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view tests/test-histedit-fold.t @ 39862:5a9ab91e0a45
revlog: new API to emit revision data
I recently refactored changegroup generation code to make it more
storage agnostic. I made significant progress. But there is still
a bit of work to be done. Specifically:
* Changegroup code is looking at low-level storage attributes to
influence sorting. Sorting should be done at the storage layer.
* The linknode lookup and sorting code for ellipsis is very
complicated.
* Linknodes are just generally wonky because e.g. file storage doesn't
know how to translate a linkrev to a changelog node.
* We regressed performance when introducing the request-response
objects.
Having thought about this problem a bit, I think I've come up with
a better interface for emitting revision deltas.
This commit defines and implements that interface. See the docstring
in repository.py for more info.
This API adds 3 notable features over the previous one.
First, it defers node ordering to the storage implementation in
the common case but allows overriding as necessary. We have a
facility for requesting an exact ordering (used in ellipsis
mode). We have another facility for storage order (used for changelog).
Second, we have an argument specifying assumptions about parents
revisions. This can be used to force a fulltext revision when we
don't know the receiver has a parent revision to delta against.
Third, we can control whether revision data is emitted. This makes
the API suitable as a generic "index data retrieval" API as well
as for producing revision deltas - possibly in the same operation!
The new API is much simpler: we no longer need a complicated "request"
object to encapsulate the delta generation request. I'm optimistic
this will restore performance loss associated with
emitrevisiondeltas().
Storage unit tests for the new API have been implemented.
Future commits will port existing consumers of emitrevisiondeltas()
to the new API then remove emitrevisiondeltas().
Differential Revision: https://phab.mercurial-scm.org/D4722
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Fri, 21 Sep 2018 14:28:21 -0700 |
parents | 02b5b5c1bba8 |
children | 704a3aa3dc0a |
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Test histedit extension: Fold commands ====================================== This test file is dedicated to testing the fold command in non conflicting case. Initialization --------------- $ . "$TESTDIR/histedit-helpers.sh" $ cat >> $HGRCPATH <<EOF > [alias] > logt = log --template '{rev}:{node|short} {desc|firstline}\n' > [extensions] > histedit= > EOF Simple folding -------------------- $ addwithdate () > { > echo $1 > $1 > hg add $1 > hg ci -m $1 -d "$2 0" > } $ initrepo () > { > hg init r > cd r > addwithdate a 1 > addwithdate b 2 > addwithdate c 3 > addwithdate d 4 > addwithdate e 5 > addwithdate f 6 > } $ initrepo log before edit $ hg logt --graph @ 5:178e35e0ce73 f | o 4:1ddb6c90f2ee e | o 3:532247a8969b d | o 2:ff2c9fa2018b c | o 1:97d72e5f12c7 b | o 0:8580ff50825a a $ hg histedit ff2c9fa2018b --commands - 2>&1 <<EOF | fixbundle > pick 1ddb6c90f2ee e > pick 178e35e0ce73 f > fold ff2c9fa2018b c > pick 532247a8969b d > EOF log after edit $ hg logt --graph @ 4:c4d7f3def76d d | o 3:575228819b7e f | o 2:505a591af19e e | o 1:97d72e5f12c7 b | o 0:8580ff50825a a post-fold manifest $ hg manifest a b c d e f check