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largefiles: access to specific fields only if largefiles enabled (issue4547)...
largefiles: access to specific fields only if largefiles enabled (issue4547) Even if largefiles extension is enabled in a repository, "repo" object, which isn't "largefiles.reposetup()"-ed, is passed to overridden functions in the cases below unexpectedly, because extensions are enabled for each repositories strictly. (1) clone without -U: (2) pull with -U: (3) pull with --rebase: combination of "enabled@src", "disabled@dst" and "not-required@src" cause this situation. largefiles requirement @src @dst @src result -------- -------- --------------- -------------------- enabled disabled not-required aborted unexpectedly required requirement error (intentional) -------- -------- --------------- -------------------- enabled enabled * success -------- -------- --------------- -------------------- disabled enabled * success (only for "pull") -------- -------- --------------- -------------------- disabled disabled not-required success required requirement error (intentional) -------- -------- --------------- -------------------- (4) update/revert with a subrepo disabling largefiles In these cases, overridden functions cause accessing to largefiles specific fields of not "largefiles.reposetup()"-ed "repo" object, and execution is aborted. - (1), (2), (4) cause accessing to "_lfstatuswriters" in "getstatuswriter()" invoked via "updatelfiles()" - (3) causes accessing to "_lfcommithooks" in "overriderebase()" For safe accessing to these fields, this patch examines whether passed "repo" object is "largefiles.reposetup()"-ed or not before accessing to them. This patch chooses examining existence of newly introduced "_largefilesenabled" instead of "_lfcommithooks" and "_lfstatuswriters" directly, because the former is better name for the generic "largefiles is enabled in this repo" mark than the latter. In the future, all other overridden functions should avoid largefiles specific processing for efficiency, and "_largefilesenabled" is better also for such purpose. BTW, "lfstatus" can't be used for such purpose, because some code paths set it forcibly regardless of existence of it in specified "repo" object.
Pierre-Yves David - - Load All Authors

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r24158:d414c28d stable
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test-merge7.t
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initial
$ hg init test-a
$ cd test-a
$ cat >test.txt <<"EOF"
> 1
> 2
> 3
> EOF
$ hg add test.txt
$ hg commit -m "Initial"
clone
$ cd ..
$ hg clone test-a test-b
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
change test-a
$ cd test-a
$ cat >test.txt <<"EOF"
> one
> two
> three
> EOF
$ hg commit -m "Numbers as words"
change test-b
$ cd ../test-b
$ cat >test.txt <<"EOF"
> 1
> 2.5
> 3
> EOF
$ hg commit -m "2 -> 2.5"
now pull and merge from test-a
$ hg pull ../test-a
pulling from ../test-a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg merge
merging test.txt
warning: conflicts during merge.
merging test.txt incomplete! (edit conflicts, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
[1]
resolve conflict
$ cat >test.txt <<"EOF"
> one
> two-point-five
> three
> EOF
$ rm -f *.orig
$ hg resolve -m test.txt
(no more unresolved files)
$ hg commit -m "Merge 1"
change test-a again
$ cd ../test-a
$ cat >test.txt <<"EOF"
> one
> two-point-one
> three
> EOF
$ hg commit -m "two -> two-point-one"
pull and merge from test-a again
$ cd ../test-b
$ hg pull ../test-a
pulling from ../test-a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg merge --debug
searching for copies back to rev 1
resolving manifests
branchmerge: True, force: False, partial: False
ancestor: 96b70246a118, local: 50c3a7e29886+, remote: 40d11a4173a8
preserving test.txt for resolve of test.txt
test.txt: versions differ -> m
updating: test.txt 1/1 files (100.00%)
picked tool 'internal:merge' for test.txt (binary False symlink False)
merging test.txt
my test.txt@50c3a7e29886+ other test.txt@40d11a4173a8 ancestor test.txt@96b70246a118
warning: conflicts during merge.
merging test.txt incomplete! (edit conflicts, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
[1]
$ cat test.txt
one
<<<<<<< local: 50c3a7e29886 - test: Merge 1
two-point-five
=======
two-point-one
>>>>>>> other: 40d11a4173a8 - test: two -> two-point-one
three
$ hg debugindex test.txt
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 7 ..... 0 01365c4cca56 000000000000 000000000000 (re)
1 7 9 ..... 1 7b013192566a 01365c4cca56 000000000000 (re)
2 16 15 ..... 2 8fe46a3eb557 01365c4cca56 000000000000 (re)
3 31 2. ..... 3 fc3148072371 7b013192566a 8fe46a3eb557 (re)
4 5. 25 ..... 4 d40249267ae3 8fe46a3eb557 000000000000 (re)
$ hg log
changeset: 4:40d11a4173a8
tag: tip
parent: 2:96b70246a118
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: two -> two-point-one
changeset: 3:50c3a7e29886
parent: 1:d1e159716d41
parent: 2:96b70246a118
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Merge 1
changeset: 2:96b70246a118
parent: 0:b1832b9d912a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Numbers as words
changeset: 1:d1e159716d41
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: 2 -> 2.5
changeset: 0:b1832b9d912a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Initial
$ cd ..