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File: mergeall-products/unzipped/test/macos-bad-bdr-symlinks-3.2.txt
[3.2] Symlinks burned to BDRs by macOS produce errors when they are
later read from the BDR, on both macOS and Windows. Report, skip,
and continue everywhere in Mergeall.
These BDR errors occur in both shells and Python, and are reported as
"Unknown error: 10000" on macOS, and either "Permission denied" or
"Access is denied" on Windows. On Windows this occurs whether running
as administrator or not, and in Command Prompt, Cygwin, and WSL Linux.
This likely reflects a defect in macOS's BDR burning software. macOS
tries to 'forge' symlinks on FAT32 and exFAT drives with a proprietary
encoding; this appears to write unreadable garbage when burning to BDRs.
Symlink burns on Windows and Linux are untested, but links are rare in
Windows (they require admin permission), and Linux generally refuses
to insert platform-specific magic (e.g., symlink-to-exFAT writes fail).
To accommodate the error, catch and report its exception in diffall.py
and continue; it will appear in the log and summary as "unreadable."
mergeall.py started skipping symlink read errors earlier in 3.2, and
cpall.py has always caught all exceptions and continued with the copy.
For implementation of the work-around, see ../diffall.comparetrees()
and ../mergeall.comparelinks().
=========================================================================================
MACOS CATALINA
=========================================================================================
--SHELL--
Last login: Wed Oct 27 14:52:12 on ttys010
~$ cd /Volumes/FULLOCT20/Websites/Author/Current
/Volumes/FULLOCT20/Websites/Author/Current$ ls -l
total 20
drwxr-xr-x 2 me staff 892 Jul 31 2020 Complete
ls: ./Html-inserts: Unknown error: 10000
lrwxr-xr-x@ 1 me staff 33 Jun 9 2017 Html-inserts
drwxr-xr-x 2 me staff 688 Jul 31 2020 Html-templates
ls: ./TOOLS.txt: Unknown error: 10000
lrwxr-xr-x@ 1 me staff 29 Jun 18 2017 TOOLS.txt
ls: ./_shrinkpix-info.txt: Unknown error: 10000
lrwxrwxrwx@ 1 me staff 48 Apr 24 2020 _shrinkpix-info.txt
/Volumes/FULLOCT20/Websites/Author/Current$
/Volumes/FULLOCT20/Websites/Author/Current$ cat _shrinkpix-info.txt
cat: _shrinkpix-info.txt: Unknown error: 10000
/Volumes/FULLOCT20/Websites/Author/Current$
/Volumes/FULLOCT20/Websites/Author/Current$ ls _shrinkpix-info.txt
_shrinkpix-info.txt
/Volumes/FULLOCT20/Websites/Author/Current$ ls -l _shrinkpix-info.txt
ls: _shrinkpix-info.txt: Unknown error: 10000
lrwxrwxrwx@ 1 me staff 48 Apr 24 2020 _shrinkpix-info.txt
/Volumes/FULLOCT20/Websites/Author/Current$ cd
~$
--PYTHON--
~$ cd /Volumes/FULLOCT20/Websites/Author/Current
/Volumes/FULLOCT20/Websites/Author/Current$ py3
Python 3.8.2 (v3.8.2:7b3ab5921f, Feb 24 2020, 17:52:18)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import os
>>> open('_shrinkpix-info.txt')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 10000] Unknown error: 10000: '_shrinkpix-info.txt'
>>>
>>> os.listdir()
['.DS_Store', '_shrinkpix-info.txt', 'Complete', 'Html-inserts', 'Html-templates', 'TOOLS.txt']
>>>
>>> for f in os.listdir():
... if not os.path.isdir(f):
... try:
... t =open(f)
... except:
... print('FAIL:', f)
... else:
... print(f)
...
.DS_Store
FAIL: _shrinkpix-info.txt
FAIL: Html-inserts
FAIL: TOOLS.txt
>>> ^D
/Volumes/FULLOCT20/Websites/Author/Current$ cd
~$
=========================================================================================
WINDOWS 10
=========================================================================================
--WSL LINUX UNUNTU--
me@DESKTOP-3PC51JV:~$ ls /mnt/
c/ d/ wsl/
me@DESKTOP-3PC51JV:~$ ls /mnt/d/Websites/Author/Current/
ls: cannot access '/mnt/d/Websites/Author/Current/_shrinkpix-info.txt': Permission denied
ls: cannot access '/mnt/d/Websites/Author/Current/Html-inserts': Permission denied
ls: cannot access '/mnt/d/Websites/Author/Current/TOOLS.txt': Permission denied
Complete Html-inserts Html-templates TOOLS.txt _shrinkpix-info.txt
me@DESKTOP-3PC51JV:~$
me@DESKTOP-3PC51JV:~$ ls -l /mnt/d/Websites/Author/Current/
ls: cannot access '/mnt/d/Websites/Author/Current/_shrinkpix-info.txt': Permission denied
ls: cannot access '/mnt/d/Websites/Author/Current/Html-inserts': Permission denied
ls: cannot access '/mnt/d/Websites/Author/Current/TOOLS.txt': Permission denied
total 0
drwxrwxrwx 1 me me 2048 Jul 31 2020 Complete
-????????? ? ? ? ? ? Html-inserts
drwxrwxrwx 1 me me 2048 Jul 31 2020 Html-templates
-????????? ? ? ? ? ? TOOLS.txt
-????????? ? ? ? ? ? _shrinkpix-info.txt
me@DESKTOP-3PC51JV:~$
--COMMAND PROMPT--
C:\Users\lutz>d:
d:\>cd Websites\Author\Current
dd:\Websites\Author\Current>dir
Volume in drive D is FULLOCT20
Volume Serial Number is F101-686E
Directory of d:\Websites\Author\Current
07/31/2020 04:24 PM <DIR> .
