+def check_deb_ar(filename, control):
+ """Sanity check the ar of a .deb, i.e. that there is:
+
+ o debian-binary
+ o control.tar.gz
+ o data.tar.gz or data.tar.bz2
+
+in that order, and nothing else. If the third member is a
+data.tar.bz2, an additional check is performed for the required
+Pre-Depends on dpkg (>= 1.10.24)."""
+ cmd = "ar t %s" % (filename)
+ (result, output) = commands.getstatusoutput(cmd)
+ if result != 0:
+ reject("%s: 'ar t' invocation failed." % (filename))
+ reject(utils.prefix_multi_line_string(output, " [ar output:] "), "")
+ chunks = output.split('\n')
+ if len(chunks) != 3:
+ reject("%s: found %d chunks, expected 3." % (filename, len(chunks)))
+ if chunks[0] != "debian-binary":
+ reject("%s: first chunk is '%s', expected 'debian-binary'." % (filename, chunks[0]))
+ if chunks[1] != "control.tar.gz":
+ reject("%s: second chunk is '%s', expected 'control.tar.gz'." % (filename, chunks[1]))
+ if chunks[2] == "data.tar.bz2":
+ # Packages using bzip2 compression must have a Pre-Depends on dpkg >= 1.10.24.
+ found_needed_predep = 0
+ for parsed_dep in apt_pkg.ParseDepends(control.Find("Pre-Depends", "")):
+ for atom in parsed_dep:
+ (dep, version, constraint) = atom
+ if dep != "dpkg" or (constraint != ">=" and constraint != ">>") or \
+ len(parsed_dep) > 1: # or'ed deps don't count
+ continue
+ if (constraint == ">=" and apt_pkg.VersionCompare(version, "1.10.24") < 0) or \
+ (constraint == ">>" and apt_pkg.VersionCompare(version, "1.10.23") < 0):
+ continue
+ found_needed_predep = 1
+ if not found_needed_predep:
+ reject("%s: uses bzip2 compression, but doesn't Pre-Depend on dpkg (>= 1.10.24)" % (filename))
+ elif chunks[2] != "data.tar.gz":
+ reject("%s: third chunk is '%s', expected 'data.tar.gz' or 'data.tar.bz2'." % (filename, chunks[2]))
+
+################################################################################
+