| """Package Install Manager for Python. |
| |
| This is currently a MacOSX-only strawman implementation. |
| Motto: "He may be shabby, but he gets you what you need" :-) |
| |
| Tools to allow easy installation of packages. The idea is that there is |
| an online XML database per (platform, python-version) containing packages |
| known to work with that combination. This module contains tools for getting |
| and parsing the database, testing whether packages are installed, computing |
| dependencies and installing packages. |
| |
| There is a minimal main program that works as a command line tool, but the |
| intention is that the end user will use this through a GUI. |
| """ |
| import sys |
| import os |
| import urllib |
| import urlparse |
| import plistlib |
| import distutils.util |
| import distutils.sysconfig |
| import md5 |
| |
| __all__ = ["PimpPreferences", "PimpDatabase", "PimpPackage", "main"] |
| |
| _scriptExc_NotInstalled = "pimp._scriptExc_NotInstalled" |
| _scriptExc_OldInstalled = "pimp._scriptExc_OldInstalled" |
| _scriptExc_BadInstalled = "pimp._scriptExc_BadInstalled" |
| |
| NO_EXECUTE=0 |
| |
| PIMP_VERSION="0.1" |
| |
| # Flavors: |
| # source: setup-based package |
| # binary: tar (or other) archive created with setup.py bdist. |
| DEFAULT_FLAVORORDER=['source', 'binary'] |
| DEFAULT_DOWNLOADDIR='/tmp' |
| DEFAULT_BUILDDIR='/tmp' |
| DEFAULT_INSTALLDIR=distutils.sysconfig.get_python_lib() |
| DEFAULT_PIMPDATABASE="http://www.cwi.nl/~jack/pimp/pimp-%s.plist" % distutils.util.get_platform() |
| |
| ARCHIVE_FORMATS = [ |
| (".tar.Z", "zcat \"%s\" | tar -xf -"), |
| (".taz", "zcat \"%s\" | tar -xf -"), |
| (".tar.gz", "zcat \"%s\" | tar -xf -"), |
| (".tgz", "zcat \"%s\" | tar -xf -"), |
| (".tar.bz", "bzcat \"%s\" | tar -xf -"), |
| (".zip", "unzip \"%s\""), |
| ] |
| |
| class MyURLopener(urllib.FancyURLopener): |
| """Like FancyURLOpener, but we do want to get errors as exceptions.""" |
| def http_error_default(self, url, fp, errcode, errmsg, headers): |
| urllib.URLopener.http_error_default(self, url, fp, errcode, errmsg, headers) |
| |
| class PimpPreferences: |
| """Container for per-user preferences, such as the database to use |
| and where to install packages.""" |
| |
| def __init__(self, |
| flavorOrder=None, |
| downloadDir=None, |
| buildDir=None, |
| installDir=None, |
| pimpDatabase=None): |
| if not flavorOrder: |
| flavorOrder = DEFAULT_FLAVORORDER |
| if not downloadDir: |
| downloadDir = DEFAULT_DOWNLOADDIR |
| if not buildDir: |
| buildDir = DEFAULT_BUILDDIR |
| if not installDir: |
| installDir = DEFAULT_INSTALLDIR |
| if not pimpDatabase: |
| pimpDatabase = DEFAULT_PIMPDATABASE |
| self.flavorOrder = flavorOrder |
| self.downloadDir = downloadDir |
| self.buildDir = buildDir |
| self.installDir = installDir |
| self.pimpDatabase = pimpDatabase |
| |
| def check(self): |
| """Check that the preferences make sense: directories exist and are |
| writable, the install directory is on sys.path, etc.""" |
| |
| rv = "" |
| RWX_OK = os.R_OK|os.W_OK|os.X_OK |
| if not os.path.exists(self.downloadDir): |
| rv += "Warning: Download directory \"%s\" does not exist\n" % self.downloadDir |
| elif not os.access(self.downloadDir, RWX_OK): |
| rv += "Warning: Download directory \"%s\" is not writable or not readable\n" % self.downloadDir |
| if not os.path.exists(self.buildDir): |
| rv += "Warning: Build directory \"%s\" does not exist\n" % self.buildDir |
| elif not os.access(self.buildDir, RWX_OK): |
| rv += "Warning: Build directory \"%s\" is not writable or not readable\n" % self.buildDir |
| if not os.path.exists(self.installDir): |
