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builder.py
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builder.py
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import os
import tarfile
import gzip
import yaml
from struct import pack, unpack
import subprocess
from shutil import move
from types import SimpleNamespace
from glob import glob
from debian.changelog import Changelog
from debler import config
from debler.builder import BaseBuilder, \
SourceControl, Package, \
BuildDependency, Dependency, Provide, \
InstallInto, InstallContent, RuleAction, \
FastBuild
from .constraints import parseConstraints
from ..constraints import dependencies4Constraints
def construct_ruby_object(loader, suffix, node):
return loader.construct_yaml_map(node)
def construct_binary_object(loader, suffix, node):
return loader.construct_scalar(node)
yaml.add_multi_constructor(u"!ruby/object:", construct_ruby_object)
yaml.add_multi_constructor(u'!binary', construct_binary_object)
class GemVersion():
def __init__(self, parts):
self.parts = parts
@classmethod
def fromstr(cls, s):
parts = []
for part in s.split('.'):
if part.isdecimal():
parts.append(int(part))
elif part.startswith('rev'):
parts.append(-2)
part = part[3:]
assert len(part) == 40
while len(part) > 0:
i = int(part[:8], 16)
parts.append(unpack('i', pack('I', i))[0])
part = part[8:]
parts.append(0)
else:
parts.append(-1)
for char in part:
parts.append(ord(char))
parts.append(0)
return cls(parts)
def __str__(self):
s = ''
needdot = False
instr = False
inrev = False
for part in self.parts:
if needdot:
s += '.'
else:
needdot = True
if part == 0 and (instr or inrev):
instr = False
elif instr:
s += chr(part)
needdot = False
elif inrev:
s += '{:08x}'.format(unpack('I', pack('i', part))[0])
needdot = False
elif part >= 0:
s += str(part)
elif part == -1:
instr = True
needdot = False
elif part == -2:
inrev = True
needdot = False
s += 'rev'
elif part == -9:
s += 'beta'
needdot = False
elif part == -8:
s += 'xikolo'
elif part == -7:
s += 'openhpi'
return s
def todb(self):
return self.parts
def limit(self, l):
return GemVersion(self.parts[:l])
class GemInfo():
pass
class GemBuilder(BaseBuilder):
@staticmethod
def gemname2deb(name):
return 'debler-rubygem-' + name.lower().replace('_', '--')
def __init__(self, pkger, tmp_dir, build_id):
self.pkger = pkger
self.db = pkger.db
self.tmp_dir = tmp_dir
self.build = self.db.build_data(build_id)
assert self.build.pkger == 'bundler'
self.gem_name = self.build.pkg
self.orig_name = self.build.pkg
self.gem_slot = self.build.slot
self.gem_version = self.build.version
self.revision = self.build.revision
self.deb_version = self.build.revision
self.own_name = self.gem_name
if self.gem_slot:
self.own_name += '-' + str(self.gem_slot)
self.deb_name = self.gemname2deb(self.own_name)
self.pkg_dir = tmp_dir + '/' + self.gem_name + '-' + str(self.gem_slot)
self.package_upload = config.gem_package_upload
def generate(self):
self.create_dirs()
self.fetch_source()
self.parse_metadata()
super().generate()
def parse_metadata(self):
with tarfile.open(name=self.src_file) as t:
metadata = gzip.GzipFile(fileobj=t.extractfile('metadata.gz')) \
.read()
self.metadata = yaml.load(metadata)
def create_dirs(self):
os.makedirs(os.path.dirname(self.src_file), exist_ok=True)
@property
def src_file(self):
return os.path.join(
config.gemdir,
'versions',
self.gem_name,
str(self.gem_version) + '.gem')
@property
def tarxz_file(self):
return os.path.join(
config.gemdir,
'versions',
self.gem_name,
str(self.gem_version) + '.tar.xz')
@property
def orig_tar(self):
return os.path.join(
self.slot_dir,
'{}_{}.orig.tar.xz'.format(self.deb_name, str(self.gem_version))
)
def fetch_source(self):
if os.path.isfile(self.src_file):
return
if 'revision' not in self.build.version_config:
subprocess.check_call([
'wget',
'{}/gems/{}-{}.gem'.format(self.pkger.rubygems, self.gem_name,
self.gem_version),
'-O', self.src_file])
return
subprocess.check_call(['git', 'clone',
self.build.version_config['repository'],
os.path.join(self.tmp_dir, 'git')])
subprocess.check_call([
'git',
'-C', os.path.join(self.tmp_dir, 'git'),
'reset', '--hard',
self.build.version_config['revision']])
subprocess.check_call([
'gem', 'build',
*glob(os.path.join(self.tmp_dir, 'git', '*.gemspec'))],
cwd=os.path.join(self.tmp_dir, 'git'))
gem_file = glob(os.path.join(self.tmp_dir, 'git', '*.gem'))[0]
move(gem_file, self.src_file)
@property
def slot_dir(self):
return self.tmp_dir
def build_tarxz(self):
if os.path.isfile(self.tarxz_file):
return
outtar = tarfile.open(name=self.tarxz_file, mode='w:xz')
intar = tarfile.open(name=self.src_file)
# 1. add metadata as yml file
gz = gzip.GzipFile(fileobj=intar.extractfile('metadata.gz'))
meta = intar.getmember('metadata.gz')
meta.name = 'metadata.yml'
outtar.addfile(meta, fileobj=gz)
# 2. add data files under srv/
datatardata = gzip.GzipFile(fileobj=intar.extractfile('data.tar.gz'))
datatar = tarfile.open(fileobj=datatardata)
for member in datatar.getmembers():
data = datatar.extractfile(member.name)
member.name = 'src/' + member.name
outtar.addfile(member, fileobj=data)
# 3. flush all
outtar.close()
def build_orig_tar(self):
if os.path.isfile(self.orig_tar):
return
self.build_tarxz()
os.symlink(self.tarxz_file, self.orig_tar)
def generate_control_content(self):
yield SourceControl(
source=self.deb_name,
priority='optional',
maintainer=config.maintainer,
standards_version='3.9.6',
)
if self.metadata['homepage']:
yield SourceControl(homepage=self.metadata['homepage'])
yield BuildDependency('debhelper')
exts = self.extension_list()
if len(exts) > 0:
for ruby in self.pkger.rubies:
yield BuildDependency('ruby{}'.format(ruby))
yield BuildDependency('ruby{}-dev'.format(ruby))
yield FastBuild(len(exts) == 0) # extension prohibite fast build
info = self.pkger.gem_info(self.gem_name)
if info.native is None: # auto-detect on first build
info.native = bool(len(exts) > 0)
assert info.native is (len(exts) > 0), 'Native flag value is wrong!'
for builddep in info.get('builddeps', []):
yield BuildDependency(builddep)
yield Package(
self.deb_name,
architecture='all',
section='ruby',
description=self.metadata['summary'] + '\n' +
(self.metadata.get('description', '') or ''),
)
if info.level > 0:
yield Provide(self.deb_name, self.gemname2deb(self.gem_name))
for l in range(1, info.level):
yield Provide(self.deb_name,
self.gemname2deb(
self.gem_name + '-' +
'.'.join(self.gem_version.split('.')[:l])))
if 'revision' in self.build.version_config:
yield Provide(self.deb_name, self.gemname2deb(self.gem_name) +
'-' + self.build.version_config['revision'])
self.ext_load_paths = []
for dep in self.metadata['dependencies']:
if dep['type'] != ':runtime':
continue
depinfo = self.pkger.gem_info(dep['name'])
if depinfo.get('ignore', False) or dep['name'] == 'bundler':
continue
req = self.gemname2deb(dep['name'])
if depinfo.get('buildgem', False):
# gem is only used during gem building,
# no need for runtime dependency
slot = depinfo.slots[-1]
yield BuildDependency(req + '-' + str(slot.version))
for path in slot.get('require_paths', []):
self.ext_load_paths.append(
'/usr/share/rubygems-debler/{name}-{slot}/{}/'.format(
path, name=dep['name'], slot=slot.version))
# TODO: implement version contraints
continue
requirements = dep['version_requirements']['requirements']
constraints = parseConstraints(requirements)
yield from dependencies4Constraints(self.deb_name, depinfo,
constraints)
for dep in info.lookup('rundeps', default=[]):
yield Dependency(self.deb_name, dep)
yield Dependency(self.deb_name, '${shlibs:Depends}')
yield Dependency(self.deb_name, '${misc:Depends}')
if len(exts) > 0:
binary_deps = ['{}-ruby{} (= ${{binary:Version}})'.format(
self.deb_name, ruby) for ruby in self.pkger.rubies]
yield Dependency(self.deb_name, ' | '.join(binary_deps))
if len(exts) > 0:
for ruby in self.pkger.rubies:
name = self.deb_name + '-ruby' + ruby
yield Package(
name,
architecture='any',
section='ruby',
description=self.metadata['summary'] +
'\n Native extension for ruby' + ruby
)
yield Dependency(name, '${shlibs:Depends}')
yield Dependency(name, '${misc:Depends}')
def generate_changelog_file(self):
changes = Changelog()
for version, scheduled_at, change, distribution in \
self.db.changelog_entries(self.build.id):
changes.new_block(
package=self.deb_name,
version=version,
distributions=distribution,
urgency='low',
author=config.maintainer,
date=scheduled_at.strftime('%a, %d %b %Y %H:%M:%S %z'))
changes.add_change('\n * ' + change + '\n')
with open(self.debian_file('changelog'), 'w') as f:
changes.write_to_open_file(f)
def gemspec(self):
yield '''# File auto-generated by debler gem-builder
Gem::Specification.new do |s|
s.name = "{name}"
s.version = "{version}"
if s.respond_to? :required_rubygems_version=
s.required_rubygems_version = Gem::Requirement.new(">= 0")
end
s.require_paths = ["{require_paths}"]
s.authors = ["{authors}"]
s.date = "{date}"
s.description = "{description}"
s.email = ["{email}"]
s.homepage = "{homepage}"
s.licenses = ["{licenses}"]
s.summary = "{summary}"
'''.format(
name=self.gem_name,
version=self.metadata['version']['version'],
require_paths='", "'.join(self.metadata['require_paths']),
authors='", "'.join(self.metadata['authors']),
date=self.metadata['date'].strftime('%Y-%m-%d'),
description=(self.metadata.get('description', '') or '')
.replace('"', '\\"'),
email='", "'.join(self.metadata['email'])
if type(self.metadata['email']) is list
else self.metadata['email'],
homepage=self.metadata['homepage'], # TODO: might be None!
