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wireprotov2: define and implement "manifestdata" command...
wireprotov2: define and implement "manifestdata" command The added command can be used for obtaining manifest data. Given a manifest path and set of manifest nodes, data about manifests can be retrieved. Unlike changeset data, we wish to emit deltas to describe manifest revisions. So the command uses the relatively new API for building delta requests and emitting them. The code calls into deltaparent(), which I'm not very keen of. There's still work to be done in delta generation land so implementation details of storage (e.g. exactly one delta is stored/available) don't creep into higher levels. But we can worry about this later (there is already a TODO on imanifestorage tracking this). On the subject of parent deltas, the server assumes parent revisions exist on the receiving end. This is obviously wrong for shallow clone. I've added TODOs to add a mechanism to the command to allow clients to specify desired behavior. This shouldn't be too difficult to implement. Another big change is that the client must explicitly request manifest nodes to retrieve. This is a major departure from "getbundle," where the server derives relevant manifests as it iterates changesets and sends them automatically. As implemented, the client must transmit each requested node to the server. At 20 bytes per node, we're looking at 2 MB per 100,000 nodes. Plus wire encoding overhead. This isn't ideal for clients with limited upload bandwidth. I plan to address this in the future by allowing alternate mechanisms for defining the revisions to retrieve. One idea is to define a range of changeset revisions whose manifest revisions to retrieve (similar to how "changesetdata" works). We almost certainly want an API to look up an individual manifest by node. And that's where I've chosen to start with the implementation. Again, a theme of this early exchangev2 work is I want to start by building primitives for accessing raw repository data first and see how far we can get with those before we need more complexity. Differential Revision: https://phab.mercurial-scm.org/D4488
Matt Harbison - - Load All Authors

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test-mq-subrepo.t
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$ cat <<EOF >> $HGRCPATH
> [ui]
> commitsubrepos = Yes
> [extensions]
> mq =
> record =
> [diff]
> nodates = 1
> EOF
$ stdin=`pwd`/stdin.tmp
fn to create new repository w/dirty subrepo, and cd into it
$ mkrepo() {
> hg init $1
> cd $1
> hg qinit
> }
fn to create dirty subrepo
$ mksubrepo() {
> hg init $1
> cd $1
> echo a > a
> hg add
> cd ..
> }
$ testadd() {
> cat - > "$stdin"
> mksubrepo sub
> echo sub = sub >> .hgsub
> hg add .hgsub
> echo % abort when adding .hgsub w/dirty subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> echo [$?]
> hg -R sub ci -m0sub
> echo % update substate when adding .hgsub w/clean updated subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> hg debugsub
> }
$ testmod() {
> cat - > "$stdin"
> mksubrepo sub2
> echo sub2 = sub2 >> .hgsub
> echo % abort when modifying .hgsub w/dirty subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> echo [$?]
> hg -R sub2 ci -m0sub2
> echo % update substate when modifying .hgsub w/clean updated subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> hg debugsub
> }
$ testrm1() {
> cat - > "$stdin"
> mksubrepo sub3
> echo sub3 = sub3 >> .hgsub
> hg ci -Aqmsub3
> $EXTRA
> echo b >> sub3/a
> hg rm .hgsub
> echo % update substate when removing .hgsub w/dirty subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> echo % debugsub should be empty
> hg debugsub
> }
$ testrm2() {
> cat - > "$stdin"
> mksubrepo sub4
> echo sub4 = sub4 >> .hgsub
> hg ci -Aqmsub4
> $EXTRA
> hg rm .hgsub
> echo % update substate when removing .hgsub w/clean updated subrepo
> hg status -S
> echo '%' $*
> cat "$stdin" | hg $*
> echo % debugsub should be empty
> hg debugsub
> }
handle subrepos safely on qnew
$ mkrepo repo-2499-qnew
$ testadd qnew -X path:no-effect -m0 0.diff
adding a
% abort when adding .hgsub w/dirty subrepo
A .hgsub
A sub/a
% qnew -X path:no-effect -m0 0.diff
abort: uncommitted changes in subrepository "sub"
[255]
% update substate when adding .hgsub w/clean updated subrepo
A .hgsub
A sub/a
% qnew -X path:no-effect -m0 0.diff
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
$ testmod qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
adding a
% abort when modifying .hgsub w/dirty subrepo
M .hgsub
A sub2/a
% qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
abort: uncommitted changes in subrepository "sub2"
[255]
% update substate when modifying .hgsub w/clean updated subrepo
M .hgsub
A sub2/a
% qnew --cwd .. -R repo-2499-qnew -X path:no-effect -m1 1.diff
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
path sub2
source sub2
revision 1f94c7611cc6b74f5a17b16121a1170d44776845
$ hg qpop -qa
patch queue now empty
$ testrm1 qnew -m2 2.diff
adding a
% update substate when removing .hgsub w/dirty subrepo
M sub3/a
R .hgsub
% qnew -m2 2.diff
% debugsub should be empty
$ hg qpop -qa
patch queue now empty
$ testrm2 qnew -m3 3.diff
adding a
% update substate when removing .hgsub w/clean updated subrepo
R .hgsub
% qnew -m3 3.diff
% debugsub should be empty
$ cd ..
