comparison mercurial/match.py @ 38580:9f9ffe5f687c

match: compose 'set:' pattern as matcher

Baby step towards porting fileset to matcher composition.

We can't use the exactmatcher since it would provide a computed set as exact
paths. That's why we use the predicatematcher with fset.__contains__. This
will be cleaned up later.

The test change in test-glog.t means that the "set:copied()" pattern is no
longer be processed as a slow path. That's because the fset is empty. This
will also change in future patches.

38579:ec0cee4c1fff

    """
    for kind, pat, source in kindpats:
        if pat != '' or kind not in ['relpath', 'glob']:
            return False
    return True

def match(root, cwd, patterns=None, include=None, exclude=None, default='glob',
          exact=False, auditor=None, ctx=None, listsubrepos=False, warn=None,
          badfn=None, icasefs=False):
    """build an object to match a set of file patterns

    elif patterns:
        kindpats = normalize(patterns, default, root, cwd, auditor, warn)
        if _kindpatsalwaysmatch(kindpats):
            m = alwaysmatcher(root, cwd, badfn, relativeuipath=True)
        else:
            m = patternmatcher(root, cwd, kindpats, ctx=ctx,
                               listsubrepos=listsubrepos, badfn=badfn)
    else:
        # It's a little strange that no patterns means to match everything.
        # Consider changing this to match nothing (probably using nevermatcher).
        m = alwaysmatcher(root, cwd, badfn)

    if include:
        kindpats = normalize(include, 'glob', root, cwd, auditor, warn)
        im = includematcher(root, cwd, kindpats, ctx=ctx,
                            listsubrepos=listsubrepos, badfn=None)
        m = intersectmatchers(m, im)
    if exclude:
        kindpats = normalize(exclude, 'glob', root, cwd, auditor, warn)
        em = includematcher(root, cwd, kindpats, ctx=ctx,
                            listsubrepos=listsubrepos, badfn=None)
        m = differencematcher(m, em)
    return m

def exact(root, cwd, files, badfn=None):
    return exactmatcher(root, cwd, files, badfn=badfn)

def _buildmatch(ctx, kindpats, globsuffix, listsubrepos, root):
    '''Return regexp string and a matcher function for kindpats.
    globsuffix is appended to the regexp of globs.'''
    matchfuncs = []

    fset, kindpats = _expandsets(kindpats, ctx, listsubrepos)
    if fset:
        matchfuncs.append(fset.__contains__)

    subincludes, kindpats = _expandsubinclude(kindpats, root)
    if subincludes:
        submatchers = {}
        def matchsubinclude(f):
            for prefix, matcherargs in subincludes:

38580:9f9ffe5f687c

    """
    for kind, pat, source in kindpats:
        if pat != '' or kind not in ['relpath', 'glob']:
            return False
    return True

def _buildkindpatsmatcher(matchercls, root, cwd, kindpats, ctx=None,
                          listsubrepos=False, badfn=None):
    fset, kindpats = _expandsets(kindpats, ctx, listsubrepos)
    matchers = []
    if kindpats:
        m = matchercls(root, cwd, kindpats, ctx=ctx, listsubrepos=listsubrepos,
                       badfn=badfn)
        matchers.append(m)
    if fset:
        m = predicatematcher(root, cwd, fset.__contains__,
                             predrepr='fileset', badfn=badfn)
        matchers.append(m)
    if not matchers:
        return nevermatcher(root, cwd, badfn=badfn)
    if len(matchers) == 1:
        return matchers[0]
    return unionmatcher(matchers)

def match(root, cwd, patterns=None, include=None, exclude=None, default='glob',
          exact=False, auditor=None, ctx=None, listsubrepos=False, warn=None,
          badfn=None, icasefs=False):
    """build an object to match a set of file patterns

    elif patterns:
        kindpats = normalize(patterns, default, root, cwd, auditor, warn)
        if _kindpatsalwaysmatch(kindpats):
            m = alwaysmatcher(root, cwd, badfn, relativeuipath=True)
        else:
            m = _buildkindpatsmatcher(patternmatcher, root, cwd, kindpats,
                                      ctx=ctx, listsubrepos=listsubrepos,
                                      badfn=badfn)
    else:
        # It's a little strange that no patterns means to match everything.
        # Consider changing this to match nothing (probably using nevermatcher).
        m = alwaysmatcher(root, cwd, badfn)

    if include:
        kindpats = normalize(include, 'glob', root, cwd, auditor, warn)
        im = _buildkindpatsmatcher(includematcher, root, cwd, kindpats, ctx=ctx,
                                   listsubrepos=listsubrepos, badfn=None)
        m = intersectmatchers(m, im)
    if exclude:
        kindpats = normalize(exclude, 'glob', root, cwd, auditor, warn)
        em = _buildkindpatsmatcher(includematcher, root, cwd, kindpats, ctx=ctx,
                                   listsubrepos=listsubrepos, badfn=None)
        m = differencematcher(m, em)
    return m

def exact(root, cwd, files, badfn=None):
    return exactmatcher(root, cwd, files, badfn=badfn)

def _buildmatch(ctx, kindpats, globsuffix, listsubrepos, root):
    '''Return regexp string and a matcher function for kindpats.
    globsuffix is appended to the regexp of globs.'''
    matchfuncs = []

    subincludes, kindpats = _expandsubinclude(kindpats, root)
    if subincludes:
        submatchers = {}
        def matchsubinclude(f):
            for prefix, matcherargs in subincludes: