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authorZac Medico <zmedico@gentoo.org>2006-04-17 02:52:46 +0000
committerZac Medico <zmedico@gentoo.org>2006-04-17 02:52:46 +0000
commit98b65b28966b61d1bc4f466ef403e07fda53ea5b (patch)
tree94a3208b2bd84b5cf401c2be2bba82eaf909920c
parenttouchup emerge --help: reorder and wrap lines. credit goes to Benno Schulenbe... (diff)
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Avoid rewritting the Manifest whenever possible by comparing the existing manifest entries to the ones that will be written.v2.1_pre9
svn path=/main/trunk/; revision=3168
-rw-r--r--pym/portage_manifest.py224
1 files changed, 154 insertions, 70 deletions
diff --git a/pym/portage_manifest.py b/pym/portage_manifest.py
index 96abc750..b062c70a 100644
--- a/pym/portage_manifest.py
+++ b/pym/portage_manifest.py
@@ -26,7 +26,78 @@ def manifest2MiscfileFilter(filename):
filename = filename.strip(os.sep)
return not (filename in ["CVS", ".svn", "files", "Manifest"] or filename.endswith(".ebuild"))
+def guessManifestFileType(filename):
+ """ Perform a best effort guess of which type the given filename is, avoid using this if possible """
+ if filename.startswith("files" + os.sep + "digest-"):
+ return None
+ if filename.startswith("files" + os.sep):
+ return "AUX"
+ elif filename.endswith(".ebuild"):
+ return "EBUILD"
+ elif filename in ["ChangeLog", "metadata.xml"]:
+ return "MISC"
+ else:
+ return "DIST"
+
+def parseManifest2(mysplit):
+ myentry = None
+ if len(mysplit) > 4 and mysplit[0] in portage_const.MANIFEST2_IDENTIFIERS:
+ mytype = mysplit[0]
+ myname = mysplit[1]
+ mysize = int(mysplit[2])
+ myhashes = dict(zip(mysplit[3::2], mysplit[4::2]))
+ myhashes["size"] = mysize
+ myentry = Manifest2Entry(type=mytype, name=myname, hashes=myhashes)
+ return myentry
+
+def parseManifest1(mysplit):
+ myentry = None
+ if len(mysplit) == 4 and mysplit[0] in ["size"] + portage_const.MANIFEST1_HASH_FUNCTIONS:
+ myname = mysplit[2]
+ mytype = None
+ mytype = guessManifestFileType(myname)
+ if mytype == "AUX":
+ if myname.startswith("files" + os.path.sep):
+ myname = myname[6:]
+ mysize = int(mysplit[3])
+ myhashes = {mysplit[0]: mysplit[1]}
+ myhashes["size"] = mysize
+ myentry = Manifest1Entry(type=mytype, name=myname, hashes=myhashes)
+ return myentry
+
+class ManifestEntry(object):
+ __slots__ = ("type", "name", "hashes")
+ def __init__(self, **kwargs):
+ for k, v in kwargs.iteritems():
+ setattr(self, k, v)
+ def __cmp__(self, other):
+ if str(self) == str(other):
+ return 0
+ return 1
+
+class Manifest1Entry(ManifestEntry):
+ def __str__(self):
+ myhashkeys = self.hashes.keys()
+ for hashkey in myhashkeys:
+ if hashkey != "size":
+ break
+ hashvalue = self.hashes[hashkey]
+ myname = self.name
+ if self.type == "AUX" and not myname.startswith("files" + os.sep):
+ myname = os.path.join("files", myname)
+ return " ".join([hashkey, str(hashvalue), myname, str(self.hashes["size"])])
+
+class Manifest2Entry(ManifestEntry):
+ def __str__(self):
+ myline = " ".join([self.type, self.name, str(self.hashes["size"])])
+ myhashkeys = self.hashes.keys()
+ myhashkeys.sort()
+ for h in myhashkeys:
+ myline += " " + h + " " + str(self.hashes[h])
+ return myline
+
class Manifest(object):
+ parsers = (parseManifest2, parseManifest1)
def __init__(self, pkgdir, fetchlist_dict, distdir, manifest1_compat=True, from_scratch=False):
""" create new Manifest instance for package in pkgdir
and add compability entries for old portage versions if manifest1_compat == True.
