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import re,string
ver_regexp = re.compile("^(cvs\\.)?(\\d+)((\\.\\d+)*)([a-z]?)((_(pre|p|beta|alpha|rc)\\d*)*)(-r(\\d+))?$")
suffix_regexp = re.compile("^(alpha|beta|rc|pre|p)(\\d*)$")
suffix_value = {"pre": -2, "p": 0, "alpha": -4, "beta": -3, "rc": -1}
def ververify(myver, silent=1):
if ver_regexp.match(myver):
return 1
else:
if not silent:
print "!!! syntax error in version: %s" % myver
return 0
vercmp_cache = {}
def vercmp(ver1, ver2, silent=1):
if ver1 == ver2:
return 0
mykey=ver1+":"+ver2
try:
return vercmp_cache[mykey]
except KeyError:
pass
match1 = ver_regexp.match(ver1)
match2 = ver_regexp.match(ver2)
# checking that the versions are valid
if not match1 or not match1.groups():
if not silent:
print "!!! syntax error in version: %s" % ver1
return None
if not match2 or not match2.groups():
if not silent:
print "!!! syntax error in version: %s" % ver2
return None
# shortcut for cvs ebuilds (new style)
if match1.group(1) and not match2.group(1):
vercmp_cache[mykey] = 1
return 1
elif match2.group(1) and not match1.group(1):
vercmp_cache[mykey] = -1
return -1
# building lists of the version parts before the suffix
# first part is simple
list1 = [string.atoi(match1.group(2))]
list2 = [string.atoi(match2.group(2))]
# this part would greatly benefit from a fixed-length version pattern
if len(match1.group(3)) or len(match2.group(3)):
vlist1 = match1.group(3)[1:].split(".")
vlist2 = match2.group(3)[1:].split(".")
for i in range(0, max(len(vlist1), len(vlist2))):
if len(vlist1) <= i or len(vlist1[i]) == 0:
list1.append(0)
list2.append(string.atoi(vlist2[i]))
elif len(vlist2) <= i or len(vlist2[i]) == 0:
list1.append(string.atoi(vlist1[i]))
list2.append(0)
# Let's make life easy and use integers unless we're forced to use floats
elif (vlist1[i][0] != "0" and vlist2[i][0] != "0"):
list1.append(string.atoi(vlist1[i]))
list2.append(string.atoi(vlist2[i]))
# now we have to use floats so 1.02 compares correctly against 1.1
else:
list1.append(string.atof("0."+vlist1[i]))
list2.append(string.atof("0."+vlist2[i]))
# and now the final letter
if len(match1.group(5)):
list1.append(ord(match1.group(5)))
if len(match2.group(5)):
list2.append(ord(match2.group(5)))
for i in range(0, max(len(list1), len(list2))):
if len(list1) <= i:
vercmp_cache[mykey] = -1
return -1
elif len(list2) <= i:
vercmp_cache[mykey] = 1
return 1
elif list1[i] != list2[i]:
vercmp_cache[mykey] = list1[i] - list2[i]
return list1[i] - list2[i]
# main version is equal, so now compare the _suffix part
list1 = match1.group(6).split("_")[1:]
list2 = match2.group(6).split("_")[1:]
for i in range(0, max(len(list1), len(list2))):
if len(list1) <= i:
s1 = ("p","0")
else:
s1 = suffix_regexp.match(list1[i]).groups()
if len(list2) <= i:
s2 = ("p","0")
else:
s2 = suffix_regexp.match(list2[i]).groups()
if s1[0] != s2[0]:
return suffix_value[s1[0]] - suffix_value[s2[0]]
if s1[1] != s2[1]:
# it's possible that the s(1|2)[1] == ''
# in such a case, fudge it.
try: r1 = string.atoi(s1[1])
except ValueError: r1 = 0
try: r2 = string.atoi(s2[1])
except ValueError: r2 = 0
return r1 - r2
# the suffix part is equal to, so finally check the revision
if match1.group(10):
r1 = string.atoi(match1.group(10))
else:
r1 = 0
if match2.group(10):
r2 = string.atoi(match2.group(10))
else:
r2 = 0
vercmp_cache[mykey] = r1 - r2
return r1 - r2
def pkgcmp(pkg1, pkg2):
if pkg1[0] != pkg2[0]:
return None
mycmp=vercmp(pkg1[1],pkg2[1])
if mycmp>0:
return 1
if mycmp<0:
return -1
r1=string.atof(pkg1[2][1:])
r2=string.atof(pkg2[2][1:])
if r1>r2:
return 1
if r2>r1:
return -1
return 0
pkgcache={}
def pkgsplit(mypkg,silent=1):
try:
if not pkgcache[mypkg]:
return None
return pkgcache[mypkg][:]
except KeyError:
pass
myparts=string.split(mypkg,'-')
if len(myparts)<2:
if not silent:
print "!!! Name error in",mypkg+": missing a version or name part."
pkgcache[mypkg]=None
return None
for x in myparts:
if len(x)==0:
if not silent:
print "!!! Name error in",mypkg+": empty \"-\" part."
pkgcache[mypkg]=None
return None
#verify rev
revok=0
myrev=myparts[-1]
if len(myrev) and myrev[0]=="r":
try:
string.atoi(myrev[1:])
revok=1
except:
pass
if revok:
verPos = -2
revision = myparts[-1]
else:
verPos = -1
revision = "r0"
if ververify(myparts[verPos]):
if len(myparts)== (-1*verPos):
pkgcache[mypkg]=None
return None
else:
for x in myparts[:verPos]:
if ververify(x):
pkgcache[mypkg]=None
return None
#names can't have versiony looking parts
myval=[string.join(myparts[:verPos],"-"),myparts[verPos],revision]
pkgcache[mypkg]=myval
return myval
else:
pkgcache[mypkg]=None
return None
catcache={}
def catpkgsplit(mydata,silent=1):
"returns [cat, pkgname, version, rev ]"
try:
if not catcache[mydata]:
return None
return catcache[mydata][:]
except KeyError:
pass
mysplit=mydata.split("/")
p_split=None
if len(mysplit)==1:
retval=["null"]
p_split=pkgsplit(mydata,silent=silent)
elif len(mysplit)==2:
retval=[mysplit[0]]
p_split=pkgsplit(mysplit[1],silent=silent)
if not p_split:
catcache[mydata]=None
return None
retval.extend(p_split)
catcache[mydata]=retval
return retval
def catsplit(mydep):
return mydep.split("/", 1)
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