copies: fix crash on in changeset-centric tracing from commit to itself
When we trace copies from a changeset to itself, the "work" queue ends
up empty and we hit the "assert False" after it.
It was only the last of the three added tests that failed before this
patch. That is because the other two cases have fast paths, so
_committedforwardcopies() is never reached.
Differential Revision: https://phab.mercurial-scm.org/D6675
A new repository uses zlib storage, which doesn't need a requirement
$ hg init default
$ cd default
$ cat .hg/requires
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
testonly-simplestore (reposimplestore !)
$ touch foo
$ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text to trigger compression'
$ hg debugrevlog -c | grep 0x78
0x78 (x) : 1 (100.00%)
0x78 (x) : 110 (100.00%)
$ cd ..
Unknown compression engine to format.compression aborts
$ hg --config format.revlog-compression=unknown init unknown
abort: compression engine unknown defined by format.revlog-compression not available
(run "hg debuginstall" to list available compression engines)
[255]
A requirement specifying an unknown compression engine results in bail
$ hg init unknownrequirement
$ cd unknownrequirement
$ echo exp-compression-unknown >> .hg/requires
$ hg log
abort: repository requires features unknown to this Mercurial: exp-compression-unknown!
(see https://mercurial-scm.org/wiki/MissingRequirement for more information)
[255]
$ cd ..
#if zstd
$ hg --config format.revlog-compression=zstd init zstd
$ cd zstd
$ cat .hg/requires
dotencode
fncache
generaldelta
revlog-compression-zstd
revlogv1
sparserevlog
store
testonly-simplestore (reposimplestore !)
$ touch foo
$ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text'
$ hg debugrevlog -c | grep 0x28
0x28 : 1 (100.00%)
0x28 : 98 (100.00%)
$ cd ..
Specifying a new format.compression on an existing repo won't introduce data
with that engine or a requirement
$ cd default
$ touch bar
$ hg --config format.revlog-compression=zstd -q commit -A -m 'add bar with a lot of repeated repeated repeated text'
$ cat .hg/requires
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
testonly-simplestore (reposimplestore !)
$ hg debugrevlog -c | grep 0x78
0x78 (x) : 2 (100.00%)
0x78 (x) : 199 (100.00%)
#endif
checking zlib options
=====================
$ hg init zlib-level-default
$ hg init zlib-level-1
$ cat << EOF >> zlib-level-1/.hg/hgrc
> [storage]
> revlog.zlib.level=1
> EOF
$ hg init zlib-level-9
$ cat << EOF >> zlib-level-9/.hg/hgrc
> [storage]
> revlog.zlib.level=9
> EOF
$ commitone() {
> repo=$1
> cp $RUNTESTDIR/bundles/issue4438-r1.hg $repo/a
> hg -R $repo add $repo/a
> hg -R $repo commit -m some-commit
> }
$ for repo in zlib-level-default zlib-level-1 zlib-level-9; do
> commitone $repo
> done
$ $RUNTESTDIR/f -s */.hg/store/data/*
default/.hg/store/data/foo.i: size=64 (pure !)
zlib-level-1/.hg/store/data/a.i: size=4146
zlib-level-9/.hg/store/data/a.i: size=4138
zlib-level-default/.hg/store/data/a.i: size=4138
Test error cases
$ hg init zlib-level-invalid
$ cat << EOF >> zlib-level-invalid/.hg/hgrc
> [storage]
> revlog.zlib.level=foobar
> EOF
$ commitone zlib-level-invalid
abort: storage.revlog.zlib.level is not a valid integer ('foobar')
abort: storage.revlog.zlib.level is not a valid integer ('foobar')
[255]
$ hg init zlib-level-out-of-range
$ cat << EOF >> zlib-level-out-of-range/.hg/hgrc
> [storage]
> revlog.zlib.level=42
> EOF
$ commitone zlib-level-out-of-range
abort: invalid value for `storage.revlog.zlib.level` config: 42
abort: invalid value for `storage.revlog.zlib.level` config: 42
[255]
#if zstd
checking zstd options
=====================
$ hg init zstd-level-default --config format.revlog-compression=zstd
$ hg init zstd-level-1 --config format.revlog-compression=zstd
$ cat << EOF >> zstd-level-1/.hg/hgrc
> [storage]
> revlog.zstd.level=1
> EOF
$ hg init zstd-level-22 --config format.revlog-compression=zstd
$ cat << EOF >> zstd-level-22/.hg/hgrc
> [storage]
> revlog.zstd.level=22
> EOF
$ commitone() {
> repo=$1
> cp $RUNTESTDIR/bundles/issue4438-r1.hg $repo/a
> hg -R $repo add $repo/a
> hg -R $repo commit -m some-commit
> }
$ for repo in zstd-level-default zstd-level-1 zstd-level-22; do
> commitone $repo
> done
$ $RUNTESTDIR/f -s zstd-*/.hg/store/data/*
zstd-level-1/.hg/store/data/a.i: size=4097
zstd-level-22/.hg/store/data/a.i: size=4091
zstd-level-default/.hg/store/data/a.i: size=4094
Test error cases
$ hg init zstd-level-invalid --config format.revlog-compression=zstd
$ cat << EOF >> zstd-level-invalid/.hg/hgrc
> [storage]
> revlog.zstd.level=foobar
> EOF
$ commitone zstd-level-invalid
abort: storage.revlog.zstd.level is not a valid integer ('foobar')
abort: storage.revlog.zstd.level is not a valid integer ('foobar')
[255]
$ hg init zstd-level-out-of-range --config format.revlog-compression=zstd
$ cat << EOF >> zstd-level-out-of-range/.hg/hgrc
> [storage]
> revlog.zstd.level=42
> EOF
$ commitone zstd-level-out-of-range
abort: invalid value for `storage.revlog.zstd.level` config: 42
abort: invalid value for `storage.revlog.zstd.level` config: 42
[255]
#endif