@@ -45,20 +116,8 @@ class Manifest(object):
self.compat = manifest1_compat
self.fetchlist_dict = fetchlist_dict
self.distdir = distdir
-
- def guessType(self, filename):
- """ Perform a best effort guess of which type the given filename is, avoid using this if possible """
- if filename.startswith("files"+os.sep+"digest-"):
- return None
- if filename.startswith("files"+os.sep):
- return "AUX"
- elif filename.endswith(".ebuild"):
- return "EBUILD"
- elif filename in ["ChangeLog", "metadata.xml"]:
- return "MISC"
- else:
- return "DIST"
-
+ self.guessType = guessManifestFileType
+
def getFullname(self):
""" Returns the absolute path to the Manifest file for this instance """
return os.path.join(self.pkgdir, "Manifest")
@@ -80,11 +139,11 @@ class Manifest(object):
myhashdict = {}
for d in os.listdir(os.path.join(self.pkgdir, "files")):
if d.startswith("digest-"):
- self._readManifest(os.path.join(self.pkgdir, "files", d),
+ self._readManifest(os.path.join(self.pkgdir, "files", d), mytype="DIST",
myhashdict=myhashdict)
return myhashdict
- def _readManifest(self, file_path, myhashdict=None):
+ def _readManifest(self, file_path, myhashdict=None, **kwargs):
"""Parse a manifest or an old style digest. If myhashdict is given
then data will be added too it. Otherwise, a new dict will be created
and returned."""
@@ -92,9 +151,8 @@ class Manifest(object):
fd = open(file_path, "r")
if myhashdict is None:
myhashdict = {}
- mylines = fd.readlines()
+ self._parseDigests(fd, myhashdict=myhashdict, **kwargs)
fd.close()
- self._parseDigests(mylines, myhashdict=myhashdict)
return myhashdict
except (OSError, IOError), e:
if e.errno == errno.ENOENT:
@@ -109,35 +167,34 @@ class Manifest(object):
except FileNotFound:
pass
self._readDigests(myhashdict=self.fhashdict)
+
- def _parseDigests(self, mylines, myhashdict=None):
+ def _parseManifestLines(self, mylines):
+ """Parse manifest lines and return a list of manifest entries."""
+ for myline in mylines:
+ myentry = None
+ mysplit = myline.split()
+ for parser in self.parsers:
+ myentry = parser(mysplit)
+ if myentry is not None:
+ yield myentry
+ break # go to the next line
+
+ def _parseDigests(self, mylines, myhashdict=None, mytype=None):
+ """Parse manifest entries and store the data in myhashdict. If mytype
+ is specified, it will override the type for all parsed entries."""
if myhashdict is None:
myhashdict = {}
- for l in mylines:
- myname = ""
- mysplit = l.split()
- if len(mysplit) == 4 and mysplit[0] in portage_const.MANIFEST1_HASH_FUNCTIONS:
- myname = mysplit[2]
- mytype = self.guessType(myname)
- if mytype == "AUX" and myname.startswith("files"+os.sep):
- myname = myname[6:]
- if mytype is None:
- continue
- mysize = int(mysplit[3])
- myhashes = {mysplit[0]: mysplit[1]}
- if len(mysplit) > 4 and mysplit[0] in portage_const.MANIFEST2_IDENTIFIERS:
- mytype = mysplit[0]
- myname = mysplit[1]
- mysize = int(mysplit[2])
- myhashes = dict(zip(mysplit[3::2], mysplit[4::2]))
- if len(myname) == 0:
- continue
- myhashdict.setdefault(mytype, {})
- myhashdict[mytype].setdefault(myname, {})
- myhashdict[mytype][myname].update(myhashes)
- myhashdict[mytype][myname]["size"] = mysize
+ for myentry in self._parseManifestLines(mylines):
+ if mytype is None:
+ myentry_type = myentry.type
+ else:
+ myentry_type = mytype
+ myhashdict.setdefault(myentry_type, {})
+ myhashdict[myentry_type].setdefault(myentry.name, {})
+ myhashdict[myentry_type][myentry.name].update(myentry.hashes)
