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| Who has contributed to the PGXN client? | ||
| ======================================= | ||
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| Daniele Varrazzo | ||
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| He rushed to implement a client before David could do it in Perl! | ||
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| David Wheeler | ||
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| He is the PGXN mastermind: a lot of helpful design discussions. | ||
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| Peter Eisentraut | ||
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| First implementation of tarball support. Auto-sudo is not a good idea, I | ||
| got it. | ||
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| Hitoshi Harada | ||
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| Tricky installation corner cases. | ||
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| Andrey Popp | ||
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| Make selection. Helped the program not to suck on BSD! | ||
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| Also thank you everybody for the useful discussions on the PGXN mailing list, | ||
| bug reports, proofreading the docs and the general support to the project. | ||
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| """ | ||
| pgxnclient -- archives handling | ||
| """ | ||
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| # Copyright (C) 2011-2012 Daniele Varrazzo | ||
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| # This file is part of the PGXN client | ||
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| import os | ||
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| from pgxnclient.i18n import _ | ||
| from pgxnclient.utils import load_jsons | ||
| from pgxnclient.errors import PgxnClientException | ||
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| def from_spec(spec): | ||
| """Return an `Archive` instance to handle the file requested by *spec* | ||
| """ | ||
| assert spec.is_file() | ||
| return from_file(spec.filename) | ||
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| def from_file(filename): | ||
| """Return an `Archive` instance to handle the file *filename* | ||
| """ | ||
| from pgxnclient.zip import ZipArchive | ||
| from pgxnclient.tar import TarArchive | ||
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| for cls in (ZipArchive, TarArchive): | ||
| a = cls(filename) | ||
| if a.can_open(): | ||
| return a | ||
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| raise PgxnClientException( | ||
| _("can't open archive '%s': file type not recognized") | ||
| % filename) | ||
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| class Archive(object): | ||
| """Base class to handle archives.""" | ||
| def __init__(self, filename): | ||
| self.filename = filename | ||
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| def can_open(self): | ||
| """Return `!True` if the `!filename` can be opened by the obect.""" | ||
| raise NotImplementedError | ||
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| def open(self): | ||
| """Open the archive for usage. | ||
| Raise PgxnClientException if the archive can't be open. | ||
| """ | ||
| raise NotImplementedError | ||
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| def close(self): | ||
| """Close the archive after usage.""" | ||
| raise NotImplementedError | ||
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| def list_files(self): | ||
| """Return an iterable with the list of file names in the archive.""" | ||
| raise NotImplementedError | ||
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| def read(self, fn): | ||
| """Return a file's data from the archive.""" | ||
| raise NotImplementedError | ||
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| def unpack(self, destdir): | ||
| raise NotImplementedError | ||
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| def get_meta(self): | ||
| filename = self.filename | ||
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| self.open() | ||
| try: | ||
| # Return the first file with the expected name | ||
| for fn in self.list_files(): | ||
| if fn.endswith('META.json'): | ||
| return load_jsons(self.read(fn).decode('utf8')) | ||
| else: | ||
| raise PgxnClientException( | ||
| _("file 'META.json' not found in archive '%s'") % filename) | ||
| finally: | ||
| self.close() | ||
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| def _find_work_directory(self, destdir): | ||
| """ | ||
| Choose the directory where to work. | ||
| Because we are mostly a wrapper for pgxs, let's look for a makefile. | ||
| The tar should contain a single base directory, so return the first | ||
| dir we found containing a Makefile, alternatively just return the | ||
| unpacked dir | ||
| """ | ||
| for dir in os.listdir(destdir): | ||
| for fn in ('Makefile', 'makefile', 'GNUmakefile', 'configure'): | ||
| if os.path.exists(os.path.join(destdir, dir, fn)): | ||
| return os.path.join(destdir, dir) | ||
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| return destdir | ||
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@@ -122,3 +122,6 @@ def _get_exec(cmd): | |
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| return fn | ||
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| if __name__ == '__main__': | ||
| script() | ||
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