comparison mercurial/changelog.py @ 19899:8c3dcbbfb5de

changelog: use "vfs.fstat()" instead of "util.fstat()"

Just invoking "os.fstat()" with "file.fileno()" doesn't require non
ANSI file API, because filename is not used for invocation of
"os.fstat()".

But "util.fstat()" should invoke "os.stat()" with "fp.name", if file
object doesn't have "fileno()" method for portability, and "fp.name"
may cause invocation of non ANSI file API.

So, this patch makes the constructor of appender class invoke
"util.fstat()" via vfs, to encapsulate filename handling.

19898:3f92e749d381

    return '\n'.join([l.rstrip() for l in desc.splitlines()]).strip('\n')

class appender(object):
    '''the changelog index must be updated last on disk, so we use this class
    to delay writes to it'''
    def __init__(self, fp, buf):
        self.data = buf
        self.fp = fp
        self.offset = fp.tell()
        self.size = util.fstat(fp).st_size

    def end(self):
        return self.size + len("".join(self.data))
    def tell(self):
        return self.offset

        if name != target:
            return opener(name, mode)
        if divert:
            return opener(name + ".a", mode.replace('a', 'w'))
        # otherwise, divert to memory
        return appender(opener(name, mode), buf)
    return o

class changelog(revlog.revlog):
    def __init__(self, opener):
        revlog.revlog.__init__(self, opener, "00changelog.i")

19899:8c3dcbbfb5de

    return '\n'.join([l.rstrip() for l in desc.splitlines()]).strip('\n')

class appender(object):
    '''the changelog index must be updated last on disk, so we use this class
    to delay writes to it'''
    def __init__(self, vfs, name, mode, buf):
        self.data = buf
        fp = vfs(name, mode)
        self.fp = fp
        self.offset = fp.tell()
        self.size = vfs.fstat(fp).st_size

    def end(self):
        return self.size + len("".join(self.data))
    def tell(self):
        return self.offset

        if name != target:
            return opener(name, mode)
        if divert:
            return opener(name + ".a", mode.replace('a', 'w'))
        # otherwise, divert to memory
        return appender(opener, name, mode, buf)
    return o

class changelog(revlog.revlog):
    def __init__(self, opener):
        revlog.revlog.__init__(self, opener, "00changelog.i")