licenses='", "'.join(self.metadata.get('licenses', [])),
summary=self.metadata.get('summary', '').replace('"', '\\"'))
for dep in self.metadata['dependencies']:
if dep['type'] == ':runtime':
kind = 'add_dependency'
else:
kind = 'add_development_dependency'
yield ' s.{kind}("{name}"'.format(kind=kind, name=dep['name'])
for version in dep['version_requirements']['requirements']:
yield ', "{op} {version}"'.format(
op=version[0],
version=version[1]['version'])
yield ')\n'
yield 'end\n'
def generate_rules_content(self):
metadata = {
'binaries': [],
'require_paths': self.metadata['require_paths'],
'require': None
}
rules = {}
rules['build'] = []
rules['install'] = []
exts = self.extension_list()
info = self.pkger.gem_info(self.gem_name)
Build = SimpleNamespace
defaultbuild = Build(
ext_args=info.lookup('ext_args', ''),
subdir=info.get('so_subdir', ''),
rubyopts=''
)
for load_path in self.ext_load_paths:
defaultbuild.rubyopts += ' -I{path}'.format(path=load_path)
if len(exts) == 1:
buildmatrix = [Build(
ruby='ruby' + ruby,
rubyversion=ruby + '.0',
dir='v' + ruby,
ext='../src/' + exts[0],
**defaultbuild.__dict__)
for ruby in self.pkger.rubies]
elif len(exts) > 1:
buildmatrix = [Build(
ruby='ruby' + ruby,
rubyversion=ruby + '.0',
dir='v' + ruby + '/' + ext.replace('/', '_'),
ext='../../src/' + ext,
**defaultbuild.__dict__)
for ruby in self.pkger.rubies
for ext in exts]
if len(exts) > 0:
yield RuleAction('build', 'mkdir -p ' +
' '.join(build.dir for build in buildmatrix))
for build in buildmatrix:
yield RuleAction('build',
('cd {build.dir} && ' +
'{build.ruby} {build.rubyopts} ' +
'{build.ext} {build.ext_args}').format(
build=build))
for build in buildmatrix:
yield RuleAction('build', 'make -C ' + build.dir)
for build in buildmatrix:
yield InstallInto(
self.deb_name + '-' + build.ruby,
os.path.join(build.dir, '*.so'),
os.path.join('/', 'usr', 'lib',
'${DEB_BUILD_MULTIARCH}',
'rubygems-debler',
build.rubyversion,
self.own_name,
build.subdir))
yield InstallContent(
self.deb_name,
name=self.gem_name + '.gemspec',
dest='/usr/share/rubygems-debler/{}/'.format(self.own_name),
mode=0o755,
content=''.join(self.gemspec()))
current_level = None
require_files = []
with tarfile.open(self.src_file) as t, \
tarfile.open(fileobj=t.extractfile('data.tar.gz')) as dt:
members = dt.getmembers()
for member in members:
# search for binaries
if self.metadata['bindir'] and \
member.name.startswith(self.metadata['bindir'] + '/'):
metadata['binaries'].append(member.name)
# search for require entry files (top level file ...)
for path in self.metadata['require_paths']:
if member.name.startswith(path) \
and member.name.endswith('.rb'):
parts = member.name.split('/')
if current_level is None or len(parts) < current_level:
# strip extension
require_files = [member.name[len(path)+1:-3]]
current_level = len(parts)
elif len(parts) == current_level: # should not happend
# strip extension + require path
require_files.append(member.name[len(path)+1:-3])
if member.name.startswith('ext'):
continue
for path in self.metadata['require_paths'] + \
[self.metadata['bindir'], 'data', 'vendor'] + \
info.get('extra_dirs', []):
if member.name.startswith(path):
break
else:
continue
yield InstallInto(
self.deb_name,
os.path.join('src', member.name),
'/usr/share/rubygems-debler/{name}/{dest}'.format(
name=self.own_name,
dest=os.path.dirname(member.name)))
if self.orig_name in require_files:
metadata['require'] = [self.orig_name]
elif self.orig_name.replace('-', '/') in require_files:
metadata['require'] = [self.orig_name.replace('-', '/')]
elif len(require_files) == 1:
metadata['require'] = require_files
elif not require_files:
pass
else:
# not sure what to do ...
metadata['require'] = require_files
self.pkger.db.set_slot_metadata(self.build.slot_id, metadata)
def extension_list(self):
info = self.pkger.gem_info(self.gem_name)
exts = list(self.metadata['extensions'])
for ext in info.get('skip_exts', []):
exts.remove(ext)
return exts