зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
2.1 KiB
Plaintext
74 строки
2.1 KiB
Plaintext
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# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
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# vim: set filetype=python:
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Templates implementing some generic checks.
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# Helper to display "checking" messages
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# @checking('for foo')
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# def foo():
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# return 'foo'
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# is equivalent to:
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# def foo():
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# sys.stdout.write('checking for foo... ')
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# ret = foo
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# sys.stdout.write(ret + '\n')
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# return ret
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# This can be combined with e.g. @depends:
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# @depends(some_option)
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# @checking('for something')
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# def check(value):
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# ...
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@template
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def checking(what):
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def decorator(func):
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@advanced
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def wrapped(*args, **kwargs):
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import sys
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print('checking', what, end='... ')
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sys.stdout.flush()
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ret = func(*args, **kwargs)
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print(ret)
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sys.stdout.flush()
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return ret
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return wrapped
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return decorator
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# Template to check for programs in $PATH.
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# check('PROG', ('a', 'b'))
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# will look for 'a' or 'b' in $PATH, and set_config PROG to the one
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# it can find. If PROG is already set from the environment or command line,
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# use that value instead.
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@template
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def check_prog(var, progs, allow_missing=False):
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option(env=var, nargs=1, help=var)
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not_found = 'not found'
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progs = list(progs)
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@depends(var)
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@checking('for %s' % var.lower())
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def check(value):
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if value:
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progs[:] = value
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for prog in progs:
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result = find_program(prog)
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if result:
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return result
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return not_found
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@depends(check)
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@advanced
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def postcheck(value):
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if value is not not_found:
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set_config(var, value)
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elif not allow_missing:
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from mozbuild.shellutil import quote
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error('Cannot find %s (tried: %s)'
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% (var.lower(), ', '.join(quote(p) for p in progs)))
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return check
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