Mercurial > hg
view tests/test-histedit-no-change.t @ 36975:795eb53f1d3e
rebase: allow in-memory merge of the working copy parent
Before this patch and when the rebase involved the working copy parent
(and thus the working copy too), we would not do in-memory rebase even
if requested to. The in-code comment explains that the reason had
something to do with avoiding an extra update, but I don't know which
update that refers to. Perhaps an earlier version of the code used to
update to the destination before rebasing even if in-memory rebase was
requested? That seems to not be done at least since aa660c1203a9
(rebase: do not bail on uncomitted changes if rebasing in-memory,
2017-12-07).
To see if this still made it slower, I create a single tiny commit on
top of one branch of the mozilla-unified repo (commit a1098c82 to be
exact) and rebased it to another branch (commit d4e9a7be). Before this
patch that took 11.8s and after this patch it took 8.6s (I only did
two runs each, but the timings were very consistent).
Differential Revision: https://phab.mercurial-scm.org/D2876
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Thu, 15 Mar 2018 13:19:55 -0700 |
parents | e7ff83b2bcfe |
children | 527ce85c2e60 |
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test for old histedit issue #6: editing a changeset without any actual change would corrupt the repository $ . "$TESTDIR/histedit-helpers.sh" $ cat >> $HGRCPATH <<EOF > [extensions] > histedit= > EOF $ initrepo () > { > dir="$1" > comment="$2" > if [ -n "${comment}" ]; then > echo % ${comment} > echo % ${comment} | sed 's:.:-:g' > fi > hg init ${dir} > cd ${dir} > for x in a b c d e f ; do > echo $x > $x > hg add $x > hg ci -m $x > done > cd .. > } $ geneditor () > { > # generate an editor script for selecting changesets to be edited > choice=$1 # changesets that should be edited (using sed line ranges) > cat <<EOF | sed 's:^....::' > # editing the rules, replacing 'pick' with 'edit' for the chosen lines > sed '${choice}s:^pick:edit:' "\$1" > "\${1}.tmp" > mv "\${1}.tmp" "\$1" > # displaying the resulting rules, minus comments and empty lines > sed '/^#/d;/^$/d;s:^:| :' "\$1" >&2 > EOF > } $ startediting () > { > # begin an editing session > choice="$1" # changesets that should be edited > number="$2" # number of changesets considered (from tip) > comment="$3" > geneditor "${choice}" > edit.sh > echo % start editing the history ${comment} > HGEDITOR="sh ./edit.sh" hg histedit -- -${number} 2>&1 | fixbundle > } $ continueediting () > { > # continue an edit already in progress > editor="$1" # message editor when finalizing editing > comment="$2" > echo % finalize changeset editing ${comment} > HGEDITOR=${editor} hg histedit --continue 2>&1 | fixbundle > } $ graphlog () > { > comment="${1:-log}" > echo % "${comment}" > hg log -G --template '{rev} {node} \"{desc|firstline}\"\n' > } $ initrepo r1 "test editing with no change" % test editing with no change ----------------------------- $ cd r1 $ graphlog "log before editing" % log before editing @ 5 652413bf663ef2a641cab26574e46d5f5a64a55a "f" | o 4 e860deea161a2f77de56603b340ebbb4536308ae "e" | o 3 055a42cdd88768532f9cf79daa407fc8d138de9b "d" | o 2 177f92b773850b59254aa5e923436f921b55483b "c" | o 1 d2ae7f538514cd87c17547b0de4cea71fe1af9fb "b" | o 0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b "a" $ startediting 2 3 "(not changing anything)" # edit the 2nd of 3 changesets % start editing the history (not changing anything) | pick 055a42cdd887 3 d | edit e860deea161a 4 e | pick 652413bf663e 5 f 0 files updated, 0 files merged, 2 files removed, 0 files unresolved Editing (e860deea161a), you may commit