Summary:
Now that all our repos are treemanifest, let's enable the extension by
default in tests. Once we're certain no one needs it in production we'll also
make it the default in core Mercurial.
This diff includes a minor fix in treemanifest to be aware of always-enabled
extensions. It won't matter until we actually add treemanifest to the list of
default enabled extensions, but I caught this while testing things.
Reviewed By: ikostia
Differential Revision: D15030253
fbshipit-source-id: d8361f915928b6ad90665e6ed330c1df5c8d8d86
Summary:
p4fastimport has been replaced by p4seqimport months ago, on top of that previous assumptions have changed that might make p4fastimport not work (e.g. allowing import to connect to LFS).
This change cleans up a lot of unused code and a bunch of tests that no longer make sense.
Reviewed By: zhh95
Differential Revision: D8525286
fbshipit-source-id: 91d33e7530bf6df1e1ec92fae3acde0345230247
Summary:
Running `hg log --traceback --template '{file_copies}' -r XXXX` on a file with long history is slow for 2 reasons
- p4 fast importer preserves full history for deleted and re-added files
- p4 fast importer records the wrong parent of a file
This diff tries to fix these two issues.
In mercurial, if a file is added, deleted, and then added back, it should start a new file history when the file is added again.
For example,
commits commit1 commit2 commit3
actions add a.txt delete a.txt add a.txt
timeline ------------X------------X------------------------X------------
`hg debugindex a.txt` at commit3 shows a.txt as a new file without previous history
rev offset length delta linkrev nodeid p1 p2
0 0 3 -1 0 b789fdd96dc2 000000000000 000000000000
However, this is different in p4. `p4 filelog test.txt` gives you
//depot/Software/Apps/Main/Native/.castle/test.txt
... #3 change 523261 add on 2018/01/23 by zhihuih@devbig415 (text) 'test:add-again-same-file'
... #2 change 523254 delete on 2018/01/23 by zhihuih@devbig415 (text) 'testfile:delete'
... #1 change 523253 add on 2018/01/23 by zhihuih@devbig415 (text) 'testfile:add'
Currently, p4 fast importer preserves history the same way as p4, and this causes slowness (even timeout) in hg when it runs `hg log --traceback --template '{file_copies}' -r XXXX` on a revision that contains files with long history in p4 (mostly contributed by automation). To mitigate this, we want the p4 fast importer to behave the same way as hg, and starts a new history for a file that's added again.
Currently, p4 fast importer takes the tip of a filelog and treats that as the parent of the newly written entry diffusion/FBS/browse/master/fbcode/scm/hg/hgext/p4fastimport/importer.py;19ad9b05f50e3ff0265cdc7b4b45174dcf820343$468-469. This can be wrong when there are revisions from branches.
For example, if I edit file a in master in CL1, 2, 4, and I branch at CL3, and edit the file in branch in CL5, the current importer implementation will take filenode at CL4 as the parent of CL3
(CL1,2,3,4,5 corresponds to rev0,1,3,2,4)
{F120393661}
However, the correct behavior is to take filenode at CL2 as the parent of CL3
(CL1,2,3,4,5 corresponds to rev0,1,3,2,4)
{F120393662}
(This is also the example I use in `test-fb-hgext-p4fastimport-import-branch-filelogorder.t`, so if the description here looks confusing, please refer to the test)
Reviewed By: dsp
Differential Revision: D6962019
fbshipit-source-id: 24de76ae009e0d6f976d247087fe4702c99e0f82
Summary:
This commit moves most of the stuff in hgext3rd and related tests to
hg-crew/hgext and hg-crew/test respectively.
The things that are not moved are the ones which require some more complex
imports.
Depends on D6675309
Test Plan: - tests are failing at this commit, fixes are in the following commits
Reviewers: #sourcecontrol
Differential Revision: https://phabricator.intern.facebook.com/D6675329
