commit: improve the files field of changelog for merges
Currently, the files list of merge commits repeats all the deletions
(either actual deletions, or files that got renamed) that happened
between base and p2 of the merge. If p2 is the main branch, the list
can easily be much bigger than the change being merged.
This results in various problems worth improving:
- changelog is bigger than necessary
- `hg log directory` lists many unrelated merge commits, and `hg log
-v -r commit` frequently fills multiple screens worth of files
- it possibly slows down adjustlinkrev, by forcing it to read more
manifests, and that function can certainly be a bottleneck
- the server side of pulls can waste a lot of time simply opening the
filelogs for pointless files (the constant factors for opening even
a tiny filelog is apparently pretty bad)
So stop listing such files as described in the code. Impacted merge
commits and their descendants get a different hash than they would
have without this. This doesn't seem problematic, except for
convert. The previous commit helped with that in the hg->hg case (but
if you do svn->hg twice from scratch, hashes can still change).
The rest of the description is numbers. I don't have much to report,
because recreating the files list of existing repositories is not
easy:
- debugupgradeformat and bundle/unbundle don't recreate the list
- export/import tends to choke quickly applying patches or on
description that contain diffs,
- merge commits from the convert extension don't have the right files
list for reasons orthogonal to the current commit
- replaying the merge with hg update/hg merge/hg revert --all/hg
commit can end up failing in hg revert
- I wasn't sure that using debugsetparents + debugrebuilddirstate
would really build the right thing
I measured commit time before and after this change, in a case with no
files filtered out, several files filtered out (no difference) and 5k
files filtered out (+1% time).
Recreating the 100 more recent merges in a private repo, the
concatenated uncompressed files lists goes from 1.12MB to
0.52MB. Excluding 3 merges that are not representative, then the size
goes from 570k to 15k.
I converted part of mozilla-central, and observed file list shrinking
quite a bit too, starting at the very first merge, 733641d9feaf, going
from 550 files to 10 files (although they have relatively few merges,
so they probably wouldn't care).
Differential Revision: https://phab.mercurial-scm.org/D6613
$ remove() {
> hg rm $@
> echo "exit code: $?"
> hg st
> # do not use ls -R, which recurses in .hg subdirs on Mac OS X 10.5
> find . -name .hg -prune -o -type f -print | sort
> hg up -C
> }
$ cat >> $HGRCPATH <<EOF
> [progress]
> disable=False
> assume-tty = 1
> delay = 0
> # set changedelay really large so we don't see nested topics
> changedelay = 30000
> format = topic bar number
> refresh = 0
> width = 60
> EOF
$ hg init a
$ cd a
$ echo a > foo
file not managed
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file is untracked
exit code: 1
? foo
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg add foo
$ hg commit -m1
the table cases
00 state added, options none
$ echo b > bar
$ hg add bar
$ remove bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing bar: file has been marked for add (use 'hg forget' to undo add)
exit code: 1
A bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
01 state clean, options none
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
02 state modified, options none
$ echo b >> foo
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file is modified (use -f to force removal)
exit code: 1
M foo
? bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
03 state missing, options none
$ rm foo
$ remove foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
10 state added, options -f
$ echo b > bar
$ hg add bar
$ remove -f bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
11 state clean, options -f
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
12 state modified, options -f
$ echo b >> foo
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
13 state missing, options -f
$ rm foo
$ remove -f foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
20 state added, options -A
$ echo b > bar
$ hg add bar
$ remove -A bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing bar: file still exists
exit code: 1
A bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
21 state clean, options -Av
$ remove -Av foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file still exists
exit code: 1
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
22 state modified, options -Av
$ echo b >> foo
$ remove -Av foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing foo: file still exists
exit code: 1
M foo
? bar
./bar
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
23 state missing, options -A
$ rm foo
$ remove -A foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
? bar
./bar
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
30 state added, options -Af
$ echo b > bar
$ hg add bar
$ remove -Af bar
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
31 state clean, options -Af
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
32 state modified, options -Af
$ echo b >> foo
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
33 state missing, options -Af
$ rm foo
$ remove -Af foo
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
exit code: 0
R foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
test some directory stuff
$ mkdir test
$ echo a > test/foo
$ echo b > test/bar
$ hg ci -Am2
adding test/bar
adding test/foo
dir, options none
$ rm test/bar
$ remove test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -f
$ rm test/bar
$ remove -f test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -Av
$ rm test/bar
$ remove -Av test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
not removing test/foo: file still exists
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -A <dir>
$ rm test/bar
$ remove -A test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
skipping [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
without any files/dirs, options -A
$ rm test/bar
$ remove -A
\r (no-eol) (esc)
skipping [=====================> ] 1/2\r (no-eol) (esc)
skipping [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
exit code: 1
R test/bar
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -Af
$ rm test/bar
$ remove -Af test
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [=====================> ] 1/2\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
removing test/bar
removing test/foo
exit code: 0
R test/bar
R test/foo
./foo
./test/foo
\r (no-eol) (esc)
updating [===========================================>] 2/2\r (no-eol) (esc)
\r (no-eol) (esc)
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
test remove dropping empty trees (issue1861)
$ mkdir -p issue1861/b/c
$ echo x > issue1861/x
$ echo y > issue1861/b/c/y
$ hg ci -Am add
adding issue1861/b/c/y
adding issue1861/x
$ hg rm issue1861/b
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing issue1861/b/c/y
$ hg ci -m remove
$ ls issue1861
x
test that commit does not crash if the user removes a newly added file
$ touch f1
$ hg add f1
$ rm f1
$ hg ci -A -mx
removing f1
nothing changed
[1]
handling of untracked directories and missing files
$ mkdir d1
$ echo a > d1/a
$ hg rm --after d1
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
not removing d1: no tracked files
[1]
$ hg add d1/a
$ rm d1/a
$ hg rm --after d1
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing d1/a
$ hg rm --after nosuch
nosuch: * (glob)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
[1]
test dry-run for remove
$ hg init testdryrun
$ cd testdryrun
$ echo a>a
$ hg ci -qAm1
$ hg remove a -nv
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
removing a
$ hg remove a -nv --color debug
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
\r (no-eol) (esc)
deleting [===========================================>] 1/1\r (no-eol) (esc)
\r (no-eol) (esc)
[ui.addremove.removed ui.status|removing a]
$ hg diff
$ cat >> .hg/hgrc <<EOF
> [extensions]
> largefiles=
> EOF
$ echo 'B as largefile' > B
$ hg add --large B
$ hg ci -m "B"
$ hg remove B -nv
removing B
$ hg st
$ cd ..