handle subrepos safely on qrefresh
$ mkrepo repo-2499-qrefresh
$ hg qnew -m0 0.diff
$ testadd qrefresh
adding a
% abort when adding .hgsub w/dirty subrepo
A .hgsub
A sub/a
% qrefresh
abort: uncommitted changes in subrepository "sub"
[255]
% update substate when adding .hgsub w/clean updated subrepo
A .hgsub
A sub/a
% qrefresh
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
$ hg qnew -m1 1.diff
$ testmod qrefresh
adding a
% abort when modifying .hgsub w/dirty subrepo
M .hgsub
A sub2/a
% qrefresh
abort: uncommitted changes in subrepository "sub2"
[255]
% update substate when modifying .hgsub w/clean updated subrepo
M .hgsub
A sub2/a
% qrefresh
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
path sub2
source sub2
revision 1f94c7611cc6b74f5a17b16121a1170d44776845
$ hg qpop -qa
patch queue now empty
$ EXTRA='hg qnew -m2 2.diff'
$ testrm1 qrefresh
adding a
% update substate when removing .hgsub w/dirty subrepo
M sub3/a
R .hgsub
% qrefresh
% debugsub should be empty
$ hg qpop -qa
patch queue now empty
$ EXTRA='hg qnew -m3 3.diff'
$ testrm2 qrefresh
adding a
% update substate when removing .hgsub w/clean updated subrepo
R .hgsub
% qrefresh
% debugsub should be empty
$ EXTRA=
$ cd ..
handle subrepos safely on qpush/qpop
(and we cannot qpop / qpush with a modified subrepo)
$ mkrepo repo-2499-qpush
$ mksubrepo sub
adding a
$ hg -R sub ci -m0sub
$ echo sub = sub > .hgsub
$ hg add .hgsub
$ hg commit -m0
$ hg debugsub
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
$ echo foo > ./sub/a
$ hg -R sub commit -m foo
$ hg commit -m1
$ hg qimport -r "0:tip"
$ hg -R sub id --id
aa037b301eba
qpop
$ hg -R sub update 0000
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg qpop
abort: local changed subrepos found, qrefresh first
[255]
$ hg revert sub
reverting subrepo sub
adding sub/a
$ hg qpop
popping 1
now at: 0
$ hg status -AS
C .hgsub
C .hgsubstate
C sub/a
$ hg -R sub id --id
b2fdb12cd82b
qpush
$ hg -R sub update 0000
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg qpush
abort: local changed subrepos found, qrefresh first
[255]
$ hg revert sub
reverting subrepo sub
adding sub/a
$ hg qpush
applying 1
subrepository sub diverged (local revision: b2fdb12cd82b, remote revision: aa037b301eba)
(M)erge, keep (l)ocal or keep (r)emote? m
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
now at: 1
$ hg status -AS
C .hgsub
C .hgsubstate
C sub/a
$ hg -R sub id --id
aa037b301eba
$ cd ..
