def test_xml_parser_other_repo02(self):
userdata = {
"pkgs": [],
"pkgcb_calls": 0,
"warnings": []
}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def pkgcb(pkg):
userdata["pkgcb_calls"] += 1
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(REPO_02_OTHXML, newpkgcb, pkgcb, warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
['fake_bash', 'super_kernel'])
self.assertEqual(userdata["pkgcb_calls"], 2)
self.assertEqual(userdata["warnings"], [])
def test_xml_parser_other_warnings(self):
userdata = {
"pkgs": [],
"warnings": []
}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(OTHER_MULTI_WARN_00_PATH,
newpkgcb,
None,
warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
[None, 'super_kernel'])
self.assertEqual(userdata["warnings"],
[(1, 'Missing attribute "name" of a package element'),
(0, 'Unknown element "bar"'),
(3, 'Conversion of "xxx" to integer failed')])
def test_xml_parser_other_snippet02(self):
userdata = {
"pkgs": [],
"pkgcb_calls": 0,
"warnings": []
}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def pkgcb(pkg):
userdata["pkgcb_calls"] += 1
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(REPO_02_OTHXML, newpkgcb, pkgcb, warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
['fake_bash', 'super_kernel'])
self.assertEqual(userdata["pkgcb_calls"], 2)
self.assertEqual(userdata["warnings"], [])
def test_xml_parser_other_warnings(self):
userdata = {
"pkgs": [],
"warnings": []
}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(OTHER_MULTI_WARN_00_PATH,
newpkgcb,
None,
warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
[None, 'super_kernel'])
self.assertEqual(userdata["warnings"],
[(1, 'Missing attribute "name" of a package element'),
(0, 'Unknown element "bar"'),
(3, 'Conversion of "xxx" to integer failed')])
def test_xml_parser_other_repo01(self):
userdata = {"pkgs": [], "pkgcb_calls": 0, "warnings": []}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def pkgcb(pkg):
userdata["pkgcb_calls"] += 1
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(REPO_01_OTHXML, newpkgcb, pkgcb, warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
['super_kernel'])
self.assertEqual(userdata["pkgcb_calls"], 1)
self.assertEqual(userdata["warnings"], [])
pkg = userdata["pkgs"][0]
self.assertEqual(
pkg.pkgId,
"152824bff2aa6d54f429d43e87a3ff3a0286505c6d93ec87692b5e3a9e3b97bf")
self.assertEqual(pkg.name, "super_kernel")
self.assertEqual(pkg.arch, "x86_64")
self.assertEqual(pkg.version, "6.0.1")
self.assertEqual(pkg.epoch, "0")
self.assertEqual(pkg.release, "2")
self.assertEqual(pkg.summary, None)
self.assertEqual(pkg.description, None)
self.assertEqual(pkg.url, None)
self.assertEqual(pkg.time_file, 0)
self.assertEqual(pkg.time_build, 0)
self.assertEqual(pkg.rpm_license, None)
self.assertEqual(pkg.rpm_vendor, None)
self.assertEqual(pkg.rpm_group, None)
self.assertEqual(pkg.rpm_buildhost, None)
self.assertEqual(pkg.rpm_sourcerpm, None)
self.assertEqual(pkg.rpm_header_start, 0)
self.assertEqual(pkg.rpm_header_end, 0)
self.assertEqual(pkg.rpm_packager, None)
self.assertEqual(pkg.size_package, 0)
self.assertEqual(pkg.size_installed, 0)
self.assertEqual(pkg.size_archive, 0)
self.assertEqual(pkg.location_href, None)
self.assertEqual(pkg.location_base, None)
self.assertEqual(pkg.checksum_type, None)
self.assertEqual(pkg.requires, [])
self.assertEqual(pkg.provides, [])
self.assertEqual(pkg.conflicts, [])
self.assertEqual(pkg.obsoletes, [])
self.assertEqual(pkg.files, [])
self.assertEqual(pkg.changelogs,
[('Tomas Mlcoch <*****@*****.**> - 6.0.1-1',
1334664000, '- First release'),
('Tomas Mlcoch <*****@*****.**> - 6.0.1-2',
1334664001, '- Second release')])
async def parse_repodata(primary_xml_path, filelists_xml_path,
other_xml_path):
"""
Parse repodata to extract package info.
Args:
primary_xml_path(str): a path to a downloaded primary.xml
filelists_xml_path(str): a path to a downloaded filelists.xml
other_xml_path(str): a path to a downloaded other.xml
Returns:
dict: createrepo_c package objects with the pkgId as a key
"""
def pkgcb(pkg):
"""
A callback which is used when a whole package entry in xml is parsed.
Args:
pkg(preaterepo_c.Package): a parsed metadata for a package
"""
packages[pkg.pkgId] = pkg
def newpkgcb(pkgId, name, arch):
"""
A callback which is used when a new package entry is encountered.
Only opening <package> element is parsed at that moment.
This function has to return a package which parsed data will be added to
or None if a package should be skipped.
pkgId, name and arch of a package can be used to skip further parsing. Available
only for filelists.xml and other.xml.
Args:
pkgId(str): pkgId of a package
name(str): name of a package
arch(str): arch of a package
Returns:
createrepo_c.Package: a package which parsed data should be added to.
If None is returned, further parsing of a package will be skipped.
"""
return packages.get(pkgId, None)
packages = {}
# TODO: handle parsing errors/warnings, warningcb callback can be used below
cr.xml_parse_primary(primary_xml_path, pkgcb=pkgcb, do_files=False)
cr.xml_parse_filelists(filelists_xml_path, newpkgcb=newpkgcb)
cr.xml_parse_other(other_xml_path, newpkgcb=newpkgcb)
return packages
async def parse_repodata(primary_xml_path, filelists_xml_path, other_xml_path):
"""
Parse repodata to extract package info.
Args:
primary_xml_path(str): a path to a downloaded primary.xml
filelists_xml_path(str): a path to a downloaded filelists.xml
other_xml_path(str): a path to a downloaded other.xml
Returns:
dict: createrepo_c package objects with the pkgId as a key
"""
def pkgcb(pkg):
"""
A callback which is used when a whole package entry in xml is parsed.
Args:
pkg(preaterepo_c.Package): a parsed metadata for a package
"""
packages[pkg.pkgId] = pkg
def newpkgcb(pkgId, name, arch):
"""
A callback which is used when a new package entry is encountered.
Only opening <package> element is parsed at that moment.
This function has to return a package which parsed data will be added to
or None if a package should be skipped.
pkgId, name and arch of a package can be used to skip further parsing. Available
only for filelists.xml and other.xml.
Args:
pkgId(str): pkgId of a package
name(str): name of a package
arch(str): arch of a package
Returns:
createrepo_c.Package: a package which parsed data should be added to.
If None is returned, further parsing of a package will be skipped.
