Mercurial > hg
view tests/test-histedit-no-change.t @ 29859:a1092e2d70a3
help: internals topic for wire protocol
The Mercurial wire protocol is under-documented. This includes a lack
of source docstrings and comments as well as pages on the official
wiki.
This patch adds the beginnings of "internals" documentation on the
wire protocol.
The documentation should have nearly complete coverage on the
lower-level parts of the protocol, such as the different transport
mechanims, how commands and arguments are sent, capabilities, and,
of course, the commands themselves.
As part of writing this documentation, I discovered a number of
deficiencies in the protocol and bugs in the implementation. I've
started sending patches for some of the issues. I hope to send a lot
more.
This patch starts with the scaffolding for a new internals page.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 22 Aug 2016 19:46:39 -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 ..