Mercurial > hg
view tests/test-commit.t @ 39496:2f9f7889549b
snapshot: introduce an intermediate `_refinedgroups` generator
This method will be used to improve the search for a good snapshot base. To
keep things simpler, we introduce the necessary function before doing any
delta base logic change. The next handful of commits will focus on refactoring
the code to let that new logic land as clearly as possible.
# General Idea
Right now, the search for a good delta base stop whenever we found a good one.
However, when using sparse-revlog, we should probably try a bit harder.
We do significant effort to increase delta re-use by jumping on "unrelated"
delta chains that provide better results. Moving to another chain for a better
result is good, but we have no guarantee we jump at a reasonable point in that
new chain. When we consider over the chains related to the parents, we start
from the higher-level snapshots. This is a way to consider the snapshot closer
to the current revision that has the best chance to produce a small delta. We
do benefit from this walk order when jumping to a better "unrelated" stack.
To counter-balance this, we'll introduce a way to "refine" the result. After a
good delta have been found, we'll keep searching for a better delta, using the
current best one as a starting point.
# Target Setup
The `finddeltainfo` method is responsible for the general search for a good
delta. It requests candidates base from `_candidategroups` and decides which
one are usable.
The `_candidategroups` generator act as a top-level filter, it does not care
about how we pick candidates, it just does basic filtering, excluding
revisions that have been tested already or that are an obvious misfit.
The `_rawgroups` generator is the one with the actual ancestors walking logic,
It does not care about what would do a good delta and what was already tested,
it just issues the initial candidates.
We introduce a new `_refinedgroup` function to bridge the gap between
`_candidategroups` and `_rawgroups`. It delegates the initial iteration logic
and then performing relevant refining of the valid base once found. (This
logic is yet to be added to function)
All these logics are fairly independent and easier to understand when standing
alone, not mixed with each other. It also makes it easy to test and try
different approaches for one of those four layers without affecting the other
ones.
# Technical details
To communicate `finddeltainfo` choice of "current best delta base" to the
`_refinegroup` logic, we plan to use python co-routine feature. The
`_candidategroups` and `_refinegroup` generators will become co-routine. This
will allow `_refinegroup` to detect when a good delta have been found and
triggers various refining steps.
For now, `_candidategroups` will just pass the value down the stack.
After poking at various option, the co-routine appears the best to keep each
layers focus on its duty, without the need to spread implementation details
across layers.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Fri, 07 Sep 2018 11:17:32 -0400 |
parents | d4e62df1c73d |
children | 5abc47d4ca6b |
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commit date test $ hg init test $ cd test $ echo foo > foo $ hg add foo $ cat > $TESTTMP/checkeditform.sh <<EOF > env | grep HGEDITFORM > true > EOF $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg commit -m "" HGEDITFORM=commit.normal.normal abort: empty commit message [255] $ hg commit -d '0 0' -m commit-1 $ echo foo >> foo $ hg commit -d '1 4444444' -m commit-3 hg: parse error: impossible time zone offset: 4444444 [255] $ hg commit -d '1 15.1' -m commit-4 hg: parse error: invalid date: '1\t15.1' [255] $ hg commit -d 'foo bar' -m commit-5 hg: parse error: invalid date: 'foo bar' [255] $ hg commit -d ' 1 4444' -m commit-6 $ hg commit -d '111111111111 0' -m commit-7 hg: parse error: date exceeds 32 bits: 111111111111 [255] $ hg commit -d '-111111111111 0' -m commit-7 hg: parse error: date exceeds 32 bits: -111111111111 [255] $ echo foo >> foo $ hg commit -d '1901-12-13 20:45:52 +0000' -m commit-7-2 $ echo foo >> foo $ hg commit -d '-2147483648 0' -m commit-7-3 $ hg log -T '{rev} {date|isodatesec}\n' -l2 3 1901-12-13 20:45:52 +0000 2 1901-12-13 20:45:52 +0000 $ hg commit -d '1901-12-13 20:45:51 +0000' -m commit-7 hg: parse error: date exceeds 32 bits: -2147483649 [255] $ hg commit -d '-2147483649 0' -m commit-7 hg: parse error: date exceeds 32 bits: -2147483649 [255] commit added file that has been deleted $ echo bar > bar $ hg add bar $ rm bar $ hg commit -m commit-8 nothing changed (1 missing files, see 'hg status') [1] $ hg commit -m commit-8-2 bar abort: bar: file not found! [255] $ hg -q revert -a --no-backup $ mkdir dir $ echo boo > dir/file $ hg add adding dir/file $ hg -v commit -m commit-9 dir committing files: dir/file committing manifest committing changelog committed changeset 4:1957363f1ced $ echo > dir.file $ hg add adding dir.file $ hg commit -m commit-10 dir dir.file abort: dir: no match under directory! [255] $ echo >> dir/file $ mkdir bleh $ mkdir dir2 $ cd bleh $ hg commit -m commit-11 . abort: bleh: no match under directory! [255] $ hg commit -m commit-12 ../dir ../dir2 abort: dir2: no match under directory! [255] $ hg -v commit -m commit-13 ../dir committing files: dir/file committing manifest committing changelog committed changeset 5:a31d8f87544a $ cd .. $ hg commit -m commit-14 does-not-exist abort: does-not-exist: * (glob) [255] #if symlink $ ln -s foo baz $ hg commit -m commit-15 baz abort: baz: file not tracked! [255] $ rm baz #endif $ touch quux $ hg commit -m commit-16 quux abort: quux: file not tracked! [255] $ echo >> dir/file $ hg -v commit -m commit-17 dir/file committing files: dir/file committing manifest committing changelog committed changeset 6:32d054c9d085 An empty date was interpreted as epoch origin $ echo foo >> foo $ hg commit -d '' -m commit-no-date --config devel.default-date= $ hg tip --template '{date|isodate}\n' | grep '1970' [1] Using the advanced --extra flag $ echo "[extensions]" >> $HGRCPATH $ echo "commitextras=" >> $HGRCPATH $ hg status ? quux $ hg add quux $ hg commit -m "adding internal used extras" --extra amend_source=hash abort: key 'amend_source' is used internally, can't be set manually [255] $ hg commit -m "special chars in extra" --extra id@phab=214 abort: keys can only contain ascii letters, digits, '_' and '-' [255] $ hg commit -m "empty key" --extra =value abort: unable to parse '=value', keys can't be empty [255] $ hg commit -m "adding extras" --extra sourcehash=foo --extra oldhash=bar $ hg log -r . -T '{extras % "{extra}\n"}' branch=default oldhash=bar sourcehash=foo Failed commit with --addremove should not update dirstate $ echo foo > newfile $ hg status ? newfile $ HGEDITOR=false hg ci --addremove adding newfile abort: edit failed: false exited with status 1 [255] $ hg status ? newfile Make sure we do not obscure unknown requires file entries (issue2649) $ echo foo >> foo $ echo fake >> .hg/requires $ hg commit -m bla abort: repository requires features unknown to this Mercurial: fake! (see https://mercurial-scm.org/wiki/MissingRequirement for more information) [255] $ cd .. partial subdir commit test $ hg init test2 $ cd test2 $ mkdir foo $ echo foo > foo/foo $ mkdir bar $ echo bar > bar/bar $ hg add adding bar/bar adding foo/foo $ HGEDITOR=cat hg ci -e -m commit-subdir-1 foo commit-subdir-1 HG: Enter commit message. Lines beginning with 'HG:' are removed. HG: Leave message empty to abort commit. HG: -- HG: user: test HG: branch 'default' HG: added foo/foo $ hg ci -m commit-subdir-2 bar subdir log 1 $ hg log -v foo changeset: 0:f97e73a25882 user: test date: Thu Jan 01 00:00:00 1970 +0000 files: foo/foo description: commit-subdir-1 subdir log 2 $ hg log -v bar changeset: 1:aa809156d50d tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 files: bar/bar description: commit-subdir-2 full log $ hg log -v changeset: 1:aa809156d50d tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 files: bar/bar description: commit-subdir-2 changeset: 0:f97e73a25882 user: test date: Thu Jan 01 00:00:00 1970 +0000 files: foo/foo description: commit-subdir-1 $ cd .. dot and subdir commit test $ hg init test3 $ echo commit-foo-subdir > commit-log-test $ cd test3 $ mkdir foo $ echo foo content > foo/plain-file $ hg add foo/plain-file $ HGEDITOR=cat hg ci --edit -l ../commit-log-test foo commit-foo-subdir HG: Enter commit message. Lines beginning with 'HG:' are removed. HG: Leave