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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.
Kyle Lippincott - - Load All Authors

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r23547:21446f4d default
r24158:d414c28d stable
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test-debugcommands.t
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/ tests / test-debugcommands.t
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$ hg init debugrevlog
$ cd debugrevlog
$ echo a > a
$ hg ci -Am adda
adding a
$ hg debugrevlog -m
format : 1
flags : inline
revisions : 1
merges : 0 ( 0.00%)
normal : 1 (100.00%)
revisions : 1
full : 1 (100.00%)
deltas : 0 ( 0.00%)
revision size : 44
full : 44 (100.00%)
deltas : 0 ( 0.00%)
avg chain length : 0
compression ratio : 0
uncompressed data size (min/max/avg) : 43 / 43 / 43
full revision size (min/max/avg) : 44 / 44 / 44
delta size (min/max/avg) : 0 / 0 / 0
Test debugindex, with and without the --debug flag
$ hg debugindex a
rev offset length .... linkrev nodeid p1 p2 (re)
0 0 3 .... 0 b789fdd96dc2 000000000000 000000000000 (re)
$ hg --debug debugindex a
rev offset length .... linkrev nodeid p1 p2 (re)
0 0 3 .... 0 b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 (re)
$ hg debugindex -f 1 a
rev flag offset length size .... link p1 p2 nodeid (re)
0 0000 0 3 2 .... 0 -1 -1 b789fdd96dc2 (re)
$ hg --debug debugindex -f 1 a
rev flag offset length size .... link p1 p2 nodeid (re)
0 0000 0 3 2 .... 0 -1 -1 b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 (re)
Test max chain len
$ cat >> $HGRCPATH << EOF
> [format]
> maxchainlen=4
> EOF
$ printf "This test checks if maxchainlen config value is respected also it can serve as basic test for debugrevlog -d <file>.\n" >> a
$ hg ci -m a
$ printf "b\n" >> a
$ hg ci -m a
$ printf "c\n" >> a
$ hg ci -m a
$ printf "d\n" >> a
$ hg ci -m a
$ printf "e\n" >> a
$ hg ci -m a
$ printf "f\n" >> a
$ hg ci -m a
$ printf 'g\n' >> a
$ hg ci -m a
$ printf 'h\n' >> a
$ hg ci -m a
$ hg debugrevlog -d a
# rev p1rev p2rev start end deltastart base p1 p2 rawsize totalsize compression heads chainlen
0 -1 -1 0 ??? 0 0 0 0 ??? ???? ? 1 0 (glob)
1 0 -1 ??? ??? 0 0 0 0 ??? ???? ? 1 1 (glob)
2 1 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 2 (glob)
3 2 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 3 (glob)
4 3 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 4 (glob)
5 4 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 0 (glob)
6 5 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 1 (glob)
7 6 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 2 (glob)
8 7 -1 ??? ??? ??? ??? ??? 0 ??? ???? ? 1 3 (glob)
$ cd ..
Test internal debugstacktrace command
$ cat > debugstacktrace.py << EOF
> from mercurial.util import debugstacktrace, dst, sys
> def f():
> dst('hello world')
> def g():
> f()
> debugstacktrace(skip=-5, f=sys.stdout)
> g()
> EOF
$ python debugstacktrace.py
hello world at:
debugstacktrace.py:7 in * (glob)
debugstacktrace.py:5 in g
debugstacktrace.py:3 in f
stacktrace at:
debugstacktrace.py:7 *in * (glob)
debugstacktrace.py:6 *in g (glob)
*/util.py:* in debugstacktrace (glob)