| rv += "Warning: Install directory \"%s\" does not exist\n" % self.installDir |
| elif not os.access(self.installDir, RWX_OK): |
| rv += "Warning: Install directory \"%s\" is not writable or not readable\n" % self.installDir |
| else: |
| installDir = os.path.realpath(self.installDir) |
| for p in sys.path: |
| try: |
| realpath = os.path.realpath(p) |
| except: |
| pass |
| if installDir == realpath: |
| break |
| else: |
| rv += "Warning: Install directory \"%s\" is not on sys.path\n" % self.installDir |
| return rv |
| |
| def compareFlavors(self, left, right): |
| """Compare two flavor strings. This is part of your preferences |
| because whether the user prefers installing from source or binary is.""" |
| if left in self.flavorOrder: |
| if right in self.flavorOrder: |
| return cmp(self.flavorOrder.index(left), self.flavorOrder.index(right)) |
| return -1 |
| if right in self.flavorOrder: |
| return 1 |
| return cmp(left, right) |
| |
| class PimpDatabase: |
| """Class representing a pimp database. It can actually contain |
| information from multiple databases through inclusion, but the |
| toplevel database is considered the master, as its maintainer is |
| "responsible" for the contents.""" |
| |
| def __init__(self, prefs): |
| self._packages = [] |
| self.preferences = prefs |
| self._urllist = [] |
| self._version = "" |
| self._maintainer = "" |
| self._description = "" |
| |
| def close(self): |
| """Clean up""" |
| self._packages = [] |
| self.preferences = None |
| |
| def appendURL(self, url, included=0): |
| """Append packages from the database with the given URL. |
| Only the first database should specify included=0, so the |
| global information (maintainer, description) get stored.""" |
| |
| if url in self._urllist: |
| return |
| self._urllist.append(url) |
| fp = MyURLopener().open(url).fp |
| dict = plistlib.Plist.fromFile(fp) |
| # Test here for Pimp version, etc |
| if not included: |
| self._version = dict.get('Version', '0.1') |
| if self._version != PIMP_VERSION: |
| sys.stderr.write("Warning: database version %s does not match %s\n" |
| % (self._version, PIMP_VERSION)) |
| self._maintainer = dict.get('Maintainer', '') |
| self._description = dict.get('Description', '') |
| self._appendPackages(dict['Packages']) |
| others = dict.get('Include', []) |
| for url in others: |
| self.appendURL(url, included=1) |
| |
| def _appendPackages(self, packages): |
| """Given a list of dictionaries containing package |
| descriptions create the PimpPackage objects and append them |
| to our internal storage.""" |
| |
| for p in packages: |
| p = dict(p) |
| flavor = p.get('Flavor') |
| if flavor == 'source': |
| pkg = PimpPackage_source(self, p) |
| elif flavor == 'binary': |
| pkg = PimpPackage_binary(self, p) |
| else: |
| pkg = PimpPackage(self, dict(p)) |
| self._packages.append(pkg) |
| |
| def list(self): |
| """Return a list of all PimpPackage objects in the database.""" |
| |
| return self._packages |
| |
| def listnames(self): |
| """Return a list of names of all packages in the database.""" |
| |
| rv = [] |
| for pkg in self._packages: |
| rv.append(pkg.fullname()) |
| rv.sort() |
| return rv |
| |
| def dump(self, pathOrFile): |
| """Dump the contents of the database to an XML .plist file. |
| |
| The file can be passed as either a file object or a pathname. |
| All data, including included databases, is dumped.""" |
| |
| packages = [] |
| for pkg in self._packages: |
| packages.append(pkg.dump()) |
| dict = { |
| 'Version': self._version, |
| 'Maintainer': self._maintainer, |
| 'Description': self._description, |
| 'Packages': packages |
| } |
| plist = plistlib.Plist(**dict) |
