Mercurial > hg
view tests/test-mq-header-date.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outdated and unsupported repo format.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 | a5c94ea3b8af |
children | 469b06b4c3ca |
line wrap: on
line source
$ cat <<EOF >> $HGRCPATH > [extensions] > mq = > [diff] > nodates = true > EOF $ catpatch() { > cat .hg/patches/$1.patch | sed -e "s/^diff \-r [0-9a-f]* /diff -r ... /" \ > -e "s/^\(# Parent \).*/\1/" > } $ catlog() { > catpatch $1 > hg log --template "{rev}: {desc} - {author}\n" > } $ catlogd() { > catpatch $1 > hg log --template "{rev}: {desc} - {author} - {date}\n" > } $ drop() { > hg qpop > hg qdel $1.patch > } $ runtest() { > echo ==== init > hg init a > cd a > hg qinit > > > echo ==== qnew -d > hg qnew -d '3 0' 1.patch > catlogd 1 > > echo ==== qref > echo "1" >1 > hg add > hg qref > catlogd 1 > > echo ==== qref -d > hg qref -d '4 0' > catlogd 1 > > > echo ==== qnew > hg qnew 2.patch > echo "2" >2 > hg add > hg qref > catlog 2 > > echo ==== qref -d > hg qref -d '5 0' > catlog 2 > > drop 2 > > > echo ==== qnew -d -m > hg qnew -d '6 0' -m "Three" 3.patch > catlogd 3 > > echo ==== qref > echo "3" >3 > hg add > hg qref > catlogd 3 > > echo ==== qref -m > hg qref -m "Drei" > catlogd 3 > > echo ==== qref -d > hg qref -d '7 0' > catlogd 3 > > echo ==== qref -d -m > hg qref -d '8 0' -m "Three (again)" > catlogd 3 > > > echo ==== qnew -m > hg qnew -m "Four" 4.patch > echo "4" >4 > hg add > hg qref > catlog 4 > > echo ==== qref -d > hg qref -d '9 0' > catlog 4 > > drop 4 > > > echo ==== qnew with HG header > hg qnew --config 'mq.plain=true' 5.patch > hg qpop > echo "# HG changeset patch" >>.hg/patches/5.patch > echo "# Date 10 0" >>.hg/patches/5.patch > hg qpush 2>&1 | grep 'Now at' > catlogd 5 > > echo ==== hg qref > echo "5" >5 > hg add > hg qref > catlogd 5 > > echo ==== hg qref -d > hg qref -d '11 0' > catlogd 5 > > > echo ==== qnew with plain header > hg qnew --config 'mq.plain=true' -d '12 0' 6.patch > hg qpop > hg qpush 2>&1 | grep 'now at' > catlog 6 > > echo ==== hg qref > echo "6" >6 > hg add > hg qref > catlogd 6 > > echo ==== hg qref -d > hg qref -d '13 0' > catlogd 6 > > drop 6 > > > echo ==== qnew -u > hg qnew -u jane 6.patch > echo "6" >6 > hg add > hg qref > catlog 6 > > echo ==== qref -d > hg qref -d '12 0' > catlog 6 > > drop 6 > > > echo ==== qnew -d > hg qnew -d '13 0' 7.patch > echo "7" >7 > hg add > hg qref > catlog 7 > > echo ==== qref -u > hg qref -u john > catlogd 7 > > > echo ==== qnew > hg qnew 8.patch > echo "8" >8 > hg add > hg qref > catlog 8 > > echo ==== qref -u -d > hg qref -u john -d '14 0' > catlog 8 > > drop 8 > > > echo ==== qnew -m > hg qnew -m "Nine" 9.patch > echo "9" >9 > hg add > hg qref > catlog 9 > > echo ==== qref -u -d > hg qref -u john -d '15 0' > catlog 9 > > drop 9 > > > echo ==== "qpop -a / qpush -a" > hg qpop -a > hg qpush -a > hg log --template "{rev}: {desc} - {author} - {date}\n" > } ======= plain headers $ echo "[mq]" >> $HGRCPATH $ echo "plain=true" >> $HGRCPATH $ mkdir sandbox $ (cd sandbox ; runtest) ==== init ==== qnew -d Date: 3 0 0: [mq]: 1.patch - test - 3.00 ==== qref adding 1 Date: 3 0 diff -r ... 1 --- /dev/null +++ b/1 @@ -0,0 +1,1 @@ +1 0: [mq]: 1.patch - test - 3.00 ==== qref -d Date: 4 0 diff -r ... 1 --- /dev/null +++ b/1 @@ -0,0 +1,1 @@ +1 0: [mq]: 1.patch - test - 4.00 ==== qnew adding 2 diff -r ... 2 --- /dev/null +++ b/2 @@ -0,0 +1,1 @@ +2 1: [mq]: 2.patch - test 0: [mq]: 1.patch - test ==== qref -d Date: 5 0 diff -r ... 2 --- /dev/null +++ b/2 @@ -0,0 +1,1 @@ +2 1: [mq]: 2.patch - test 0: [mq]: 1.patch - test popping 2.patch now at: 1.patch ==== qnew -d -m Date: 6 0 Three 1: Three - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref adding 3 Date: 6 0 Three diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Three - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref -m Date: 6 0 Drei diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Drei - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref -d Date: 7 0 Drei diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Drei - test - 7.00 0: [mq]: 1.patch - test - 4.00 ==== qref -d -m Date: 8 0 Three (again) diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew -m adding 4 Four diff -r ... 