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# fedpkg - a Python library for Fedora Packagers # # Copyright (C) 2009 Red Hat Inc. # Author(s): Jesse Keating <jkeating@redhat.com> # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2 of the License, or (at your # option) any later version. See http://www.gnu.org/copyleft/gpl.html for # the full text of the license. import os import sys import shutil import re import pycurl try: from kitchen.pycompat27 import subprocess except ImportError: import subprocess import hashlib import koji import rpm import logging import git import ConfigParser import stat import StringIO import OpenSSL import fnmatch # Define some global variables, put them here to make it easy to change LOOKASIDE = 'http://pkgs.fedoraproject.org/repo/pkgs' LOOKASIDEHASH = 'md5' LOOKASIDE_CGI = 'https://pkgs.fedoraproject.org/repo/pkgs/upload.cgi' GITBASEURL = 'ssh://%(user)s@pkgs.fedoraproject.org/%(module)s' ANONGITURL = 'git://pkgs.fedoraproject.org/%(module)s' UPLOADEXTS = ['tar', 'gz', 'bz2', 'lzma', 'xz', 'Z', 'zip', 'tff', 'bin', 'tbz', 'tbz2', 'tlz', 'txz', 'pdf', 'rpm', 'jar', 'war', 'db', 'cpio', 'jisp', 'egg', 'gem'] BRANCHFILTER = 'f\d\d\/master|master|el\d\/master|olpc\d\/master' # Define our own error class class FedpkgError(Exception): pass # Setup our logger # Null logger to avoid spurrious messages, add a handler in app code class NullHandler(logging.Handler): def emit(self, record): pass h = NullHandler() # This is our log object, clients of this library can use this object to # define their own logging needs log = logging.getLogger("fedpkg") # Add the null handler log.addHandler(h) def _find_branch(path=None, repo=None): """Returns the active branch name""" if not path: path = os.getcwd() # Create the repo from path if no repo passed if not repo: try: repo = git.Repo(path) except git.errors.InvalidGitRepositoryError: raise FedpkgError('%s is not a valid repo' % path) return(repo.active_branch.name) # Define some helper functions, they start with _ def _hash_file(file, hashtype): """Return the hash of a file given a hash type""" try: sum = hashlib.new(hashtype) except ValueError: raise FedpkgError('Invalid hash type: %s' % hashtype) input = open(file, 'rb') # Loop through the file reading chunks at a time as to not # put the entire file in memory. That would suck for DVDs while True: chunk = input.read(8192) # magic number! Taking suggestions if not chunk: break # we're done with the file sum.update(chunk) input.close() return sum.hexdigest() def _run_command(cmd, shell=False, env=None, pipe=[], cwd=None): """Run the given command. Will determine if caller is on a real tty and if so stream to the tty Or else will run and log output. cmd is a list of the command and arguments shell is whether to run in a shell or not, defaults to False env is a dict of environment variables to use (if any) pipe is a command to pipe the output of cmd into cwd is the optional directory to run the command from Raises on error, or returns nothing. """ # Process any environment vairables. environ = os.environ if env: for item in env.keys(): log.debug('Adding %s:%s to the environment' % (item, env[item])) environ[item] = env[item] # Check if we're supposed to be on a shell. If so, the command must # be a string, and not a list. command = cmd pipecmd = pipe if shell: command = ' '.join(cmd) pipecmd = ' '.join(pipe) # Check to see if we're on a real tty, if so, stream it baby! if sys.stdout.isatty(): if pipe: log.debug('Running %s | %s directly on the tty' % (subprocess.list2cmdline(cmd), subprocess.list2cmdline(pipe))) else: log.debug('Running %s directly on the tty' % subprocess.list2cmdline(cmd)) try: if pipe: # We're piping the stderr over too, which is probably a # bad thing, but rpmbuild likes to put useful data on # stderr, so.... proc = subprocess.Popen(command, env=environ, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=shell, cwd=cwd) subprocess.check_call(pipecmd, env=environ, stdout=sys.stdout, stderr=sys.stderr, stdin=proc.stdout, shell=shell, cwd=cwd) else: subprocess.check_call(command, env=environ, stdout=sys.stdout, stderr=sys.stderr, shell=shell, cwd=cwd) except (subprocess.CalledProcessError, OSError), e: raise FedpkgError(e) except KeyboardInterrupt: raise FedpkgError() else: # Ok, we're not on a live tty, so pipe and log. if pipe: log.debug('Running %s | %s and logging output' % (subprocess.list2cmdline(cmd), subprocess.list2cmdline(pipe))) else: log.debug('Running %s and logging output' % subprocess.list2cmdline(cmd)) try: if pipe: proc1 = subprocess.Popen(command, env=environ, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, shell=shell, cwd=cwd) proc = subprocess.Popen(pipecmd, env=environ, stdin=proc1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=shell, cwd=cwd) output, error = proc.communicate() else: proc = subprocess.Popen(command, env=environ, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=shell, cwd=cwd) output, error = proc.communicate() except OSError, e: raise FedpkgError(e) log.info(output) if proc.returncode: raise FedpkgError('Command %s returned code %s with error: %s' % (subprocess.list2cmdline(cmd), proc.returncode, error)) return def _verify_file(file, hash, hashtype): """Given a file, a hash of that file, and a hashtype, verify. Returns True if the file verifies, False otherwise """ # get the hash sum = _hash_file(file, hashtype) # now do the comparison if sum == hash: return True return False def _get_build_arches_from_srpm(srpm, arches): """Given the path to an srpm, determine the possible build arches Use supplied arches as a filter, only return compatible arches """ archlist = arches hdr = koji.get_rpm_header(srpm) if hdr[rpm.RPMTAG_SOURCEPACKAGE] != 1: raise FedpkgError('%s is not a source package.' % srpm) buildarchs = hdr[rpm.RPMTAG_BUILDARCHS] exclusivearch = hdr[rpm.RPMTAG_EXCLUSIVEARCH] excludearch = hdr[rpm.RPMTAG_EXCLUDEARCH] # Reduce by buildarchs if buildarchs: archlist = [a for a in archlist if a in buildarchs] # Reduce by exclusive arches if exclusivearch: archlist = [a for a in archlist if a in exclusivearch] # Reduce by exclude arch if excludearch: archlist = [a for a in archlist if a not in excludearch] # do the noarch thing if 'noarch' not in excludearch and ('noarch' in buildarchs or \ 'noarch' in exclusivearch): archlist.append('noarch') # See if we have anything compatible. Should we raise here? if not archlist: raise FedpkgError('No compatible build arches found in %s' % srpm) return archlist def _list_branches(path=None, repo=None): """Returns a tuple of local and remote branch names""" if not path: path = os.getcwd() # Create the repo from path if no repo passed if not repo: try: repo = git.Repo(path) except git.errors.InvalidGitRepositoryError: raise FedpkgError('%s is not a valid repo' % path) log.debug('Listing refs') refs = repo.refs # Sort into local and remote branches remotes = [] locals = [] for ref in refs: if type(ref) == git.Head: log.debug('Found local branch %s' % ref.name) locals.append(ref.name) elif type(ref) == git.RemoteReference: if ref.name == 'origin/HEAD': log.debug('Skipping remote branch alias origin/HEAD') continue # Not useful in this context log.debug('Found remote branch %s' % ref.name) remotes.append(ref.name) return (locals, remotes) def _srpmdetails(srpm): """Return a tuple of package name, package files, and upload files.""" # get the name cmd = ['rpm', '-qp', '--qf', '%{NAME}', srpm] # Run the command log.debug('Running: %s' % subprocess.list2cmdline(cmd)) try: proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) output, error = proc.communicate() except OSError, e: raise FedpkgError(e) name = output if error: raise FedpkgError('Error querying srpm: %s' % error) # now get the files and upload files files = [] uploadfiles = [] cmd = ['rpm', '-qpl', srpm] log.debug('Running: %s' % subprocess.list2cmdline(cmd)) try: proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) output, error = proc.communicate() except OSError, e: raise FedpkgError(e) if error: raise FedpkgError('Error querying srpm:' % error) contents = output.split() # Cycle through the stuff and sort correctly by its extension for file in contents: if file.rsplit('.')