comparison mercurial/patch.py @ 29726:160c829dd5d0

patch: use `iter(callable, sentinel)` instead of while True

This is functionally equivalent, but is a little more concise.

29725:cbeb2cb578b1

            del self.buf[0]
            return l
        return self.fp.readline()

    def __iter__(self):
        while True:
            l = self.readline()
            if not l:
                break
            yield l

class abstractbackend(object):
    def __init__(self, ui):
        self.ui = ui

    lr = linereader(fp)

    def scanwhile(first, p):
        """scan lr while predicate holds"""
        lines = [first]
        while True:
            line = lr.readline()
            if not line:
                break
            if p(line):
                lines.append(line)
            else:
                lr.push(line)
                break
        return lines

    while True:
        line = lr.readline()
        if not line:
            break
        if line.startswith('diff --git a/') or line.startswith('diff -r '):
            def notheader(line):
                s = line.split(None, 1)
                return not s or s[0] not in ('---', 'diff')
            header = scanwhile(line, notheader)

    # our states
    BFILE = 1
    context = None
    lr = linereader(fp)

    while True:
        x = lr.readline()
        if not x:
            break
        if state == BFILE and (
            (not context and x[0] == '@')
            or (context is not False and x.startswith('***************'))
            or x.startswith('GIT binary patch')):
            gp = None

29726:160c829dd5d0

            del self.buf[0]
            return l
        return self.fp.readline()

    def __iter__(self):
        return iter(self.readline, '')

class abstractbackend(object):
    def __init__(self, ui):
        self.ui = ui

    lr = linereader(fp)

    def scanwhile(first, p):
        """scan lr while predicate holds"""
        lines = [first]
        for line in iter(lr.readline, ''):
            if p(line):
                lines.append(line)
            else:
                lr.push(line)
                break
        return lines

    for line in iter(lr.readline, ''):
        if line.startswith('diff --git a/') or line.startswith('diff -r '):
            def notheader(line):
                s = line.split(None, 1)
                return not s or s[0] not in ('---', 'diff')
            header = scanwhile(line, notheader)

    # our states
    BFILE = 1
    context = None
    lr = linereader(fp)

    for x in iter(lr.readline, ''):
        if state == BFILE and (
            (not context and x[0] == '@')
            or (context is not False and x.startswith('***************'))
            or x.startswith('GIT binary patch')):
            gp = None