Remove install.py
This commit is contained in:
Romain Failliot
parent
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install.py
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install.py
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright (C) 2009-2010 Derrick Moser <derrick_moser@yahoo.com>
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# Copyright (C) 2015-2020 Romain "Creak" Failliot
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the licence, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program. You may also obtain a copy of the GNU General Public License
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# from the Free Software Foundation by visiting their web site
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# (http://www.fsf.org/) or by writing to the Free Software Foundation, Inc.,
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# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import glob
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import os
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import stat
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import subprocess
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import sys
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app_path = sys.argv[0]
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# print a message to stderr
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def logError(s):
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sys.stderr.write(f'{app_path}: {s}\n')
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# this install script should not be used on Windows
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if os.name == 'nt':
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logError('Wrong platform. Use scripts from the "windows-installer" directory instead.')
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sys.exit(1)
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# reset the umask so files we create will have the expected permissions
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os.umask(stat.S_IWGRP | stat.S_IWOTH)
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# option defaults
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options = { 'destdir': '/',
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'prefix': '/usr/local/',
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'sysconfdir': '/etc/',
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'examplesdir': '${sysconfdir}',
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'mandir': '${prefix}/share/man/',
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'pythonbin': '/usr/bin/env python' }
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install = True
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files_only = False
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# process --help option
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if len(sys.argv) == 2 and sys.argv[1] == '--help':
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print(f"""Usage: {app_path} [OPTION...]
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Install or remove Diffuse.
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Options:
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--help
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print this help text and quit
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--remove
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remove the program
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--destdir=PATH
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path to the installation's root directory
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default: {options['destdir']}
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--prefix=PATH
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common installation prefix for files
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default: {options['prefix']}
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--sysconfdir=PATH
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directory for installing read-only single-machine data
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default: {options['sysconfdir']}
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--examplesdir=PATH
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directory for example configuration files
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default: {options['examplesdir']}
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--mandir=PATH
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directory for man pages
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default: {options['mandir']}
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--pythonbin=PATH
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command for python interpreter
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default: {options['pythonbin']}
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--files-only
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only install/remove files; skip the post install/removal tasks""")
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sys.exit(0)
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# returns the list of components used in a path
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def components(s):
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return [ p for p in s.split(os.sep) if p != '' ]
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# returns a relative path from 'src' to 'dst'
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def relpath(src, dst):
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s1, s2, i = components(src), components(dst), 0
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while i < len(s1) and i < len(s2) and s1[i] == s2[i]:
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i += 1
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s = [ os.pardir ] * (len(s1) - i)
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s.extend(s2[i:])
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return os.sep.join(s)
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# apply a set of text substitution rules on a string
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def replace(s, rules, i=0):
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if i < len(rules):
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k, v = rules[i]
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a = s.split(k)
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for j in range(len(a)):
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a[j] = replace(a[j], rules, i + 1)
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s = v.join(a)
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return s
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# create directories
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def createDirs(d):
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p = os.sep
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for c in components(d):
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p = os.path.join(p, c)
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if not os.path.isdir(p):
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os.mkdir(p)
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# remove a file
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def removeFile(f):
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try:
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os.unlink(f)
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except OSError:
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logError(f'Error removing "{f}".')
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# install/remove sets of files
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def processFiles(install, dst, src, template):
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for k, v in template.items():
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for s in glob.glob(os.path.join(src, k)):
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d = s.replace(src, dst, 1)
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if install:
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createDirs(os.path.dirname(d))
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# install file
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f = open(s, 'rb')
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c = f.read()
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f.close()
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if v is not None:
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c = replace(c, v)
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print(f'Installing {d}')
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f = open(d, 'wb')
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f.write(c)
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f.close()
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if k == 'bin/diffuse':
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# turn on the execute bits
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os.chmod(d, 0o755)
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else:
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# remove file
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print(f'Removing {d}')
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removeFile(d)
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# compile .po files and install
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def processTranslations(install, dst):
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for s in glob.glob('translations/*.po'):
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lang = s[13:-3]
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d = os.path.join(dst, f'share/locale/{lang}/LC_MESSAGES/diffuse.mo')
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if install:
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# install file
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try:
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print(f'Installing {d}')
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createDirs(os.path.dirname(d))
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if subprocess.Popen(['msgfmt', '-o', d, s]).wait() != 0:
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raise OSError()
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except OSError:
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logError(f'WARNING: Failed to compile "{lang}" localisation.')
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else:
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# remove file
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removeFile(d)
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# parse command line arguments
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for arg in sys.argv[1:]:
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if arg == '--remove':
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install = False
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elif arg == '--files-only':
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files_only = True
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else:
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for opt in options.keys():
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key = f'--{opt}='
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if arg.startswith(key):
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options[opt] = arg[len(key):]
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break
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else:
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logError(f'Unknown option "{arg}".')
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sys.exit(1)
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# expand variables
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for s in 'sysconfdir', 'examplesdir', 'mandir':
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for k in 'prefix', 'sysconfdir':
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if s != k:
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options[s] = options[s].replace(f'${{{k}}}', options[k])
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# validate inputs
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if options['destdir'] == '':
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options['destdir'] = '/'
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for opt in 'prefix', 'sysconfdir', 'examplesdir', 'mandir':
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p = options[opt]
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c = components(p)
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if os.pardir in c or os.curdir in c:
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logError(f'Bad value for option "{opt}".')
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sys.exit(1)
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c.insert(0, '')
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c.append('')
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options[opt] = os.sep.join(c)
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destdir = options['destdir']
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prefix = options['prefix']
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sysconfdir = options['sysconfdir']
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examplesdir = options['examplesdir']
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mandir = options['mandir']
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pythonbin = options['pythonbin']
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# tell the user what we are about to do
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if install:
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stage = 'install'
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else:
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stage = 'removal'
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print(f'''Performing {stage} with:
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destdir={destdir}
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prefix={prefix}
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sysconfdir={sysconfdir}
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examplesdir={examplesdir}
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mandir={mandir}
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pythonbin={pythonbin}''')
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# install files to prefix
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processFiles(install, os.path.join(destdir, prefix[1:]), 'src/usr/', {
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'bin/diffuse': [ (b"'../../etc/diffuserc'", repr(relpath(os.path.join(prefix, 'bin'), os.path.join(sysconfdir, 'diffuserc'))).encode()),
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(b'/usr/bin/env python', pythonbin.encode()) ],
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'share/applications/diffuse.desktop': None,
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'share/diffuse/syntax/*.syntax': None,
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'share/gnome/help/diffuse/*/diffuse.xml': [ (b'/usr/', prefix.encode()), (b'/etc/', sysconfdir.encode()) ],
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'share/omf/diffuse/diffuse-*.omf': [ (b'/usr/', prefix.encode()) ],
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'share/icons/hicolor/*/apps/diffuse.png': None
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})
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# install manual
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processFiles(install, os.path.join(destdir, mandir[1:]), 'src/usr/share/man/', {
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'man1/diffuse.1': [ (b'/usr/', prefix.encode()), (b'/etc/', sysconfdir.encode()) ],
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'*/man1/diffuse.1': [ (b'/usr/', prefix.encode()), (b'/etc/', sysconfdir.encode()) ]
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})
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# install files to sysconfdir
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processFiles(install, os.path.join(destdir, examplesdir[1:]), 'src/etc/', { 'diffuserc': [ (b'/etc/', sysconfdir.encode()),
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(b'../usr', relpath(sysconfdir, prefix).encode()) ] })
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# install translations
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processTranslations(install, os.path.join(destdir, prefix[1:]))
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if not install:
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# remove directories we own
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dirs_to_remove = [
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'share/omf/diffuse',
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'share/gnome/help/diffuse/C',
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'share/gnome/help/diffuse/cs',
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'share/gnome/help/diffuse/it',
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'share/gnome/help/diffuse/ru',
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'share/gnome/help/diffuse',
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'share/diffuse/syntax',
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'share/diffuse'
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]
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for s in dirs_to_remove:
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d = os.path.join(destdir, os.path.join(prefix, s)[1:])
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try:
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os.rmdir(d)
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except OSError:
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logError(f'Error removing "{d}".')
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# do post install/removal tasks
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if not files_only:
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print(f'Performing post {stage} tasks.')
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cmds = [ [ 'update-desktop-database' ],
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[ 'gtk-update-icon-cache', os.path.join(destdir, os.path.join(prefix, 'share/icons/hicolor')[1:]) ] ]
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if install:
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cmds.append([ 'scrollkeeper-update', '-q', '-o', os.path.join(destdir, os.path.join(prefix, 'share/omf/diffuse')[1:]) ])
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else:
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cmds.append([ 'scrollkeeper-update', '-q' ])
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for c in cmds:
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for p in os.environ['PATH'].split(os.pathsep):
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if os.path.exists(os.path.join(p, c[0])):
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print(' '.join(c))
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try:
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if subprocess.Popen(c).wait() != 0:
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raise OSError()
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except OSError:
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logError(f'WARNING: Failed to update documentation database with {c[0]}.')
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break
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else:
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print(f'WARNING: {c[0]} is not installed')
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