view tests/test-inotify-issue1371.t @ 14927:2aa3e07b2f07

posix, windows: introduce cachestat

This class contains a stat result, and possibly other file info to reliably
determine between two points in time whether a file has changed.

Uniquely identifying a file gives us that reliability because we either
atomic rename or append. So one of two will happen: the file 'id' will change,
or the size of the file will change.

posix implements it simply by calling os.stat() and checking if the result
has st_ino.

For now on Windows we always assume the path is uncacheable. This can be
improved on NTFS due to file IDs: http://msdn.microsoft.com/en-us/library/aa363788(v=vs.85).aspx

So we need to find out if a file path is on an NTFS drive, for that we have:

- GetVolumeInformation, which unfortunately only works with a root path (but is available on XP)
- GetVolumeInformationByHandleW, works on a full file path but requires Vista or higher

  $ "$TESTDIR/hghave" inotify || exit 80
  $ hg init 
  $ touch a b c d e f
  $ echo "[extensions]" >> $HGRCPATH
  $ echo "inotify=" >> $HGRCPATH

inserve

  $ hg inserve -d --pid-file=hg.pid 2>&1
  $ cat hg.pid >> "$DAEMON_PIDS"
  $ hg ci -Am m
  adding a
  adding b
  adding c
  adding d
  adding e
  adding f
  adding hg.pid

let the daemon finish its stuff

  $ sleep 1

eed to test all file opperations

  $ hg rm a
  $ rm b
  $ echo c >> c
  $ touch g
  $ hg add g
  $ hg mv e h
  $ hg status
  M c
  A g
  A h
  R a
  R e
  ! b
  $ sleep 1

Are we able to kill the service? if not, the service died on some error

  $ kill `cat hg.pid`