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import fnmatch
import os
import os.path
import shutil
import subprocess
import sys
def GetPythonExecutable(env):
base = os.path.basename(sys.executable)
path = env.Which(base)
if path and path[0] == sys.executable:
return base
else:
return sys.executable
def GetCommandOutput(env, command):
try:
with open(os.devnull, 'w') as null:
proc = subprocess.Popen(command,
shell=True,
stdin=null,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
env=env['ENV'])
lines = [s.decode() for s in proc.stdout.readlines()]
output = str(' '.join(lines).strip())
proc.terminate()
return output
except:
return None
def GlobRecursive(env, dirs, patterns, exclude=[]):
if not isinstance(dirs, list):
dirs = [dirs]
if not isinstance(patterns, list):
patterns = [patterns]
if not isinstance(exclude, list):
exclude = [exclude]
matches = []
for pattern in patterns:
for root in dirs:
if type(root) is not str or not os.path.isabs(root):
root = env.Dir(root).srcnode().abspath
for root, dirnames, filenames in os.walk(root):
for names in [dirnames, filenames]:
for name in fnmatch.filter(names, pattern):
cwd = env.Dir('.').srcnode().abspath
abspath = os.path.join(root, name)
relpath = os.path.relpath(abspath, cwd)
for ex in exclude:
if fnmatch.fnmatch(relpath, ex):
break
if fnmatch.fnmatch(os.path.basename(relpath), ex):
break
else:
if names is dirnames:
matches.append(env.Dir(relpath))
else:
matches.append(env.File(relpath))
return matches
def GlobFiles(env, pattern):
ret = []
for path in env.Glob(pattern):
if os.path.isfile(path.srcnode().abspath):
ret.append(path)
return ret
def GlobDirs(env, pattern):
ret = []
for path in env.Glob(pattern):
if os.path.isdir(path.srcnode().abspath):
ret.append(path)
return ret
def Which(env, prog, prepend_path=[]):
def _getenv(env, name, default):
if name in env['ENV']:
return env['ENV'][name]
return os.environ.get(name, default)
def _which(env, prog, mode, searchpath):
result = []
exts = list(filter(None, _getenv(env, 'PATHEXT', '').split(os.pathsep)))
for p in searchpath.split(os.pathsep):
p = os.path.join(p, prog)
if os.access(p, mode):
result.append(p)
for e in exts:
pext = p + e
if os.access(pext, mode):
result.append(pext)
return result
if os.access(prog, os.X_OK):
return [prog]
searchpath = _getenv(env, 'PATH', os.defpath)
if prepend_path:
searchpath = os.pathsep.join(prepend_path) + os.pathsep + searchpath
paths = []
try:
path = shutil.which(prog, os.X_OK, searchpath)
if path:
paths = [path]
except:
paths = _which(env, prog, os.X_OK, searchpath)
return paths
def init(env):
env.AddMethod(GetPythonExecutable, 'GetPythonExecutable')
env.AddMethod(GetCommandOutput, 'GetCommandOutput')
env.AddMethod(GlobRecursive, 'GlobRecursive')
env.AddMethod(GlobFiles, 'GlobFiles')
env.AddMethod(GlobDirs, 'GlobDirs')
env.AddMethod(Which, 'Which')
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