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import os
import re
import glob
import subprocess
#
# Patch parsing functions
#
FIND_INFRA_IN_PATCH = re.compile("^\+\$\(eval \$\((host-)?([^-]*)-package\)\)$")
def analyze_patch(patch):
"""Parse one patch and return the list of files modified, added or
removed by the patch."""
files = set()
infras = set()
for line in patch:
# If the patch is adding a package, find which infra it is
m = FIND_INFRA_IN_PATCH.match(line)
if m:
infras.add(m.group(2))
if not line.startswith("+++ "):
continue
line.strip()
fname = line[line.find("/") + 1:].strip()
if fname == "dev/null":
continue
files.add(fname)
return (files, infras)
FIND_INFRA_IN_MK = re.compile("^\$\(eval \$\((host-)?([^-]*)-package\)\)$")
def fname_get_package_infra(fname):
"""Checks whether the file name passed as argument is a Buildroot .mk
file describing a package, and find the infrastructure it's using."""
if not fname.endswith(".mk"):
return None
if not os.path.exists(fname):
return None
with open(fname, "r") as f:
for line in f:
line = line.strip()
m = FIND_INFRA_IN_MK.match(line)
if m:
return m.group(2)
return None
def get_infras(files):
"""Search in the list of files for .mk files, and collect the package
infrastructures used by those .mk files."""
infras = set()
for fname in files:
infra = fname_get_package_infra(fname)
if infra:
infras.add(infra)
return infras
def analyze_patches(patches):
"""Parse a list of patches and returns the list of files modified,
added or removed by the patches, as well as the list of package
infrastructures used by those patches (if any)"""
allfiles = set()
allinfras = set()
for patch in patches:
(files, infras) = analyze_patch(patch)
allfiles = allfiles | files
allinfras = allinfras | infras
allinfras = allinfras | get_infras(allfiles)
return (allfiles, allinfras)
#
# DEVELOPERS file parsing functions
#
class Developer:
def __init__(self, name, files):
self.name = name
self.files = files
self.packages = parse_developer_packages(files)
self.architectures = parse_developer_architectures(files)
self.infras = parse_developer_infras(files)
def hasfile(self, f):
f = os.path.abspath(f)
for fs in self.files:
if f.startswith(fs):
return True
return False
def parse_developer_packages(fnames):
"""Given a list of file patterns, travel through the Buildroot source
tree to find which packages are implemented by those file
patterns, and return a list of those packages."""
packages = set()
for fname in fnames:
for root, dirs, files in os.walk(fname):
for f in files:
path = os.path.join(root, f)
if fname_get_package_infra(path):
pkg = os.path.splitext(f)[0]
packages.add(pkg)
return packages
def parse_arches_from_config_in(fname):
"""Given a path to an arch/Config.in.* file, parse it to get the list
of BR2_ARCH values for this architecture."""
arches = set()
with open(fname, "r") as f:
parsing_arches = False
for line in f:
line = line.strip()
if line == "config BR2_ARCH":
parsing_arches = True
continue
if parsing_arches:
m = re.match("^\s*default \"([^\"]*)\".*", line)
if m:
arches.add(m.group(1))
else:
parsing_arches = False
return arches
def parse_developer_architectures(fnames):
"""Given a list of file names, find the ones starting by
'arch/Config.in.', and use that to determine the architecture a
developer is working on."""
arches = set()
for fname in fnames:
if not re.match("^.*/arch/Config\.in\..*$", fname):
continue
arches = arches | parse_arches_from_config_in(fname)
return arches
def parse_developer_infras(fnames):
infras = set()
for fname in fnames:
m = re.match("^package/pkg-([^.]*).mk$", fname)
if m:
infras.add(m.group(1))
return infras
def parse_developers(basepath=None):
"""Parse the DEVELOPERS file and return a list of Developer objects."""
developers = []
linen = 0
if basepath is None:
basepath = os.getcwd()
else:
basepath = os.path.abspath(basepath)
with open(os.path.join(basepath, "DEVELOPERS"), "r") as f:
files = []
name = None
for line in f:
line = line.strip()
if line.startswith("#"):
continue
elif line.startswith("N:"):
if name is not None or len(files) != 0:
print("Syntax error in DEVELOPERS file, line %d" % linen)
name = line[2:].strip()
elif line.startswith("F:"):
fname = line[2:].strip()
dev_files = glob.glob(os.path.join(basepath, fname))
if len(dev_files) == 0:
print("WARNING: '%s' doesn't match any file" % fname)
files += dev_files
elif line == "":
if not name:
continue
developers.append(Developer(name, files))
files = []
name = None
else:
print("Syntax error in DEVELOPERS file, line %d: '%s'" % (linen, line))
return None
linen += 1
# handle last developer
if name is not None:
developers.append(Developer(name, files))
return developers
def check_developers(developers, basepath=None):
"""Look at the list of files versioned in Buildroot, and returns the
list of files that are not handled by any developer"""
if basepath is None:
basepath = os.getcwd()
cmd = ["git", "--git-dir", os.path.join(basepath, ".git"), "ls-files"]
files = subprocess.check_output(cmd).strip().split("\n")
unhandled_files = []
for f in files:
handled = False
for d in developers:
if d.hasfile(os.path.join(basepath, f)):
handled = True
break
if not handled:
unhandled_files.append(f)
return unhandled_files
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