| plist.write(pathOrFile) |
| |
| def find(self, ident): |
| """Find a package. The package can be specified by name |
| or as a dictionary with name, version and flavor entries. |
| |
| Only name is obligatory. If there are multiple matches the |
| best one (higher version number, flavors ordered according to |
| users' preference) is returned.""" |
| |
| if type(ident) == str: |
| # Remove ( and ) for pseudo-packages |
| if ident[0] == '(' and ident[-1] == ')': |
| ident = ident[1:-1] |
| # Split into name-version-flavor |
| fields = ident.split('-') |
| if len(fields) < 1 or len(fields) > 3: |
| return None |
| name = fields[0] |
| if len(fields) > 1: |
| version = fields[1] |
| else: |
| version = None |
| if len(fields) > 2: |
| flavor = fields[2] |
| else: |
| flavor = None |
| else: |
| name = ident['Name'] |
| version = ident.get('Version') |
| flavor = ident.get('Flavor') |
| found = None |
| for p in self._packages: |
| if name == p.name() and \ |
| (not version or version == p.version()) and \ |
| (not flavor or flavor == p.flavor()): |
| if not found or found < p: |
| found = p |
| return found |
| |
| ALLOWED_KEYS = [ |
| "Name", |
| "Version", |
| "Flavor", |
| "Description", |
| "Home-page", |
| "Download-URL", |
| "Install-test", |
| "Install-command", |
| "Pre-install-command", |
| "Post-install-command", |
| "Prerequisites", |
| "MD5Sum" |
| ] |
| |
| class PimpPackage: |
| """Class representing a single package.""" |
| |
| def __init__(self, db, dict): |
| self._db = db |
| name = dict["Name"] |
| for k in dict.keys(): |
| if not k in ALLOWED_KEYS: |
| sys.stderr.write("Warning: %s: unknown key %s\n" % (name, k)) |
| self._dict = dict |
| |
| def __getitem__(self, key): |
| return self._dict[key] |
| |
| def name(self): return self._dict['Name'] |
| def version(self): return self._dict['Version'] |
| def flavor(self): return self._dict['Flavor'] |
| def description(self): return self._dict['Description'] |
| def homepage(self): return self._dict.get('Home-page') |
| def downloadURL(self): return self._dict['Download-URL'] |
| |
| def fullname(self): |
| """Return the full name "name-version-flavor" of a package. |
| |
| If the package is a pseudo-package, something that cannot be |
| installed through pimp, return the name in (parentheses).""" |
| |
| rv = self._dict['Name'] |
| if self._dict.has_key('Version'): |
| rv = rv + '-%s' % self._dict['Version'] |
| if self._dict.has_key('Flavor'): |
| rv = rv + '-%s' % self._dict['Flavor'] |
| if not self._dict.get('Download-URL'): |
| # Pseudo-package, show in parentheses |
| rv = '(%s)' % rv |
| return rv |
| |
| def dump(self): |
| """Return a dict object containing the information on the package.""" |
| return self._dict |
| |
| def __cmp__(self, other): |
| """Compare two packages, where the "better" package sorts lower.""" |
| |
| if not isinstance(other, PimpPackage): |
| return cmp(id(self), id(other)) |
| if self.name() != other.name(): |
| return cmp(self.name(), other.name()) |
| if self.version() != other.version(): |
| return -cmp(self.version(), other.version()) |
| return self._db.preferences.compareFlavors(self.flavor(), other.flavor()) |
| |
| def installed(self): |
| """Test wheter the package is installed. |
| |
| Returns two values: a status indicator which is one of |
| "yes", "no", "old" (an older version is installed) or "bad" |
| (something went wrong during the install test) and a human |
| readable string which may contain more details.""" |
| |
| namespace = { |
| "NotInstalled": _scriptExc_NotInstalled, |
| "OldInstalled": _scriptExc_OldInstalled, |
| "BadInstalled": _scriptExc_BadInstalled, |
| "os": os, |
| "sys": sys, |
| } |
| installTest = self._dict['Install-test'].strip() + '\n' |
| try: |
| exec installTest in namespace |
| except ImportError, arg: |
| return "no", str(arg) |
| except _scriptExc_NotInstalled, arg: |
| return "no", str(arg) |
| except _scriptExc_OldInstalled, arg: |
| return "old", str(arg) |
| except _scriptExc_BadInstalled, arg: |
| return "bad", str(arg) |
| except: |
| sys.stderr.write("-------------------------------------\n") |
| sys.stderr.write("---- %s: install test got exception\n" % self.fullname()) |
| sys.stderr.write("---- source:\n") |
| sys.stderr.write(installTest) |
| sys.stderr.write("---- exception:\n") |
| import traceback |
| traceback.print_exc(file=sys.stderr) |
| if self._db._maintainer: |
| sys.stderr.write("---- Please copy this and mail to %s\n" % self._db._maintainer) |
| sys.stderr.write("-------------------------------------\n") |
| return "bad", "Package install test got exception" |
| return "yes", "" |
| |
| def prerequisites(self): |
| """Return a list of prerequisites for this package. |
| |
| The list contains 2-tuples, of which the first item is either |
| a PimpPackage object or None, and the second is a descriptive |
| string. The first item can be None if this package depends on |
| something that isn't pimp-installable, in which case the descriptive |
| string should tell the user what to do.""" |
| |
| rv = [] |
| if not self._dict.get('Download-URL'): |
| return [(None, |
| "%s: This package needs to be installed manually (no Download-URL field)" % |
| self.fullname())] |
| if not self._dict.get('Prerequisites'): |
| return [] |
| for item in self._dict['Prerequisites']: |
| if type(item) == str: |
| pkg = None |
| descr = str(item) |
| else: |
| name = item['Name'] |
| if item.has_key('Version'): |
| name = name + '-' + item['Version'] |
| if item.has_key('Flavor'): |
| name = name + '-' + item['Flavor'] |
| pkg = self._db.find(name) |
| if not pkg: |
| descr = "Requires unknown %s"%name |
| else: |
| descr = pkg.description() |
| rv.append((pkg, descr)) |
| return rv |
| |
| def _cmd(self, output, dir, *cmditems): |
| """Internal routine to run a shell command in a given directory.""" |
| |
| cmd = ("cd \"%s\"; " % dir) + " ".join(cmditems) |
| if output: |
| output.write("+ %s\n" % cmd) |
| if NO_EXECUTE: |
| return 0 |
| dummy, fp = os.popen4(cmd, "r") |
| dummy.close() |
| while 1: |
| line = fp.readline() |
| if not line: |
| break |
| if output: |
| output.write(line) |
| rv = fp.close() |
| return rv |
| |
| def downloadPackageOnly(self, output=None): |
| """Download a single package, if needed. |
| |
| An MD5 signature is used to determine whether download is needed, |
| and to test that we actually downloaded what we expected. |
| If output is given it is a file-like object that will receive a log |
| of what happens. |
| |
| If anything unforeseen happened the method returns an error message |
| string. |
| """ |
| |
| scheme, loc, path, query, frag = urlparse.urlsplit(self._dict['Download-URL']) |
| path = urllib.url2pathname(path) |
| filename = os.path.split(path)[1] |
| self.archiveFilename = os.path.join(self._db.preferences.downloadDir, filename) |
| if not self._archiveOK(): |
| if scheme == 'manual': |
| return "Please download package manually and save as %s" % self.archiveFilename |
| if self._cmd(output, self._db.preferences.downloadDir, |
| "curl", |
| "--output", self.archiveFilename, |
| self._dict['Download-URL']): |
| return "download command failed" |
| if not os.path.exists(self.archiveFilename) and not NO_EXECUTE: |
| return "archive not found after download" |
| if not self._archiveOK(): |
