#!/usr/bin/python -O import re import os import sys import pacman import getopt import glob import MySQLdb import MySQLdb.connections import ConfigParser ########################################################### # Deal with configuration ########################################################### conffile = '/etc/tupkgs.conf' if not os.path.isfile(conffile): print "Error: cannot access config file ("+conffile+")" usage(argv[0]) sys.exit(1) config = ConfigParser.ConfigParser() config.read(conffile) ############################################################ # Define some classes we need class Version: def __init__(self): self.version = None self.file = None class Package: def __init__(self): self.name = None self.category = None self.old = None self.new = None self.desc = None self.url = None self.depends = None self.sources = None class PackageDatabase: def __init__(self, host, user, password, dbname): self.host = host self.user = user self.password = password self.dbname = dbname self.connection = MySQLdb.connect(host=host, user=user, passwd=password, db=dbname) def cursor(self): return self.connection.cursor() def lookup(self, packagename): warning("DB: Looking up package: " + packagename) q = self.cursor() q.execute("SELECT ID FROM Packages WHERE Name = '" + MySQLdb.escape_string(packagename) + "'") if (q.rowcount != 0): row = q.fetchone() return row[0] return None def getCategoryID(self, package): category_id = self.lookupCategory(package.category) if (category_id == None): category_id = 1 warning("DB: Got category ID '" + str(category_id) + "' for package '" + package.name + "'") return category_id def insert(self, package, locationId): warning("DB: Inserting package: " + package.name) global repo_dir q = self.cursor() q.execute("INSERT INTO Packages " + "(Name, CategoryID, Version, FSPath, LocationID, SubmittedTS, Description, URL) VALUES ('" + MySQLdb.escape_string(package.name) + "', " + str(self.getCategoryID(package)) + ", '" + MySQLdb.escape_string(package.new.version) + "', '" + MySQLdb.escape_string( os.path.join(repo_dir, os.path.basename(package.new.file))) + "', " + str(locationId) + ", " + "UNIX_TIMESTAMP(), '" + MySQLdb.escape_string(str(package.desc)) + "', '" + MySQLdb.escape_string(str(package.url)) + "')") id = self.lookup(package.name) self.insertNewInfo(package, id, locationId) def update(self, id, package, locationId): warning("DB: Updating package: " + package.name + " with id " + str(id)) global repo_dir q = self.cursor() if (self.isdummy(package.name)): q.execute("UPDATE Packages SET " + "Version = '" + MySQLdb.escape_string(package.new.version) + "', " + "CategoryID = " + str(self.getCategoryID(package)) + ", " + "FSPath = '" + MySQLdb.escape_string( os.path.join(repo_dir, os.path.basename(package.new.file))) + "', " + "Description = '" + MySQLdb.escape_string(str(package.desc)) + "', " + "DummyPkg = 0, " + "SubmittedTS = UNIX_TIMESTAMP(), " + "URL = '" + MySQLdb.escape_string(str(package.url)) + "' " + "WHERE ID = " + str(id)) else: q.execute("UPDATE Packages SET " + "Version = '" + MySQLdb.escape_string(package.new.version) + "', " + "CategoryID = " + str(self.getCategoryID(package)) + ", " + "FSPath = '" + MySQLdb.escape_string( os.path.join(repo_dir, os.path.basename(package.new.file))) + "', " + "Description = '" + MySQLdb.escape_string(str(package.desc)) + "', " + "ModifiedTS = UNIX_TIMESTAMP(), " + "URL = '" + MySQLdb.escape_string(str(package.url)) + "' " + "WHERE ID = " + str(id)) self.insertNewInfo(package, id, locationId) # we must lastly check to see if this is a move of a package from # unsupported to community, because we'd have to reset maintainer and location q = self.cursor() q.execute("SELECT LocationID FROM Packages WHERE ID = " + str(id)) if (q.rowcount != 0): row = q.fetchone() if (row[0] != 3): q = self.cursor() q.execute("UPDATE Packages SET LocationID = 3, MaintainerUID = null WHERE ID = " + str(id)) def remove(self, id, locationId): warning("DB: Removing package with id: " + str(id)) q = self.cursor() q.execute("DELETE FROM Packages WHERE " + "LocationID = " + str(locationId) + " AND ID = " + str(id)) def clearOldInfo(self, id): warning("DB: Clearing old info for package with id : " + str(id)) q = self.cursor() q.execute("DELETE FROM PackageContents WHERE PackageID = " + str(id)) q.execute("DELETE FROM PackageDepends WHERE PackageID = " + str(id)) q.execute("DELETE FROM PackageSources WHERE PackageID = " + str(id)) def lookupOrDummy(self, packagename): retval = self.lookup(packagename) if (retval != None): return retval return self.createDummy(packagename) def lookupCategory(self, categoryname): warning("DB: Looking up category: " + categoryname) q = self.cursor() q.execute("SELECT ID from PackageCategories WHERE Category = '" + MySQLdb.escape_string(categoryname) + "'") if (q.rowcount != 0): row = q.fetchone() return row[0] return None def createDummy(self, packagename): warning("DB: Creating dummy package for: " + packagename) q = self.cursor() q.execute("INSERT INTO Packages " + "(Name, Description, LocationID, DummyPkg) " + "VALUES ('" + MySQLdb.escape_string(packagename) + "', '" + MySQLdb.escape_string("A dummy package") + "', 1, 1)") return self.lookup(packagename) def insertNewInfo(self, package, id, locationId): q = self.cursor() # first delete the old; this is never bad self.clearOldInfo(id) warning("DB: Inserting new package info for " + package.name + " with id " + str(id)) # PackageSources for source in package.sources: q.execute("INSERT INTO PackageSources (PackageID, Source) " + "VALUES (" + str(id) + ", '" + source + "')") # PackageDepends for dep in package.depends: depid = self.lookupOrDummy(dep) q.execute("INSERT INTO PackageDepends (PackageID, DepPkgID) " + "VALUES (" + str(id) + ", " + str(depid) + ")") def isdummy(self, packagename): warning("DB: Looking up package: " + packagename) q = self.cursor() q.execute("SELECT * FROM Packages WHERE Name = '" + MySQLdb.escape_string(packagename) + "' AND DummyPkg = 1") if (q.rowcount != 0): return True return False ############################################################ # Functions for walking the file trees ############################################################ def filesForRegexp(topdir, regexp): retval = [] def matchfile(regexp, dirpath, namelist): for name in namelist: if (regexp.match(name)): retval.append(os.path.join(dirpath, name)) os.path.walk(topdir, matchfile, regexp) return retval def packagesInTree(topdir): return filesForRegexp(topdir, re.compile("^.*\.pkg\.tar\.gz$")) def pkgbuildsInTree(topdir): return filesForRegexp(topdir, re.compile("^PKGBUILD$")) ############################################################ # Function for testing if two files are identical ############################################################ def areFilesIdentical(file_a, file_b): command = "cmp '" + file_a + "' '" + file_b + "' >/dev/null" retval = os.system(command) if (retval == 0): return True return False ############################################################ # Function for fetching info from PKGBUILDs and packages ############################################################ def infoFromPackageFile(filename): pkg = pacman.load(filename) return pkg.name, pkg.version + "-" + pkg.release def infoFromPkgbuildFile(filename): # first grab the category based on the file path pkgdirectory = os.path.dirname(filename) catdirectory = os.path.dirname(pkgdirectory) m = re.match(r".