message empty to abort commit. HG: -- HG: user: test HG: branch 'default' HG: added foo/plain-file $ echo modified foo content > foo/plain-file $ hg ci -m commit-foo-dot . full log $ hg log -v changeset: 1:95b38e3a5b2e tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 files: foo/plain-file description: commit-foo-dot changeset: 0:65d4e9386227 user: test date: Thu Jan 01 00:00:00 1970 +0000 files: foo/plain-file description: commit-foo-subdir subdir log $ cd foo $ hg log . changeset: 1:95b38e3a5b2e tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-foo-dot changeset: 0:65d4e9386227 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-foo-subdir $ cd .. $ cd .. Issue1049: Hg permits partial commit of merge without warning $ hg init issue1049 $ cd issue1049 $ echo a > a $ hg ci -Ama adding a $ echo a >> a $ hg ci -mb $ hg up 0 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo b >> a $ hg ci -mc created new head $ HGMERGE=true hg merge merging a 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) should fail because we are specifying a file name $ hg ci -mmerge a abort: cannot partially commit a merge (do not specify files or patterns) [255] should fail because we are specifying a pattern $ hg ci -mmerge -I a abort: cannot partially commit a merge (do not specify files or patterns) [255] should succeed $ HGEDITOR="sh $TESTTMP/checkeditform.sh" hg ci -mmerge --edit HGEDITFORM=commit.normal.merge $ cd .. test commit message content $ hg init commitmsg $ cd commitmsg $ echo changed > changed $ echo removed > removed $ hg book activebookmark $ hg ci -qAm init $ hg rm removed $ echo changed >> changed $ echo added > added $ hg add added $ HGEDITOR=cat hg ci -A HG: Enter commit message. Lines beginning with 'HG:' are removed. HG: Leave message empty to abort commit. HG: -- HG: user: test HG: branch 'default' HG: bookmark 'activebookmark' HG: added added HG: changed changed HG: removed removed abort: empty commit message [255] test saving last-message.txt $ hg init sub $ echo a > sub/a $ hg -R sub add sub/a $ cat > sub/.hg/hgrc <<EOF > [hooks] > precommit.test-saving-last-message = false > EOF $ echo 'sub = sub' > .hgsub $ hg add .hgsub $ cat > $TESTTMP/editor.sh <<EOF > echo "==== before editing:" > cat \$1 > echo "====" > echo "test saving last-message.txt" >> \$1 > EOF $ rm -f .hg/last-message.txt $ HGEDITOR="sh $TESTTMP/editor.sh" hg commit -S -q ==== before editing: HG: Enter commit message. Lines beginning with 'HG:' are removed. HG: Leave message empty to abort commit. HG: -- HG: user: test HG: branch 'default' HG: bookmark 'activebookmark' HG: subrepo sub HG: added .hgsub HG: added added HG: changed .hgsubstate HG: changed changed HG: removed removed ==== abort: precommit.test-saving-last-message hook exited with status 1 (in subrepository "sub") [255] $ cat .hg/last-message.txt test saving last-message.txt test that '[committemplate] changeset' definition and commit log specific template keywords work well $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit.normal = 'HG: this is "commit.normal" template > HG: {extramsg} > {if(activebookmark, > "HG: bookmark '{activebookmark}' is activated\n", > "HG: no bookmark is activated\n")}{subrepos % > "HG: subrepo '{subrepo}' is changed\n"}' > > changeset.commit = HG: this is "commit" template > HG: {extramsg} > {if(activebookmark, > "HG: bookmark '{activebookmark}' is activated\n", > "HG: no bookmark is activated\n")}{subrepos % > "HG: subrepo '{subrepo}' is changed\n"} > > changeset = HG: this is customized commit template > HG: {extramsg} > {if(activebookmark, > "HG: bookmark '{activebookmark}' is activated\n", > "HG: no bookmark is activated\n")}{subrepos % > "HG: subrepo '{subrepo}' is changed\n"} > EOF $ hg init sub2 $ echo a > sub2/a $ hg -R sub2 add sub2/a $ echo 'sub2 = sub2' >> .hgsub $ HGEDITOR=cat hg commit -S -q HG: this is "commit.normal" template HG: Leave message empty to abort commit. HG: bookmark 'activebookmark' is activated HG: subrepo 'sub' is changed HG: subrepo 'sub2' is changed abort: empty commit message [255] $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit.normal = > # now, "changeset.commit" should be chosen for "hg commit" > EOF $ hg bookmark --inactive activebookmark $ hg forget .hgsub $ HGEDITOR=cat hg commit -q HG: this is "commit" template HG: Leave message empty to abort commit. HG: no bookmark is activated abort: empty commit message [255] $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit = > # now, "changeset" should be chosen for "hg commit" > EOF $ HGEDITOR=cat hg commit -q HG: this is customized commit template HG: Leave message empty to abort commit. HG: no bookmark is activated abort: empty commit message [255] $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset = {desc} > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files} > HG: > {splitlines(diff()) % 'HG: {line}\n' > }HG: > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files}\n > EOF $ hg status -amr M changed A added R removed $ HGEDITOR=cat hg commit -q -e -m "foo bar" changed foo bar HG: mods=changed HG: adds= HG: dels= HG: files=changed HG: HG: --- a/changed Thu Jan 01 00:00:00 1970 +0000 HG: +++ b/changed Thu Jan 01 00:00:00 1970 +0000 HG: @@ -1,1 +1,2 @@ HG: changed HG: +changed HG: HG: mods=changed HG: adds= HG: dels= HG: files=changed $ hg status -amr A added R removed $ hg parents --template "M {file_mods}\nA {file_adds}\nR {file_dels}\n" M changed A R $ hg rollback -q $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset = {desc} > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files} > HG: > {splitlines(diff("changed")) % 'HG: {line}\n' > }HG: > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files} > HG: > {splitlines(diff("added")) % 'HG: {line}\n' > }HG: > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files} > HG: > {splitlines(diff("removed")) % 'HG: {line}\n' > }HG: > HG: mods={file_mods} > HG: adds={file_adds} > HG: dels={file_dels} > HG: files={files}\n > EOF $ HGEDITOR=cat hg commit -q -e -m "foo bar" added removed foo bar HG: mods= HG: adds=added HG: dels=removed HG: files=added removed HG: HG: HG: mods= HG: adds=added HG: dels=removed HG: files=added removed HG: HG: --- /dev/null Thu Jan 01 00:00:00 1970 +0000 HG: +++ b/added Thu Jan 01 00:00:00 1970 +0000 HG: @@ -0,0 +1,1 @@ HG: +added HG: HG: mods= HG: adds=added HG: dels=removed HG: files=added removed HG: HG: --- a/removed Thu Jan 01 00:00:00 1970 +0000 HG: +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 HG: @@ -1,1 +0,0 @@ HG: -removed HG: HG: mods= HG: adds=added HG: dels=removed HG: files=added removed $ hg status -amr M changed $ hg parents --template "M {file_mods}\nA {file_adds}\nR {file_dels}\n" M A added R removed $ hg rollback -q $ cat >> .hg/hgrc <<EOF > # disable customizing for subsequent tests > [committemplate] > changeset = > EOF $ cd .. commit copy $ hg init dir2 $ cd dir2 $ echo bleh > bar $ hg add bar $ hg ci -m 'add bar' $ hg cp bar foo $ echo >> bar $ hg ci -m 'cp bar foo; change bar' $ hg debugrename foo foo renamed from bar:26d3ca0dfd18e44d796b564e38dd173c9668d3a9 $ hg debugindex bar rev linkrev nodeid p1 p2 0 0 26d3ca0dfd18 000000000000 000000000000 1 1 d267bddd54f7 26d3ca0dfd18 000000000000 Test making empty commits $ hg commit --config ui.allowemptycommit=True -m "empty commit" $ hg log -r . -v --stat changeset: 2:d809f3644287 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 description: empty commit verify pathauditor blocks evil filepaths $ cat > evil-commit.py <<EOF > from __future__ import absolute_import > from mercurial import context, hg, node, ui as uimod > notrc = u".h\u200cg".encode('utf-8') + b'/hgrc' > u = uimod.ui.load() > r = hg.repository(u, b'.') > def filectxfn(repo, memctx, path): > return context.memfilectx(repo, memctx, path, > b'[hooks]\nupdate = echo owned') > c = context.memctx(r, [r[b'tip'].node(), node.nullid], > b'evil', [notrc], filectxfn, 0) > r.commitctx(c) > EOF $ $PYTHON evil-commit.py #if windows $ hg co --clean tip abort: path contains illegal component: .h\xe2\x80\x8cg\\hgrc (esc) [255] #else $ hg co --clean tip abort: path contains illegal component: .h\xe2\x80\x8cg/hgrc (esc) [255] #endif $ hg rollback -f repository tip rolled back to revision 2 (undo commit) $ cat > evil-commit.py <<EOF > from __future__ import absolute_import > from mercurial import context, hg, node, ui as uimod > notrc = b"HG~1/hgrc" > u = uimod.ui.load() > r = hg.repository(u, b'.') > def filectxfn(repo, memctx, path): > return