| return "archive does not have correct MD5 checksum" |
| |
| def _archiveOK(self): |
| """Test an archive. It should exist and the MD5 checksum should be correct.""" |
| |
| if not os.path.exists(self.archiveFilename): |
| return 0 |
| if not self._dict.get('MD5Sum'): |
| sys.stderr.write("Warning: no MD5Sum for %s\n" % self.fullname()) |
| return 1 |
| data = open(self.archiveFilename, 'rb').read() |
| checksum = md5.new(data).hexdigest() |
| return checksum == self._dict['MD5Sum'] |
| |
| def unpackPackageOnly(self, output=None): |
| """Unpack a downloaded package archive.""" |
| |
| filename = os.path.split(self.archiveFilename)[1] |
| for ext, cmd in ARCHIVE_FORMATS: |
| if filename[-len(ext):] == ext: |
| break |
| else: |
| return "unknown extension for archive file: %s" % filename |
| self.basename = filename[:-len(ext)] |
| cmd = cmd % self.archiveFilename |
| if self._cmd(output, self._db.preferences.buildDir, cmd): |
| return "unpack command failed" |
| |
| def installPackageOnly(self, output=None): |
| """Default install method, to be overridden by subclasses""" |
| return "%s: This package needs to be installed manually (no support for flavor=\"%s\")" \ |
| % (self.fullname(), self._dict.get(flavor, "")) |
| |
| def installSinglePackage(self, output=None): |
| """Download, unpack and install a single package. |
| |
| If output is given it should be a file-like object and it |
| will receive a log of what happened.""" |
| |
| if not self._dict['Download-URL']: |
| return "%s: This package needs to be installed manually (no Download-URL field)" % _fmtpackagename(self) |
| msg = self.downloadPackageOnly(output) |
| if msg: |
| return "%s: download: %s" % (self.fullname(), msg) |
| |
| msg = self.unpackPackageOnly(output) |
| if msg: |
| return "%s: unpack: %s" % (self.fullname(), msg) |
| |
| return self.installPackageOnly(output) |
| |
| def beforeInstall(self): |
| """Bookkeeping before installation: remember what we have in site-packages""" |
| self._old_contents = os.listdir(self._db.preferences.installDir) |
| |
| def afterInstall(self): |
| """Bookkeeping after installation: interpret any new .pth files that have |
| appeared""" |
| |
| new_contents = os.listdir(self._db.preferences.installDir) |
| for fn in new_contents: |
| if fn in self._old_contents: |
| continue |
| if fn[-4:] != '.pth': |
| continue |
| fullname = os.path.join(self._db.preferences.installDir, fn) |
| f = open(fullname) |
| for line in f.readlines(): |
| if not line: |
| continue |
| if line[0] == '#': |
| continue |
| if line[:6] == 'import': |
| exec line |
| continue |
| if line[-1] == '\n': |
| line = line[:-1] |
| if not os.path.isabs(line): |
| line = os.path.join(self._db.preferences.installDir, line) |
| line = os.path.realpath(line) |
| if not line in sys.path: |
| sys.path.append(line) |
| |
| class PimpPackage_binary(PimpPackage): |
| |
| def unpackPackageOnly(self, output=None): |
| """We don't unpack binary packages until installing""" |
| pass |
| |
| def installPackageOnly(self, output=None): |
| """Install a single source package. |
| |
| If output is given it should be a file-like object and it |
| will receive a log of what happened.""" |
| print 'PimpPackage_binary installPackageOnly' |
| |
| msgs = [] |
| if self._dict.has_key('Pre-install-command'): |
| msg.append("%s: Pre-install-command ignored" % self.fullname()) |
| if self._dict.has_key('Install-command'): |
| msgs.append("%s: Install-command ignored" % self.fullname()) |
| if self._dict.has_key('Post-install-command'): |
| msgs.append("%s: Post-install-command ignored" % self.fullname()) |
| |
| self.beforeInstall() |
| |
