view tests/test-mq-qclone-http.t @ 52176:72bc29f01570

revlog: add glue to use a pure-Rust VFS

This will save us a lot of calling back into Python, which is always
horribly expensive.

We are now faster in all benchmarked cases except for `log --patch`
specifically on mozilla-try. Fixing this will happen in a later patch.

```
### data-env-vars.name            = mercurial-devel-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.cat
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.files      = all-root
  # benchmark.variants.output     = plain
  # benchmark.variants.rev        = tip
e679697a6ca4: 1.760765  ~~~~~
5559d7e63ec3: 1.555513  (-11.66%, -0.21)
### data-env-vars.name            = mozilla-try-2024-03-26-ds2-pnm
  # benchmark.name                = hg.command.cat
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.files      = all-root
  # benchmark.variants.output     = plain
  # benchmark.variants.rev        = tip
e679697a6ca4: 62.848869  ~~~~~
5559d7e63ec3: 58.113051   (-7.54%, -4.74)
### data-env-vars.name            = mozilla-try-2024-03-26-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 10
  # benchmark.variants.patch      = yes
  # benchmark.variants.rev        = none
e679697a6ca4: 3.173532  ~~~~~
5559d7e63ec3: 3.543591  (+11.66%, +0.37)
### data-env-vars.name            = mozilla-try-2024-03-26-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 1000
  # benchmark.variants.patch      = no
  # benchmark.variants.rev        = none
e679697a6ca4: 1.214698  ~~~~~
5559d7e63ec3: 1.192478   (-1.83%, -0.02)
### data-env-vars.name            = mozilla-unified-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.cat
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.files      = all-root
  # benchmark.variants.output     = plain
  # benchmark.variants.rev        = tip
e679697a6ca4: 56.205474  ~~~~~
5559d7e63ec3: 51.520074   (-8.34%, -4.69)
### data-env-vars.name            = mozilla-unified-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 10
  # benchmark.variants.patch      = yes
  # benchmark.variants.rev        = none
e679697a6ca4: 2.105419  ~~~~~
5559d7e63ec3: 2.051849   (-2.54%, -0.05)
### data-env-vars.name            = mozilla-unified-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 1000
  # benchmark.variants.patch      = no
  # benchmark.variants.rev        = none
e679697a6ca4: 0.309960  ~~~~~
5559d7e63ec3: 0.299035   (-3.52%, -0.01)
### data-env-vars.name            = tryton-public-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.cat
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.files      = all-root
  # benchmark.variants.output     = plain
  # benchmark.variants.rev        = tip
e679697a6ca4: 1.849832  ~~~~~
5559d7e63ec3: 1.805076   (-2.42%, -0.04)
### data-env-vars.name            = tryton-public-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 10
  # benchmark.variants.patch      = yes
  # benchmark.variants.rev        = none
e679697a6ca4: 0.289521  ~~~~~
5559d7e63ec3: 0.279889   (-3.33%, -0.01)
### data-env-vars.name            = tryton-public-2024-03-22-ds2-pnm
  # benchmark.name                = hg.command.log
  # bin-env-vars.hg.flavor        = rust
  # bin-env-vars.hg.py-re2-module = default
  # benchmark.variants.limit-rev  = 1000
  # benchmark.variants.patch      = no
  # benchmark.variants.rev        = none
e679697a6ca4: 0.332270  ~~~~~
5559d7e63ec3: 0.323324   (-2.69%, -0.01)
```

hide outer repo
  $ hg init

  $ echo "[extensions]" >> $HGRCPATH
  $ echo "mq=" >> $HGRCPATH
  $ mkdir webdir
  $ cd webdir
  $ hg init a
  $ hg --cwd a qinit -c
  $ echo a > a/a
  $ hg --cwd a ci -A -m a
  adding a
  $ echo b > a/b
  $ hg --cwd a addremove
  adding b
  $ hg --cwd a qnew -f b.patch
  $ hg --cwd a qcommit -m b.patch
  $ hg --cwd a log --template "{desc}\n"
  [mq]: b.patch
  a
  $ hg --cwd a/.hg/patches log --template "{desc}\n"
  b.patch
  $ root=`pwd`
  $ cd ..

test with recursive collection

  $ cat > collections.conf <<EOF
  > [paths]
  > /=$root/**
  > EOF
  $ hg serve -p $HGPORT -d --pid-file=hg.pid --webdir-conf collections.conf \
  >     -A access-paths.log -E error-paths-1.log
  $ cat hg.pid >> $DAEMON_PIDS
  $ get-with-headers.py localhost:$HGPORT '?style=raw'
  200 Script output follows
  
  
  /a/
  /a/.hg/patches/
  
  $ hg qclone http://localhost:$HGPORT/a b
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  new changesets cb9a9f314b8b:184916345baa
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 3 changes to 3 files
  new changesets 4052ceaa8c4e
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg --cwd b log --template "{desc}\n"
  a
  $ hg --cwd b qpush -a
  applying b.patch
  now at: b.patch
  $ hg --cwd b log --template "{desc}\n"
  imported patch b.patch
  a

test with normal collection

  $ cat > collections1.conf <<EOF
  > [paths]
  > /=$root/*
  > EOF
  $ hg serve -p $HGPORT1 -d --pid-file=hg.pid --webdir-conf collections1.conf \
  >     -A access-paths.log -E error-paths-1.log
  $ cat hg.pid >> $DAEMON_PIDS
  $ get-with-headers.py localhost:$HGPORT1 '?style=raw'
  200 Script output follows
  
  
  /a/
  /a/.hg/patches/
  
  $ hg qclone http://localhost:$HGPORT1/a c
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  new changesets cb9a9f314b8b:184916345baa
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 3 changes to 3 files
  new changesets 4052ceaa8c4e
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg --cwd c log --template "{desc}\n"
  a
  $ hg --cwd c qpush -a
  applying b.patch
  now at: b.patch
  $ hg --cwd c log --template "{desc}\n"
  imported patch b.patch
  a

test with old-style collection

  $ cat > collections2.conf <<EOF
  > [collections]
  > $root=$root
  > EOF
  $ hg serve -p $HGPORT2 -d --pid-file=hg.pid --webdir-conf collections2.conf \
  >     -A access-paths.log -E error-paths-1.log
  $ cat hg.pid >> $DAEMON_PIDS
  $ get-with-headers.py localhost:$HGPORT2 '?style=raw'
  200 Script output follows
  
  
  /a/
  /a/.hg/patches/
  
  $ hg qclone http://localhost:$HGPORT2/a d
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 2 files
  new changesets cb9a9f314b8b:184916345baa
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 3 changes to 3 files
  new changesets 4052ceaa8c4e
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg --cwd d log --template "{desc}\n"
  a
  $ hg --cwd d qpush -a
  applying b.patch
  now at: b.patch
  $ hg --cwd d log --template "{desc}\n"
  imported patch b.patch
  a

test --mq works and uses correct repository config

  $ hg --cwd d outgoing --mq
  comparing with http://localhost:$HGPORT2/a/.hg/patches
  searching for changes
  no changes found
  [1]
  $ hg --cwd d log --mq --template '{rev} {desc|firstline}\n'
  0 b.patch

  $ killdaemons.py