_names = [] |
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if 'xztar' in archives: |
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import lzma |
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with lzma.open(xzname, 'wb') as xf, open(tarname, 'rb') as tf: |
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shutil.copyfileobj(tf, xf) |
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output_names.append(xzname) |
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if 'gztar' in archives: |
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with gzip.open(gzname, 'wb') as zf, open(tarname, 'rb') as tf: |
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shutil.copyfileobj(tf, zf) |
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output_names.append(gzname) |
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os.unlink(tarname) |
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if 'zip' in archives: |
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subprocess.check_call(['hg', 'archive', '-R', src_root, '-S', '-t', 'zip', zipname]) |
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output_names.append(zipname) |
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return output_names |
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def run_dist_steps(meson_command, unpacked_src_dir, builddir, installdir, ninja_args): |
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if subprocess.call(meson_command + ['--backend=ninja', unpacked_src_dir, builddir]) != 0: |
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print('Running Meson on distribution package failed') |
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return 1 |
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if subprocess.call(ninja_args, cwd=builddir) != 0: |
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print('Compiling the distribution package failed') |
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return 1 |
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if subprocess.call(ninja_args + ['test'], cwd=builddir) != 0: |
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print('Running unit tests on the distribution package failed') |
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return 1 |
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myenv = os.environ.copy() |
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myenv['DESTDIR'] = installdir |
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if subprocess.call(ninja_args + ['install'], cwd=builddir, env=myenv) != 0: |
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print('Installing the distribution package failed') |
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return 1 |
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return 0 |
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def check_dist(packagename, meson_command, extra_meson_args, bld_root, privdir): |
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print(f'Testing distribution package {packagename}') |
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unpackdir = os.path.join(privdir, 'dist-unpack') |
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builddir = os.path.join(privdir, 'dist-build') |
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installdir = os.path.join(privdir, 'dist-install') |
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for p in (unpackdir, builddir, installdir): |
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if os.path.exists(p): |
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windows_proof_rmtree(p) |
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os.mkdir(p) |
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ninja_args = detect_ninja() |
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shutil.unpack_archive(packagename, unpackdir) |
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unpacked_files = glob(os.path.join(unpackdir, '*')) |
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assert len(unpacked_files) == 1 |
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unpacked_src_dir = unpacked_files[0] |
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meson_command += create_cmdline_args(bld_root) |
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meson_command += extra_meson_args |
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ret = run_dist_steps(meson_command, unpacked_src_dir, builddir, installdir, ninja_args) |
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if ret > 0: |
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print(f'Dist check build directory was {builddir}') |
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else: |
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windows_proof_rmtree(unpackdir) |
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windows_proof_rmtree(builddir) |
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windows_proof_rmtree(installdir) |
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print(f'Distribution package {packagename} tested') |
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return ret |
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def create_cmdline_args(bld_root): |
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parser = argparse.ArgumentParser() |
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msetup_argparse(parser) |
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args = parser.parse_args([]) |
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coredata.parse_cmd_line_options(args) |
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coredata.read_cmd_line_file(bld_root, args) |
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args.cmd_line_options.pop(coredata.OptionKey('backend'), '') |
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return shlex.split(coredata.format_cmd_line_options(args)) |
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def determine_archives_to_generate(options): |
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result = [] |
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for i in options.formats.split(','): |
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if i not in archive_choices: |
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sys.exit(f'Value "{i}" not one of permitted values {archive_choices}.') |
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result.append(i) |
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if len(i) == 0: |
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sys.exit('No archive types specified.') |
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return result |
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def run(options): |
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buildfile = Path(options.wd) / 'meson-private' / 'build.dat' |
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if not buildfile.is_file(): |
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raise MesonException(f'Directory {options.wd!r} does not seem to be a Meson build directory.') |
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b = build.load(options.wd) |
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setup_vsenv(b.need_vsenv) |
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# This import must be load delayed, otherwise it will get the default |
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# value of None. |
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from mesonbuild.mesonlib import get_meson_command |
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src_root = b.environment.source_dir |
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bld_root = b.environment.build_dir |
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priv_dir = os.path.join(bld_root, 'meson-private') |
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dist_sub = os.path.join(bld_root, 'meson-dist') |
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dist_name = b.project_name + '-' + b.project_version |
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archives = determine_archives_to_generate(options) |
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subprojects = {} |
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extra_meson_args = [] |
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if options.include_subprojects: |
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subproject_dir = os.path.join(src_root, b.subproject_dir) |
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for sub in b.subprojects: |
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directory = wrap.get_directory(subproject_dir, sub) |
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subprojects[sub] = os.path.join(b.subproject_dir, directory) |
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extra_meson_args.append('-Dwrap_mode=nodownload') |
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if is_git(src_root): |
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names = create_dist_git(dist_name, archives, src_root, bld_root, dist_sub, b.dist_scripts, subprojects, options) |
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elif is_hg(src_root): |
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if subprojects: |
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print('--include-subprojects option currently not supported with Mercurial') |
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return 1 |
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names = create_dist_hg(dist_name, archives, src_root, bld_root, dist_sub, b.dist_scripts, options) |
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else: |
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print('Dist currently only works with Git or Mercurial repos') |
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return 1 |
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if names is None: |
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return 1 |
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rc = 0 |
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if not options.no_tests: |
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# Check only one. |
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rc = check_dist(names[0], get_meson_command(), extra_meson_args, bld_root, priv_dir) |
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if rc == 0: |
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for name in names: |
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create_hash(name) |
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print('Created', name) |
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return rc
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