Mercurial > hg
view tests/test-conflict.t @ 44386:8f7c6656ac79
rust-nodemap: pure Rust example
To run, use `cargo run --release --example nodemap`
This demonstrates that simple scenarios entirely written
in Rust can content themselves with `NodeTree<T>`.
The example mmaps both the nodemap file and the changelog index.
We had of course to include an implementation of `RevlogIndex`
directly, which isn't much at this stage. It felt a bit
prematurate to include it in the lib.
Here are some first performance measurements, obtained with
this example, on a clone of mozilla-central with 440000
changesets:
(create) Nodemap constructed in RAM in 153.638305ms
(query CAE63161B68962) found in 22.362us: Ok(Some(269489))
(bench) Did 3 queries in 36.418µs (mean 12.139µs)
(bench) Did 50 queries in 184.318µs (mean 3.686µs)
(bench) Did 100000 queries in 31.053461ms (mean 310ns)
To be fair, even between bench runs, results tend to depend whether
the file is still in kernel caches, and it's not so easy to
get back to a real cold start. The worst we've seen was in the
50us ballpark.
In any busy server setting, the pages would always be in RAM.
We hope it's good enough not to be significantly slower on any
concrete Mercurial operation than the C nodetree when fully in RAM,
and of course this implementation has the serious headstart advantage
of persistence.
Differential Revision: https://phab.mercurial-scm.org/D7797
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Tue, 18 Feb 2020 19:11:15 +0100 |
parents | aac921f54554 |
children | 40411ad2f5d2 |
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$ hg init $ cat << EOF > a > Small Mathematical Series. > One > Two > Three > Four > Five > Hop we are done. > EOF $ hg add a $ hg commit -m ancestor $ cat << EOF > a > Small Mathematical Series. > 1 > 2 > 3 > 4 > 5 > Hop we are done. > EOF $ hg commit -m branch1 $ hg co 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat << EOF > a > Small Mathematical Series. > 1 > 2 > 3 > 6 > 8 > Hop we are done. > EOF $ hg commit -m branch2 created new head $ hg merge 1 merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ hg id 618808747361+c0c68e4fe667+ tip $ echo "[commands]" >> $HGRCPATH $ echo "status.verbose=true" >> $HGRCPATH $ hg status M a ? a.orig # The repository is in an unfinished *merge* state. # Unresolved merge conflicts: # # a # # To mark files as resolved: hg resolve --mark FILE # To continue: hg commit # To abort: hg merge --abort $ hg status -Tjson [ { "itemtype": "file", "path": "a", "status": "M", "unresolved": true }, { "itemtype": "file", "path": "a.orig", "status": "?" }, { "itemtype": "morestatus", "unfinished": "merge", "unfinishedmsg": "To continue: hg commit\nTo abort: hg merge --abort" } ] $ cat a Small Mathematical Series. 1 2 3 <<<<<<< working copy: 618808747361 - test: branch2 6 8 ======= 4 5 >>>>>>> merge rev: c0c68e4fe667 - test: branch1 Hop we are done. $ hg status --config commands.status.verbose=0 M a ? a.orig Verify custom conflict markers $ hg up -q --clean . $ cat <<EOF >> .hg/hgrc > [ui] > mergemarkertemplate = '{author} {rev}' > EOF $ hg merge 1 merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ cat a Small Mathematical Series. 1 2 3 <<<<<<< working copy: test 2 6 8 ======= 4 5 >>>>>>> merge rev: test 1 Hop we are done. Verify line splitting of custom conflict marker which causes multiple lines $ hg up -q --clean . $ cat >> .hg/hgrc <<EOF > [ui] > mergemarkertemplate={author} {rev}\nfoo\nbar\nbaz > EOF $ hg -q merge 1 warning: conflicts while merging a! (edit, then use 'hg resolve --mark') [1] $ cat a Small Mathematical Series. 1 2 3 <<<<<<< working copy: test 2 6 8 ======= 4 5 >>>>>>> merge rev: test 1 Hop we are done. Verify line trimming of custom conflict marker using multi-byte characters $ hg up -q --clean . $ "$PYTHON" <<EOF > fp = open('logfile', 'wb') > fp.write(b'12345678901234567890123456789012345678901234567890' + > b'1234567890') # there are 5 more columns for 80 columns > > # 2 x 4 = 8 columns, but 3 x 4 = 12 bytes > fp.write(u'\u3042\u3044\u3046\u3048'.encode('utf-8')) > > fp.close() > EOF $ hg add logfile $ hg --encoding utf-8 commit --logfile logfile $ cat >> .hg/hgrc <<EOF > [ui] > mergemarkertemplate={desc|firstline} > EOF $ hg -q --encoding utf-8 merge 1 warning: conflicts while merging a! (edit, then use 'hg resolve --mark') [1] $ cat a Small Mathematical Series. 1 2 3 <<<<<<< working copy: 1234567890123456789012345678901234567890123456789012345... 6 8 ======= 4 5 >>>>>>> merge rev: branch1 Hop we are done. Verify basic conflict markers $ hg up -q --clean 2 $ printf "\n[ui]\nmergemarkers=basic\n" >> .hg/hgrc $ hg merge 1 merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ cat a Small Mathematical Series. 1 2 3 <<<<<<< working copy 6 8 ======= 4 5 >>>>>>> merge rev Hop we are done. internal:merge3 $ hg up -q --clean . $ hg merge 1 --tool internal:merge3 merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ cat a Small Mathematical Series. <<<<<<< working copy 1 2 3 6 8 ||||||| base One Two Three Four Five ======= 1 2 3 4 5 >>>>>>> merge rev Hop we are done. Add some unconflicting changes on each head, to make sure we really are merging, unlike :local and :other $ hg up -C 2 files updated, 0 files merged, 0 files removed, 0 files unresolved updated to "e0693e20f496: 123456789012345678901234567890123456789012345678901234567890????" 1 other heads for branch "default" $ printf "\n\nEnd of file\n" >> a $ hg ci -m "Add some stuff at the end" $ hg up -r 1 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ printf "Start of file\n\n\n" > tmp $ cat a >> tmp $ mv tmp a $ hg ci -m "Add some stuff at the beginning" Now test :merge-other and :merge-local $ hg merge merging a warning: conflicts while merging a! (edit, then use 'hg resolve --mark') 1 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon [1] $ hg resolve --tool :merge-other a merging a (no more unresolved files) $ cat a Start of file Small Mathematical Series. 1 2 3 6 8 Hop we are done. End of file $ hg up -C 1 files updated, 0 files merged, 1 files removed, 0 files unresolved updated to "18b51d585961: Add some stuff at the beginning" 1 other heads for branch "default" $ hg merge --tool :merge-local merging a 2 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ cat a Start of file Small Mathematical Series. 1 2 3 4 5 Hop we are done. End of file