[-1] in UPLOADEXTS: uploadfiles.append(file) else: files.append(file) return((name, files, uploadfiles)) def add_tag(tagname, force=False, message=None, file=None): """Add a git tag to the repository""" cmd = ['git', 'tag'] cmd.extend(['-a']) # force tag creation, if tag already exists if force: cmd.extend(['-f']) # Description for the tag if message: cmd.extend(['-m', message]) elif file: cmd.extend(['-F', os.path.abspath(file)]) cmd.append(tagname) # make it so _run_command(cmd) log.info ('Tag \'%s\' was created' % tagname) def clean(dry=False, useignore=True): """Clean a module checkout of untracked files. Can optionally perform a dry-run Can optionally not use the ignore rules Logs output and returns nothing """ # setup the command, this could probably be done with some python api... cmd = ['git', 'clean', '-f', '-d'] if dry: cmd.append('--dry-run') if not useignore: cmd.append('-x') # Run it! _run_command(cmd) return def clone(module, user, path=None, branch=None, bare_dir=None): """Clone a repo, optionally check out a specific branch. module is the name of the module to clone path is the basedir to perform the clone in branch is the name of a branch to checkout instead of origin/master bare_dir is the name of a directory to make a bare clone too if this is a bare clone. None otherwise. Logs the output and returns nothing. """ if not path: path = os.getcwd() # construct the git url if user: giturl = GITBASEURL % {'user': user, 'module': module} else: giturl = ANONGITURL % {'module': module} # do some branch name conversions if branch: remotere = 'f\d\d|el\d|olpc\d' if re.match(remotere, branch): branch = '%s/master' % branch # Create the command cmd = ['git', 'clone'] # do the clone if branch and bare_dir: log.debug('Cloning %s bare with branch %s' % (giturl, branch)) cmd.extend(['--branch', branch, '--bare', giturl, bare_dir]) elif branch: log.debug('Cloning %s with branch %s' % (giturl, branch)) cmd.extend(['--branch', branch, giturl]) elif bare_dir: log.debug('Cloning %s bare' % giturl) cmd.extend(['--bare', giturl, bare_dir]) else: log.debug('Cloning %s' % giturl) cmd.extend([giturl]) _run_command(cmd) # Set push.default to "tracking" if not bare_dir: repo = git.Repo(os.path.join(path, module)) repo.git.config('--add', 'push.default', 'tracking') return def clone_with_dirs(module, user, path=None): """Clone a repo old style with subdirs for each branch. module is the name of the module to clone gitargs is an option list of arguments to git clone """ if not path: path = os.getcwd() # Get the full path of, and git object for, our directory of branches top_path = os.path.join(path, module) top_git = git.Git(top_path) repo_path = os.path.join(top_path, 'fedpkg.git') # Create our new top directory try: os.mkdir(top_path) except (OSError), e: raise FedpkgError('Could not create directory for module %s: %s' % (module, e)) # Create a bare clone first. This gives us a good list of branches clone(module, user, top_path, bare_dir=repo_path) # Get the full path to, and a git object for, our new bare repo repo_git = git.Git(repo_path) # Get a branch listing branches = [x for x in repo_git.branch().split() if x != "*" and re.match(BRANCHFILTER, x)] for branch in branches: try: # Make a local clone for our branch top_git.clone("--branch", branch, repo_path, branch.split('/master')[0]) # Set the origin correctly branch_path = os.path.join(top_path, branch.split('/master')[0]) branch_git = git.Git(branch_path) branch_git.config("--replace-all", "remote.origin.url", GITBASEURL % {'user': user, 'module': module}) branch_git.config('--add', 'push.default', 'tracking') except (git.GitCommandError, OSError), e: raise FedpkgError('Could not locally clone %s from %s: %s' % (branch, repo_path, e)) # We don't need this now. Ignore errors since keeping it does no harm shutil.rmtree(repo_path, ignore_errors=True) # consistent with clone method since the commands should return 0 when # successful. return 0 def commit(path=None, message=None, file=None, files=[]): """Commit changes to a module (optionally found at path) Can take a message to use as the commit message a file to find the commit message within and a list of files to commit. Requires the caller be a real tty or a message passed. Logs the output and returns nothing. """ # First lets see if we got a message or we're on a real tty: if not sys.stdin.isatty(): if not message or not file: raise FedpkgError('Must have a commit message or be on a real tty.') # construct the git command # We do this via subprocess because the git module is terrible. cmd = ['git', 'commit'] if message: cmd.extend(['-m', message]) elif file: # If we get a relative file name, prepend our path to it. if path and not file.startswith('/'): cmd.extend(['-F', os.path.abspath(os.path.join(path, file))]) else: cmd.extend(['-F', os.path.abspath(file)]) if not files: cmd.append('-a') else: cmd.extend(files) # make it so _run_command(cmd, cwd=path) return def delete_tag(tagname=None): """Delete a git tag from the repository """ if not tagname: raise fedpkgError('Please specified a tagname') cmd = ['git', 'tag'] cmd.extend(['-d']) cmd.extend(tagname) _run_command(cmd) log.info ('Tag %s was deleted' % ', '.join(delete)) def get_latest_commit(module): """Discover the latest commit has for a given module and return it""" # This is stupid that I have to use subprocess :/ url = ANONGITURL % {'module': module} # This cmd below only works to scratch build rawhide # We need something better for epel cmd = ['git', 'ls-remote', url, 'refs/heads/master'] try : proc = subprocess.Popen(cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE) output, error = proc.communicate() except OSError, e: raise FedpkgError(e) if error: raise FedpkgError('Got an error finding head for %s: %s' % (module, error)) # Return the hash sum return output.split()[0] def import_srpm(srpm, path=None): """Import the contents of an srpm into a repo. srpm: File to import contents from path: optional path to work in, defaults to cwd. This function will add/remove content to match the srpm, upload new files to the lookaside, and stage the changes. Returns a list of files to upload. """ if not path: path = os.getcwd() # see if the srpm even exists srpm = os.path.abspath(srpm) if not os.path.exists(srpm): raise FedpkgError('File not found.') # bail if we're dirty try: repo = git.Repo(path) except git.errors.InvalidGitRepositoryError: raise FedpkgError('%s is not a valid repo' % path) if repo.is_dirty(): raise FedpkgError('There are uncommitted changes in your repo') # Get the details of the srpm name, files, uploadfiles = _srpmdetails(srpm) # Need a way to make sure the srpm name matches the repo some how. # Get a list of files we're currently tracking ourfiles = repo.git.ls_files().split() # Trim out sources and .gitignore try: ourfiles.remove('.gitignore') ourfiles.remove('sources') except ValueError: pass try: ourfiles.remove('sources') except ValueError: pass # Things work better if we're in our module directory oldpath = os.getcwd() os.chdir(path) # Look through our files and if it isn't in the new files, remove it. for file in ourfiles: if file not in files: log.info("Removing no longer used file: %s" % file) rv = repo.index.remove([file]) os.remove(file) # Extract new files cmd = ['rpm2cpio', srpm] # We have to force cpio to copy out (u) because git messes with # timestamps cmd2 = ['cpio', '-iud', '--quiet'] rpmcall = subprocess.Popen(cmd, stdout=subprocess.PIPE) cpiocall = subprocess.Popen(cmd2, stdin=rpmcall.stdout) output, err = cpiocall.communicate() if output: log.debug(output) if err: os.chdir(oldpath) raise FedpkgError("Got an error from rpm2cpio: %s" % err) # And finally add all the files we know about (and our stock files) for file in ('.gitignore', 'sources'): if not os.path.exists(file): # Create the file open(file, 'w').close() files.append(file) rv = repo.index.add(files) # Return to the caller and let them take it from there. os.chdir(oldpath) return(uploadfiles) def list_tag(tagname=None): """Create a list of all tags in the repository which mathe a given pattern. if list == '*' all tags will been