handle subrepos safely on qrecord
$ mkrepo repo-2499-qrecord
$ testadd qrecord --config ui.interactive=1 -m0 0.diff <<EOF
> y
> y
> EOF
adding a
% abort when adding .hgsub w/dirty subrepo
A .hgsub
A sub/a
% qrecord --config ui.interactive=1 -m0 0.diff
diff --git a/.hgsub b/.hgsub
new file mode 100644
examine changes to '.hgsub'? [Ynesfdaq?] y
@@ -0,0 +1,1 @@
+sub = sub
record this change to '.hgsub'? [Ynesfdaq?] y
warning: subrepo spec file '.hgsub' not found
warning: subrepo spec file '.hgsub' not found
abort: uncommitted changes in subrepository "sub"
[255]
% update substate when adding .hgsub w/clean updated subrepo
A .hgsub
A sub/a
% qrecord --config ui.interactive=1 -m0 0.diff
diff --git a/.hgsub b/.hgsub
new file mode 100644
examine changes to '.hgsub'? [Ynesfdaq?] y
@@ -0,0 +1,1 @@
+sub = sub
record this change to '.hgsub'? [Ynesfdaq?] y
warning: subrepo spec file '.hgsub' not found
warning: subrepo spec file '.hgsub' not found
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
$ testmod qrecord --config ui.interactive=1 -m1 1.diff <<EOF
> y
> y
> EOF
adding a
% abort when modifying .hgsub w/dirty subrepo
M .hgsub
A sub2/a
% qrecord --config ui.interactive=1 -m1 1.diff
diff --git a/.hgsub b/.hgsub
1 hunks, 1 lines changed
examine changes to '.hgsub'? [Ynesfdaq?] y
@@ -1,1 +1,2 @@
sub = sub
+sub2 = sub2
record this change to '.hgsub'? [Ynesfdaq?] y
abort: uncommitted changes in subrepository "sub2"
[255]
% update substate when modifying .hgsub w/clean updated subrepo
M .hgsub
A sub2/a
% qrecord --config ui.interactive=1 -m1 1.diff
diff --git a/.hgsub b/.hgsub
1 hunks, 1 lines changed
examine changes to '.hgsub'? [Ynesfdaq?] y
@@ -1,1 +1,2 @@
sub = sub
+sub2 = sub2
record this change to '.hgsub'? [Ynesfdaq?] y
path sub
source sub
revision b2fdb12cd82b021c3b7053d67802e77b6eeaee31
path sub2
source sub2
revision 1f94c7611cc6b74f5a17b16121a1170d44776845
$ hg qpop -qa
patch queue now empty
$ testrm1 qrecord --config ui.interactive=1 -m2 2.diff <<EOF
> y
> y
> EOF
adding a
% update substate when removing .hgsub w/dirty subrepo
M sub3/a
R .hgsub
% qrecord --config ui.interactive=1 -m2 2.diff
diff --git a/.hgsub b/.hgsub
deleted file mode 100644
examine changes to '.hgsub'? [Ynesfdaq?] y
% debugsub should be empty
$ hg qpop -qa
patch queue now empty
$ testrm2 qrecord --config ui.interactive=1 -m3 3.diff <<EOF
> y
> y
> EOF
adding a
% update substate when removing .hgsub w/clean updated subrepo
R .hgsub
% qrecord --config ui.interactive=1 -m3 3.diff
diff --git a/.hgsub b/.hgsub
deleted file mode 100644
examine changes to '.hgsub'? [Ynesfdaq?] y
% debugsub should be empty
$ cd ..
correctly handle subrepos with patch queues
$ mkrepo repo-subrepo-with-queue
$ mksubrepo sub
adding a
$ hg -R sub qnew sub0.diff
$ echo sub = sub >> .hgsub
$ hg add .hgsub
$ hg qnew 0.diff
$ cd ..
check whether MQ operations can import updated .hgsubstate correctly
both into 'revision' and 'patch file under .hg/patches':
$ hg init importing-hgsubstate
$ cd importing-hgsubstate
$ echo a > a
$ hg commit -u test -d '0 0' -Am '#0 in parent'
adding a
$ hg init sub
$ echo sa > sub/sa
$ hg -R sub commit -u test -d '0 0' -Am '#0 in sub'
adding sa
$ echo 'sub = sub' > .hgsub
$ touch .hgsubstate
$ hg add .hgsub .hgsubstate
$ hg qnew -u test -d '0 0' import-at-qnew
$ hg -R sub parents --template '{node} sub\n'
b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
$ cat .hgsubstate
b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
$ hg diff -c tip
diff -r f499373e340c -r f69e96d86e75 .hgsub
--- /dev/null
+++ b/.hgsub
@@ -0,0 +1,1 @@
+sub = sub
diff -r f499373e340c -r f69e96d86e75 .hgsubstate
--- /dev/null
+++ b/.hgsubstate
@@ -0,0 +1,1 @@
+b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
$ cat .hg/patches/import-at-qnew
# HG changeset patch
# User test
# Date 0 0
# Parent f499373e340cdca5d01dee904aeb42dd2a325e71
diff -r f499373e340c -r f69e96d86e75 .hgsub
--- /dev/null
+++ b/.hgsub
@@ -0,0 +1,1 @@
+sub = sub
diff -r f499373e340c -r f69e96d86e75 .hgsubstate
--- /dev/null
+++ b/.hgsubstate
@@ -0,0 +1,1 @@
+b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
$ hg parents --template '{node}\n'
f69e96d86e75a6d4fd88285dc9697acb23951041
$ hg parents --template '{files}\n'
.hgsub .hgsubstate
check also whether qnew not including ".hgsubstate" explicitly causes
as same result (in node hash) as one including it.