"""
return packages.get(pkgId, None)
packages = {}
# TODO: handle parsing errors/warnings, warningcb callback can be used below
cr.xml_parse_primary(primary_xml_path, pkgcb=pkgcb, do_files=False)
cr.xml_parse_filelists(filelists_xml_path, newpkgcb=newpkgcb)
cr.xml_parse_other(other_xml_path, newpkgcb=newpkgcb)
return packages
def test_xml_parser_other_repo02_only_pkgcb(self):
pkgs = []
def pkgcb(pkg):
pkgs.append(pkg)
cr.xml_parse_other(REPO_02_OTHXML, None, pkgcb, None)
self.assertEqual([pkg.name for pkg in pkgs],
['fake_bash', 'super_kernel'])
def test_xml_parser_other_repo02_only_pkgcb(self):
pkgs = []
def pkgcb(pkg):
pkgs.append(pkg)
cr.xml_parse_other(REPO_02_OTHXML, None, pkgcb, None)
self.assertEqual([pkg.name for pkg in pkgs],
['fake_bash', 'super_kernel'])
def gen(self, metadata):
# Check input arguments
if "primary" not in metadata:
self._error("primary.xml metadata file is missing")
raise DeltaRepoPluginError("Primary metadata missing")
gen_repomd_recs = []
# Medadata info that will be persistently stored
metadata_notes = {}
pri_md = metadata.get("primary")
fil_md = metadata.get("filelists")
oth_md = metadata.get("other")
def try_simple_delta(md, force_gen=False):
"""Try to do simple delta. If successful, return True"""
rc, rec, notes = self._gen_basic_delta(md, force_gen=force_gen)
if not rc:
return False
if rec:
gen_repomd_recs.append(rec)
if not notes:
notes = {}
if metadata.get(md.metadata_type + "_db").new_fn_exists:
notes["database"] = "1"
else:
notes["database"] = "0"
self._metadata_notes_to_plugin_bundle(md.metadata_type, notes)
return True
# At first try to do simple delta for primary
# If successful, force simple delta for filelists and other too
simple_pri_delta = try_simple_delta(pri_md)
simple_fil_delta = try_simple_delta(fil_md, force_gen=simple_pri_delta)
simple_oth_delta = try_simple_delta(oth_md, force_gen=simple_pri_delta)
if simple_pri_delta:
# Simple delta for primary means that simple deltas were done
# for all other metadata too
return gen_repomd_recs
# At this point we know that simple delta for the primary wasn't done
# This mean that at lest for primary, both metadata files (the new one
# and the old one) exists, and we have to do a more sophisticated delta
# Ignore files for which, the simple delta was successful
if simple_fil_delta:
fil_md = None
if simple_oth_delta:
oth_md = None
# Prepare output xml files and check if dbs should be generated
# Note: This information are stored directly to the Metadata
# object which someone could see as little hacky.
def prepare_paths_in_metadata(md, xmlclass):
if md is None:
return None
# Make a note about if the database should be generated
db_available = metadata.get(md.metadata_type + "_db").new_fn_exists
if db_available or self.globalbundle.force_database:
metadata_notes.setdefault(md.metadata_type,
{})["database"] = "1"
else:
metadata_notes.setdefault(md.metadata_type,
{})["database"] = "0"
suffix = cr.compression_suffix(md.compression_type) or ""
md.delta_fn = os.path.join(
md.out_dir, "{0}.xml{1}".format(md.metadata_type, suffix))
md.delta_f_stat = cr.ContentStat(md.checksum_type)
md.delta_f = xmlclass(md.delta_fn, md.compression_type,
md.delta_f_stat)
return md
# Primary
pri_md = prepare_paths_in_metadata(pri_md, cr.PrimaryXmlFile)
# Filelists
fil_md = prepare_paths_in_metadata(fil_md, cr.FilelistsXmlFile)
# Other
oth_md = prepare_paths_in_metadata(oth_md, cr.OtherXmlFile)
# Gen delta
old_packages = set()
added_packages = {} # dict { 'pkgId': pkg }
added_packages_ids = [] # list of package ids
old_contenthash_strings = []
new_contenthash_strings = []
def old_pkgcb(pkg):
old_packages.add(self._pkg_id_tuple(pkg))
old_contenthash_strings.append(self._pkg_id_str(pkg))
def new_pkgcb(pkg):
new_contenthash_strings.append(self._pkg_id_str(pkg))
pkg_id_tuple = self._pkg_id_tuple(pkg)
if not pkg_id_tuple in old_packages:
# This package is only in new repodata
added_packages[pkg.pkgId] = pkg
added_packages_ids.append(pkg.pkgId)
else:
# This package is also in the old repodata
old_packages.remove(pkg_id_tuple)
filelists_from_primary = True
if fil_md:
# Filelists will be parsed from filelists
filelists_from_primary = False
cr.xml_parse_primary(pri_md.old_fn, pkgcb=old_pkgcb, do_files=False)
cr.xml_parse_primary(pri_md.new_fn,
pkgcb=new_pkgcb,
do_files=filelists_from_primary)
# Calculate content hashes
h = hashlib.new(self.globalbundle.contenthash_type_str)
old_contenthash_strings.sort()
for i in old_contenthash_strings:
h.update(i)
src_contenthash = h.hexdigest()
self.globalbundle.calculated_old_contenthash = src_contenthash
h = hashlib.new(self.globalbundle.contenthash_type_str)
new_contenthash_strings.sort()
for i in new_contenthash_strings:
h.update(i)
dst_contenthash = h.hexdigest()
self.globalbundle.calculated_new_contenthash = dst_contenthash
# Set the content hashes to the plugin bundle
self.pluginbundle.set("contenthash_type",
self.globalbundle.contenthash_type_str)
self.pluginbundle.set("src_contenthash", src_contenthash)
self.pluginbundle.set("dst_contenthash", dst_contenthash)
# Prepare list of removed packages
removed_pkgs = sorted(old_packages)
for _, location_href, location_base in removed_pkgs:
dictionary = {"location_href": location_href}
if location_base:
dictionary["location_base"] = location_base
self.pluginbundle.append("removedpackage", dictionary)
num_of_packages = len(added_packages)
# Filelists and Other cb
def newpkgcb(pkgId, name, arch):
return added_packages.get(pkgId, None)
# Parse filelist.xml and write out its delta
if fil_md:
cr.xml_parse_filelists(fil_md.new_fn, newpkgcb=newpkgcb)
fil_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
fil_md.delta_f.add_pkg(added_packages[pkgid])
fil_md.delta_f.close()
# Parse other.xml and write out its delta
if oth_md:
cr.xml_parse_other(oth_md.new_fn, newpkgcb=newpkgcb)
oth_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
oth_md.delta_f.add_pkg(added_packages[pkgid])
oth_md.delta_f.close()
# Write out primary delta
# Note: Writing of primary delta has to be after parsing of filelists
# Otherwise cause missing files if filelists_from_primary was False
pri_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
