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repository: define manifest interfaces...
repository: define manifest interfaces The long march towards declaring interfaces for repository primitives continues. This commit essentially defines interfaces based on the following types: * manifest.manifestdict -> imanifestdict * manifest.manifestlog -> imanifestlog * manifest.memmanifestctx -> imanifestrevisionwritable * manifest.manifestctx -> imanifestrevisionstored * manifest.memtreemanifestctx -> imanifestrevisionwritable * manifest.treemanifestctx -> imanifestrevisionstored * util.dirs -> idirs The interfaces are thoroughly documented. Their documentation is now better than the documentation in manifest.py in many cases. With the exception of util.dirs, classes have been annotated with their interfaces. (I didn't feel like util.dirs needed the proper interface treatment.) Tests have been added demonstrating that all classes and instances conform to their interfaces. This work was much easier than filelogs. That's because Durham did an excellent job formalizing the manifest API a while back. There are still some minor kludges with the interfaces that should probably be addressed. But the primary goal with interface declarations is getting something established. Once we have an interface, we can modify it later easily enough. Differential Revision: https://phab.mercurial-scm.org/D3869
Boris Feld - - Load All Authors

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test-generaldelta.t
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#require no-reposimplestore
Check whether size of generaldelta revlog is not bigger than its
regular equivalent. Test would fail if generaldelta was naive
implementation of parentdelta: third manifest revision would be fully
inserted due to big distance from its paren revision (zero).
$ hg init repo --config format.generaldelta=no --config format.usegeneraldelta=no
$ cd repo
$ echo foo > foo
$ echo bar > bar
$ echo baz > baz
$ hg commit -q -Am boo
$ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes
$ for r in 1 2 3; do
> echo $r > foo
> hg commit -q -m $r
> hg up -q -r 0
> hg pull . -q -r $r -R ../gdrepo
> done
$ cd ..
>>> from __future__ import print_function
>>> import os
>>> regsize = os.stat("repo/.hg/store/00manifest.i").st_size
>>> gdsize = os.stat("gdrepo/.hg/store/00manifest.i").st_size
>>> if regsize < gdsize:
... print('generaldata increased size of manifest')
Verify rev reordering doesnt create invalid bundles (issue4462)
This requires a commit tree that when pulled will reorder manifest revs such
that the second manifest to create a file rev will be ordered before the first
manifest to create that file rev. We also need to do a partial pull to ensure
reordering happens. At the end we verify the linkrev points at the earliest
commit.
$ hg init server --config format.generaldelta=True
$ cd server
$ touch a
$ hg commit -Aqm a
$ echo x > x
$ echo y > y
$ hg commit -Aqm xy
$ hg up -q '.^'
$ echo x > x
$ echo z > z
$ hg commit -Aqm xz
$ hg up -q 1
$ echo b > b
$ hg commit -Aqm b
$ hg merge -q 2
$ hg commit -Aqm merge
$ echo c > c
$ hg commit -Aqm c
$ hg log -G -T '{rev} {shortest(node)} {desc}'
@ 5 ebb8 c
|
o 4 baf7 merge
|\
| o 3 a129 b
| |
o | 2 958c xz
| |
| o 1 f00c xy
|/
o 0 3903 a
$ cd ..
$ hg init client --config format.generaldelta=false --config format.usegeneraldelta=false
$ cd client
$ hg pull -q ../server -r 4
$ hg debugdeltachain x
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 3 2 3 1.50000 3 0 0.00000
$ cd ..
Test "usegeneraldelta" config
(repo are general delta, but incoming bundle are not re-deltafied)
delta coming from the server base delta server are not recompressed.