$ hg qpop -a -q
patch queue now empty
$ hg qdelete import-at-qnew
$ echo 'sub = sub' > .hgsub
$ hg add .hgsub
$ rm -f .hgsubstate
$ hg qnew -u test -d '0 0' import-at-qnew
$ hg parents --template '{node}\n'
f69e96d86e75a6d4fd88285dc9697acb23951041
$ hg parents --template '{files}\n'
.hgsub .hgsubstate
check whether qrefresh imports updated .hgsubstate correctly
$ hg qpop
popping import-at-qnew
patch queue now empty
$ hg qpush
applying import-at-qnew
now at: import-at-qnew
$ hg parents --template '{files}\n'
.hgsub .hgsubstate
$ hg qnew import-at-qrefresh
$ echo sb > sub/sb
$ hg -R sub commit -u test -d '0 0' -Am '#1 in sub'
adding sb
$ hg qrefresh -u test -d '0 0'
$ hg -R sub parents --template '{node} sub\n'
88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ cat .hgsubstate
88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg diff -c tip
diff -r 05b056bb9c8c -r d987bec230f4 .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ cat .hg/patches/import-at-qrefresh
# HG changeset patch
# User test
# Date 0 0
# Parent 05b056bb9c8c05ff15258b84fd42ab3527271033
diff -r 05b056bb9c8c .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg parents --template '{files}\n'
.hgsubstate
$ hg qrefresh -u test -d '0 0'
$ cat .hgsubstate
88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg diff -c tip
diff -r 05b056bb9c8c -r d987bec230f4 .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ cat .hg/patches/import-at-qrefresh
# HG changeset patch
# User test
# Date 0 0
# Parent 05b056bb9c8c05ff15258b84fd42ab3527271033
diff -r 05b056bb9c8c .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg parents --template '{files}\n'
.hgsubstate
$ hg update -C tip
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg qpop -a
popping import-at-qrefresh
popping import-at-qnew
patch queue now empty
$ hg -R sub update -C 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo 'sub = sub' > .hgsub
$ hg commit -Am '#1 in parent'
adding .hgsub
$ hg -R sub update -C 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg commit -Am '#2 in parent (but will be rolled back soon)'
$ hg rollback
repository tip rolled back to revision 1 (undo commit)
working directory now based on revision 1
$ hg status
M .hgsubstate
$ hg qnew -u test -d '0 0' checkstate-at-qnew
$ hg -R sub parents --template '{node} sub\n'
88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ cat .hgsubstate
88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg diff -c tip
diff -r 4d91eb2fa1d1 -r 1259c112d884 .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ cat .hg/patches/checkstate-at-qnew
# HG changeset patch
# User test
# Date 0 0
# Parent 4d91eb2fa1d1b22ec513347b9cd06f6b49d470fa
diff -r 4d91eb2fa1d1 -r 1259c112d884 .hgsubstate
--- a/.hgsubstate
+++ b/.hgsubstate
@@ -1,1 +1,1 @@
-b6f6e9c41f3dfd374a6d2ed4535c87951cf979cf sub
+88ac1bef5ed43b689d1d200b59886b675dec474b sub
$ hg parents --template '{files}\n'
.hgsubstate
check whether qrefresh not including ".hgsubstate" explicitly causes
as same result (in node hash) as one including it.
$ hg update -C -q 0
$ hg qpop -a -q
patch queue now empty
$ hg qnew -u test -d '0 0' add-hgsub-at-qrefresh
$ echo 'sub = sub' > .hgsub
$ echo > .hgsubstate
$ hg add .hgsub .hgsubstate
$ hg qrefresh -u test -d '0 0'
$ hg parents --template '{node}\n'
7c48c35501aae6770ed9c2517014628615821a8e
$ hg parents --template '{files}\n'
.hgsub .hgsubstate
$ hg qpop -a -q
patch queue now empty
$ hg qdelete add-hgsub-at-qrefresh
$ hg qnew -u test -d '0 0' add-hgsub-at-qrefresh
$ echo 'sub = sub' > .hgsub
$ hg add .hgsub
$ rm -f .hgsubstate
$ hg qrefresh -u test -d '0 0'
$ hg parents --template '{node}\n'
7c48c35501aae6770ed9c2517014628615821a8e
$ hg parents --template '{files}\n'
.hgsub .hgsubstate
$ cd ..
$ cd ..