pri_md.delta_f.add_pkg(added_packages[pkgid])
pri_md.delta_f.close()
# Finish metadata
def finish_metadata(md):
if md is None:
return
# Close XML file
md.delta_f.close()
# Prepare repomd record of xml file
rec = cr.RepomdRecord(md.metadata_type, md.delta_fn)
rec.load_contentstat(md.delta_f_stat)
rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
rec.rename_file()
md.delta_rec = rec
md.delta_fn_exists = True
gen_repomd_recs.append(rec)
# Prepare database
if hasattr(md, "db") and md.db:
md.db.dbinfo_update(rec.checksum)
md.db.close()
db_stat = cr.ContentStat(md.checksum_type)
db_compressed = md.db_fn + ".bz2"
cr.compress_file(md.db_fn, None, cr.BZ2, db_stat)
os.remove(md.db_fn)
# Prepare repomd record of database file
db_rec = cr.RepomdRecord("{0}_db".format(md.metadata_type),
db_compressed)
db_rec.load_contentstat(db_stat)
db_rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
db_rec.rename_file()
gen_repomd_recs.append(db_rec)
# Add records to medata objects
finish_metadata(pri_md)
finish_metadata(fil_md)
finish_metadata(oth_md)
# Store data persistently
for metadata_type, notes in metadata_notes.items():
self._metadata_notes_to_plugin_bundle(metadata_type, notes)
return gen_repomd_recs
def gen(self, metadata):
# Check input arguments
if "primary" not in metadata:
self._error("primary.xml metadata file is missing")
raise DeltaRepoPluginError("Primary metadata missing")
gen_repomd_recs = []
# Medadata info that will be persistently stored
metadata_notes = {}
pri_md = metadata.get("primary")
fil_md = metadata.get("filelists")
oth_md = metadata.get("other")
def try_simple_delta(md, force_gen=False):
"""Try to do simple delta. If successful, return True"""
rc, rec, notes = self._gen_basic_delta(md, force_gen=force_gen)
if not rc:
return False
if rec:
gen_repomd_recs.append(rec)
if not notes:
notes = {}
if metadata.get(md.metadata_type+"_db").new_fn_exists:
notes["database"] = "1"
else:
notes["database"] = "0"
self._metadata_notes_to_plugin_bundle(md.metadata_type, notes)
return True
# At first try to do simple delta for primary
# If successful, force simple delta for filelists and other too
simple_pri_delta = try_simple_delta(pri_md)
simple_fil_delta = try_simple_delta(fil_md, force_gen=simple_pri_delta)
simple_oth_delta = try_simple_delta(oth_md, force_gen=simple_pri_delta)
if simple_pri_delta:
# Simple delta for primary means that simple deltas were done
# for all other metadata too
return gen_repomd_recs
# At this point we know that simple delta for the primary wasn't done
# This mean that at lest for primary, both metadata files (the new one
# and the old one) exists, and we have to do a more sophisticated delta
# Ignore files for which, the simple delta was successful
if simple_fil_delta:
fil_md = None
if simple_oth_delta:
oth_md = None
# Prepare output xml files and check if dbs should be generated
# Note: This information are stored directly to the Metadata
# object which someone could see as little hacky.
def prepare_paths_in_metadata(md, xmlclass):
if md is None:
return None
# Make a note about if the database should be generated
db_available = metadata.get(md.metadata_type+"_db").new_fn_exists
if db_available or self.globalbundle.force_database:
metadata_notes.setdefault(md.metadata_type, {})["database"] = "1"
else:
metadata_notes.setdefault(md.metadata_type, {})["database"] = "0"
suffix = cr.compression_suffix(md.compression_type) or ""
md.delta_fn = os.path.join(md.out_dir,
"{0}.xml{1}".format(
md.metadata_type, suffix))
md.delta_f_stat = cr.ContentStat(md.checksum_type)
md.delta_f = xmlclass(md.delta_fn,
md.compression_type,
md.delta_f_stat)
return md
# Primary
pri_md = prepare_paths_in_metadata(pri_md, cr.PrimaryXmlFile)
# Filelists
fil_md = prepare_paths_in_metadata(fil_md, cr.FilelistsXmlFile)
# Other
oth_md = prepare_paths_in_metadata(oth_md, cr.OtherXmlFile)
# Gen delta
old_packages = set()
added_packages = {} # dict { 'pkgId': pkg }
added_packages_ids = [] # list of package ids
old_contenthash_strings = []
new_contenthash_strings = []
def old_pkgcb(pkg):
old_packages.add(self._pkg_id_tuple(pkg))
old_contenthash_strings.append(self._pkg_id_str(pkg))
def new_pkgcb(pkg):
new_contenthash_strings.append(self._pkg_id_str(pkg))
pkg_id_tuple = self._pkg_id_tuple(pkg)
if not pkg_id_tuple in old_packages:
# This package is only in new repodata
added_packages[pkg.pkgId] = pkg
added_packages_ids.append(pkg.pkgId)
else:
# This package is also in the old repodata
old_packages.remove(pkg_id_tuple)
filelists_from_primary = True
if fil_md:
# Filelists will be parsed from filelists
filelists_from_primary = False
cr.xml_parse_primary(pri_md.old_fn, pkgcb=old_pkgcb, do_files=False)
cr.xml_parse_primary(pri_md.new_fn, pkgcb=new_pkgcb,
do_files=filelists_from_primary)
# Calculate content hashes
h = hashlib.new(self.globalbundle.contenthash_type_str)
old_contenthash_strings.sort()
for i in old_contenthash_strings:
h.update(i)
src_contenthash = h.hexdigest()
self.globalbundle.calculated_old_contenthash = src_contenthash
h = hashlib.new(self.globalbundle.contenthash_type_str)
new_contenthash_strings.sort()
for i in new_contenthash_strings:
h.update(i)
dst_contenthash = h.hexdigest()
self.globalbundle.calculated_new_contenthash = dst_contenthash
# Set the content hashes to the plugin bundle
self.pluginbundle.set("contenthash_type", self.globalbundle.contenthash_type_str)
self.pluginbundle.set("src_contenthash", src_contenthash)
self.pluginbundle.set("dst_contenthash", dst_contenthash)
# Prepare list of removed packages
removed_pkgs = sorted(old_packages)
for _, location_href, location_base in removed_pkgs:
dictionary = {"location_href": location_href}
if location_base:
dictionary["location_base"] = location_base
self.pluginbundle.append("removedpackage", dictionary)
num_of_packages = len(added_packages)
# Filelists and Other cb
def newpkgcb(pkgId, name, arch):
return added_packages.get(pkgId, None)
# Parse filelist.xml and write out its delta
if fil_md:
cr.xml_parse_filelists(fil_md.new_fn, newpkgcb=newpkgcb)
