def satisfyTarget(name, version_required, working_directory, update_installed=None):
''' returns a Target for the specified version (either to an already
installed copy (from disk), or to a newly downloaded one), or None if
the version could not be satisfied.
update_installed = {None, 'Check', 'Update'}
None: prevent any attempt to look for new versions if the
target already exists
Check: check for new versions, and pass new version information to
the target object
Update: replace any existing version with the newest available, if
the newest available has a higher version
'''
spec = None
v = None
target_path = os.path.join(working_directory, name)
local_target = target.Target(
target_path,
installed_linked = fsutils.isLink(target_path),
latest_suitable_version = v
)
if local_target and (local_target.installedLinked() or update_installed != 'Update' or not local_target.outdated()):
# if a target exists (has a valid description file), and either is
# not outdated, or we are not updating
return local_target
# if we need to check for latest versions, get the latest available version
# before checking for a local target so that we can create the local
# target with a handle to its latest available version
if update_installed is None:
logger.debug('attempt to check latest version of %s @%s...' % (name, version_required))
v = latestSuitableVersion(name, version_required, registry='targets')
elif local_target and local_target.outdated():
logger.info('%soutdated: %s@%s -> %s' % (
('update ' if update_installed == 'Update' else ''),
name,
local_target.getVersion(),
v
))
# must rm the old target before continuing
fsutils.rmRf(target_path)
if not v and update_installed is not None:
v = latestSuitableVersion(name, version_required, registry='targets')
if not v:
raise access_common.TargetUnavailable(
'Target "%s":"%s" is not a supported form.' % (name, version_required)
)
directory = os.path.join(working_directory, name)
v.unpackInto(directory)
r = target.Target(directory)
if not r:
raise Exception(
'Dependency "%s":"%s" is not a valid target.' % (name, version_required)
)
return r
def unpackInto(self, directory):
logger.debug('unpack version %s from git repo %s to %s' % (self.version, self.working_copy.directory, directory))
tag = self.tag
fsutils.rmRf(directory)
vcs.Git.cloneToDirectory(self.working_copy.directory, directory, tag)
# remove temporary files created by the GitWorkingCopy clone
self.working_copy.remove()
def unpackInto(self, directory):
logger.debug('unpack version %s from git repo %s to %s' %
(self.version, self.working_copy.directory, directory))
tag = self.tag
fsutils.rmRf(directory)
vcs.Git.cloneToDirectory(self.working_copy.directory, directory, tag)
# remove temporary files created by the GitWorkingCopy clone
self.working_copy.remove()
def satisfyVersionFromSearchPaths(name,
version_required,
search_paths,
update=False,
type='module'):
''' returns a Component/Target for the specified version, if found in the
list of search paths. If `update' is True, then also check for newer
versions of the found component, and update it in-place (unless it was
installed via a symlink).
'''
v = None
try:
local_version = searchPathsFor(
name,
sourceparse.parseSourceURL(version_required).semanticSpec(),
search_paths, type)
except pack.InvalidDescription as e:
logger.error(e)
return None
logger.debug("%s %s locally" %
(('found', 'not found')[not local_version], name))
if local_version:
if update and not local_version.installedLinked():
#logger.debug('attempt to check latest version of %s @%s...' % (name, version_required))
v = latestSuitableVersion(name,
version_required,
registry=_registryNamespaceForType(type))
if local_version:
local_version.setLatestAvailable(v)
# if we don't need to update, then we're done
if local_version.installedLinked() or not local_version.outdated():
logger.debug("satisfy component from directory: %s" %
local_version.path)
# if a component exists (has a valid description file), and either is
# not outdated, or we are not updating
if name != local_version.getName():
raise Exception(
'Component %s found in incorrectly named directory %s (%s)'
% (local_version.getName(), name, local_version.path))
return local_version
# otherwise, we need to update the installed component
logger.info('update outdated: %s@%s -> %s' %
(name, local_version.getVersion(), v))
# must rm the old component before continuing
fsutils.rmRf(local_version.path)
return _satisfyVersionByInstallingVersion(name,
version_required,
local_version.path,
v,
type=type)
return None
def unpackInto(self, directory):
logger.debug("unpack version %s from hg repo %s to %s" % (self.version, self.working_copy.directory, directory))
if self.isTip():
tag = None
else:
tag = self.tag
fsutils.rmRf(directory)
vcs.HG.cloneToDirectory(self.working_copy.directory, directory, tag)
# remove temporary files created by the HGWorkingCopy clone
self.working_copy.remove()
def unpackInto(self, directory):
logger.debug('unpack version %s from hg repo %s to %s' %
(self.version, self.working_copy.directory, directory))
if self.isTip():
tag = None
else:
tag = self.tag
fsutils.rmRf(directory)
vcs.HG.cloneToDirectory(self.working_copy.directory, directory, tag)
# remove temporary files created by the HGWorkingCopy clone
self.working_copy.remove()
def satisfyVersionFromSearchPaths(name, version_required, search_paths, update=False, type='module', inherit_shrinkwrap=None):
''' returns a Component/Target for the specified version, if found in the
list of search paths. If `update' is True, then also check for newer
versions of the found component, and update it in-place (unless it was
installed via a symlink).
