dirstate: remove the python-side whitelist of allowed matchers
This whitelist is too permissive because it allows matchers that contain
disallowed ones deep inside, for example through `intersectionmatcher`.
It is also too restrictive because it doesn't pass through
some of the matchers we support, such as `patternmatcher`.
It's also unnecessary because unsupported matchers raise
`FallbackError` and we fall back anyway.
Making this change makes more of the tests use rust code path,
and therefore subtly change behavior. For example, rust status
in largefiles repos seems to have strange behavior.
This test cover a bug that no longer exist.
Define helpers.
$ hg_log () { hg log -G -T "{rev}:{node|short}"; }
$ commit () { echo "foo - ${2:-$1}" > $1; hg commit -Aqm "Edited $1"; }
$ strip() { hg --config extensions.strip= strip -q -r "$1" ; }
Setup hg repo.
$ hg init repo
$ cd repo
$ touch x; hg add x; hg commit -m "initial"
$ hg clone -q . ../clone
$ commit a
$ cd ../clone
$ commit b
$ hg pull -q ../repo
$ ls -1 .hg/cache/branch?*
.hg/cache/branch2-base
.hg/cache/branch2-served
$ cat .hg/cache/branch?-served
222ae9789a75703f9836e44de7db179cbfd420ee 2
a3498d6e39376d2456425dd8c692367bdbf00fa2 o default
222ae9789a75703f9836e44de7db179cbfd420ee o default
$ hg_log
o 2:222ae9789a75
|
| @ 1:a3498d6e3937
|/
o 0:7ab0a3bd758a
$ strip '1:'
After the strip the "served" cache is now identical to the "base" one, and the
older one have been actively deleted.
$ ls -1 .hg/cache/branch?*
.hg/cache/branch2-base
$ cat .hg/cache/branch?-base
7ab0a3bd758a58b9f79557ce708533e627776cce 0
7ab0a3bd758a58b9f79557ce708533e627776cce o default
We do a new commit and we get a new valid branchmap for the served version
$ commit c
$ ls -1 .hg/cache/branch?*
.hg/cache/branch2-base
.hg/cache/branch2-served
$ cat .hg/cache/branch?-served
a1602b357cfca067600406eb19060c7128804d72 1
a1602b357cfca067600406eb19060c7128804d72 o default
On pull we end up with the same tip, and so wrongly reuse the invalid cache and crash.
$ hg pull ../repo --quiet
$ hg heads -T '{rev} {node} {branch}\n'
2 222ae9789a75703f9836e44de7db179cbfd420ee default
1 a1602b357cfca067600406eb19060c7128804d72 default
$ ls -1 .hg/cache/branch?*
.hg/cache/branch2-base
.hg/cache/branch2-served
$ cat .hg/cache/branch?-served
222ae9789a75703f9836e44de7db179cbfd420ee 2
a1602b357cfca067600406eb19060c7128804d72 o default
222ae9789a75703f9836e44de7db179cbfd420ee o default