4 --- /dev/null +++ b/4 @@ -0,0 +1,1 @@ +4 2: Four - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -d Date: 9 0 Four diff -r ... 4 --- /dev/null +++ b/4 @@ -0,0 +1,1 @@ +4 2: Four - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 4.patch now at: 3.patch ==== qnew with HG header popping 5.patch now at: 3.patch # HG changeset patch # Date 10 0 2: imported patch 5.patch - test - 10.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref adding 5 # HG changeset patch # Date 10 0 # Parent diff -r ... 5 --- /dev/null +++ b/5 @@ -0,0 +1,1 @@ +5 2: [mq]: 5.patch - test - 10.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref -d # HG changeset patch # Date 11 0 # Parent diff -r ... 5 --- /dev/null +++ b/5 @@ -0,0 +1,1 @@ +5 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew with plain header popping 6.patch now at: 5.patch now at: 6.patch Date: 12 0 3: imported patch 6.patch - test 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== hg qref adding 6 Date: 12 0 diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - test - 12.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref -d Date: 13 0 diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - test - 13.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 popping 6.patch now at: 5.patch ==== qnew -u adding 6 From: jane diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - jane 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -d From: jane Date: 12 0 diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - jane 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 6.patch now at: 5.patch ==== qnew -d adding 7 Date: 13 0 diff -r ... 7 --- /dev/null +++ b/7 @@ -0,0 +1,1 @@ +7 3: [mq]: 7.patch - test 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u From: john Date: 13 0 diff -r ... 7 --- /dev/null +++ b/7 @@ -0,0 +1,1 @@ +7 3: [mq]: 7.patch - john - 13.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew adding 8 diff -r ... 8 --- /dev/null +++ b/8 @@ -0,0 +1,1 @@ +8 4: [mq]: 8.patch - test 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u -d From: john Date: 14 0 diff -r ... 8 --- /dev/null +++ b/8 @@ -0,0 +1,1 @@ +8 4: [mq]: 8.patch - john 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 8.patch now at: 7.patch ==== qnew -m adding 9 Nine diff -r ... 9 --- /dev/null +++ b/9 @@ -0,0 +1,1 @@ +9 4: Nine - test 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u -d From: john Date: 15 0 Nine diff -r ... 9 --- /dev/null +++ b/9 @@ -0,0 +1,1 @@ +9 4: Nine - john 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 9.patch now at: 7.patch ==== qpop -a / qpush -a popping 7.patch popping 5.patch popping 3.patch popping 1.patch patch queue now empty applying 1.patch applying 3.patch applying 5.patch applying 7.patch now at: 7.patch 3: imported patch 7.patch - john - 13.00 2: imported patch 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: imported patch 1.patch - test - 4.00 $ rm -r sandbox ======= hg headers $ echo "plain=false" >> $HGRCPATH $ mkdir sandbox $ (cd sandbox ; runtest) ==== init ==== qnew -d # HG changeset patch # Date 3 0 # Parent 0: [mq]: 1.patch - test - 3.00 ==== qref adding 1 # HG changeset patch # Date 3 0 # Parent diff -r ... 1 --- /dev/null +++ b/1 @@ -0,0 +1,1 @@ +1 0: [mq]: 1.patch - test - 3.00 ==== qref -d # HG changeset patch # Date 4 0 # Parent diff -r ... 1 --- /dev/null +++ b/1 @@ -0,0 +1,1 @@ +1 0: [mq]: 1.patch - test - 4.00 ==== qnew adding 2 # HG changeset patch # Parent diff -r ... 2 --- /dev/null +++ b/2 @@ -0,0 +1,1 @@ +2 1: [mq]: 2.patch - test 0: [mq]: 1.patch - test ==== qref -d # HG changeset patch # Date 5 0 # Parent diff -r ... 