03/10/2020 05:00 PM <DIR> ..
03/10/2020 03:12 PM 10,244 .DS_Store
04/24/2020 05:45 PM 48 _shrinkpix-info.txt
07/31/2020 04:24 PM <DIR> Complete
06/09/2017 07:46 AM 33 Html-inserts
07/31/2020 04:24 PM <DIR> Html-templates
06/18/2017 06:36 AM 29 TOOLS.txt
4 File(s) 10,354 bytes
4 Dir(s) 0 bytes free
d:\Websites\Author\Current>dir _shrinkpix-info.txt
Volume in drive D is FULLOCT20
Volume Serial Number is F101-686E
Directory of d:\Websites\Author\Current
04/24/2020 05:45 PM 48 _shrinkpix-info.txt
1 File(s) 48 bytes
0 Dir(s) 0 bytes free
d:\Websites\Author\Current>type _shrinkpix-info.txt
Access is denied.
--COMMAND PROMPT PYTHON--
d:\Websites\Author\Current>py -3
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> open('_shrinkpix-info.txt')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
PermissionError: [Errno 13] Permission denied: '_shrinkpix-info.txt'
>>> open('_shrinkpix-info.txt', 'r')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
PermissionError: [Errno 13] Permission denied: '_shrinkpix-info.txt'
>>> import os
>>> os.listdir()
['.DS_Store', '_shrinkpix-info.txt', 'Complete', 'Html-inserts', 'Html-templates', 'TOOLS.txt']
>>>
>>> for f in os.listdir():
... t = open(f)
...
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
PermissionError: [Errno 13] Permission denied: '_shrinkpix-info.txt'
>>>
>>> for f in os.listdir():
... if not os.path.isdir(f):
... print(f)
... try:
... t = open(f)
... except:
... print(' FAIL')
...
.DS_Store
_shrinkpix-info.txt
FAIL
Html-inserts
FAIL
TOOLS.txt
FAIL
>>> ^Z
=========================================================================================
WINDOWS 10 RUN AS ADMIN (NO DIFF)
=========================================================================================
--COMMAND PROMPT--
C:\WINDOWS\system32>d:
D:\>cd Websites\Author\Current
D:\Websites\Author\Current>dir
Volume in drive D is FULLOCT20
Volume Serial Number is F101-686E
Directory of D:\Websites\Author\Current
07/31/2020 04:24 PM <DIR> .
03/10/2020 05:00 PM <DIR> ..
03/10/2020 03:12 PM 10,244 .DS_Store
04/24/2020 05:45 PM 48 _shrinkpix-info.txt
07/31/2020 04:24 PM <DIR> Complete
06/09/2017 07:46 AM 33 Html-inserts
07/31/2020 04:24 PM <DIR> Html-templates
06/18/2017 06:36 AM 29 TOOLS.txt
4 File(s) 10,354 bytes
4 Dir(s) 0 bytes free
D:\Websites\Author\Current>dir _shrinkpix-info.txt
Volume in drive D is FULLOCT20
Volume Serial Number is F101-686E
Directory of D:\Websites\Author\Current
04/24/2020 05:45 PM 48 _shrinkpix-info.txt
1 File(s) 48 bytes
0 Dir(s) 0 bytes free
D:\Websites\Author\Current>type _shrinkpix-info.txt
Access is denied.
--COMMAND PROMPT PYTHON--
D:\Websites\Author\Current>py -3
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit
(AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> open('_shrinkpix-info.txt')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
PermissionError: [Errno 13] Permission denied: '_shrinkpix-info.txt'
>>> import os
>>> os.path.isfile('_shrinkpix-info.txt')
True
>>> os.path.islink('_shrinkpix-info.txt')
False
>>> os.path.getmtime('_shrinkpix-info.txt')
1587775512.0
>>> os.path.getsize('_shrinkpix-info.txt')
48
>>> open('_shrinkpix-info.txt')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
PermissionError: [Errno 13] Permission denied: '_shrinkpix-info.txt'
>>>
=========================================================================================
CYGWIN ON WINDOWS - WITHOUT AND WITH ADMIN
=========================================================================================
--NOT ADMIN--
lutz@DESKTOP-3PC51JV ~
$ cd /cygdrive/d/Websites/Author/Current/
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ls
Complete Html-inserts Html-templates TOOLS.txt _shrinkpix-info.txt
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ls -l
total 10
drwxr-xr-x 1 lutz lutz 0 Jul 31 2020 Complete
-rw-r--r-- 1 lutz lutz 33 Jun 9 2017 Html-inserts
drwxr-xr-x 1 lutz lutz 0 Jul 31 2020 Html-templates
-rw-r--r-- 1 lutz lutz 29 Jun 18 2017 TOOLS.txt
-rw-r--r-- 1 lutz lutz 48 Apr 24 2020 _shrinkpix-info.txt
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ type _shrinkpix-info.txt
-bash: type: _shrinkpix-info.txt: not found
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ cat _shrinkpix-info.txt
cat: _shrinkpix-info.txt: Permission denied
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ls -l _shrinkpix-info.txt
-rw-r--r-- 1 lutz lutz 48 Apr 24 2020 _shrinkpix-info.txt
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
--ADMIN--
$ cd /cygdrive/d/Websites/Author/Current/
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ls
Complete Html-inserts Html-templates TOOLS.txt _shrinkpix-info.txt
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ls -l _shrinkpix-info.txt
-rw-r--r-- 1 lutz lutz 48 Apr 24 2020 _shrinkpix-info.txt
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ cat _shrinkpix-info.txt
cat: _shrinkpix-info.txt: Permission denied
lutz@DESKTOP-3PC51JV /cygdrive/d/Websites/Author/Current
$ ^C