rm scm/hg/hgext/p4fastimport/filetransaction.py

Summary:
We haven't used this for over a month, we're alive and well.
The raccoon asked me to remove this:
codecleanupracoon

Differential Revision: D7578280

fbshipit-source-id: ee522203095a213dc90d6146ce720b473ab5afe5

hgext/p4fastimport/filetransaction.py

@@ -1,76 +0,0 @@
-from mercurial.i18n import _
-from mercurial import util
-
-import base64
-import contextlib
-import fcntl
-
-class filetransaction(object):
-    def __init__(self, report, opener):
-        self.report = report
-        self.opener = opener
-        self.closed = False
-        self.journalfile = 'filejournals'
-        self.map = {}
-
-    @contextlib.contextmanager
-    def _lock(self, mode):
-        f = self.opener.open(self.journalfile, mode)
-        try:
-            fcntl.lockf(f, fcntl.LOCK_EX)
-            yield f
-        finally:
-            f.close()
-
-    def add(self, file, offset, data=None):
-        # we need to base64 this, so we avoid newlines
-        encdata = base64.b64encode(util.pickle.dumps(data))
-        with self._lock(mode='a') as f:
-            f.seek(0, 2)
-            writeoffset = f.tell()
-            f.write('%d\0%s\0%s\n' % (offset, file, encdata))
-            f.flush()
-            self.map[file] = (file, offset, data, writeoffset)
-
-    def close(self):
-        self.closed = True
-
-    def _read(self):
-        entries = []
-        with self._lock(mode='r+') as f:
-            for line in f.readlines():
-                e = line.split('\0', 2)
-                decdata = util.pickle.loads(base64.b64decode(e[2]))
-                entries.append((e[1].rstrip(), int(e[0]), decdata))
-        return entries
-
-    def abort(self):
-        self.report(_('transaction abort!\n'))
-        if self.opener.exists(self.journalfile):
-            for filename, offset, __ in self._read():
-                fp = self.opener(filename, 'a', checkambig=True)
-                fp.truncate(offset)
-                fp.close()
-            self.opener.unlink(self.journalfile)
-        self.report(_('rollback complete\n'))
-
-    def release(self):
-        if self.closed:
-            self.opener.unlink(self.journalfile)
-            return
-        self.abort()
-
-    def find(self, file):
-        if file in self.map:
-            filename, offset, data, __ = self.map[file]
-            return (filename, offset, data)
-        last = None
-        # TODO: T19177624 Fix this O(entries) behavior
-        for filename, offset, data in self._read():
-            if filename == file:
-                last = (filename, offset, data)
-        return last
-
-    def replace(self, file, offset, data=None):
-        self.map[file] = (file, offset, data)
-        self.add(file, offset, data)

tests/test-check-py3-compat.t

@@ -98,7 +98,6 @@
   hgext/myparent.py not using absolute_import
   hgext/nointerrupt.py not using absolute_import
   hgext/ownercheck.py not using absolute_import
-  hgext/p4fastimport/filetransaction.py not using absolute_import
   hgext/perftweaks.py not using absolute_import
   hgext/phabdiff.py not using absolute_import
   hgext/phabstatus.py not using absolute_import