Mercurial > hg
view mercurial/minifileset.py @ 46335:25be21ec6c65
share: rework config options to be much clearer and easier
Recently I implemented various boolean configs which control how to behave when
there is a share-safe mismatch between source and share repository. Mismatch
means that source supports share-safe where as share does not or vice versa.
However, while discussion and documentation we realized that it's too
complicated and there are some combinations of values which makes no sense.
We decided to introduce a config option with 4 possible values which
makes controlling and understanding things easier.
The config option `share.safe-mismatch.source-{not-}safe` can have
following 4 values:
* abort (default): error out if there is mismatch
* allow: allow to work with respecting share source configuration
* {up|down}grade-abort: try to {up|down}grade, if it fails, abort
* {up|down}grade-allow: try to {up|down}grade, if it fails, continue in allow
mode
I am not sure if I can explain 3 config options which I deleted right now in
just 5 lines which is a sign of how complex they became.
No test changes demonstrate that functionality is same, only names have changed.
Differential Revision: https://phab.mercurial-scm.org/D9785
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 18 Jan 2021 21:37:20 +0530 |
parents | 687b865b95ad |
children | 6000f5b25c9b |
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# minifileset.py - a simple language to select files # # Copyright 2017 Facebook, Inc. # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import from .i18n import _ from . import ( error, fileset, filesetlang, pycompat, ) def _sizep(x): # i18n: "size" is a keyword expr = filesetlang.getstring(x, _(b"size requires an expression")) return fileset.sizematcher(expr) def _compile(tree): if not tree: raise error.ParseError(_(b"missing argument")) op = tree[0] if op == b'withstatus': return _compile(tree[1]) elif op in {b'symbol', b'string', b'kindpat'}: name = filesetlang.getpattern( tree, {b'path'}, _(b'invalid file pattern') ) if name.startswith(b'**'): # file extension test, ex. "**.tar.gz" ext = name[2:] for c in pycompat.bytestr(ext): if c in b'*{}[]?/\\': raise error.ParseError(_(b'reserved character: %s') % c) return lambda n, s: n.endswith(ext) elif name.startswith(b'path:'): # directory or full path test p = name[5:] # prefix pl = len(p) f = lambda n, s: n.startswith(p) and ( len(n) == pl or n[pl : pl + 1] == b'/' ) return f raise error.ParseError( _(b"unsupported file pattern: %s") % name, hint=_(b'paths must be prefixed with "path:"'), ) elif op in {b'or', b'patterns'}: funcs = [_compile(x) for x in tree[1:]] return lambda n, s: any(f(n, s) for f in funcs) elif op == b'and': func1 = _compile(tree[1]) func2 = _compile(tree[2]) return lambda n, s: func1(n, s) and func2(n, s) elif op == b'not': return lambda n, s: not _compile(tree[1])(n, s) elif op == b'func': symbols = { b'all': lambda n, s: True, b'none': lambda n, s: False, b'size': lambda n, s: _sizep(tree[2])(s), } name = filesetlang.getsymbol(tree[1]) if name in symbols: return symbols[name] raise error.UnknownIdentifier(name, symbols.keys()) elif op == b'minus': # equivalent to 'x and not y' func1 = _compile(tree[1]) func2 = _compile(tree[2]) return lambda n, s: func1(n, s) and not func2(n, s) elif op == b'list': raise error.ParseError( _(b"can't use a list in this context"), hint=_(b'see \'hg help "filesets.x or y"\''), ) raise error.ProgrammingError(b'illegal tree: %r' % (tree,)) def compile(text): """generate a function (path, size) -> bool from filter specification. "text" could contain the operators defined by the fileset language for common logic operations, and parenthesis for grouping. The supported path tests are '**.extname' for file extension test, and '"path:dir/subdir"' for prefix test. The ``size()`` predicate is borrowed from filesets to test file size. The predicates ``all()`` and ``none()`` are also supported. '(**.php & size(">10MB")) | **.zip | (path:bin & !path:bin/README)' for example, will catch all php files whose size is greater than 10 MB, all files whose name ends with ".zip", and all files under "bin" in the repo root except for "bin/README". """ tree = filesetlang.parse(text) tree = filesetlang.analyze(tree) tree = filesetlang.optimize(tree) return _compile(tree)