fil_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
fil_md.delta_f.add_pkg(added_packages[pkgid])
fil_md.delta_f.close()
# Parse other.xml and write out its delta
if oth_md:
cr.xml_parse_other(oth_md.new_fn, newpkgcb=newpkgcb)
oth_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
oth_md.delta_f.add_pkg(added_packages[pkgid])
oth_md.delta_f.close()
# Write out primary delta
# Note: Writing of primary delta has to be after parsing of filelists
# Otherwise cause missing files if filelists_from_primary was False
pri_md.delta_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
pri_md.delta_f.add_pkg(added_packages[pkgid])
pri_md.delta_f.close()
# Finish metadata
def finish_metadata(md):
if md is None:
return
# Close XML file
md.delta_f.close()
# Prepare repomd record of xml file
rec = cr.RepomdRecord(md.metadata_type, md.delta_fn)
rec.load_contentstat(md.delta_f_stat)
rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
rec.rename_file()
md.delta_rec = rec
md.delta_fn_exists = True
gen_repomd_recs.append(rec)
# Prepare database
if hasattr(md, "db") and md.db:
md.db.dbinfo_update(rec.checksum)
md.db.close()
db_stat = cr.ContentStat(md.checksum_type)
db_compressed = md.db_fn+".bz2"
cr.compress_file(md.db_fn, None, cr.BZ2, db_stat)
os.remove(md.db_fn)
# Prepare repomd record of database file
db_rec = cr.RepomdRecord("{0}_db".format(md.metadata_type),
db_compressed)
db_rec.load_contentstat(db_stat)
db_rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
db_rec.rename_file()
gen_repomd_recs.append(db_rec)
# Add records to medata objects
finish_metadata(pri_md)
finish_metadata(fil_md)
finish_metadata(oth_md)
# Store data persistently
for metadata_type, notes in metadata_notes.items():
self._metadata_notes_to_plugin_bundle(metadata_type, notes)
return gen_repomd_recs
def do(self, pri_old_fn, pri_new_fn, pri_f,
fil_new_fn, fil_f, oth_new_fn, oth_f, removed):
old_packages = set()
added_packages = {} # dict { 'pkgId': pkg }
added_packages_ids = [] # list of package ids
old_repoid_strings = []
new_repoid_strings = []
def old_pkgcb(pkg):
old_packages.add(self._pkg_id_tuple(pkg))
old_repoid_strings.append(self._pkg_id_str(pkg))
def new_pkgcb(pkg):
new_repoid_strings.append(self._pkg_id_str(pkg))
pkg_id_tuple = self._pkg_id_tuple(pkg)
if not pkg_id_tuple in old_packages:
# This package is only in new repodata
added_packages[pkg.pkgId] = pkg
added_packages_ids.append(pkg.pkgId)
else:
# This package is also in the old repodata
old_packages.remove(pkg_id_tuple)
do_new_primary_files = 1
if fil_f and fil_new_fn:
# All files will be parsed from filelists
do_new_primary_files = 0
cr.xml_parse_primary(pri_old_fn, pkgcb=old_pkgcb, do_files=0)
cr.xml_parse_primary(pri_new_fn, pkgcb=new_pkgcb,
do_files=do_new_primary_files)
# Calculate RepoIds
old_repo_id = ""
new_repo_id = ""
h = hashlib.new(self.id_type)
old_repoid_strings.sort()
for i in old_repoid_strings:
h.update(i)
old_repo_id = h.hexdigest()
h = hashlib.new(self.id_type)
new_repoid_strings.sort()
for i in new_repoid_strings:
h.update(i)
new_repo_id = h.hexdigest()
removed_pkgs = sorted(old_packages)
for _, location_href, location_base in removed_pkgs:
removed.add_pkg_locations(location_href, location_base)
num_of_packages = len(added_packages)
# Filelists and Other cb
def newpkgcb(pkgId, name, arch):
return added_packages.get(pkgId, None)
# Write out filelists delta
if fil_f and fil_new_fn:
cr.xml_parse_filelists(fil_new_fn, newpkgcb=newpkgcb)
fil_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
fil_f.add_pkg(added_packages[pkgid])
fil_f.close()
# Write out other delta
if oth_f and oth_new_fn:
cr.xml_parse_other(oth_new_fn, newpkgcb=newpkgcb)
oth_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
oth_f.add_pkg(added_packages[pkgid])
oth_f.close()
# Write out primary delta
# Note: Writing of primary delta has to be after parsing of filelists
# Otherway cause missing files if do_new_primary_files was 0
pri_f.set_num_of_pkgs(num_of_packages)
for pkgid in added_packages_ids:
pri_f.add_pkg(added_packages[pkgid])
pri_f.close()
return (old_repo_id, new_repo_id)
def test_xml_parser_other_repo01(self):
userdata = {
"pkgs": [],
"pkgcb_calls": 0,
"warnings": []
}
def newpkgcb(pkgId, name, arch):
pkg = cr.Package()
userdata["pkgs"].append(pkg)
return pkg
def pkgcb(pkg):
userdata["pkgcb_calls"] += 1
def warningcb(warn_type, msg):
userdata["warnings"].append((warn_type, msg))
cr.xml_parse_other(REPO_01_OTHXML, newpkgcb, pkgcb, warningcb)
self.assertEqual([pkg.name for pkg in userdata["pkgs"]],
['super_kernel'])
self.assertEqual(userdata["pkgcb_calls"], 1)
self.assertEqual(userdata["warnings"], [])
pkg = userdata["pkgs"][0]
self.assertEqual(pkg.pkgId, "152824bff2aa6d54f429d43e87a3ff3a0286505c6d93ec87692b5e3a9e3b97bf")
self.assertEqual(pkg.name, "super_kernel")
self.assertEqual(pkg.arch, "x86_64")
self.assertEqual(pkg.version, "6.0.1")
self.assertEqual(pkg.epoch, "0")
self.assertEqual(pkg.release, "2")
self.assertEqual(pkg.summary, None)
self.assertEqual(pkg.description, None)
self.assertEqual(pkg.url, None)
self.assertEqual(pkg.time_file, 0)
self.assertEqual(pkg.time_build, 0)
self.assertEqual(pkg.rpm_license, None)
self.assertEqual(pkg.rpm_vendor, None)
self.assertEqual(pkg.rpm_group, None)
self.assertEqual(pkg.rpm_buildhost, None)
self.assertEqual(pkg.rpm_sourcerpm, None)
self.assertEqual(pkg.rpm_header_start, 0)
self.assertEqual(pkg.rpm_header_end, 0)
self.assertEqual(pkg.rpm_packager, None)
self.assertEqual(pkg.size_package, 0)
self.assertEqual(pkg.size_installed, 0)
self.assertEqual(pkg.size_archive, 0)
self.assertEqual(pkg.location_href, None)
self.assertEqual(pkg.location_base, None)
self.assertEqual(pkg.checksum_type, None)
self.assertEqual(pkg.requires, [])
self.assertEqual(pkg.provides, [])
self.assertEqual(pkg.conflicts, [])
self.assertEqual(pkg.obsoletes, [])
self.assertEqual(pkg.files, [])
self.assertEqual(pkg.changelogs,
[('Tomas Mlcoch <*****@*****.**> - 6.0.1-1',
1334664000L,
'- First release'),
('Tomas Mlcoch <*****@*****.**> - 6.0.1-2',
1334664001L,
'- Second release')])
def second_method():
"""Prefered method for repodata parsing.
