/usr/share/doc/python-apt/examples/build-deps-old.py is in python-apt-doc 0.9.3.5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | #!/usr/bin/python
# this is a example how to access the build dependencies of a package
import apt_pkg
import sys
def get_source_pkg(pkg, records, depcache):
""" get the source package name of a given package """
version = depcache.get_candidate_ver(pkg)
if not version:
return None
file, index = version.file_list.pop(0)
records.lookup((file, index))
if records.source_pkg != "":
srcpkg = records.source_pkg
else:
srcpkg = pkg.name
return srcpkg
# main
apt_pkg.init()
cache = apt_pkg.Cache()
depcache = apt_pkg.DepCache(cache)
depcache.init()
records = apt_pkg.PackageRecords(cache)
srcrecords = apt_pkg.SourceRecords()
# base package that we use for build-depends calculation
if len(sys.argv) < 2:
print "need a package name as argument"
sys.exit(1)
try:
pkg = base = cache[sys.argv[1]]
except KeyError:
print "No package %s found" % sys.argv[1]
sys.exit(1)
all_build_depends = set()
# get the build depdends for the package itself
srcpkg_name = get_source_pkg(base, records, depcache)
print "srcpkg_name: %s " % srcpkg_name
if not srcpkg_name:
print "Can't find source package for '%s'" % pkg.mame
srcrec = srcrecords.lookup(srcpkg_name)
if srcrec:
print "Files:"
print srcrecords.files
bd = srcrecords.build_depends
print "build-depends of the package: %s " % bd
for b in bd:
all_build_depends.add(b[0])
# calculate the build depends for all dependencies
depends = depcache.get_candidate_ver(base).depends_list
for dep in depends["Depends"]: # FIXME: do we need to consider PreDepends?
pkg = dep[0].target_pkg
srcpkg_name = get_source_pkg(pkg, records, depcache)
if not srcpkg_name:
print "Can't find source package for '%s'" % pkg.name
continue
srcrec = srcrecords.lookup(srcpkg_name)
if srcrec:
#print srcrecords.package
#print srcrecords.binaries
bd = srcrecords.build_depends
#print "%s: %s " % (srcpkg_name, bd)
for b in bd:
all_build_depends.add(b[0])
print "\n".join(all_build_depends)
|