return myhashdict
-
+
def _writeDigests(self, force=False):
""" Create old style digest files for this Manifest instance """
cpvlist = [os.path.join(self._pkgdir_category(), x[:-7]) for x in os.listdir(self.pkgdir) if x.endswith(".ebuild")]
@@ -165,7 +222,7 @@ class Manifest(object):
if not force:
try:
f = open(dname, "r")
- old_data = self._parseDigests(f.readlines())
+ old_data = self._parseDigests(f)
f.close()
if len(old_data) == 1 and "DIST" in old_data:
new_data = self._getDigestData(distlist)
@@ -223,46 +280,73 @@ class Manifest(object):
mylines.append((" ".join([h, str(myhashes[h]), os.path.join("files", os.path.basename(dname)), str(myhashes["size"])])))
fd.write("\n".join(mylines))
fd.write("\n")
-
- def _write(self, fd):
- """ Actual Manifest file generator """
- mylines = []
+
+ def _createManifestEntries(self):
mytypes = self.fhashdict.keys()
mytypes.sort()
for t in mytypes:
myfiles = self.fhashdict[t].keys()
myfiles.sort()
for f in myfiles:
- # compat hack for v1 manifests
- if t == "AUX":
- f2 = os.path.join("files", f)
- else:
- f2 = f
- myline = " ".join([t, f, str(self.fhashdict[t][f]["size"])])
- myhashes = self.fhashdict[t][f]
- myhashkeys = myhashes.keys()
- myhashkeys.sort()
+ myentry = Manifest2Entry(
+ type=t, name=f, hashes=self.fhashdict[t][f].copy())
+ myhashkeys = myentry.hashes.keys()
for h in myhashkeys:
- if h not in portage_const.MANIFEST2_HASH_FUNCTIONS:
- continue
- myline += " "+h+" "+str(myhashes[h])
- mylines.append(myline)
+ if h not in ["size"] + portage_const.MANIFEST2_HASH_FUNCTIONS:
+ del myentry.hashes[h]
+ yield myentry
if self.compat and t != "DIST":
+ mysize = self.fhashdict[t][f]["size"]
+ myhashes = self.fhashdict[t][f]
for h in myhashkeys:
if h not in portage_const.MANIFEST1_HASH_FUNCTIONS:
continue
- mylines.append((" ".join([h, str(myhashes[h]), f2, str(myhashes["size"])])))
- fd.write("\n".join(mylines))
- fd.write("\n")
+ yield Manifest1Entry(
+ type=t, name=f, hashes={"size":mysize, h:myhashes[h]})
+
+ if self.compat:
+ cvp_list = self.fetchlist_dict.keys()
+ cvp_list.sort()
+ for cpv in cvp_list:
+ digest_path = os.path.join("files", "digest-%s" % self._catsplit(cpv)[1])
+ dname = os.path.join(self.pkgdir, digest_path)
+ try:
+ myhashes = perform_multiple_checksums(dname, portage_const.MANIFEST1_HASH_FUNCTIONS+["size"])
+ myhashkeys = myhashes.keys()
+ myhashkeys.sort()
+ for h in myhashkeys:
+ yield Manifest1Entry(type="AUX", name=digest_path,
+ hashes={"size":myhashes["size"], h:myhashes[h]})
+ except FileNotFound:
+ pass
- def write(self, sign=False):
+ def write(self, sign=False, force=False):
""" Write Manifest instance to disk, optionally signing it """
- fd = open(self.getFullname(), "w")
- self._write(fd)
if self.compat:
- digests = self._writeDigests()
- self._addDigestsToManifest(digests, fd)
- fd.close()
+ self._writeDigests()
+ myentries = list(self._createManifestEntries())
+ update_manifest = True
+ if not force:
+ try:
+ f = open(self.getFullname(), "r")
+ oldentries = list(self._parseManifestLines(f))
+ f.close()
+ if len(oldentries) == len(myentries):
+ update_manifest = False
+ for i in xrange(len(oldentries)):
+ if oldentries[i] != myentries[i]:
+ update_manifest = True
+ break
+ except (IOError, OSError), e:
+ if e.errno == errno.ENOENT:
+ pass
+ else:
+ raise
+ if update_manifest:
+ fd = open(self.getFullname(), "w")
+ for myentry in myentries:
+ fd.write("%s\n" % str(myentry))
+ fd.close()
if sign:
self.sign()