'''
v = None
try:
local_version = searchPathsFor(
name,
sourceparse.parseSourceURL(version_required).semanticSpec(),
search_paths,
type,
inherit_shrinkwrap = inherit_shrinkwrap
)
except pack.InvalidDescription as e:
logger.error(e)
return None
logger.debug("%s %s locally" % (('found', 'not found')[not local_version], name))
if local_version:
if update and not local_version.installedLinked():
#logger.debug('attempt to check latest version of %s @%s...' % (name, version_required))
v = latestSuitableVersion(name, version_required, registry=_registryNamespaceForType(type))
if local_version:
local_version.setLatestAvailable(v)
# if we don't need to update, then we're done
if local_version.installedLinked() or not local_version.outdated():
logger.debug("satisfy component from directory: %s" % local_version.path)
# if a component exists (has a valid description file), and either is
# not outdated, or we are not updating
if name != local_version.getName():
raise Exception('Component %s found in incorrectly named directory %s (%s)' % (
local_version.getName(), name, local_version.path
))
return local_version
# otherwise, we need to update the installed component
logger.info('update outdated: %s@%s -> %s' % (
name,
local_version.getVersion(),
v
))
# must rm the old component before continuing
fsutils.rmRf(local_version.path)
return _satisfyVersionByInstallingVersion(
name, version_required, local_version.path, v, type=type, inherit_shrinkwrap=inherit_shrinkwrap
)
return None
def unpackFrom(tar_file_path, to_directory):
# first unpack into a sibling directory of the specified directory, and
# then move it into place.
# we expect our tarballs to contain a single top-level directory. We strip
# off this name as we extract to minimise the path length
into_parent_dir = os.path.dirname(to_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
try:
with tarfile.open(tar_file_path) as tf:
strip_dirname = ''
# get the extraction directory name from the first part of the
# extraction paths: it should be the same for all members of
# the archive
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
logger.debug('process member: %s %s', m.name, split_path)
if os.path.isabs(m.name) or '..' in split_path:
raise ValueError('archive uses invalid paths')
if not strip_dirname:
if len(split_path) != 1 or not len(split_path[0]):
raise ValueError(
'archive does not appear to contain a single module'
)
strip_dirname = split_path[0]
continue
else:
if split_path[0] != strip_dirname:
raise ValueError(
'archive does not appear to contain a single module'
)
m.name = os.path.join(*split_path[1:])
tf.extract(m, path=temp_directory)
# make sure the destination directory doesn't exist:
fsutils.rmRf(to_directory)
shutil.move(temp_directory, to_directory)
temp_directory = None
logger.debug('extraction complete %s', to_directory)
except IOError as e:
if e.errno != errno.ENOENT:
logger.error('failed to extract tarfile %s', e)
fsutils.rmF(tar_file_path)
raise
finally:
if temp_directory is not None:
# if anything has failed, cleanup
fsutils.rmRf(temp_directory)
def unpackFrom(tar_file_path, to_directory):
# first unpack into a sibling directory of the specified directory, and
# then move it into place.
# we expect our tarballs to contain a single top-level directory. We strip
# off this name as we extract to minimise the path length
into_parent_dir = os.path.dirname(to_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
try:
with tarfile.open(tar_file_path) as tf:
strip_dirname = ''
# get the extraction directory name from the first part of the
# extraction paths: it should be the same for all members of
# the archive
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
logger.debug('process member: %s %s', m.name, split_path)
if os.path.isabs(m.name) or '..' in split_path:
raise ValueError('archive uses invalid paths')
if not strip_dirname:
if len(split_path) != 1 or not len(split_path[0]):
raise ValueError('archive does not appear to contain a single module')
strip_dirname = split_path[0]
continue
else:
if split_path[0] != strip_dirname:
raise ValueError('archive does not appear to contain a single module')
m.name = os.path.join(*split_path[1:])
tf.extract(m, path=temp_directory)
# make sure the destination directory doesn't exist:
fsutils.rmRf(to_directory)
shutil.move(temp_directory, to_directory)
temp_directory = None
logger.debug('extraction complete %s', to_directory)
except IOError as e:
if e.errno != errno.ENOENT:
logger.error('failed to extract tarfile %s', e)
fsutils.rmF(tar_file_path)
raise
finally:
if temp_directory is not None:
# if anything has failed, cleanup
fsutils.rmRf(temp_directory)
def satisfyVersionFromSearchPaths(name,
version_required,
search_paths,
update=False):
''' returns a Component for the specified version, if found in the list of
search paths. If `update' is True, then also check for newer versions
of the found component, and update it in-place (unless it was installed
via a symlink).