(also include the aggressive version for comparison)
$ hg clone repo --pull --config format.usegeneraldelta=1 usegd
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 6 changes to 3 files (+2 heads)
new changesets 0ea3fcf9d01d:bba78d330d9c
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone repo --pull --config format.generaldelta=1 full
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 6 changes to 3 files (+2 heads)
new changesets 0ea3fcf9d01d:bba78d330d9c
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R repo debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000
1 1 2 0 prev 57 135 161 1.19259 161 0 0.00000
2 1 3 1 prev 57 135 218 1.61481 218 0 0.00000
3 2 1 -1 base 104 135 104 0.77037 104 0 0.00000
$ hg -R usegd debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000
1 1 2 0 p1 57 135 161 1.19259 161 0 0.00000
2 1 3 1 prev 57 135 218 1.61481 218 0 0.00000
3 1 2 0 p1 57 135 161 1.19259 275 114 0.70807
$ hg -R full debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 104 135 104 0.77037 104 0 0.00000
1 1 2 0 p1 57 135 161 1.19259 161 0 0.00000
2 1 2 0 p1 57 135 161 1.19259 218 57 0.35404
3 1 2 0 p1 57 135 161 1.19259 275 114 0.70807
Test format.aggressivemergedeltas
$ hg init --config format.generaldelta=1 aggressive
$ cd aggressive
$ cat << EOF >> .hg/hgrc
> [format]
> generaldelta = 1
> EOF
$ touch a b c d e
$ hg commit -Aqm side1
$ hg up -q null
$ touch x y
$ hg commit -Aqm side2
- Verify non-aggressive merge uses p1 (commit 1) as delta parent
$ hg merge -q 0
$ hg commit -q -m merge
$ hg debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 59 215 59 0.27442 59 0 0.00000
1 1 2 0 prev 61 86 120 1.39535 120 0 0.00000
2 1 3 1 p1 65 301 185 0.61462 185 0 0.00000
$ hg strip -q -r . --config extensions.strip=
- Verify aggressive merge uses p2 (commit 0) as delta parent
$ hg up -q -C 1
$ hg merge -q 0
$ hg commit -q -m merge --config format.aggressivemergedeltas=True
$ hg debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 59 215 59 0.27442 59 0 0.00000
1 1 2 0 prev 61 86 120 1.39535 120 0 0.00000
2 1 2 0 p2 62 301 121 0.40199 182 61 0.50413
Test that strip bundle use bundle2
$ hg --config extensions.strip= strip .
0 files updated, 0 files merged, 5 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/aggressive/.hg/strip-backup/1c5d4dc9a8b8-6c68e60c-backup.hg
$ hg debugbundle .hg/strip-backup/*
Stream params: {Compression: BZ}
changegroup -- {nbchanges: 1, version: 02} (mandatory: True)
1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9
cache:rev-branch-cache -- {} (mandatory: False)
phase-heads -- {} (mandatory: True)
1c5d4dc9a8b8d6e1750966d343e94db665e7a1e9 draft
$ cd ..
test maxdeltachainspan
$ hg init source-repo
$ cd source-repo
$ hg debugbuilddag --new-file '.+5:brancha$.+11:branchb$.+30:branchc<brancha+2<branchb+2'
$ cd ..
