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"""Various utilities that are handy."""
import codecs
import re
import os
import os.path
import subprocess
import sys
def getAllSourceFiles(arr=None, prefix="."):
if arr is None:
arr = []
if not os.path.isdir(prefix):
# assume a file
arr.append(prefix)
return arr
for x in os.listdir(prefix):
if (x.startswith(".")
or x.startswith("pcre-")
or x.startswith("32bit")
or x.startswith("mongodb-")
or x.startswith("debian")
or x.startswith("mongo-cxx-driver")
or x.startswith("sqlite")
or "gotools" in x
or x.find("mozjs") != -1):
continue
def isFollowableDir(prefix, full):
if not os.path.isdir(full):
return False
if not os.path.islink(full):
return True
# Follow softlinks in the modules directory (e.g: enterprise).
if os.path.split(prefix)[1] == "modules":
return True
return False
full = prefix + "/" + x
if isFollowableDir(prefix, full):
getAllSourceFiles(arr, full)
else:
if full.endswith(".cpp") or full.endswith(".h") or full.endswith(".c"):
full = full.replace("//", "/")
arr.append(full)
return arr
def getGitBranch():
if not os.path.exists(".git") or not os.path.isdir(".git"):
return None
version = open(".git/HEAD", "r").read().strip()
if not version.startswith("ref: "):
return version
version = version.split("/")
version = version[len(version)-1]
return version
def getGitBranchString(prefix="", postfix=""):
t = re.compile("[/\\\]").split(os.getcwd())
if len(t) > 2 and t[len(t)-1] == "mongo":
par = t[len(t)-2]
m = re.compile(".*_([vV]\d+\.\d+)$").match(par)
if m is not None:
return prefix + m.group(1).lower() + postfix
if par.find("Nightly") > 0:
return ""
b = getGitBranch()
if b is None or b == "master":
return ""
return prefix + b + postfix
def getGitVersion():
if not os.path.exists(".git") or not os.path.isdir(".git"):
return "nogitversion"
version = open(".git/HEAD", "r").read().strip()
if not version.startswith("ref: "):
return version
version = version[5:]
f = ".git/" + version
if not os.path.exists(f):
return version
return open(f, "r").read().strip()
def getGitDescribe():
with open(os.devnull, "r+") as devnull:
proc = subprocess.Popen(
"git describe",
stdout=subprocess.PIPE,
stderr=devnull,
stdin=devnull,
shell=True)
return proc.communicate()[0].strip()
def execsys(args):
import subprocess
if isinstance(args, str):
r = re.compile("\s+")
args = r.split(args)
p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
r = p.communicate()
return r
def which(executable):
if sys.platform == "win32":
paths = os.environ.get("Path", "").split(";")
else:
paths = os.environ.get("PATH", "").split(":")
for path in paths:
path = os.path.expandvars(path)
path = os.path.expanduser(path)
path = os.path.abspath(path)
executable_path = os.path.join(path, executable)
if os.path.exists(executable_path):
return executable_path
return executable
def find_python(min_version=(2, 5)):
try:
if sys.version_info >= min_version:
return sys.executable
except AttributeError:
# In case the version of Python is somehow missing sys.version_info or sys.executable.
pass
version = re.compile(r"[Pp]ython ([\d\.]+)", re.MULTILINE)
binaries = (
"python27", "python2.7", "python26", "python2.6", "python25", "python2.5", "python")
for binary in binaries:
try:
out, err = subprocess.Popen(
[binary, "-V"], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
for stream in (out, err):
match = version.search(stream)
if match:
versiontuple = tuple(map(int, match.group(1).split(".")))
if versiontuple >= min_version:
return which(binary)
except:
pass
raise Exception(
"could not find suitable Python (version >= %s)" % ".".join(str(v) for v in min_version))
# unicode is a pain. some strings cannot be unicode()'d
# but we want to just preserve the bytes in a human-readable
# fashion. this codec error handler will substitute the
# repr() of the offending bytes into the decoded string
# at the position they occurred
def replace_with_repr(unicode_error):
offender = unicode_error.object[unicode_error.start:unicode_error.end]
return (unicode(repr(offender).strip("'").strip('"')), unicode_error.end)
codecs.register_error("repr", replace_with_repr)
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