'''
spec = None
v = None
local_component = searchPathsForComponent(name, version_required,
search_paths)
logger.debug("%s %s locally" %
(('found', 'not found')[not local_component], name))
if local_component:
if update and not local_component.installedLinked():
#logger.debug('attempt to check latest version of %s @%s...' % (name, version_required))
v = latestSuitableVersion(name, version_required)
if local_component:
local_component.setLatestAvailable(v)
# if we don't need to update, then we're done
if local_component.installedLinked() or not local_component.outdated():
logger.debug("satisfy component from directory: %s" %
local_component.path)
# if a component exists (has a valid description file), and either is
# not outdated, or we are not updating
if name != local_component.getName():
raise Exception(
'Component %s found in incorrectly named directory %s (%s)'
% (local_component.getName(), name, local_component.path))
return local_component
# otherwise, we need to update the installed component
logger.info('update outdated: %s@%s -> %s' %
(name, local_component.getVersion(), v))
# must rm the old component before continuing
fsutils.rmRf(local_component.path)
return _satisfyVersionByInstallingVersion(name, version_required,
local_component.path, v)
return None
def satisfyVersionFromSearchPaths(name, version_required, search_paths, update=False):
''' returns a Component for the specified version, if found in the list of
search paths. If `update' is True, then also check for newer versions
of the found component, and update it in-place (unless it was installed
via a symlink).
'''
spec = None
v = None
local_component = searchPathsForComponent(name, version_required, search_paths)
logger.debug("%s %s locally" % (('found', 'not found')[not local_component], name))
if local_component:
if update and not local_component.installedLinked():
#logger.debug('attempt to check latest version of %s @%s...' % (name, version_required))
v = latestSuitableVersion(name, version_required)
if local_component:
local_component.setLatestAvailable(v)
# if we don't need to update, then we're done
if local_component.installedLinked() or not local_component.outdated():
logger.debug("satisfy component from directory: %s" % local_component.path)
# if a component exists (has a valid description file), and either is
# not outdated, or we are not updating
if name != local_component.getName():
raise Exception('Component %s found in incorrectly named directory %s (%s)' % (
local_component.getName(), name, local_component.path
))
return local_component
# otherwise, we need to update the installed component
logger.info('update outdated: %s@%s -> %s' % (
name,
local_component.getVersion(),
v
))
# must rm the old component before continuing
fsutils.rmRf(local_component.path)
return _satisfyVersionByInstallingVersion(name, version_required, local_component.path, v)
return None
def remove(self):
fsutils.rmRf(self.worktree)
def remove(self):
fsutils.rmRf(self.worktree)
def satisfyTarget(name,
version_required,
working_directory,
update_installed=None):
''' returns a Target for the specified version (either to an already
installed copy (from disk), or to a newly downloaded one), or None if
the version could not be satisfied.