Important callbacks for repodata parsing:
newpkgcb
--------
Via newpkgcb (Package callback) you could directly
affect if the current package element shoud be parsed
or not. This decision could be based on
three values that are available as attributtes
in the <package> element. This values are:
- pkgId (package checksum)
- name (package name)
- arch (package architecture)
(Note: This is applicable only for filelists.xml and other.xml,
primary.xml doesn't contain this information in <package> element)
If newpkgcb returns a package object, the parsed data
will be loaded to this package object. If it returns a None,
package element is skiped.
This could help you to reduce a memory requirements because
non wanted packages could be skiped without need to
store them into the memory.
If no newpkgcb is specified, default callback returning
a new package object is used.
pkgcb
-----
Callback called when a <package> element parsing is done.
Its argument is a package object that has been previously
returned by the newpkgcb.
This function should return True if parsing should continue
or False if parsing should be interrupted.
Note: Both callbacks are optional, BUT at least one
MUST be used (newpkgcb or pkgcb)!
warningcb
---------
Warning callbacks is called when a non-fatal oddity of prased XML
is detected.
If True is returned, parsing continues. If return value is False,
parsing is terminated.
This callback is optional.
"""
primary_xml_path = None
filelists_xml_path = None
other_xml_path = None
#
# repomd.xml parsing
#
# Parse repomd.xml to get paths (1. Method - Repomd object based)
# Pros: Easy to use
repomd = cr.Repomd(os.path.join(REPO_PATH, "repodata/repomd.xml"))
# Parse repomd.xml (2. Method - Parser based)
# Pros: Warning callback could be specified
def warningcb(warning_type, message):
"""Optional callback for warnings about
wierd stuff and formatting in XML.
:param warning_type: Integer value. One from
the XML_WARNING_* constants.
:param message: String message.
"""
print "PARSER WARNING: %s" % message
return True
repomd2 = cr.Repomd()
cr.xml_parse_repomd(os.path.join(REPO_PATH, "repodata/repomd.xml"),
repomd2, warningcb)
# Get stuff we need
# (repomd or repomd2 could be used, both have the same values)
for record in repomd.records:
if record.type == "primary":
primary_xml_path = record.location_href
elif record.type == "filelists":
filelists_xml_path = record.location_href
elif record.type == "other":
other_xml_path = record.location_href
#
# Main XML metadata parsing (primary, filelists, other)
#
packages = {}
def pkgcb(pkg):
# Called when whole package entry in xml is parsed
packages[pkg.pkgId] = pkg
def newpkgcb(pkgId, name, arch):
# Called when new package entry is encountered
# And only opening <package> element is parsed
# This function has to return a package to which
# parsed data will be added or None if this package
# should be skiped.
return packages.get(pkgId, None)
# Option do_files tells primary parser to skip <file> element of package.
# If you plan to parse filelists.xml after the primary.xml, always
# set do_files to False.
cr.xml_parse_primary(os.path.join(REPO_PATH, primary_xml_path),
pkgcb=pkgcb,
do_files=False,
warningcb=warningcb)
cr.xml_parse_filelists(os.path.join(REPO_PATH, filelists_xml_path),
newpkgcb=newpkgcb,
warningcb=warningcb)
cr.xml_parse_other(os.path.join(REPO_PATH, other_xml_path),
newpkgcb=newpkgcb,
warningcb=warningcb)
for pkg in packages.itervalues():
print_package_info(pkg)
def apply(self, pri_old_fn, pri_delta_fn, pri_f, pri_db, fil_old_fn,
fil_delta_fn, fil_f, fil_db,oth_old_fn, oth_delta_fn, oth_f,
oth_db, removed):
removed_packages = set() # set of pkgIds (hashes)
all_packages = {} # dict { 'pkgId': pkg }
old_repoid_strings = []
new_repoid_strings = []
def old_pkgcb(pkg):
old_repoid_strings.append(self._pkg_id_str(pkg))
if pkg.location_href in removed.packages:
if removed.packages[pkg.location_href] == pkg.location_base:
# This package won't be in new metadata
return
new_repoid_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
def delta_pkgcb(pkg):
new_repoid_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
do_primary_files = 1
if fil_f and fil_delta_fn and fil_old_fn:
do_primary_files = 0
cr.xml_parse_primary(pri_old_fn, pkgcb=old_pkgcb,
do_files=do_primary_files)
cr.xml_parse_primary(pri_delta_fn, pkgcb=delta_pkgcb,
do_files=do_primary_files)
# Calculate RepoIds
old_repo_id = ""
new_repo_id = ""
h = hashlib.new(self.id_type)
old_repoid_strings.sort()
for i in old_repoid_strings:
h.update(i)
old_repo_id = h.hexdigest()
h = hashlib.new(self.id_type)
new_repoid_strings.sort()
for i in new_repoid_strings:
h.update(i)
new_repo_id = h.hexdigest()
# Sort packages
def cmp_pkgs(x, y):
# Compare only by filename
ret = cmp(os.path.basename(x.location_href),
os.path.basename(y.location_href))
if ret != 0:
return ret
# Compare by full location_href path
return cmp(x.location_href, y.location_href)
all_packages_sorted = sorted(all_packages.values(), cmp=cmp_pkgs)
def newpkgcb(pkgId, name, arch):
return all_packages.get(pkgId, None)
# Parse filelists
if fil_f and fil_delta_fn and fil_old_fn:
cr.xml_parse_filelists(fil_old_fn, newpkgcb=newpkgcb)
cr.xml_parse_filelists(fil_delta_fn, newpkgcb=newpkgcb)
# Parse other
if oth_f and oth_delta_fn and oth_old_fn:
cr.xml_parse_other(oth_old_fn, newpkgcb=newpkgcb)
cr.xml_parse_other(oth_delta_fn, newpkgcb=newpkgcb)
num_of_packages = len(all_packages_sorted)
# Write out primary
pri_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
pri_f.add_pkg(pkg)
if pri_db:
pri_db.add_pkg(pkg)
# Write out filelists
if fil_f:
fil_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
fil_f.add_pkg(pkg)
if fil_db:
fil_db.add_pkg(pkg)
# Write out other
if oth_f:
oth_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
oth_f.add_pkg(pkg)
if oth_db:
oth_db.add_pkg(pkg)
return (old_repo_id, new_repo_id)
def apply(self, metadata):
# Check input arguments
if "primary" not in metadata:
self._error("primary.xml metadata file is missing")
raise DeltaRepoPluginError("Primary metadata missing")
gen_repomd_recs = []
removed_packages = {}
pri_md = metadata.get("primary")
fil_md = metadata.get("filelists")
oth_md = metadata.get("other")
def try_simple_delta(md, dbclass):
if not md:
return
notes = self._metadata_notes_from_plugin_bundle(md.metadata_type)
if not notes:
self._warning("Metadata \"{0}\" doesn't have a record in "
"deltametadata.xml - Ignoring")
return True
rc, rec = self._apply_basic_delta(md, notes)
if not rc:
return False
if rec:
gen_repomd_recs.append(rec)
if not md.new_fn_exists:
return True
# Gen DB here
if self.globalbundle.force_database or notes.get("database") == "1":
rec = self._gen_db_from_xml(md)
gen_repomd_recs.append(rec)
return True
# At first try to simple delta
simple_pri_delta = try_simple_delta(pri_md, cr.PrimarySqlite)
simple_fil_delta = try_simple_delta(fil_md, cr.FilelistsSqlite)
simple_oth_delta = try_simple_delta(oth_md, cr.OtherSqlite)
if simple_pri_delta:
assert simple_fil_delta
assert simple_oth_delta
return gen_repomd_recs
# Ignore already processed metadata
if simple_fil_delta:
fil_md = None
if simple_oth_delta:
oth_md = None
# Make a dict of removed packages key is location_href,
# value is location_base
for record in self.pluginbundle.get_list("removedpackage", []):
location_href = record.get("location_href")
if not location_href:
continue
location_base = record.get("location_base")