*/([^/]+)$", catdirectory) if (m): category = m.group(1) else: category = "none" # open and source the file pf_stdin, pf_stdout = os.popen2("/bin/bash", 't', 0) print >>pf_stdin, ". " + filename #print "PKGBUILD: " + filename # get pkgname print >>pf_stdin, 'echo $pkgname' pkgname = pf_stdout.readline().strip() #print "PKGBUILD: pkgname: " + pkgname # get pkgver print >>pf_stdin, 'echo $pkgver' pkgver = pf_stdout.readline().strip() #print "PKGBUILD: pkgver: " + pkgver # get pkgrel print >>pf_stdin, 'echo $pkgrel' pkgrel = pf_stdout.readline().strip() #print "PKGBUILD: pkgrel: " + pkgrel # get url print >>pf_stdin, 'echo $url' url = pf_stdout.readline().strip() #print "PKGBUILD: url: " + url # get desc print >>pf_stdin, 'echo $pkgdesc' pkgdesc = pf_stdout.readline().strip() #print "PKGBUILD: pkgdesc: " + pkgdesc # get source array print >>pf_stdin, 'echo ${source[*]}' source = (pf_stdout.readline().strip()).split(" ") # get depends array print >>pf_stdin, 'echo ${depends[*]}' depends = (pf_stdout.readline().strip()).split(" ") # clean up pf_stdin.close() pf_stdout.close() return pkgname, pkgver + "-" + pkgrel, pkgdesc, url, depends, source, category def infoFromPkgbuildFileWorse(filename): # load the file with pacman library pkg = pacman.load(filename) return (pkg.name, pkg.version + "-" + pkg.release, pkg.desc, pkg.url, pkg.depends, pkg.source) ############################################################ # Functions for doing the final steps of execution ############################################################ def execute(command): global switches print(command) if not (switches.get("-n") == True): return os.system(command) return 0 def copyFileToRepo(filename, repodir): destfile = os.path.join(repodir, os.path.basename(filename)) command = "cp --preserve=timestamps '" + filename + "' '" + destfile + "'" return execute(command) def deleteFile(filename): command = "rm '" + filename + "'" return execute(command) def runGensync(repo, pkgbuild): #target = os.path.join(repo, os.path.basename(repo) + ".db.tar.gz") target = os.path.join(repo, "community.db.tar.gz") command = "gensync '" + pkgbuild + "' '" + target + "'" return execute(command) def runUpdatesyncUpd(repo, pkgbuild): targetDB = os.path.join(repo, "community.db.tar.gz") command = "updatesync upd '" + targetDB + "' '" + pkgbuild + "' '" + repo +"'" return execute(command) def runUpdatesyncDel(repo, pkgname): targetDB = os.path.join(repo, "community.db.tar.gz") command = "updatesync del '" + targetDB + "' '" + pkgname +"'" return execute(command) ############################################################ # Functions for error handling ############################################################ def warning(string): print >>sys.stderr, string had_error = 0 def error(string): global had_error warning(string) had_error = 1 ############################################################ # MAIN ############################################################ # The purpose of this version of tupkgupdate is to avoid # doing as much time and machine-intensive work as the full # tupkgupdate does, by relying on the state of the mysql # database to be correct. Since it usually is, this is a # good means for effecting updates more quickly, and won't # be a processor hog. # # Note that this version CANNOT HANDLE deleted packages. Those # will have to be processed less frequently. The only way to # know a package for sure is missing is to look through all # the PKGBUILDs which is what we're trying to avoid. # # ARGUMENTS # # tupkgupdate [-n] [--delete] [--paranoid] <repo_dir> <pkgbuild_dir> <build_dir> # First call getopt switch_list,args_proper = getopt.getopt(sys.argv[1:], 'n', [ "delete", "paranoid" ]) switches = {} for switch in switch_list: switches[switch[0]] = 1 # Then handle the remaining arguments if (len(args_proper) < 3): print >>sys.stderr, "syntax: tupkgupdate [-n] [--delete] [--paranoid] <repo_dir> <pkgbuild_tree> <build_tree>" sys.exit(-1) repo_dir, pkgbuild_dir, build_dir = args_proper # Open the database so we find out now if we can't! db = PackageDatabase(config.get('mysql', 'host'), config.get('mysql', 'username'), config.get('mysql', 'password'), config.get('mysql', 'db')) # Set up the lists and tables packages = dict() copy = list() delete = list() dbremove = list() dbmodify = list() # PASS 1: PARSING/LOCATING/CHECKING # # Go through each package file in the incoming/build tree c_files = packagesInTree(build_dir) for c_file in c_files: # 1 - fetch package.name and package.new.