update_installed = {None, 'Check', 'Update'}
None: prevent any attempt to look for new versions if the
target already exists
Check: check for new versions, and pass new version information to
the target object
Update: replace any existing version with the newest available, if
the newest available has a higher version
'''
spec = None
v = None
target_path = os.path.join(working_directory, name)
local_target = target.Target(target_path,
installed_linked=fsutils.isLink(target_path),
latest_suitable_version=v)
if local_target and (local_target.installedLinked()
or update_installed != 'Update'
or not local_target.outdated()):
# if a target exists (has a valid description file), and either is
# not outdated, or we are not updating
return local_target
# if we need to check for latest versions, get the latest available version
# before checking for a local target so that we can create the local
# target with a handle to its latest available version
if update_installed is None:
logger.debug('attempt to check latest version of %s @%s...' %
(name, version_required))
v = latestSuitableVersion(name, version_required, registry='targets')
elif local_target and local_target.outdated():
logger.info('%soutdated: %s@%s -> %s' %
(('update ' if update_installed == 'Update' else ''), name,
local_target.getVersion(), v))
# must rm the old target before continuing
fsutils.rmRf(target_path)
if not v and update_installed is not None:
v = latestSuitableVersion(name, version_required, registry='targets')
if not v:
raise access_common.TargetUnavailable(
'"%s" is not a supported specification for a target (the target is %s)'
% (version_required, name))
directory = os.path.join(working_directory, name)
v.unpackInto(directory)
r = target.Target(directory)
if not r:
raise Exception(
'"%s":"%s" is not a valid target (its description file is invalid)'
% (name, version_required))
return r
def unpackTarballStream(stream, into_directory, hash=(None, None)):
''' Unpack a stream-like object that contains a tarball into a directory
'''
hash_name = hash[0]
hash_value = hash[1]
if hash_name:
m = getattr(hashlib, hash_name)()
into_parent_dir = os.path.dirname(into_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
download_fname = os.path.join(temp_directory, 'download.tar.gz')
# remove any partially downloaded file: TODO: checksumming & caching of
# downloaded components in some central place
fsutils.rmF(download_fname)
# create the archive exclusively, we don't want someone else maliciously
# overwriting our tar archive with something that unpacks to an absolute
# path when we might be running sudo'd
try:
fd = os.open(
download_fname,
os.O_CREAT | os.O_EXCL | os.O_RDWR | getattr(os, "O_BINARY", 0))
with os.fdopen(fd, 'rb+') as f:
f.seek(0)
for chunk in stream.iter_content(1024):
f.write(chunk)
if hash_name:
m.update(chunk)
if hash_name:
calculated_hash = m.hexdigest()
logging.debug('calculated hash: %s check against: %s' %
(calculated_hash, hash_value))
if hash_value and (hash_value != calculated_hash):
raise Exception('Hash verification failed.')
f.truncate()
logging.debug('got file, extract into %s (for %s)', temp_directory,
into_directory)
# head back to the start of the file and untar (without closing the
# file)
f.seek(0)
f.flush()
os.fsync(f)
with tarfile.open(fileobj=f) as tf:
to_extract = []
# modify members to change where they extract to!
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
if len(split_path) > 1:
m.name = os.path.join(*(split_path[1:]))
to_extract.append(m)
tf.extractall(path=temp_directory, members=to_extract)
# remove the temporary download file, maybe in the future we will cache
# these somewhere
fsutils.rmRf(os.path.join(into_directory, 'download.tar.gz'))
# move the directory we extracted stuff into to where we actually want it
# to be
fsutils.rmRf(into_directory)
shutil.move(temp_directory, into_directory)
finally:
fsutils.rmRf(temp_directory)
logging.debug('extraction complete %s', into_directory)
def unpackTarballStream(stream, into_directory, hash=(None, None)):
''' Unpack a stream-like object that contains a tarball into a directory
'''
hash_name = hash[0]
hash_value = hash[1]
if hash_name:
m = getattr(hashlib, hash_name)()
into_parent_dir = os.path.dirname(into_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
download_fname = os.path.join(temp_directory, 'download.tar.gz')
# remove any partially downloaded file: TODO: checksumming & caching of
# downloaded components in some central place
fsutils.rmF(download_fname)
# create the archive exclusively, we don't want someone else maliciously
# overwriting our tar archive with something that unpacks to an absolute
# path when we might be running sudo'd
try:
fd = os.open(download_fname, os.O_CREAT | os.O_EXCL |
os.O_RDWR | getattr(os, "O_BINARY", 0))
with os.fdopen(fd, 'rb+') as f:
f.seek(0)
for chunk in stream.iter_content(1024):
f.write(chunk)
if hash_name:
m.update(chunk)
if hash_name:
calculated_hash = m.hexdigest()
logging.debug(
'calculated hash: %s check against: %s' % (calculated_hash, hash_value))
if hash_value and (hash_value != calculated_hash):
raise Exception('Hash verification failed.')
f.truncate()
logging.debug(
'got file, extract into %s (for %s)', temp_directory, into_directory)
# head back to the start of the file and untar (without closing the
# file)
f.seek(0)
f.flush()
os.fsync(f)
with tarfile.open(fileobj=f) as tf:
to_extract = []