| # Install by unpacking |
| filename = os.path.split(self.archiveFilename)[1] |
| for ext, cmd in ARCHIVE_FORMATS: |
| if filename[-len(ext):] == ext: |
| break |
| else: |
| return "unknown extension for archive file: %s" % filename |
| |
| # Extract the files in the root folder. |
| cmd = cmd % self.archiveFilename |
| if self._cmd(output, "/", cmd): |
| return "unpack command failed" |
| |
| self.afterInstall() |
| |
| if self._dict.has_key('Post-install-command'): |
| if self._cmd(output, self._buildDirname, self._dict['Post-install-command']): |
| return "post-install %s: running \"%s\" failed" % \ |
| (self.fullname(), self._dict['Post-install-command']) |
| return None |
| |
| |
| class PimpPackage_source(PimpPackage): |
| |
| def unpackPackageOnly(self, output=None): |
| """Unpack a source package and check that setup.py exists""" |
| PimpPackage.unpackPackageOnly(self, output) |
| # Test that a setup script has been create |
| self._buildDirname = os.path.join(self._db.preferences.buildDir, self.basename) |
| setupname = os.path.join(self._buildDirname, "setup.py") |
| if not os.path.exists(setupname) and not NO_EXECUTE: |
| return "no setup.py found after unpack of archive" |
| |
| def installPackageOnly(self, output=None): |
| """Install a single source package. |
| |
| If output is given it should be a file-like object and it |
| will receive a log of what happened.""" |
| |
| if self._dict.has_key('Pre-install-command'): |
| if self._cmd(output, self._buildDirname, self._dict['Pre-install-command']): |
| return "pre-install %s: running \"%s\" failed" % \ |
| (self.fullname(), self._dict['Pre-install-command']) |
| |
| self.beforeInstall() |
| installcmd = self._dict.get('Install-command') |
| if not installcmd: |
| installcmd = '"%s" setup.py install' % sys.executable |
| if self._cmd(output, self._buildDirname, installcmd): |
| return "install %s: running \"%s\" failed" % self.fullname() |
| |
| self.afterInstall() |
| |
| if self._dict.has_key('Post-install-command'): |
| if self._cmd(output, self._buildDirname, self._dict['Post-install-command']): |
| return "post-install %s: running \"%s\" failed" % \ |
| (self.fullname(), self._dict['Post-install-command']) |
| return None |
| |
| |
| class PimpInstaller: |
| """Installer engine: computes dependencies and installs |
| packages in the right order.""" |
| |
| def __init__(self, db): |
| self._todo = [] |
| self._db = db |
| self._curtodo = [] |
| self._curmessages = [] |
| |
| def __contains__(self, package): |
| return package in self._todo |
| |
| def _addPackages(self, packages): |
| for package in packages: |
| if not package in self._todo: |
| self._todo.insert(0, package) |
| |
| def _prepareInstall(self, package, force=0, recursive=1): |
| """Internal routine, recursive engine for prepareInstall. |
| |
| Test whether the package is installed and (if not installed |
| or if force==1) prepend it to the temporary todo list and |
| call ourselves recursively on all prerequisites.""" |
| |
| if not force: |
| status, message = package.installed() |
| if status == "yes": |
| return |
| if package in self._todo or package in self._curtodo: |
| return |
| self._curtodo.insert(0, package) |
| if not recursive: |
| return |
| prereqs = package.prerequisites() |
| for pkg, descr in prereqs: |
| if pkg: |
| self._prepareInstall(pkg, force, recursive) |
| else: |
| self._curmessages.append("Requires: %s" % descr) |
| |
| def prepareInstall(self, package, force=0, recursive=1): |
| """Prepare installation of a package. |
| |
| If the package is already installed and force is false nothing |
| is done. If recursive is true prerequisites are installed first. |