removed_packages[location_href] = location_base
# Prepare output xml files and check if dbs should be generated
# Note: This information are stored directly to the Metadata
# object which someone could see as little hacky.
def prepare_paths_in_metadata(md, xmlclass, dbclass):
if md is None:
return
notes = self._metadata_notes_from_plugin_bundle(md.metadata_type)
if not notes:
# TODO: Add flag to ignore this kind of warnings (?)
self._warning("Metadata \"{0}\" doesn't have a record in "
"deltametadata.xml - Ignoring")
return
suffix = cr.compression_suffix(md.compression_type) or ""
md.new_fn = os.path.join(md.out_dir,
"{0}.xml{1}".format(
md.metadata_type, suffix))
md.new_f_stat = cr.ContentStat(md.checksum_type)
md.new_f = xmlclass(md.new_fn,
md.compression_type,
md.new_f_stat)
if self.globalbundle.force_database or notes.get("database") == "1":
md.db_fn = os.path.join(md.out_dir, "{0}.sqlite".format(
md.metadata_type))
md.db = dbclass(md.db_fn)
else:
md.db_fn = None
md.db = None
# Primary
prepare_paths_in_metadata(pri_md,
cr.PrimaryXmlFile,
cr.PrimarySqlite)
# Filelists
prepare_paths_in_metadata(fil_md,
cr.FilelistsXmlFile,
cr.FilelistsSqlite)
# Other
prepare_paths_in_metadata(oth_md,
cr.OtherXmlFile,
cr.OtherSqlite)
# Apply delta
all_packages = {} # dict { 'pkgId': pkg }
old_contenthash_strings = []
new_contenthash_strings = []
def old_pkgcb(pkg):
old_contenthash_strings.append(self._pkg_id_str(pkg))
if pkg.location_href in removed_packages:
if removed_packages[pkg.location_href] == pkg.location_base:
# This package won't be in new metadata
return
new_contenthash_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
def delta_pkgcb(pkg):
new_contenthash_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
filelists_from_primary = True
if fil_md:
filelists_from_primary = False
# Parse both old and delta primary.xml files
cr.xml_parse_primary(pri_md.old_fn, pkgcb=old_pkgcb,
do_files=filelists_from_primary)
cr.xml_parse_primary(pri_md.delta_fn, pkgcb=delta_pkgcb,
do_files=filelists_from_primary)
# Calculate content hashes
h = hashlib.new(self.globalbundle.contenthash_type_str)
old_contenthash_strings.sort()
for i in old_contenthash_strings:
h.update(i)
self.globalbundle.calculated_old_contenthash = h.hexdigest()
h = hashlib.new(self.globalbundle.contenthash_type_str)
new_contenthash_strings.sort()
for i in new_contenthash_strings:
h.update(i)
self.globalbundle.calculated_new_contenthash = h.hexdigest()
# Sort packages
def cmp_pkgs(x, y):
# Compare only by filename
ret = cmp(os.path.basename(x.location_href),
os.path.basename(y.location_href))
if ret != 0:
return ret
# Compare by full location_href path
return cmp(x.location_href, y.location_href)
all_packages_sorted = sorted(all_packages.values(), cmp=cmp_pkgs)
def newpkgcb(pkgId, name, arch):
return all_packages.get(pkgId, None)
# Parse filelists
if fil_md:
self._debug("Parsing filelists xmls")
cr.xml_parse_filelists(fil_md.old_fn, newpkgcb=newpkgcb)
cr.xml_parse_filelists(fil_md.delta_fn, newpkgcb=newpkgcb)
if oth_md:
self._debug("Parsing other xmls")
cr.xml_parse_other(oth_md.old_fn, newpkgcb=newpkgcb)
cr.xml_parse_other(oth_md.delta_fn, newpkgcb=newpkgcb)
num_of_packages = len(all_packages_sorted)
# Write out primary
self._debug("Writing primary xml: {0}".format(pri_md.new_fn))
pri_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
pri_md.new_f.add_pkg(pkg)
if pri_md.db:
pri_md.db.add_pkg(pkg)
# Write out filelists
if fil_md:
self._debug("Writing filelists xml: {0}".format(fil_md.new_fn))
fil_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
fil_md.new_f.add_pkg(pkg)
if fil_md.db:
fil_md.db.add_pkg(pkg)
# Write out other
if oth_md:
self._debug("Writing other xml: {0}".format(oth_md.new_fn))
oth_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
oth_md.new_f.add_pkg(pkg)
if oth_md.db:
oth_md.db.add_pkg(pkg)
# Finish metadata
def finish_metadata(md):
if md is None:
return
# Close XML file
md.new_f.close()
# Prepare repomd record of xml file
rec = cr.RepomdRecord(md.metadata_type, md.new_fn)
rec.load_contentstat(md.new_f_stat)
rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
rec.rename_file()
md.new_rec = rec
md.new_fn_exists = True
gen_repomd_recs.append(rec)
# Prepare database
if hasattr(md, "db") and md.db:
self._debug("Generating database: {0}".format(md.db_fn))
md.db.dbinfo_update(rec.checksum)
md.db.close()
db_stat = cr.ContentStat(md.checksum_type)
db_compressed = md.db_fn+".bz2"
cr.compress_file(md.db_fn, None, cr.BZ2, db_stat)
os.remove(md.db_fn)
# Prepare repomd record of database file
db_rec = cr.RepomdRecord("{0}_db".format(md.metadata_type),
db_compressed)
db_rec.load_contentstat(db_stat)
db_rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
db_rec.rename_file()
gen_repomd_recs.append(db_rec)
# Add records to the bundle
finish_metadata(pri_md)
finish_metadata(fil_md)
finish_metadata(oth_md)
return gen_repomd_recs
def apply(self, metadata):
# Check input arguments
if "primary" not in metadata:
self._error("primary.xml metadata file is missing")
raise DeltaRepoPluginError("Primary metadata missing")
gen_repomd_recs = []
removed_packages = {}
pri_md = metadata.get("primary")
fil_md = metadata.get("filelists")
oth_md = metadata.get("other")
def try_simple_delta(md, dbclass):
if not md:
return
notes = self._metadata_notes_from_plugin_bundle(md.metadata_type)
if not notes:
self._warning("Metadata \"{0}\" doesn't have a record in "
"deltametadata.xml - Ignoring")
return True
rc, rec = self._apply_basic_delta(md, notes)
if not rc:
return False
if rec:
gen_repomd_recs.append(rec)
if not md.new_fn_exists:
return True
# Gen DB here
if self.globalbundle.force_database or notes.get(
"database") == "1":
rec = self._gen_db_from_xml(md)
gen_repomd_recs.append(rec)
return True
# At first try to simple delta
simple_pri_delta = try_simple_delta(pri_md, cr.PrimarySqlite)
simple_fil_delta = try_simple_delta(fil_md, cr.FilelistsSqlite)
simple_oth_delta = try_simple_delta(oth_md, cr.OtherSqlite)
if simple_pri_delta:
assert simple_fil_delta
assert simple_oth_delta
return gen_repomd_recs
# Ignore already processed metadata
if simple_fil_delta:
fil_md = None
if simple_oth_delta:
oth_md = None
# Make a dict of removed packages key is location_href,
# value is location_base
for record in self.pluginbundle.get_list("removedpackage", []):
location_href = record.get("location_href")
if not location_href:
continue
location_base = record.get("location_base")