$ hg -R source-repo debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 46 45 46 1.02222 46 0 0.00000
1 1 2 0 p1 57 90 103 1.14444 103 0 0.00000
2 1 3 1 p1 57 135 160 1.18519 160 0 0.00000
3 1 4 2 p1 57 180 217 1.20556 217 0 0.00000
4 1 5 3 p1 57 225 274 1.21778 274 0 0.00000
5 1 6 4 p1 57 270 331 1.22593 331 0 0.00000
6 2 1 -1 base 46 45 46 1.02222 46 0 0.00000
7 2 2 6 p1 57 90 103 1.14444 103 0 0.00000
8 2 3 7 p1 57 135 160 1.18519 160 0 0.00000
9 2 4 8 p1 57 180 217 1.20556 217 0 0.00000
10 2 5 9 p1 58 226 275 1.21681 275 0 0.00000
11 2 6 10 p1 58 272 333 1.22426 333 0 0.00000
12 2 7 11 p1 58 318 391 1.22956 391 0 0.00000
13 2 8 12 p1 58 364 449 1.23352 449 0 0.00000
14 2 9 13 p1 58 410 507 1.23659 507 0 0.00000
15 2 10 14 p1 58 456 565 1.23904 565 0 0.00000
16 2 11 15 p1 58 502 623 1.24104 623 0 0.00000
17 2 12 16 p1 58 548 681 1.24270 681 0 0.00000
18 3 1 -1 base 47 46 47 1.02174 47 0 0.00000
19 3 2 18 p1 58 92 105 1.14130 105 0 0.00000
20 3 3 19 p1 58 138 163 1.18116 163 0 0.00000
21 3 4 20 p1 58 184 221 1.20109 221 0 0.00000
22 3 5 21 p1 58 230 279 1.21304 279 0 0.00000
23 3 6 22 p1 58 276 337 1.22101 337 0 0.00000
24 3 7 23 p1 58 322 395 1.22671 395 0 0.00000
25 3 8 24 p1 58 368 453 1.23098 453 0 0.00000
26 3 9 25 p1 58 414 511 1.23430 511 0 0.00000
27 3 10 26 p1 58 460 569 1.23696 569 0 0.00000
28 3 11 27 p1 58 506 627 1.23913 627 0 0.00000
29 3 12 28 p1 58 552 685 1.24094 685 0 0.00000
30 3 13 29 p1 58 598 743 1.24247 743 0 0.00000
31 3 14 30 p1 58 644 801 1.24379 801 0 0.00000
32 3 15 31 p1 58 690 859 1.24493 859 0 0.00000
33 3 16 32 p1 58 736 917 1.24592 917 0 0.00000
34 3 17 33 p1 58 782 975 1.24680 975 0 0.00000
35 3 18 34 p1 58 828 1033 1.24758 1033 0 0.00000
36 3 19 35 p1 58 874 1091 1.24828 1091 0 0.00000
37 3 20 36 p1 58 920 1149 1.24891 1149 0 0.00000
38 3 21 37 p1 58 966 1207 1.24948 1207 0 0.00000
39 3 22 38 p1 58 1012 1265 1.25000 1265 0 0.00000
40 3 23 39 p1 58 1058 1323 1.25047 1323 0 0.00000
41 3 24 40 p1 58 1104 1381 1.25091 1381 0 0.00000
42 3 25 41 p1 58 1150 1439 1.25130 1439 0 0.00000
43 3 26 42 p1 58 1196 1497 1.25167 1497 0 0.00000
44 3 27 43 p1 58 1242 1555 1.25201 1555 0 0.00000
45 3 28 44 p1 58 1288 1613 1.25233 1613 0 0.00000
46 3 29 45 p1 58 1334 1671 1.25262 1671 0 0.00000
47 3 30 46 p1 58 1380 1729 1.25290 1729 0 0.00000
48 3 31 47 p1 58 1426 1787 1.25316 1787 0 0.00000
49 4 1 -1 base 197 316 197 0.62342 197 0 0.00000
50 4 2 49 p1 58 362 255 0.70442 255 0 0.00000
51 4 3 50 prev 356 594 611 1.02862 611 0 0.00000
52 4 4 51 p1 58 640 669 1.04531 669 0 0.00000
$ hg clone --pull source-repo --config experimental.maxdeltachainspan=2800 relax-chain --config format.generaldelta=yes
requesting all changes
adding changesets
adding manifests
adding file changes
added 53 changesets with 53 changes to 53 files (+2 heads)