# modify members to change where they extract to!
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
if len(split_path) > 1:
m.name = os.path.join(*(split_path[1:]))
to_extract.append(m)
tf.extractall(path=temp_directory, members=to_extract)
# remove the temporary download file, maybe in the future we will cache
# these somewhere
fsutils.rmRf(os.path.join(into_directory, 'download.tar.gz'))
# move the directory we extracted stuff into to where we actually want it
# to be
fsutils.rmRf(into_directory)
shutil.move(temp_directory, into_directory)
finally:
fsutils.rmRf(temp_directory)
logging.debug('extraction complete %s', into_directory)
def unpackTarballStream(stream, into_directory, hash=(None, None)):
''' Unpack a responses stream that contains a tarball into a directory
'''
hash_name = hash[0]
hash_value = hash[1]
if hash_name:
m = getattr(hashlib, hash_name)()
into_parent_dir = os.path.dirname(into_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
download_fname = os.path.join(temp_directory, 'download.tar.gz')
# remove any partially downloaded file: TODO: checksumming & caching of
# downloaded components in some central place
fsutils.rmF(download_fname)
# create the archive exclusively, we don't want someone else maliciously
# overwriting our tar archive with something that unpacks to an absolute
# path when we might be running sudo'd
try:
with _openExclusively(download_fname) as f:
f.seek(0)
for chunk in stream.iter_content(1024):
f.write(chunk)
if hash_name:
m.update(chunk)
if hash_name:
calculated_hash = m.hexdigest()
logger.debug(
'calculated %s hash: %s check against: %s' % (
hash_name, calculated_hash, hash_value
)
)
if hash_value and (hash_value != calculated_hash):
raise Exception('Hash verification failed.')
logger.debug('wrote tarfile of size: %s to %s', f.tell(), download_fname)
f.truncate()
logger.debug(
'got file, extract into %s (for %s)', temp_directory, into_directory
)
# head back to the start of the file and untar (without closing the
# file)
f.seek(0)
f.flush()
os.fsync(f)
with tarfile.open(fileobj=f) as tf:
extracted_dirname = ''
# get the extraction directory name from the first part of the
# extraction paths: it should be the same for all members of
# the archive
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
if len(split_path) > 1:
if extracted_dirname:
if split_path[0] != extracted_dirname:
raise ValueError('archive does not appear to contain a single module')
else:
extracted_dirname = split_path[0]
tf.extractall(path=temp_directory)
# move the directory we extracted stuff into to where we actually want it
# to be
fsutils.rmRf(into_directory)
shutil.move(os.path.join(temp_directory, extracted_dirname), into_directory)
finally:
fsutils.rmF(download_fname)
fsutils.rmRf(temp_directory)
logger.debug('extraction complete %s', into_directory)
def unpackTarballStream(stream, into_directory, hash=(None, None)):
''' Unpack a responses stream that contains a tarball into a directory
'''
hash_name = hash[0]
hash_value = hash[1]
if hash_name:
m = getattr(hashlib, hash_name)()
into_parent_dir = os.path.dirname(into_directory)
fsutils.mkDirP(into_parent_dir)
temp_directory = tempfile.mkdtemp(dir=into_parent_dir)
download_fname = os.path.join(temp_directory, 'download.tar.gz')
# remove any partially downloaded file: TODO: checksumming & caching of
# downloaded components in some central place
fsutils.rmF(download_fname)
# create the archive exclusively, we don't want someone else maliciously
# overwriting our tar archive with something that unpacks to an absolute
# path when we might be running sudo'd
try:
with _openExclusively(download_fname) as f:
f.seek(0)
for chunk in stream.iter_content(1024):
f.write(chunk)
if hash_name:
m.update(chunk)
if hash_name:
calculated_hash = m.hexdigest()
logger.debug(
'calculated %s hash: %s check against: %s' % (
hash_name, calculated_hash, hash_value
)
)
if hash_value and (hash_value != calculated_hash):
raise Exception('Hash verification failed.')
logger.debug('wrote tarfile of size: %s to %s', f.tell(), download_fname)
f.truncate()
logger.debug(
'got file, extract into %s (for %s)', temp_directory, into_directory
)
# head back to the start of the file and untar (without closing the
# file)
f.seek(0)
f.flush()
os.fsync(f)
with tarfile.open(fileobj=f) as tf:
extracted_dirname = ''
# get the extraction directory name from the first part of the
# extraction paths: it should be the same for all members of
# the archive
for m in tf.getmembers():
split_path = fsutils.fullySplitPath(m.name)
if len(split_path) > 1:
if extracted_dirname:
if split_path[0] != extracted_dirname:
raise ValueError('archive does not appear to contain a single module')
else:
extracted_dirname = split_path[0]
tf.extractall(path=temp_directory)
# move the directory we extracted stuff into to where we actually want it
# to be
fsutils.rmRf(into_directory)
shutil.move(os.path.join(temp_directory, extracted_dirname), into_directory)
finally:
fsutils.rmF(download_fname)
fsutils.rmRf(temp_directory)
logger.debug('extraction complete %s', into_directory)