removed_packages[location_href] = location_base
# Prepare output xml files and check if dbs should be generated
# Note: This information are stored directly to the Metadata
# object which someone could see as little hacky.
def prepare_paths_in_metadata(md, xmlclass, dbclass):
if md is None:
return
notes = self._metadata_notes_from_plugin_bundle(md.metadata_type)
if not notes:
# TODO: Add flag to ignore this kind of warnings (?)
self._warning("Metadata \"{0}\" doesn't have a record in "
"deltametadata.xml - Ignoring")
return
suffix = cr.compression_suffix(md.compression_type) or ""
md.new_fn = os.path.join(
md.out_dir, "{0}.xml{1}".format(md.metadata_type, suffix))
md.new_f_stat = cr.ContentStat(md.checksum_type)
md.new_f = xmlclass(md.new_fn, md.compression_type, md.new_f_stat)
if self.globalbundle.force_database or notes.get(
"database") == "1":
md.db_fn = os.path.join(md.out_dir,
"{0}.sqlite".format(md.metadata_type))
md.db = dbclass(md.db_fn)
else:
md.db_fn = None
md.db = None
# Primary
prepare_paths_in_metadata(pri_md, cr.PrimaryXmlFile, cr.PrimarySqlite)
# Filelists
prepare_paths_in_metadata(fil_md, cr.FilelistsXmlFile,
cr.FilelistsSqlite)
# Other
prepare_paths_in_metadata(oth_md, cr.OtherXmlFile, cr.OtherSqlite)
# Apply delta
all_packages = {} # dict { 'pkgId': pkg }
old_contenthash_strings = []
new_contenthash_strings = []
def old_pkgcb(pkg):
old_contenthash_strings.append(self._pkg_id_str(pkg))
if pkg.location_href in removed_packages:
if removed_packages[pkg.location_href] == pkg.location_base:
# This package won't be in new metadata
return
new_contenthash_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
def delta_pkgcb(pkg):
new_contenthash_strings.append(self._pkg_id_str(pkg))
all_packages[pkg.pkgId] = pkg
filelists_from_primary = True
if fil_md:
filelists_from_primary = False
# Parse both old and delta primary.xml files
cr.xml_parse_primary(pri_md.old_fn,
pkgcb=old_pkgcb,
do_files=filelists_from_primary)
cr.xml_parse_primary(pri_md.delta_fn,
pkgcb=delta_pkgcb,
do_files=filelists_from_primary)
# Calculate content hashes
h = hashlib.new(self.globalbundle.contenthash_type_str)
old_contenthash_strings.sort()
for i in old_contenthash_strings:
h.update(i)
self.globalbundle.calculated_old_contenthash = h.hexdigest()
h = hashlib.new(self.globalbundle.contenthash_type_str)
new_contenthash_strings.sort()
for i in new_contenthash_strings:
h.update(i)
self.globalbundle.calculated_new_contenthash = h.hexdigest()
# Sort packages
def cmp_pkgs(x, y):
# Compare only by filename
ret = cmp(os.path.basename(x.location_href),
os.path.basename(y.location_href))
if ret != 0:
return ret
# Compare by full location_href path
return cmp(x.location_href, y.location_href)
all_packages_sorted = sorted(all_packages.values(), cmp=cmp_pkgs)
def newpkgcb(pkgId, name, arch):
return all_packages.get(pkgId, None)
# Parse filelists
if fil_md:
self._debug("Parsing filelists xmls")
cr.xml_parse_filelists(fil_md.old_fn, newpkgcb=newpkgcb)
cr.xml_parse_filelists(fil_md.delta_fn, newpkgcb=newpkgcb)
if oth_md:
self._debug("Parsing other xmls")
cr.xml_parse_other(oth_md.old_fn, newpkgcb=newpkgcb)
cr.xml_parse_other(oth_md.delta_fn, newpkgcb=newpkgcb)
num_of_packages = len(all_packages_sorted)
# Write out primary
self._debug("Writing primary xml: {0}".format(pri_md.new_fn))
pri_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
pri_md.new_f.add_pkg(pkg)
if pri_md.db:
pri_md.db.add_pkg(pkg)
# Write out filelists
if fil_md:
self._debug("Writing filelists xml: {0}".format(fil_md.new_fn))
fil_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
fil_md.new_f.add_pkg(pkg)
if fil_md.db:
fil_md.db.add_pkg(pkg)
# Write out other
if oth_md:
self._debug("Writing other xml: {0}".format(oth_md.new_fn))
oth_md.new_f.set_num_of_pkgs(num_of_packages)
for pkg in all_packages_sorted:
oth_md.new_f.add_pkg(pkg)
if oth_md.db:
oth_md.db.add_pkg(pkg)
# Finish metadata
def finish_metadata(md):
if md is None:
return
# Close XML file
md.new_f.close()
# Prepare repomd record of xml file
rec = cr.RepomdRecord(md.metadata_type, md.new_fn)
rec.load_contentstat(md.new_f_stat)
rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
rec.rename_file()
md.new_rec = rec
md.new_fn_exists = True
gen_repomd_recs.append(rec)
# Prepare database
if hasattr(md, "db") and md.db:
self._debug("Generating database: {0}".format(md.db_fn))
md.db.dbinfo_update(rec.checksum)
md.db.close()
db_stat = cr.ContentStat(md.checksum_type)
db_compressed = md.db_fn + ".bz2"
cr.compress_file(md.db_fn, None, cr.BZ2, db_stat)
os.remove(md.db_fn)
# Prepare repomd record of database file
db_rec = cr.RepomdRecord("{0}_db".format(md.metadata_type),
db_compressed)
db_rec.load_contentstat(db_stat)
db_rec.fill(md.checksum_type)
if self.globalbundle.unique_md_filenames:
db_rec.rename_file()
gen_repomd_recs.append(db_rec)
# Add records to the bundle
finish_metadata(pri_md)
finish_metadata(fil_md)
finish_metadata(oth_md)
return gen_repomd_recs
def oneshot_callback():
"""Parse one file at a time into a set of packages.