| |
| Returns a list of packages (to be passed to install) and a list |
| of messages of any problems encountered. |
| """ |
| |
| self._curtodo = [] |
| self._curmessages = [] |
| self._prepareInstall(package, force, recursive) |
| rv = self._curtodo, self._curmessages |
| self._curtodo = [] |
| self._curmessages = [] |
| return rv |
| |
| def install(self, packages, output): |
| """Install a list of packages.""" |
| |
| self._addPackages(packages) |
| status = [] |
| for pkg in self._todo: |
| msg = pkg.installSinglePackage(output) |
| if msg: |
| status.append(msg) |
| return status |
| |
| |
| |
| def _run(mode, verbose, force, args): |
| """Engine for the main program""" |
| |
| prefs = PimpPreferences() |
| prefs.check() |
| db = PimpDatabase(prefs) |
| db.appendURL(prefs.pimpDatabase) |
| |
| if mode == 'dump': |
| db.dump(sys.stdout) |
| elif mode =='list': |
| if not args: |
| args = db.listnames() |
| print "%-20.20s\t%s" % ("Package", "Description") |
| print |
| for pkgname in args: |
| pkg = db.find(pkgname) |
| if pkg: |
| description = pkg.description() |
| pkgname = pkg.fullname() |
| else: |
| description = 'Error: no such package' |
| print "%-20.20s\t%s" % (pkgname, description) |
| if verbose: |
| print "\tHome page:\t", pkg.homepage() |
| print "\tDownload URL:\t", pkg.downloadURL() |
| elif mode =='status': |
| if not args: |
| args = db.listnames() |
| print "%-20.20s\t%s\t%s" % ("Package", "Installed", "Message") |
| print |
| for pkgname in args: |
| pkg = db.find(pkgname) |
| if pkg: |
| status, msg = pkg.installed() |
| pkgname = pkg.fullname() |
| else: |
| status = 'error' |
| msg = 'No such package' |
| print "%-20.20s\t%-9.9s\t%s" % (pkgname, status, msg) |
| if verbose and status == "no": |
| prereq = pkg.prerequisites() |
| for pkg, msg in prereq: |
| if not pkg: |
| pkg = '' |
| else: |
| pkg = pkg.fullname() |
| print "%-20.20s\tRequirement: %s %s" % ("", pkg, msg) |
| elif mode == 'install': |
| if not args: |
| print 'Please specify packages to install' |
| sys.exit(1) |
| inst = PimpInstaller(db) |
| for pkgname in args: |
| pkg = db.find(pkgname) |
| if not pkg: |
| print '%s: No such package' % pkgname |
| continue |
| list, messages = inst.prepareInstall(pkg, force) |
| if messages and not force: |
| print "%s: Not installed:" % pkgname |
| for m in messages: |
| print "\t", m |
| else: |
| if verbose: |
| output = sys.stdout |
| else: |
| output = None |
| messages = inst.install(list, output) |
| if messages: |
| print "%s: Not installed:" % pkgname |
| for m in messages: |
| print "\t", m |
| |
| def main(): |
| """Minimal commandline tool to drive pimp.""" |
| |
| import getopt |
| def _help(): |
| print "Usage: pimp [-v] -s [package ...] List installed status" |
| print " pimp [-v] -l [package ...] Show package information" |
| print " pimp [-vf] -i package ... Install packages" |
| print " pimp -d Dump database to stdout" |
| print "Options:" |
| print " -v Verbose" |
| print " -f Force installation" |
| sys.exit(1) |
| |
| try: |
| opts, args = getopt.getopt(sys.argv[1:], "slifvd") |
| except getopt.Error: |
| _help() |
| if not opts and not args: |
| _help() |
| mode = None |
| force = 0 |
| verbose = 0 |
| for o, a in opts: |
| if o == '-s': |
| if mode: |
| _help() |
| mode = 'status' |
| if o == '-l': |
| if mode: |
| _help() |
| mode = 'list' |
| if o == '-d': |
| if mode: |
| _help() |
| mode = 'dump' |
| if o == '-i': |
| mode = 'install' |
| if o == '-f': |
| force = 1 |
| if o == '-v': |
| verbose = 1 |
| if not mode: |
| _help() |
| _run(mode, verbose, force, args) |
| |
| if __name__ == '__main__': |
| main() |
| |
| |