or record as needed now. (hg histedit --continue to resume) $ continueediting true "(leaving commit message unaltered)" % finalize changeset editing (leaving commit message unaltered) check state of working copy $ hg id 794fe033d0a0 tip $ graphlog "log after history editing" % log after history editing @ 5 794fe033d0a030f8df77c5de945fca35c9181c30 "f" | o 4 04d2fab980779f332dec458cc944f28de8b43435 "e" | o 3 055a42cdd88768532f9cf79daa407fc8d138de9b "d" | o 2 177f92b773850b59254aa5e923436f921b55483b "c" | o 1 d2ae7f538514cd87c17547b0de4cea71fe1af9fb "b" | o 0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b "a" $ cd .. $ initrepo r2 "test editing with no change, then abort" % test editing with no change, then abort ----------------------------------------- $ cd r2 $ graphlog "log before editing" % log before editing @ 5 652413bf663ef2a641cab26574e46d5f5a64a55a "f" | o 4 e860deea161a2f77de56603b340ebbb4536308ae "e" | o 3 055a42cdd88768532f9cf79daa407fc8d138de9b "d" | o 2 177f92b773850b59254aa5e923436f921b55483b "c" | o 1 d2ae7f538514cd87c17547b0de4cea71fe1af9fb "b" | o 0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b "a" $ startediting 1,2 3 "(not changing anything)" # edit the 1st two of 3 changesets % start editing the history (not changing anything) | edit 055a42cdd887 3 d | edit e860deea161a 4 e | pick 652413bf663e 5 f 0 files updated, 0 files merged, 3 files removed, 0 files unresolved Editing (055a42cdd887), you may commit or record as needed now. (hg histedit --continue to resume) $ continueediting true "(leaving commit message unaltered)" % finalize changeset editing (leaving commit message unaltered) Editing (e860deea161a), you may commit or record as needed now. (hg histedit --continue to resume) $ graphlog "log after first edit" % log after first edit @ 6 e5ae3ca2f1ffdbd89ec41ebc273a231f7c3022f2 "d" | | o 5 652413bf663ef2a641cab26574e46d5f5a64a55a "f" | | | o 4 e860deea161a2f77de56603b340ebbb4536308ae "e" | | | o 3 055a42cdd88768532f9cf79daa407fc8d138de9b "d" |/ o 2 177f92b773850b59254aa5e923436f921b55483b "c" | o 1 d2ae7f538514cd87c17547b0de4cea71fe1af9fb "b" | o 0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b "a" abort editing session, after first forcibly updating away $ hg up 0 abort: histedit in progress (use 'hg histedit --continue' or 'hg histedit --abort') [255] $ mv .hg/histedit-state .hg/histedit-state-ignore $ hg up 0 0 files updated, 0 files merged, 3 files removed, 0 files unresolved $ mv .hg/histedit-state-ignore .hg/histedit-state $ hg sum parent: 0:cb9a9f314b8b a branch: default commit: 1 added, 1 unknown (new branch head) update: 6 new changesets (update) phases: 7 draft hist: 2 remaining (histedit --continue) $ hg histedit --abort 2>&1 | fixbundle modified files should survive the abort when we've moved away already $ hg st A e ? edit.sh $ graphlog "log after abort" % log after abort o 5 652413bf663ef2a641cab26574e46d5f5a64a55a "f" | o 4 e860deea161a2f77de56603b340ebbb4536308ae "e" | o 3 055a42cdd88768532f9cf79daa407fc8d138de9b "d" | o 2 177f92b773850b59254aa5e923436f921b55483b "c" | o 1 d2ae7f538514cd87c17547b0de4cea71fe1af9fb "b" | @ 0 cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b "a" aborting and not changing files can skip mentioning updating (no) files $ hg up 5 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg commit --close-branch -m 'closebranch' $ startediting 1 1 "(not changing anything)" # edit the 3rd of 3 changesets % start editing the history (not changing anything) | edit 292aec348d9e 6 closebranch Editing (292aec348d9e), you may commit or record as needed now. (hg histedit --continue to resume) $ hg histedit --abort $ cd ..