shown. """ cmd = ['git', 'tag'] cmd.extend(['-l']) if not tagname == '*': cmd.extend([tagname]) # make it so _run_command(cmd) def new(path=None): """Return changes in a repo since the last tag""" if not path: path = os.getcwd() # setup the repo object based on our path try: repo = git.Repo(path) except git.errors.InvalidGitRepositoryError: raise FedpkgError('%s is not a valid repo' % path) # Find the latest tag tag = repo.git.describe('--tags', '--abbrev=0') # Now get the diff log.debug('Diffing from tag %s' % tag) return repo.git.diff('-M', tag) def pull(): """Pull changes from the main repository""" cmd = ['git', 'pull'] _run_command(cmd) return def push(): """Push changes to the main repository""" cmd = ['git', 'push'] _run_command(cmd) return def sources(path, outdir=None): """Download source files""" # Get the module name spec = None # Get a list of files in the path we're looking at files = os.listdir(path) # Search the files for the first one that ends with ".spec" for f in files: if f.endswith('.spec'): spec = f break if not spec: raise FedpkgError('%s is not a valid repo' % path) module = spec.split('.spec')[0] archives = open(os.path.join(path, 'sources'), 'r').readlines() # Default to putting the files where the module is if not outdir: outdir = path for archive in archives: try: csum, file = archive.split() except ValueError: raise FedpkgError('Malformed sources file.') # See if we already have a valid copy downloaded outfile = os.path.join(outdir, file) if os.path.exists(outfile): if _verify_file(outfile, csum, LOOKASIDEHASH): continue url = '%s/%s/%s/%s/%s' % (LOOKASIDE, module, file, csum, file) # There is some code here for using pycurl, but for now, # just use subprocess #output = open(file, 'wb') #curl = pycurl.Curl() #curl.setopt(pycurl.URL, url) #curl.setopt(pycurl.FOLLOWLOCATION, 1) #curl.setopt(pycurl.MAXREDIRS, 5) #curl.setopt(pycurl.CONNECTTIMEOUT, 30) #curl.setopt(pycurl.TIMEOUT, 300) #curl.setopt(pycurl.WRITEDATA, output) #try: # curl.perform() #except: # print "Problems downloading %s" % url # curl.close() # output.close() # return 1 #curl.close() #output.close() # These options came from Makefile.common. # Probably need to support wget too command = ['curl', '-H', 'Pragma:', '-O', '-R', '-S', '--fail', '--show-error', url] _run_command(command) if not _verify_file(outfile, csum, LOOKASIDEHASH): raise FedpkgError('%s failed checksum' % file) return def switch_branch(branch, path=None): """Switch the working branch Will create a local branch if one doesn't already exist, based on origin/<branch>/master Logs output and returns nothing. """ if not path: path = os.getcwd() # setup the repo object based on our path try: repo = git.Repo(path) except git.errors.InvalidGitRepositoryError: raise FedpkgError('%s is not a valid repo' % path) # See if the repo is dirty first if repo.is_dirty(): raise FedpkgError('%s has uncommitted changes.' % path) # Get our list of branches (locals, remotes) = _list_branches(repo=repo) if not branch in locals: # We need to create a branch log.debug('No local branch found, creating a new one') if not 'origin/%s/master' % branch in remotes: raise FedpkgError('Unknown remote branch %s' % branch) try: log.info(repo.git.checkout('-b', branch, '--track', 'origin/%s/master' % branch)) except: # this needs to be finer grained I think... raise FedpkgError('Could not create branch %s' % branch) else: try: output = repo.git.checkout(branch) # The above shoudl have no output, but stash it anyway log.info("Switched to branch '%s'" % branch) except: # This needs to be finer grained I think... raise FedpkgError('Could not check out %s' % branch) return class Lookaside(object): """ Object for interacting with the lookaside cache. """ def __init__(self, url=LOOKASIDE_CGI): self.lookaside_cgi = url self.cert_file = os.path.expanduser('~/.fedora.cert') self.ca_cert_file = os.path.expanduser('~/.fedora-server-ca.cert') def _create_curl(self): """ Common curl setup options used for all requests to lookaside. """ curl = pycurl.Curl()


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