context.memfilectx(repo, memctx, path, > b'[hooks]\nupdate = echo owned') > c = context.memctx(r, [r[b'tip'].node(), node.nullid], > b'evil', [notrc], filectxfn, 0) > r.commitctx(c) > EOF $ $PYTHON evil-commit.py $ hg co --clean tip abort: path contains illegal component: HG~1/hgrc [255] $ hg rollback -f repository tip rolled back to revision 2 (undo commit) $ cat > evil-commit.py <<EOF > from __future__ import absolute_import > from mercurial import context, hg, node, ui as uimod > notrc = b"HG8B6C~2/hgrc" > u = uimod.ui.load() > r = hg.repository(u, b'.') > def filectxfn(repo, memctx, path): > return context.memfilectx(repo, memctx, path, > b'[hooks]\nupdate = echo owned') > c = context.memctx(r, [r[b'tip'].node(), node.nullid], > b'evil', [notrc], filectxfn, 0) > r.commitctx(c) > EOF $ $PYTHON evil-commit.py $ hg co --clean tip abort: path contains illegal component: HG8B6C~2/hgrc [255] # test that an unmodified commit template message aborts $ hg init unmodified_commit_template $ cd unmodified_commit_template $ echo foo > foo $ hg add foo $ hg commit -m "foo" $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit = HI THIS IS NOT STRIPPED > HG: this is customized commit template > HG: {extramsg} > {if(activebookmark, > "HG: bookmark '{activebookmark}' is activated\n", > "HG: no bookmark is activated\n")}{subrepos % > "HG: subrepo '{subrepo}' is changed\n"} > EOF $ cat > $TESTTMP/notouching.sh <<EOF > true > EOF $ echo foo2 > foo2 $ hg add foo2 $ HGEDITOR="sh $TESTTMP/notouching.sh" hg commit abort: commit message unchanged [255] test that text below the --- >8 --- special string is ignored $ cat <<'EOF' > $TESTTMP/lowercaseline.sh > cat $1 | sed s/LINE/line/ | tee $1.new > mv $1.new $1 > EOF $ hg init ignore_below_special_string $ cd ignore_below_special_string $ echo foo > foo $ hg add foo $ hg commit -m "foo" $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit = first LINE > HG: this is customized commit template > HG: {extramsg} > HG: ------------------------ >8 ------------------------ > {diff()} > EOF $ echo foo2 > foo2 $ hg add foo2 $ HGEDITOR="sh $TESTTMP/notouching.sh" hg ci abort: commit message unchanged [255] $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci first line HG: this is customized commit template HG: Leave message empty to abort commit. HG: ------------------------ >8 ------------------------ diff -r e63c23eaa88a foo2 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/foo2 Thu Jan 01 00:00:00 1970 +0000 @@ -0,0 +1,1 @@ +foo2 $ hg log -T '{desc}\n' -r . first line test that the special string --- >8 --- isn't used when not at the beginning of a line $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit = first LINE2 > another line HG: ------------------------ >8 ------------------------ > HG: this is customized commit template > HG: {extramsg} > HG: ------------------------ >8 ------------------------ > {diff()} > EOF $ echo foo >> foo $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci first line2 another line HG: ------------------------ >8 ------------------------ HG: this is customized commit template HG: Leave message empty to abort commit. HG: ------------------------ >8 ------------------------ diff -r 3661b22b0702 foo --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,2 @@ foo +foo $ hg log -T '{desc}\n' -r . first line2 another line HG: ------------------------ >8 ------------------------ also test that this special string isn't accepted when there is some extra text at the end $ cat >> .hg/hgrc <<EOF > [committemplate] > changeset.commit = first LINE3 > HG: ------------------------ >8 ------------------------foobar > second line > HG: this is customized commit template > HG: {extramsg} > HG: ------------------------ >8 ------------------------ > {diff()} > EOF $ echo foo >> foo $ HGEDITOR="sh $TESTTMP/lowercaseline.sh" hg ci first line3 HG: ------------------------ >8 ------------------------foobar second line HG: this is customized commit template HG: Leave message empty to abort commit. HG: ------------------------ >8 ------------------------ diff -r ce648f5f066f foo --- a/foo Thu Jan 01 00:00:00 1970 +0000 +++ b/foo Thu Jan 01 00:00:00 1970 +0000 @@ -1,2 +1,3 @@ foo foo +foo $ hg log -T '{desc}\n' -r . first line3 second line $ cd ..