new changesets 61246295ee1e:99cae3713489
updating to branch default
14 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R relax-chain debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 46 45 46 1.02222 46 0 0.00000
1 1 2 0 p1 57 90 103 1.14444 103 0 0.00000
2 1 3 1 p1 57 135 160 1.18519 160 0 0.00000
3 1 4 2 p1 57 180 217 1.20556 217 0 0.00000
4 1 5 3 p1 57 225 274 1.21778 274 0 0.00000
5 1 6 4 p1 57 270 331 1.22593 331 0 0.00000
6 2 1 -1 base 46 45 46 1.02222 46 0 0.00000
7 2 2 6 p1 57 90 103 1.14444 103 0 0.00000
8 2 3 7 p1 57 135 160 1.18519 160 0 0.00000
9 2 4 8 p1 57 180 217 1.20556 217 0 0.00000
10 2 5 9 p1 58 226 275 1.21681 275 0 0.00000
11 2 6 10 p1 58 272 333 1.22426 333 0 0.00000
12 2 7 11 p1 58 318 391 1.22956 391 0 0.00000
13 2 8 12 p1 58 364 449 1.23352 449 0 0.00000
14 2 9 13 p1 58 410 507 1.23659 507 0 0.00000
15 2 10 14 p1 58 456 565 1.23904 565 0 0.00000
16 2 11 15 p1 58 502 623 1.24104 623 0 0.00000
17 2 12 16 p1 58 548 681 1.24270 681 0 0.00000
18 3 1 -1 base 47 46 47 1.02174 47 0 0.00000
19 3 2 18 p1 58 92 105 1.14130 105 0 0.00000
20 3 3 19 p1 58 138 163 1.18116 163 0 0.00000
21 3 4 20 p1 58 184 221 1.20109 221 0 0.00000
22 3 5 21 p1 58 230 279 1.21304 279 0 0.00000
23 3 6 22 p1 58 276 337 1.22101 337 0 0.00000
24 3 7 23 p1 58 322 395 1.22671 395 0 0.00000
25 3 8 24 p1 58 368 453 1.23098 453 0 0.00000
26 3 9 25 p1 58 414 511 1.23430 511 0 0.00000
27 3 10 26 p1 58 460 569 1.23696 569 0 0.00000
28 3 11 27 p1 58 506 627 1.23913 627 0 0.00000
29 3 12 28 p1 58 552 685 1.24094 685 0 0.00000
30 3 13 29 p1 58 598 743 1.24247 743 0 0.00000
31 3 14 30 p1 58 644 801 1.24379 801 0 0.00000
32 3 15 31 p1 58 690 859 1.24493 859 0 0.00000
33 3 16 32 p1 58 736 917 1.24592 917 0 0.00000
34 3 17 33 p1 58 782 975 1.24680 975 0 0.00000
35 3 18 34 p1 58 828 1033 1.24758 1033 0 0.00000
36 3 19 35 p1 58 874 1091 1.24828 1091 0 0.00000
37 3 20 36 p1 58 920 1149 1.24891 1149 0 0.00000
38 3 21 37 p1 58 966 1207 1.24948 1207 0 0.00000
39 3 22 38 p1 58 1012 1265 1.25000 1265 0 0.00000
40 3 23 39 p1 58 1058 1323 1.25047 1323 0 0.00000
41 3 24 40 p1 58 1104 1381 1.25091 1381 0 0.00000
42 3 25 41 p1 58 1150 1439 1.25130 1439 0 0.00000
43 3 26 42 p1 58 1196 1497 1.25167 1497 0 0.00000
44 3 27 43 p1 58 1242 1555 1.25201 1555 0 0.00000
45 3 28 44 p1 58 1288 1613 1.25233 1613 0 0.00000
46 3 29 45 p1 58 1334 1671 1.25262 1671 0 0.00000
47 3 30 46 p1 58 1380 1729 1.25290 1729 0 0.00000
48 3 31 47 p1 58 1426 1787 1.25316 1787 0 0.00000
49 4 1 -1 base 197 316 197 0.62342 197 0 0.00000
50 4 2 49 p1 58 362 255 0.70442 255 0 0.00000
51 2 13 17 p1 58 594 739 1.24411 2781 2042 2.76319
52 5 1 -1 base 369 640 369 0.57656 369 0 0.00000
$ hg clone --pull source-repo --config experimental.maxdeltachainspan=0 noconst-chain --config format.generaldelta=yes
requesting all changes
adding changesets
adding manifests
adding file changes
added 53 changesets with 53 changes to 53 files (+2 heads)
new changesets 61246295ee1e:99cae3713489
updating to branch default
14 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R noconst-chain debugdeltachain -m
rev chain# chainlen prev delta size rawsize chainsize ratio lindist extradist extraratio
0 1 1 -1 base 46 45 46 1.02222 46 0 0.00000
1 1 2 0 p1 57 90 103 1.14444 103 0 0.00000
2 1 3 1 p1 57 135 160 1.18519 160 0 0.00000
3 1 4 2 p1 57 180 217 1.20556 217 0 0.00000
4 1 5 3 p1 57 225 274 1.21778 274 0 0.00000
5 1 6 4 p1 57 270 331 1.22593 331 0 0.00000
6 2 1 -1 base 46 45 46 1.02222 46 0 0.00000
7 2 2 6 p1 57 90 103 1.14444 103 0 0.00000
8 2 3 7 p1 57 135 160 1.18519 160 0 0.00000
9 2 4 8 p1 57 180 217 1.20556 217 0 0.00000
10 2 5 9 p1 58 226 275 1.21681 275 0 0.00000
11 2 6 10 p1 58 272 333 1.22426 333 0 0.00000
12 2 7 11 p1 58 318 391 1.22956 391 0 0.00000
13 2 8 12 p1 58 364 449 1.23352 449 0 0.00000
14 2 9 13 p1 58 410 507 1.23659 507 0 0.00000
15 2 10 14 p1 58 456 565 1.23904 565 0 0.00000
16 2 11 15 p1 58 502 623 1.24104 623 0 0.00000
17 2 12 16 p1 58 548 681 1.24270 681 0 0.00000
18 3 1 -1 base 47 46 47 1.02174 47 0 0.00000
19 3 2 18 p1 58 92 105 1.14130 105 0 0.00000
20 3 3 19 p1 58 138 163 1.18116 163 0 0.00000
21 3 4 20 p1 58 184 221 1.20109 221 0 0.00000
22 3 5 21 p1 58 230 279 1.21304 279 0 0.00000
23 3 6 22 p1 58 276 337 1.22101 337 0 0.00000
24 3 7 23 p1 58 322 395 1.22671 395 0 0.00000
25 3 8 24 p1 58 368 453 1.23098 453 0 0.00000
26 3 9 25 p1 58 414 511 1.23430 511 0 0.00000
27 3 10 26 p1 58 460 569 1.23696 569 0 0.00000
28 3 11 27 p1 58 506 627 1.23913 627 0 0.00000
29 3 12 28 p1 58 552 685 1.24094 685 0 0.00000
30 3 13 29 p1 58 598 743 1.24247 743 0 0.00000
31 3 14 30 p1 58 644 801 1.24379 801 0 0.00000
32 3 15 31 p1 58 690 859 1.24493 859 0 0.00000
33 3 16 32 p1 58 736 917 1.24592 917 0 0.00000
34 3 17 33 p1 58 782 975 1.24680 975 0 0.00000
35 3 18 34 p1 58 828 1033 1.24758 1033 0 0.00000
36 3 19 35 p1 58 874 1091 1.24828 1091 0 0.00000
37 3 20 36 p1 58 920 1149 1.24891 1149 0 0.00000
38 3 21 37 p1 58 966 1207 1.24948 1207 0 0.00000
39 3 22 38 p1 58 1012 1265 1.25000 1265 0 0.00000
40 3 23 39 p1 58 1058 1323 1.25047 1323 0 0.00000
41 3 24 40 p1 58 1104 1381 1.25091 1381 0 0.00000
42 3 25 41 p1 58 1150 1439 1.25130 1439 0 0.00000
43 3 26 42 p1 58 1196 1497 1.25167 1497 0 0.00000
44 3 27 43 p1 58 1242 1555 1.25201 1555 0 0.00000
45 3 28 44 p1 58 1288 1613 1.25233 1613 0 0.00000
46 3 29 45 p1 58 1334 1671 1.25262 1671 0 0.00000
47 3 30 46 p1 58 1380 1729 1.25290 1729 0 0.00000
48 3 31 47 p1 58 1426 1787 1.25316 1787 0 0.00000
49 1 7 5 p1 58 316 389 1.23101 2857 2468 6.34447
50 1 8 49 p1 58 362 447 1.23481 2915 2468 5.52125
51 2 13 17 p1 58 594 739 1.24411 2642 1903 2.57510
52 2 14 51 p1 58 640 797 1.24531 2700 1903 2.38770