Mercurial > hg
view tests/test-commit-interactive-curses.t @ 32697:19b9fc40cc51
revlog: skeleton support for version 2 revlogs
There are a number of improvements we want to make to revlogs
that will require a new version - version 2. It is unclear what the
full set of improvements will be or when we'll be done with them.
What I do know is that the process will likely take longer than a
single release, will require input from various stakeholders to
evaluate changes, and will have many contentious debates and
bikeshedding.
It is unrealistic to develop revlog version 2 up front: there
are just too many uncertainties that we won't know until things
are implemented and experiments are run. Some changes will also
be invasive and prone to bit rot, so sitting on dozens of patches
is not practical.
This commit introduces skeleton support for version 2 revlogs in
a way that is flexible and not bound by backwards compatibility
concerns.
An experimental repo requirement for denoting revlog v2 has been
added. The requirement string has a sub-version component to it.
This will allow us to declare multiple requirements in the course
of developing revlog v2. Whenever we change the in-development
revlog v2 format, we can tweak the string, creating a new
requirement and locking out old clients. This will allow us to
make as many backwards incompatible changes and experiments to
revlog v2 as we want. In other words, we can land code and make
meaningful progress towards revlog v2 while still maintaining
extreme format flexibility up until the point we freeze the
format and remove the experimental labels.
To enable the new repo requirement, you must supply an experimental
and undocumented config option. But not just any boolean flag
will do: you need to explicitly use a value that no sane person
should ever type. This is an additional guard against enabling
revlog v2 on an installation it shouldn't be enabled on. The
specific scenario I'm trying to prevent is say a user with a
4.4 client with a frozen format enabling the option but then
downgrading to 4.3 and accidentally creating repos with an
outdated and unsupported repo format. Requiring a "challenge"
string should prevent this.
Because the format is not yet finalized and I don't want to take
any chances, revlog v2's version is currently 0xDEAD. I figure
squatting on a value we're likely never to use as an actual revlog
version to mean "internal testing only" is acceptable. And
"dead" is easily recognized as something meaningful.
There is a bunch of cleanup that is needed before work on revlog
v2 begins in earnest. I plan on doing that work once this patch
is accepted and we're comfortable with the idea of starting down
this path.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Fri, 19 May 2017 20:29:11 -0700 |
parents | 2bf62ca7072f |
children | 8e6f4939a69a |
line wrap: on
line source
#require tic Set up a repo $ cp $HGRCPATH $HGRCPATH.pretest $ cat <<EOF >> $HGRCPATH > [ui] > interactive = true > interface = curses > [experimental] > crecordtest = testModeCommands > EOF Record with noeol at eof (issue5268) $ hg init noeol $ cd noeol $ printf '0' > a $ printf '0\n' > b $ hg ci -Aqm initial $ printf '1\n0' > a $ printf '1\n0\n' > b $ cat <<EOF >testModeCommands > c > EOF $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "add hunks" -d "0 0" $ cd .. Normal repo $ hg init a $ cd a Committing some changes but stopping on the way $ echo "a" > a $ hg add a $ cat <<EOF >testModeCommands > TOGGLE > X > EOF $ hg commit -i -m "a" -d "0 0" no changes to record [1] $ hg tip changeset: -1:000000000000 tag: tip user: date: Thu Jan 01 00:00:00 1970 +0000 Committing some changes $ cat <<EOF >testModeCommands > X > EOF $ hg commit -i -m "a" -d "0 0" $ hg tip changeset: 0:cb9a9f314b8b tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: a Check that commit -i works with no changes $ hg commit -i no changes to record [1] Committing only one file $ echo "a" >> a >>> open('b', 'wb').write("1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n") $ hg add b $ cat <<EOF >testModeCommands > TOGGLE > KEY_DOWN > X > EOF $ hg commit -i -m "one file" -d "0 0" $ hg tip changeset: 1:fb2705a663ea tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: one file $ hg cat -r tip a a $ cat a a a Committing only one hunk while aborting edition of hunk - Untoggle all the hunks, go down to the second file - unfold it - go down to second hunk (1 for the first hunk, 1 for the first hunkline, 1 for the second hunk, 1 for the second hunklike) - toggle the second hunk - toggle on and off the amend mode (to check that it toggles off) - edit the hunk and quit the editor immediately with non-zero status - commit $ printf "printf 'editor ran\n'; exit 1" > editor.sh $ echo "x" > c $ cat b >> c $ echo "y" >> c $ mv c b $ cat <<EOF >testModeCommands > A > KEY_DOWN > f > KEY_DOWN > KEY_DOWN > KEY_DOWN > KEY_DOWN > TOGGLE > a > a > e > X > EOF $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "one hunk" -d "0 0" editor ran $ rm editor.sh $ hg tip changeset: 2:7d10dfe755a8 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: one hunk $ hg cat -r tip b 1 2 3 4 5 6 7 8 9 10 y $ cat b x 1 2 3 4 5 6 7 8 9 10 y $ hg commit -m "other hunks" $ hg tip changeset: 3:a6735021574d tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: other hunks $ hg cat -r tip b x 1 2 3 4 5 6 7 8 9 10 y Newly added files can be selected with the curses interface $ hg update -C . 