{version,file} from package file # a) error and skip if invalid package file pkgname, ver = infoFromPackageFile(c_file) if (pkgname == None or ver == None): error("Package file '" + c_file + "' is invalid!") continue # b) error and skip if this is a duplicate we've already seen if (packages.get(pkgname)): error("Pkgbuild '" + a_file + "' is a duplicate!") continue # c) create the package structure package = Package() package.name = pkgname version = Version() version.version = ver version.file = c_file package.new = version # 2 - use the package name to find/parse the PKGBUILD ver, desc, url, depends, sources, category = findPkgbuildAndGetInfo(pkgname) # a) if no PKGBUILD file, ignore the built file (log a warning, and skip) if (ver == None): # no way to log warnings at the moment continue # b) check that PKGBUILD pkgver-pkgrel == package.new.version (or log error and skip) if (ver != package.new.version): error("For package '" + pkgname + "' the PKGBUILD ver '" + ver + "' doesn't match the binary package ver '" + package.new.version + "') continue; # c) populate package.{desc,url,depends,sources,category} package.desc = desc package.url = url package.depends = depends package.sources = sources package.category = category # 3 - fill in package.old.version from the mysql db ([community] only) and perform checking: ver = db.getCommunityVersion(package.name) # a) if no record in mysql db, verify package not in repo (or log error and skip) if (ver == None): evil_packages = glob.glob(os.path.join(repodir, package.name + "-*.pkg.tar.gz")); found_evil_package = 0; for evil_package in evil_packages: pkgname, ver = infoFromPackageFile(evil_package) if (pkgname == package.name): error("No record of package '" + package.name + "' in [community] yet it has a package in '" + evil_package + "'") found_evil_package = 1; continue; if (found_evil_package == 1): continue; # b) if record in mysql db, infer and verify proper package.old.file in repo (or log error and skip) inferred_old_filepath = os.path.join(repodir, package.name + "-" + ver + ".pkg.tar.gz") if (not os.path.exists(inferred_old_filepath)): error("The old package file '" + inferred_old_filepath + "' should exist but doesn't! Aborting.") continue # 4 - If new file exists in repo already, delete it (silently) and skip new_filepath = os.path.join(repodir, os.path.basename(package.new.file)) if (os.path.exists(new_filepath)): delete.append(package.new.file) continue # 5 - If we've gotten here, we are a legitimate update or new package, so: # a) put the package in the package list packages.append(package) # b) add new file to the "copy" list copy.append(package.new.file) # c) add package to "dbmodify" list dbmodify.append(package) # d) if package has an old, add old file to "delete" list if (not package.old == None): delete.append(package.old.file) ## IF WE HAVE HAD ANY ERRORS AT THIS POINT, ABORT! ## if (had_error == 1): error("Aborting due to errors.") sys.exit(-1) # FOR NOW, ALWAYS EXIT, for safety warning("Would have succeeded in the operation.") warning("DBMODIFY: " + ','.join(dbmodify)) warning("COPY: " + ','.join(copy)) warning("DELETE: " + ','.join(delete)) sys.exit(-1) # PASS 3: EXECUTION # # First, do all the database updates for package in dbmodify: warning("DB: Package in dbmodify: " + package.name) id = db.lookup(package.name) if (id == None): db.insert(package, 3) else: db.update(id, package, 3) # Copy for file in copy: retval = copyFileToRepo(file, repo_dir) if (retval != 0): error("Could not copy file to repo: '" + file + "'") sys.exit(-1) # Delete (second, for safety's sake) for file in delete: deleteFile(file) # Now that we've copied new files and deleted, we should delete the source # files, if we're supposed to if (switches.get("--delete") == True): for file in copy: deleteFile(file) # Run updatesync where it is needed for package in dbmodify: retval = runUpdatesyncUpd(repo_dir, os.path.join(pkgbuild_dir,package.category,package.name,"PKGBUILD")) if (retval != 0): error("Updatesync upd returned an error!") sys.exit(-1) # vim: ft=python ts=2 sw=2 noet