2 --- /dev/null +++ b/2 @@ -0,0 +1,1 @@ +2 1: [mq]: 2.patch - test 0: [mq]: 1.patch - test popping 2.patch now at: 1.patch ==== qnew -d -m # HG changeset patch # Date 6 0 # Parent Three 1: Three - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref adding 3 # HG changeset patch # Date 6 0 # Parent Three diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Three - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref -m # HG changeset patch # Date 6 0 # Parent Drei diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Drei - test - 6.00 0: [mq]: 1.patch - test - 4.00 ==== qref -d # HG changeset patch # Date 7 0 # Parent Drei diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Drei - test - 7.00 0: [mq]: 1.patch - test - 4.00 ==== qref -d -m # HG changeset patch # Date 8 0 # Parent Three (again) diff -r ... 3 --- /dev/null +++ b/3 @@ -0,0 +1,1 @@ +3 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew -m adding 4 # HG changeset patch # Parent Four diff -r ... 4 --- /dev/null +++ b/4 @@ -0,0 +1,1 @@ +4 2: Four - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -d # HG changeset patch # Date 9 0 # Parent Four diff -r ... 4 --- /dev/null +++ b/4 @@ -0,0 +1,1 @@ +4 2: Four - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 4.patch now at: 3.patch ==== qnew with HG header popping 5.patch now at: 3.patch # HG changeset patch # Date 10 0 2: imported patch 5.patch - test - 10.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref adding 5 # HG changeset patch # Date 10 0 # Parent diff -r ... 5 --- /dev/null +++ b/5 @@ -0,0 +1,1 @@ +5 2: [mq]: 5.patch - test - 10.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref -d # HG changeset patch # Date 11 0 # Parent diff -r ... 5 --- /dev/null +++ b/5 @@ -0,0 +1,1 @@ +5 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew with plain header popping 6.patch now at: 5.patch now at: 6.patch Date: 12 0 3: imported patch 6.patch - test 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== hg qref adding 6 Date: 12 0 diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - test - 12.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== hg qref -d Date: 13 0 diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - test - 13.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 popping 6.patch now at: 5.patch ==== qnew -u adding 6 # HG changeset patch # User jane # Parent diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - jane 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -d # HG changeset patch # User jane # Date 12 0 # Parent diff -r ... 6 --- /dev/null +++ b/6 @@ -0,0 +1,1 @@ +6 3: [mq]: 6.patch - jane 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 6.patch now at: 5.patch ==== qnew -d adding 7 # HG changeset patch # Date 13 0 # Parent diff -r ... 7 --- /dev/null +++ b/7 @@ -0,0 +1,1 @@ +7 3: [mq]: 7.patch - test 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u # HG changeset patch # User john # Date 13 0 # Parent diff -r ... 7 --- /dev/null +++ b/7 @@ -0,0 +1,1 @@ +7 3: [mq]: 7.patch - john - 13.00 2: [mq]: 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: [mq]: 1.patch - test - 4.00 ==== qnew adding 8 # HG changeset patch # Parent diff -r ... 8 --- /dev/null +++ b/8 @@ -0,0 +1,1 @@ +8 4: [mq]: 8.patch - test 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u -d # HG changeset patch # User john # Date 14 0 # Parent diff -r ... 8 --- /dev/null +++ b/8 @@ -0,0 +1,1 @@ +8 4: [mq]: 8.patch - john 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 8.patch now at: 7.patch ==== qnew -m adding 9 # HG changeset patch # Parent Nine diff -r ... 9 --- /dev/null +++ b/9 @@ -0,0 +1,1 @@ +9 4: Nine - test 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test ==== qref -u -d # HG changeset patch # User john # Date 15 0 # Parent Nine diff -r ... 9 --- /dev/null +++ b/9 @@ -0,0 +1,1 @@ +9 4: Nine - john 3: [mq]: 7.patch - john 2: [mq]: 5.patch - test 1: Three (again) - test 0: [mq]: 1.patch - test popping 9.patch now at: 7.patch ==== qpop -a / qpush -a popping 7.patch popping 5.patch popping 3.patch popping 1.patch patch queue now empty applying 1.patch applying 3.patch applying 5.patch applying 7.patch now at: 7.patch 3: imported patch 7.patch - john - 13.00 2: imported patch 5.patch - test - 11.00 1: Three (again) - test - 8.00 0: imported patch 1.patch - test - 4.00 $ rm -r sandbox