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import os.path
import platform
import re
def _fix_target(s):
# on redhat and fedora, "system" and "os" parts are different
# convert it to common form
s = s.replace('-redhat-linux', '-linux-gnu')
parts = s.split('-')
if len(parts) == 3:
# on some distros "system" part is omitted
# convert it to common form
parts = [parts[0]] + ['pc'] + parts[1:]
elif len(parts) == 4:
# on older config.guess versions "system" part defaulted to
# "unknown" instead of "pc"; convert it to modern form
if parts[1] == 'unknown':
parts[1] = 'pc'
s = '-'.join(parts)
return s
def ParseGitHead(env):
try:
with open('.git/HEAD') as hf:
head_ref = hf.read().strip().split()[-1]
pattern = re.compile(r'\b[0-9a-f]{40}\b')
is_sha = re.match(pattern, head_ref)
if is_sha:
return head_ref[:10]
else:
with open('.git/{}'.format(head_ref)) as hrf:
return hrf.read().strip()[:10]
except:
return None
def ParseProjectVersion(env, path):
return env.GetCommandOutput(
'{python_cmd} scripts/scons_helpers/parse-version.py'.format(
python_cmd=env.GetPythonExecutable()))
def ParseToolVersion(env, command):
text = env.GetCommandOutput(command)
if not text:
return None
m = re.search(r'(\b[0-9][0-9.]+\b)', text)
if not m:
return None
return m.group(1)
def ParseCompilerVersion(env, compiler):
def getverstr():
try:
version_formats = [
r'(\b[0-9]+\.[0-9]+\.[0-9]+\b)',
r'(\b[0-9]+\.[0-9]+\b)',
]
full_text = env.GetCommandOutput(compiler + ' --version')
for regex in version_formats:
m = re.search(r'(?:LLVM|clang)\s+version\s+'+regex, full_text)
if m:
return m.group(1)
trunc_text = re.sub(r'\([^)]+\)', '', full_text)
dump_text = env.GetCommandOutput(compiler + ' -dumpversion')
for text in [dump_text, trunc_text, full_text]:
for regex in version_formats:
m = re.search(regex, text)
if m:
return m.group(1)
return None
except:
pass
ver = getverstr()
if ver:
return tuple(map(int, ver.split('.')))
else:
return None
def ParseCompilerTarget(env, compiler):
text = env.GetCommandOutput(compiler + ' -v -E -')
if not text:
return None
for line in text.splitlines():
m = re.search(r'\bTarget:\s*(\S+)', line)
if m:
s = m.group(1)
s = _fix_target(s)
return s
return None
def ParseCompilerType(env, compiler):
cmds = [compiler + ' --version', compiler + ' -v -E -']
for cmd in cmds:
text = env.GetCommandOutput(cmd)
if 'clang version' in text:
return 'clang'
if 'gcc version' in text:
return 'gcc'
basename = os.path.basename(compiler)
if 'clang' in basename:
return 'clang'
if 'gcc' in basename or 'g++' in basename:
return 'gcc'
if basename in ['cc', 'c++']:
return 'cc'
return None
def ParseCompilerDirectory(env, compiler):
text = env.GetCommandOutput(compiler + ' --version')
if not text:
return None
for line in text.splitlines():
m = re.search(r'\bInstalledDir:\s*(.*)', line)
if m:
return m.group(1)
return None
def ParseLinkDirs(env, linker):
text = env.GetCommandOutput(linker + ' -print-search-dirs')
if not text:
return []
for line in text.splitlines():
m = re.search(r'^\s*libraries:\s*=(.*)$', line)
if m:
ret = []
for libdir in m.group(1).split(':'):
libdir = os.path.abspath(libdir)
if os.path.isdir(libdir):
ret.append(libdir)
return ret
return []
def ParseConfigGuess(env, cmd):
text = env.GetCommandOutput(cmd)
if not text:
return None
if not re.match(r'^\S+-\S+$', text):
return None
text = _fix_target(text)
return text
def ParseMacosHost(env, host, macos_platform, macos_arch):
if not 'darwin' in host:
return host
arch_list = ParseList(env, macos_arch, ['arm64', 'x86_64'])
if len(arch_list) > 1:
for arch in ['arm64', 'x86_64']:
host = host.replace(arch, 'universal')
host = host.replace('-pc-apple-', '-apple-macos{}-'.format(
ParseMacosPlatform(env, host, macos_platform)))
return host
def ParseMacosPlatform(env, host, macos_platform):
if not 'darwin' in host:
return None
if macos_platform:
return macos_platform
text = env.GetCommandOutput('sw_vers')
if text:
for line in text.splitlines():
if 'ProductVersion' in line:
try:
return '.'.join(line.split()[-1].split('.')[:2])
except:
pass
return None
def ParseMacosArch(env, host, macos_arch):
if not 'darwin' in host:
return []
arch_list = ParseList(env, macos_arch, ['arm64', 'x86_64'])
if arch_list:
return arch_list
if 'universal' in host:
return ['arm64', 'x86_64']
for arch in ['arm64', 'x86_64']:
if arch in host:
return [arch]
if 'arm' in platform.processor():
return ['arm64']
else:
return ['x86_64']
def ParseList(env, s, all):
if not s:
return []
ret = []
for name in s.split(','):
if name == 'all':
for other_name in all:
if not other_name in ret and other_name != 'all':
ret.append(other_name)
else:
if not name in ret:
ret.append(name)
return ret
def init(env):
env.AddMethod(ParseGitHead, 'ParseGitHead')
env.AddMethod(ParseProjectVersion, 'ParseProjectVersion')
env.AddMethod(ParseToolVersion, 'ParseToolVersion')
env.AddMethod(ParseCompilerVersion, 'ParseCompilerVersion')
env.AddMethod(ParseCompilerTarget, 'ParseCompilerTarget')
env.AddMethod(ParseCompilerType, 'ParseCompilerType')
env.AddMethod(ParseCompilerDirectory, 'ParseCompilerDirectory')
env.AddMethod(ParseLinkDirs, 'ParseLinkDirs')
env.AddMethod(ParseConfigGuess, 'ParseConfigGuess')
env.AddMethod(ParseMacosHost, 'ParseMacosHost')
env.AddMethod(ParseMacosPlatform, 'ParseMacosPlatform')
env.AddMethod(ParseMacosArch, 'ParseMacosArch')
env.AddMethod(ParseList, 'ParseList')
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