Use of this method is discouraged.
newpkgcb
--------
Via newpkgcb (Package callback) you could directly
affect if the current package element should be parsed
or not. This decision could be based on
three values that are available as attributtes
in the <package> element. This values are:
- pkgId (package checksum)
- name (package name)
- arch (package architecture)
(Note: This is applicable only for filelists.xml and other.xml,
primary.xml doesn't contain this information in <package> element)
If newpkgcb returns a package object, the parsed data
will be loaded to this package object. If it returns a None,
package element is skiped.
This could help you to reduce a memory requirements because
non wanted packages could be skiped without need to
store them into the memory.
If no newpkgcb is specified, default callback returning
a new package object is used.
pkgcb
-----
Callback called when a <package> element parsing is done.
Its argument is a package object that has been previously
returned by the newpkgcb.
This function should return True if parsing should continue
or False if parsing should be interrupted.
Note: Both callbacks are optional, BUT at least one
MUST be used (newpkgcb or pkgcb)!
warningcb
---------
Warning callbacks is called when a non-fatal oddity of prased XML
is detected.
If True is returned, parsing continues. If return value is False,
parsing is terminated.
This callback is optional.
"""
primary_xml_path = None
filelists_xml_path = None
other_xml_path = None
#
# repomd.xml parsing
#
# Parse repomd.xml to get paths (1. Method - Repomd object based)
# Pros: Easy to use
repomd = cr.Repomd(os.path.join(REPO_PATH, "repodata/repomd.xml"))
# Parse repomd.xml (2. Method - Parser based)
# Pros: Warning callback could be specified
def warningcb(warning_type, message):
"""Optional callback for warnings about
wierd stuff and formatting in XML.
:param warning_type: Integer value. One from
the XML_WARNING_* constants.
:param message: String message.
"""
print("PARSER WARNING: %s" % message)
return True
repomd2 = cr.Repomd()
cr.xml_parse_repomd(os.path.join(REPO_PATH, "repodata/repomd.xml"),
repomd2, warningcb)
# Get stuff we need
# (repomd or repomd2 could be used, both have the same values)
for record in repomd.records:
if record.type == "primary":
primary_xml_path = record.location_href
elif record.type == "filelists":
filelists_xml_path = record.location_href
elif record.type == "other":
other_xml_path = record.location_href
#
# Main XML metadata parsing (primary, filelists, other)
#
packages = {}
def pkgcb(pkg):
# Called when whole package entry in xml is parsed
packages[pkg.pkgId] = pkg
def newpkgcb(pkgId, name, arch):
# Called when new package entry is encountered
# And only opening <package> element is parsed
# This function has to return a package to which
# parsed data will be added or None if this package
# should be skiped.
return packages.get(pkgId, None)
# Option do_files tells primary parser to skip <file> element of package.
# If you plan to parse filelists.xml after the primary.xml, always
# set do_files to False.
cr.xml_parse_primary(os.path.join(REPO_PATH, primary_xml_path),
pkgcb=pkgcb,
do_files=False,
warningcb=warningcb)
cr.xml_parse_filelists(os.path.join(REPO_PATH, filelists_xml_path),
newpkgcb=newpkgcb,
warningcb=warningcb)
cr.xml_parse_other(os.path.join(REPO_PATH, other_xml_path),
newpkgcb=newpkgcb,
warningcb=warningcb)
for pkg in packages.values():
print_package_info(pkg)
def parse_repodata(primary_xml_path,
filelists_xml_path,
other_xml_path,
only_primary=False,
mirror=False):
"""
Parse repodata to extract package info.
Args:
primary_xml_path (str): a path to a downloaded primary.xml
filelists_xml_path (str): a path to a downloaded filelists.xml
other_xml_path (str): a path to a downloaded other.xml
Kwargs:
only_primary (bool): If true, only the metadata in primary.xml will be parsed.
Returns:
dict: createrepo_c package objects with the pkgId as a key
"""
packages = collections.OrderedDict()
nevras = set()
pkgid_warning_triggered = False
nevra_warning_triggered = False
def pkgcb(pkg):
"""
A callback which is used when a whole package entry in xml is parsed.
Args:
pkg(preaterepo_c.Package): a parsed metadata for a package
"""
nonlocal pkgid_warning_triggered
nonlocal nevra_warning_triggered
ERR_MSG = _(
"The repository metadata being synced into Pulp is erroneous in a way that "
"makes it ambiguous (duplicate {}), and therefore we do not allow it to be synced in "
"'mirror_complete' mode. Please choose a sync policy which does not mirror "
"repository metadata.\n\n"
"Please read https://github.com/pulp/pulp_rpm/issues/2402 for more details."
)
WARN_MSG = _(
"The repository metadata being synced into Pulp is erroneous in a way that "
"makes it ambiguous (duplicate {}). Yum, DNF and Pulp try to handle these problems, "
"but unexpected things may happen.\n\n"
"Please read https://github.com/pulp/pulp_rpm/issues/2402 for more details."
)
if not pkgid_warning_triggered and pkg.pkgId in packages:
pkgid_warning_triggered = True
if mirror:
raise Exception(ERR_MSG.format("PKGIDs"))
else:
log.warn(WARN_MSG.format("PKGIDs"))
if not nevra_warning_triggered and pkg.nevra() in nevras:
nevra_warning_triggered = True
if mirror:
raise Exception(ERR_MSG.format("NEVRAs"))
else:
log.warn(WARN_MSG.format("NEVRAs"))
packages[pkg.pkgId] = pkg
nevras.add(pkg.nevra())
def newpkgcb(pkgId, name, arch):
"""
A callback which is used when a new package entry is encountered.
Only opening <package> element is parsed at that moment.
This function has to return a package which parsed data will be added to
or None if a package should be skipped.
pkgId, name and arch of a package can be used to skip further parsing. Available
only for filelists.xml and other.xml.
Args:
pkgId(str): pkgId of a package
name(str): name of a package
arch(str): arch of a package
Returns:
createrepo_c.Package: a package which parsed data should be added to.
If None is returned, further parsing of a package will be skipped.
"""
return packages.get(pkgId, None)
cr.xml_parse_primary(primary_xml_path,
pkgcb=pkgcb,
warningcb=warningcb,
do_files=False)
if not only_primary:
cr.xml_parse_filelists(filelists_xml_path,
newpkgcb=newpkgcb,
warningcb=warningcb)
cr.xml_parse_other(other_xml_path,
newpkgcb=newpkgcb,
warningcb=warningcb)
return packages