Class PkgPolicy

Guess the package name and version from the filename of an upstream archive.

Parameters:

• filename (string) - filename (archive or directory) from which to guess
• extra_regex - additional regex to apply, needs a 'package' and a 'version' group

Returns: tuple

>>> PkgPolicy.guess_upstream_src_version('foo-bar_0.2.orig.tar.gz')
('foo-bar', '0.2')
>>> PkgPolicy.guess_upstream_src_version('foo-Bar_0.2.orig.tar.gz')
('', '')
>>> PkgPolicy.guess_upstream_src_version('git-bar-0.2.tar.gz')
('git-bar', '0.2')
>>> PkgPolicy.guess_upstream_src_version('git-bar-0.2-rc1.tar.gz')
('git-bar', '0.2-rc1')
>>> PkgPolicy.guess_upstream_src_version('git-bar-0.2:~-rc1.tar.gz')
('git-bar', '0.2:~-rc1')
>>> PkgPolicy.guess_upstream_src_version('git-Bar-0A2d:rc1.tar.bz2')
('git-Bar', '0A2d:rc1')
>>> PkgPolicy.guess_upstream_src_version('git-1.tar.bz2')
('git', '1')
>>> PkgPolicy.guess_upstream_src_version('kvm_87+dfsg.orig.tar.gz')
('kvm', '87+dfsg')
>>> PkgPolicy.guess_upstream_src_version('foo-Bar-a.b.tar.gz')
('', '')
>>> PkgPolicy.guess_upstream_src_version('foo-bar_0.2.orig.tar.xz')
('foo-bar', '0.2')
>>> PkgPolicy.guess_upstream_src_version('foo-bar_0.2.orig.tar.lzma')
('foo-bar', '0.2')
>>> PkgPolicy.guess_upstream_src_version('foo-bar-0.2.zip')
('foo-bar', '0.2')
>>> PkgPolicy.guess_upstream_src_version('foo-bar-0.2.tlz')
('foo-bar', '0.2')

(package name, version) or ('', '')

Is this a valid package name?

>>> PkgPolicy.is_valid_packagename('doesnotmatter')
Traceback (most recent call last):
...
NotImplementedError: Class needs to provide packagename_re

Is this a valid upstream version number?

>>> PkgPolicy.is_valid_upstreamversion('doesnotmatter')
Traceback (most recent call last):
...
NotImplementedError: Class needs to provide upstreamversion_re

symlink orig tarball from orig_dir to output_dir

Returns:

True if link was created or src == dst False in case of error or src doesn't exist