histedit_source, including that it uses the later date, from the first changeset $ hg log --debug --rev 3 changeset: 3:575228819b7e6ed69e8c0a6a383ee59a80db7358 phase: draft parent: 2:505a591af19eed18f560af827b9e03d2076773dc parent: -1:0000000000000000000000000000000000000000 manifest: 3:81eede616954057198ead0b2c73b41d1f392829a user: test date: Thu Jan 01 00:00:06 1970 +0000 files+: c f extra: branch=default extra: histedit_source=7cad1d7030207872dfd1c3a7cb430f24f2884086,ff2c9fa2018b15fa74b33363bda9527323e2a99f description: f *** c rollup will fold without preserving the folded commit's message or date $ OLDHGEDITOR=$HGEDITOR $ HGEDITOR=false $ hg histedit 97d72e5f12c7 --commands - 2>&1 <<EOF | fixbundle > pick 97d72e5f12c7 b > roll 505a591af19e e > pick 575228819b7e f > pick c4d7f3def76d d > EOF $ HGEDITOR=$OLDHGEDITOR log after edit $ hg logt --graph @ 3:bab801520cec d | o 2:58c8f2bfc151 f | o 1:5d939c56c72e b | o 0:8580ff50825a a description is taken from rollup target commit $ hg log --debug --rev 1 changeset: 1:5d939c56c72e77e29f5167696218e2131a40f5cf phase: draft parent: 0:8580ff50825a50c8f716709acdf8de0deddcd6ab parent: -1:0000000000000000000000000000000000000000 manifest: 1:b5e112a3a8354e269b1524729f0918662d847c38 user: test date: Thu Jan 01 00:00:02 1970 +0000 files+: b e extra: branch=default extra: histedit_source=97d72e5f12c7e84f85064aa72e5a297142c36ed9,505a591af19eed18f560af827b9e03d2076773dc description: b check saving last-message.txt $ cat > $TESTTMP/abortfolding.py <<EOF > from mercurial import util > def abortfolding(ui, repo, hooktype, **kwargs): > ctx = repo[kwargs.get('node')] > if set(ctx.files()) == {b'c', b'd', b'f'}: > return True # abort folding commit only > ui.warn(b'allow non-folding commit\\n') > EOF $ cat > .hg/hgrc <<EOF > [hooks] > pretxncommit.abortfolding = python:$TESTTMP/abortfolding.py:abortfolding > EOF $ cat > $TESTTMP/editor.sh << EOF > echo "==== before editing" > cat \$1 > echo "====" > echo "check saving last-message.txt" >> \$1 > EOF $ rm -f .hg/last-message.txt $ hg status --rev '58c8f2bfc151^1::bab801520cec' A c A d A f $ HGEDITOR="sh $TESTTMP/editor.sh" hg histedit 58c8f2bfc151 --commands - 2>&1 <<EOF > pick 58c8f2bfc151 f > fold bab801520cec d > EOF allow non-folding commit ==== before editing f *** c *** d 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 c HG: added d HG: added f ==== transaction abort! rollback completed abort: pretxncommit.abortfolding hook failed [255] $ cat .hg/last-message.txt f *** c *** d check saving last-message.txt $ cd .. $ rm -r r folding preserves initial author but uses later date ---------------------------------------------------- $ initrepo $ hg ci -d '7 0' --user "someone else" --amend --quiet tip before edit $ hg log --rev . changeset: 5:10c36dd37515 tag: tip user: someone else date: Thu Jan 01 00:00:07 1970 +0000 summary: f $ hg --config progress.debug=1 --debug \ > histedit 1ddb6c90f2ee --commands - 2>&1 <<EOF | \ > egrep 'editing|unresolved' > pick 1ddb6c90f2ee e > fold 10c36dd37515 f > EOF editing: pick 1ddb6c90f2ee 4 e 1/2 changes (50.00%) editing: fold 10c36dd37515 5 f 2/2 changes (100.00%) tip after edit, which should use the later date, from the second changeset $ hg log --rev . changeset: 4:e4f3ec5d0b40 tag: tip user: test date: Thu Jan 01 00:00:07 1970 +0000 summary: e $ cd .. $ rm -r r folding and creating no new change doesn't break: ------------------------------------------------- folded content is dropped during a merge. The folded commit should properly disappear. $ mkdir fold-to-empty-test $ cd fold-to-empty-test $ hg init $ printf "1\n2\n3\n" > file $ hg add file $ hg commit -m '1+2+3' $ echo 4 >> file $ hg commit -m '+4' $ echo 5 >> file $ hg commit -m '+5' $ echo 6 >> file $ hg commit -m '+6' $ hg logt --graph @ 3:251d831eeec5 +6 | o 2:888f9082bf99 +5 | o 1:617f94f13c0f +4 | o 0:0189ba417d34 1+2+3 $ hg histedit 1 --commands - << EOF > pick 617f94f13c0f 1 +4 > drop 888f9082bf99 2 +5 > fold 251d831eeec5 3 +6 > EOF 1 files updated, 0 files merged, 0 files removed, 0 files unresolved merging file warning: conflicts while merging file! (edit, then use 'hg resolve --mark') Fix up the change (fold 251d831eeec5) (hg histedit --continue to resume) [1] There were conflicts, we keep P1 content. This should effectively drop the changes from +6. $ hg status -v M file ? file.orig # The repository is in an unfinished *histedit* state. # Unresolved merge conflicts: # # file # # To mark files as resolved: hg resolve --mark FILE # To continue: hg histedit --continue # To abort: hg histedit --abort $ hg resolve -l U file $ hg revert -r 'p1()' file $ hg resolve --mark file (no more unresolved files) continue: hg histedit --continue $ hg histedit --continue 251d831eeec5: empty changeset saved backup bundle to $TESTTMP/fold-to-empty-test/.hg/strip-backup/888f9082bf99-daa0b8b3-histedit.hg $ hg logt --graph @ 1:617f94f13c0f +4 | o 0:0189ba417d34 1+2+3 $ cd .. Test fold through dropped ------------------------- Test corner case where folded revision is separated from its parent by a dropped revision. $ hg init fold-with-dropped $ cd fold-with-dropped $ printf "1\n2\n3\n" > file $ hg commit -Am '1+2+3' adding file $ echo 4 >> file $ hg commit -m '+4' $ echo 5 >> file $ hg commit -m '+5' $ echo 6 >> file $ hg commit -m '+6' $ hg logt -G @ 3:251d831eeec5 +6 | o 2:888f9082bf99 +5 | o 1:617f94f13c0f +4 | o 0:0189ba417d34 1+2+3 $ hg histedit 1 --commands - << EOF > pick 617f94f13c0f 1 +4 > drop 888f9082bf99 2 +5 > fold 251d831eeec5 3 +6 > EOF 1 files updated, 0 files merged, 0 files removed, 0 files unresolved merging file warning: conflicts while merging file! (edit, then use 'hg resolve --mark') Fix up the change (fold 251d831eeec5) (hg histedit --continue to resume) [1] $ cat > file << EOF > 1 > 2 > 3 > 4 > 5 > EOF $ hg resolve --mark file (no more unresolved files) continue: hg histedit --continue $ hg commit -m '+5.2' created new head $ echo 6 >> file $ HGEDITOR=cat hg histedit --continue +4 *** +5.2 *** +6 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: changed file saved backup bundle to $TESTTMP/fold-with-dropped/.hg/strip-backup/617f94f13c0f-3d69522c-histedit.hg $ hg logt -G @ 1:10c647b2cdd5 +4 | o 0:0189ba417d34 1+2+3 $ hg export tip # HG changeset patch # User test # Date 0 0 # Thu Jan 01 00:00:00 1970 +0000 # Node ID 10c647b2cdd54db0603ecb99b2ff5ce66d5a5323 # Parent 0189ba417d34df9dda55f88b637dcae9917b5964 +4 *** +5.2 *** +6 diff -r 0189ba417d34 -r 10c647b2cdd5 file --- a/file Thu Jan 01 00:00:00 1970 +0000 +++ b/file Thu Jan 01 00:00:00 1970 +0000 @@ -1,3 +1,6 @@ 1 2 3 +4 +5 +6 $ cd .. Folding with initial rename (issue3729) --------------------------------------- $ hg init fold-rename $ cd fold-rename $ echo a > a.txt $ hg add a.txt $ hg commit -m a $ hg rename a.txt b.txt $ hg commit -m rename $ echo b >> b.txt $ hg commit -m b $ hg logt --follow b.txt 2:e0371e0426bc b 1:1c4f440a8085 rename 0:6c795aa153cb a $ hg histedit 1c4f440a8085 --commands - 2>&1 << EOF | fixbundle > pick 1c4f440a8085 rename > fold e0371e0426bc b > EOF $ hg logt --follow b.txt 1:cf858d235c76 rename 0:6c795aa153cb a $ cd .. Folding with swapping --------------------- This is an excuse to test hook with histedit temporary commit (issue4422) $ hg init issue4422 $ cd issue4422 $ echo a > a.txt $ hg add a.txt $ hg commit -m a $ echo b > b.txt $ hg add b.txt $ hg commit -m b $ echo c > c.txt $ hg add c.txt $ hg commit -m c $ hg logt 2:a1a953ffb4b0 c 1:199b6bb90248 b 0:6c795aa153cb a $ hg histedit 6c795aa153cb --config hooks.commit='echo commit $HG_NODE' --config hooks.tonative.commit=True \ > --commands - 2>&1 << EOF | fixbundle > pick 199b6bb90248 b > fold a1a953ffb4b0 c > pick 6c795aa153cb a > EOF commit 9599899f62c05f4377548c32bf1c9f1a39634b0c $ hg logt 1:9599899f62c0 a 0:79b99e9c8e49 b Test unix -> windows style variable substitution in external hooks. $ cat > $TESTTMP/tmp.hgrc <<'EOF' > [hooks] > pre-add = echo no variables > post-add = echo ran $HG_ARGS, literal \$non-var, 'also $non-var', $HG_RESULT > tonative.post-add = True > EOF $ echo "foo" > amended.txt $ HGRCPATH=$TESTTMP/tmp.hgrc hg add -v amended.txt running hook pre-add: echo no variables no variables adding amended.txt converting hook "post-add" to native (windows !) running hook post-add: echo ran %HG_ARGS%, literal $non-var, "also $non-var", %HG_RESULT% (windows !) running hook post-add: echo ran $HG_ARGS, literal \$non-var, 'also $non-var', $HG_RESULT (no-windows !) ran add -v amended.txt, literal $non-var, "also $non-var", 0 (windows !) ran add -v amended.txt, literal $non-var, also $non-var, 0 (no-windows !) $ hg ci -q --config extensions.largefiles= --amend -I amended.txt The fsmonitor extension is incompatible with the largefiles extension and has been disabled. (fsmonitor !) Test that folding multiple changes in a row doesn't show multiple editors. $ echo foo >> foo $ hg add foo $ hg ci -m foo1 $ echo foo >> foo $ hg ci -m foo2 $ echo foo >> foo $ hg ci -m foo3 $ hg logt 4:21679ff7675c foo3 3:b7389cc4d66e foo2 2:0e01aeef5fa8 foo1 1:578c7455730c a 0:79b99e9c8e49 b $ cat > "$TESTTMP/editor.sh" <<EOF > echo ran editor >> "$TESTTMP/editorlog.txt" > cat \$1 >> "$TESTTMP/editorlog.txt" > echo END >> "$TESTTMP/editorlog.txt" > echo merged foos > \$1 > EOF $ HGEDITOR="sh \"$TESTTMP/editor.sh\"" hg histedit 1 --commands - 2>&1 <<EOF | fixbundle > pick 578c7455730c 1 a > pick 0e01aeef5fa8 2 foo1 > fold b7389cc4d66e 3 foo2 > fold 21679ff7675c 4 foo3 > EOF $ hg logt 2:e8bedbda72c1 merged foos 1:578c7455730c a 0:79b99e9c8e49 b Editor should have run only once $ cat $TESTTMP/editorlog.txt ran editor foo1 *** foo2 *** foo3 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 END $ cd .. Test rolling into a commit with multiple children (issue5498) $ hg init roll $ cd roll $ echo a > a $ hg commit -qAm aa $ echo b > b $ hg commit -qAm bb $ hg up -q ".^" $ echo c > c $ hg commit -qAm cc $ hg log -G -T '{node|short} {desc}' @ 5db65b93a12b cc | | o 301d76bdc3ae bb |/ o 8f0162e483d0 aa $ hg histedit . --commands - << EOF > r 5db65b93a12b > EOF hg: parse error: first changeset cannot use verb "roll" [255] $ hg log -G -T '{node|short} {desc}' @ 5db65b93a12b cc | | o 301d76bdc3ae bb |/ o 8f0162e483d0 aa