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
This runs with TZ="GMT"
$ hg init
$ echo "test-parse-date" > a
$ hg add a
$ hg ci -d "2006-02-01 13:00:30" -m "rev 0"
$ echo "hi!" >> a
$ hg ci -d "2006-02-01 13:00:30 -0500" -m "rev 1"
$ hg tag -d "2006-04-15 13:30" "Hi"
$ hg backout --merge -d "2006-04-15 13:30 +0200" -m "rev 3" 1
reverting a
created new head
changeset 3:107ce1ee2b43 backs out changeset 1:25a1420a55f8
merging with changeset 3:107ce1ee2b43
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -d "1150000000 14400" -m "rev 4 (merge)"
$ echo "fail" >> a
$ hg ci -d "should fail" -m "fail"
abort: invalid date: 'should fail'
[255]
$ hg ci -d "100000000000000000 1400" -m "fail"
abort: date exceeds 32 bits: 100000000000000000
[255]
$ hg ci -d "100000 1400000" -m "fail"
abort: impossible time zone offset: 1400000
[255]
Check with local timezone other than GMT and with DST
$ TZ="PST+8PDT"
$ export TZ
PST=UTC-8 / PDT=UTC-7
$ hg debugrebuildstate
$ echo "a" > a
$ hg ci -d "2006-07-15 13:30" -m "summer@UTC-7"
$ hg debugrebuildstate
$ echo "b" > a
$ hg ci -d "2006-07-15 13:30 +0500" -m "summer@UTC+5"
$ hg debugrebuildstate
$ echo "c" > a
$ hg ci -d "2006-01-15 13:30" -m "winter@UTC-8"
$ hg debugrebuildstate
$ echo "d" > a
$ hg ci -d "2006-01-15 13:30 +0500" -m "winter@UTC+5"
$ hg log --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
Test issue1014 (fractional timezones)
$ hg debugdate "1000000000 -16200" # 0430
internal: 1000000000 -16200
standard: Sun Sep 09 06:16:40 2001 +0430
$ hg debugdate "1000000000 -15300" # 0415
internal: 1000000000 -15300
standard: Sun Sep 09 06:01:40 2001 +0415
$ hg debugdate "1000000000 -14400" # 0400
internal: 1000000000 -14400
standard: Sun Sep 09 05:46:40 2001 +0400
$ hg debugdate "1000000000 0" # GMT
internal: 1000000000 0
standard: Sun Sep 09 01:46:40 2001 +0000
$ hg debugdate "1000000000 14400" # -0400
internal: 1000000000 14400
standard: Sat Sep 08 21:46:40 2001 -0400
$ hg debugdate "1000000000 15300" # -0415
internal: 1000000000 15300
standard: Sat Sep 08 21:31:40 2001 -0415
$ hg debugdate "1000000000 16200" # -0430
internal: 1000000000 16200
standard: Sat Sep 08 21:16:40 2001 -0430
$ hg debugdate "Sat Sep 08 21:16:40 2001 +0430"
internal: 999967600 -16200
standard: Sat Sep 08 21:16:40 2001 +0430
$ hg debugdate "Sat Sep 08 21:16:40 2001 -0430"
internal: 1000000000 16200
standard: Sat Sep 08 21:16:40 2001 -0430
Test 12-hours times
$ hg debugdate "2006-02-01 1:00:30PM +0000"
internal: 1138798830 0
standard: Wed Feb 01 13:00:30 2006 +0000
$ hg debugdate "1:00:30PM" > /dev/null
Test date formats with '>' or '<' accompanied by space characters
$ hg log -d '>' --template '{date|date}\n'
abort: invalid day spec, use '>DATE'
[255]
$ hg log -d '<' hg log -d '>' --template '{date|date}\n'
abort: invalid day spec, use '>DATE'
[255]
$ hg log -d ' >' --template '{date|date}\n'
abort: invalid day spec, use '>DATE'
[255]
$ hg log -d ' <' --template '{date|date}\n'
abort: invalid day spec, use '<DATE'
[255]
$ hg log -d '> ' --template '{date|date}\n'
abort: invalid day spec, use '>DATE'
[255]
$ hg log -d '< ' --template '{date|date}\n'
abort: invalid day spec, use '<DATE'
[255]
$ hg log -d ' > ' --template '{date|date}\n'
abort: invalid day spec, use '>DATE'
[255]
$ hg log -d ' < ' --template '{date|date}\n'
abort: invalid day spec, use '<DATE'
[255]
$ hg log -d '>02/01' --template '{date|date}\n'
$ hg log -d '<02/01' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d ' >02/01' --template '{date|date}\n'
$ hg log -d ' <02/01' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d '> 02/01' --template '{date|date}\n'
$ hg log -d '< 02/01' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d ' > 02/01' --template '{date|date}\n'
$ hg log -d ' < 02/01' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d '>02/01 ' --template '{date|date}\n'
$ hg log -d '<02/01 ' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d ' >02/01 ' --template '{date|date}\n'
$ hg log -d ' <02/01 ' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d '> 02/01 ' --template '{date|date}\n'
$ hg log -d '< 02/01 ' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000
$ hg log -d ' > 02/01 ' --template '{date|date}\n'
$ hg log -d ' < 02/01 ' --template '{date|date}\n'
Sun Jan 15 13:30:00 2006 +0500
Sun Jan 15 13:30:00 2006 -0800
Sat Jul 15 13:30:00 2006 +0500
Sat Jul 15 13:30:00 2006 -0700
Sun Jun 11 00:26:40 2006 -0400
Sat Apr 15 13:30:00 2006 +0200
Sat Apr 15 13:30:00 2006 +0000
Wed Feb 01 13:00:30 2006 -0500
Wed Feb 01 13:00:30 2006 +0000