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "hello" > x $ hg add x $ cat <<EOF >testModeCommands > TOGGLE > TOGGLE > X > EOF $ hg st A x ? testModeCommands $ hg commit -i -m "newly added file" -d "0 0" $ hg st ? testModeCommands Amend option works $ echo "hello world" > x $ hg diff -c . diff -r a6735021574d -r 2b0e9be4d336 x --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/x Thu Jan 01 00:00:00 1970 +0000 @@ -0,0 +1,1 @@ +hello $ cat <<EOF >testModeCommands > a > X > EOF $ hg commit -i -m "newly added file" -d "0 0" saved backup bundle to $TESTTMP/a/.hg/strip-backup/2b0e9be4d336-28bbe4e2-amend-backup.hg (glob) $ hg diff -c . diff -r a6735021574d -r c1d239d165ae x --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/x Thu Jan 01 00:00:00 1970 +0000 @@ -0,0 +1,1 @@ +hello world Editing a hunk puts you back on that hunk when done editing (issue5041) To do that, we change two lines in a file, pretend to edit the second line, exit, toggle the line selected at the end of the edit and commit. The first line should be recorded if we were put on the second line at the end of the edit. $ hg update -C . 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "foo" > x $ echo "hello world" >> x $ echo "bar" >> x $ cat <<EOF >testModeCommands > f > KEY_DOWN > KEY_DOWN > KEY_DOWN > KEY_DOWN > e > TOGGLE > X > EOF $ printf "printf 'editor ran\n'; exit 0" > editor.sh $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "edit hunk" -d "0 0" editor ran $ hg cat -r . x foo hello world Testing the review option. The entire final filtered patch should show up in the editor and be editable. We will unselect the second file and the first hunk of the third file. During review, we will decide that "lower" sounds better than "bottom", and the final commit should reflect this edition. $ hg update -C . 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "top" > c $ cat x >> c $ echo "bottom" >> c $ mv c x $ echo "third a" >> a $ echo "we will unselect this" >> b $ cat > editor.sh <<EOF > cat "\$1" > cat "\$1" | sed s/bottom/lower/ > tmp > mv tmp "\$1" > EOF $ cat > testModeCommands <<EOF > KEY_DOWN > TOGGLE > KEY_DOWN > f > KEY_DOWN > TOGGLE > R > EOF $ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "review hunks" -d "0 0" # To remove '-' lines, make them ' ' lines (context). # To remove '+' lines, delete them. # Lines starting with # will be removed from the patch. # # If the patch applies cleanly, the edited patch will immediately # be finalised. If it does not apply cleanly, rejects files will be # generated. You can use those when you try again. diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,3 @@ a a +third a diff --git a/x b/x --- a/x +++ b/x @@ -1,2 +1,3 @@ foo hello world +bottom $ hg cat -r . a a a third a $ hg cat -r . b x 1 2 3 4 5 6 7 8 9 10 y $ hg cat -r . x foo hello world lower Check spacemovesdown $ cat <<EOF >> $HGRCPATH > [experimental] > spacemovesdown = true > EOF $ cat <<EOF >testModeCommands > TOGGLE > TOGGLE > X > EOF $ hg status -q M b M x $ hg commit -i -m "nothing to commit?" -d "0 0" no changes to record [1] Check ui.interface logic for the chunkselector The default interface is text $ cp $HGRCPATH.pretest $HGRCPATH $ chunkselectorinterface() { > python <<EOF > from mercurial import hg, ui;\ > repo = hg.repository(ui.ui.load(), ".");\ > print repo.ui.interface("chunkselector") > EOF > } $ chunkselectorinterface text If only the default is set, we'll use that for the feature, too $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = curses > EOF $ chunkselectorinterface curses It is possible to override the default interface with a feature specific interface $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = text > interface.chunkselector = curses > EOF $ chunkselectorinterface curses $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = curses > interface.chunkselector = text > EOF $ chunkselectorinterface text If a bad interface name is given, we use the default value (with a nice error message to suggest that the configuration needs to be fixed) $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = blah > EOF $ chunkselectorinterface invalid value for ui.interface: blah (using text) text $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = curses > interface.chunkselector = blah > EOF $ chunkselectorinterface invalid value for ui.interface.chunkselector: blah (using curses) curses $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = blah > interface.chunkselector = curses > EOF $ chunkselectorinterface invalid value for ui.interface: blah curses $ cp $HGRCPATH.pretest $HGRCPATH $ cat <<EOF >> $HGRCPATH > [ui] > interface = blah > interface.chunkselector = blah > EOF $ chunkselectorinterface invalid value for ui.interface: blah invalid value for ui.interface.chunkselector: blah (using text) text