rhg: desambiguate status without decompressing filelog if possible
When status is unsure based on `stat()` and the dirstate if a file is clean
or modified, we need to compare it against the filelog.
This comparison can skip looking at contents if the lengths differ.
This changeset optimize this further to deduce what we can about the length
if the filelog without decompressing it or resolving deltas.
Differential Revision: https://phab.mercurial-scm.org/D11965
Create an extension to test bundle2 with multiple changegroups
$ cat > bundle2.py <<EOF
> """
> """
> from mercurial import changegroup, discovery, exchange
>
> def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None,
> b2caps=None, heads=None, common=None,
> **kwargs):
> # Create two changegroups given the common changesets and heads for the
> # changegroup part we are being requested. Use the parent of each head
> # in 'heads' as intermediate heads for the first changegroup.
> intermediates = [repo[r].p1().node() for r in heads]
> outgoing = discovery.outgoing(repo, common, intermediates)
> cg = changegroup.makechangegroup(repo, outgoing, b'01',
> source, bundlecaps=bundlecaps)
> bundler.newpart(b'output', data=b'changegroup1')
> bundler.newpart(b'changegroup', data=cg.getchunks())
> outgoing = discovery.outgoing(repo, common + intermediates, heads)
> cg = changegroup.makechangegroup(repo, outgoing, b'01',
> source, bundlecaps=bundlecaps)
> bundler.newpart(b'output', data=b'changegroup2')
> bundler.newpart(b'changegroup', data=cg.getchunks())
>
> def _pull(repo, *args, **kwargs):
> pullop = _orig_pull(repo, *args, **kwargs)
> repo.ui.write(b'pullop.cgresult is %d\n' % pullop.cgresult)
> return pullop
>
> _orig_pull = exchange.pull
> exchange.pull = _pull
> exchange.getbundle2partsmapping[b'changegroup'] = _getbundlechangegrouppart
> EOF
$ cat >> $HGRCPATH << EOF
> [command-templates]
> log={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline}
> EOF
Start with a simple repository with a single commit
$ hg init repo
$ cd repo
$ cat > .hg/hgrc << EOF
> [extensions]
> bundle2=$TESTTMP/bundle2.py
> EOF
$ echo A > A
$ hg commit -A -m A -q
$ cd ..
Clone
$ hg clone -q repo clone
Add two linear commits
$ cd repo
$ echo B > B
$ hg commit -A -m B -q
$ echo C > C
$ hg commit -A -m C -q
$ cd ../clone
$ cat >> .hg/hgrc <<EOF
> [hooks]
> pretxnchangegroup = sh -c "printenv.py --line pretxnchangegroup"
> changegroup = sh -c "printenv.py --line changegroup"
> incoming = sh -c "printenv.py --line incoming"
> EOF
Pull the new commits in the clone
$ hg pull
pulling from $TESTTMP/repo
searching for changes
remote: changegroup1
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56
HG_NODE_LAST=27547f69f25460a52fff66ad004e58da7ad3fb56
HG_PENDING=$TESTTMP/clone
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
remote: changegroup2
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757
HG_NODE_LAST=f838bfaca5c7226600ebcfd84f3c3c13a28d3757
HG_PENDING=$TESTTMP/clone
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
added 2 changesets with 2 changes to 2 files
new changesets 27547f69f254:f838bfaca5c7
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56
HG_NODE_LAST=27547f69f25460a52fff66ad004e58da7ad3fb56
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=27547f69f25460a52fff66ad004e58da7ad3fb56
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757
HG_NODE_LAST=f838bfaca5c7226600ebcfd84f3c3c13a28d3757
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=f838bfaca5c7226600ebcfd84f3c3c13a28d3757
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
pullop.cgresult is 1
(run 'hg update' to get a working copy)
$ hg update
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G
@ 2:f838bfaca5c7 public test C
|
o 1:27547f69f254 public test B
|
o 0:4a2df7238c3b public test A
Add more changesets with multiple heads to the original repository
$ cd ../repo
$ echo D > D
$ hg commit -A -m D -q
$ hg up -r 1
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo E > E
$ hg commit -A -m E -q
$ echo F > F
$ hg commit -A -m F -q
$ hg up -r 1
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo G > G
$ hg commit -A -m G -q
$ hg up -r 3
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo H > H
$ hg commit -A -m H -q
$ hg log -G
@ 7:5cd59d311f65 draft test H
|
| o 6:1d14c3ce6ac0 draft test G
| |
| | o 5:7f219660301f draft test F
| | |
| | o 4:8a5212ebc852 draft test E
| |/
o | 3:b3325c91a4d9 draft test D
| |
o | 2:f838bfaca5c7 draft test C
|/
o 1:27547f69f254 draft test B
|
o 0:4a2df7238c3b draft test A
New heads are reported during transfer and properly accounted for in
pullop.cgresult
$ cd ../clone
$ hg pull
pulling from $TESTTMP/repo
searching for changes
remote: changegroup1
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e
HG_NODE_LAST=8a5212ebc8527f9fb821601504794e3eb11a1ed3
HG_PENDING=$TESTTMP/clone
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
remote: changegroup2
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46
HG_NODE_LAST=5cd59d311f6508b8e0ed28a266756c859419c9f1
HG_PENDING=$TESTTMP/clone
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
added 5 changesets with 5 changes to 5 files (+2 heads)
new changesets b3325c91a4d9:5cd59d311f65
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e
HG_NODE_LAST=8a5212ebc8527f9fb821601504794e3eb11a1ed3
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=b3325c91a4d916bcc4cdc83ea3fe4ece46a42f6e
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=8a5212ebc8527f9fb821601504794e3eb11a1ed3
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46
HG_NODE_LAST=5cd59d311f6508b8e0ed28a266756c859419c9f1
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=7f219660301fe4c8a116f714df5e769695cc2b46
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=1d14c3ce6ac0582d2809220d33e8cd7a696e0156
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=5cd59d311f6508b8e0ed28a266756c859419c9f1
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
pullop.cgresult is 3
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg log -G
o 7:5cd59d311f65 public test H
|
| o 6:1d14c3ce6ac0 public test G
| |
| | o 5:7f219660301f public test F
| | |
| | o 4:8a5212ebc852 public test E
| |/
o | 3:b3325c91a4d9 public test D
| |
@ | 2:f838bfaca5c7 public test C
|/
o 1:27547f69f254 public test B
|
o 0:4a2df7238c3b public test A
Removing a head from the original repository by merging it
$ cd ../repo
$ hg merge -r 6 -q
$ hg commit -m Merge
$ echo I > I
$ hg commit -A -m H -q
$ hg log -G
@ 9:9d18e5bd9ab0 draft test H
|
o 8:71bd7b46de72 draft test Merge
|\
| o 7:5cd59d311f65 draft test H
| |
o | 6:1d14c3ce6ac0 draft test G
| |
| | o 5:7f219660301f draft test F
| | |
+---o 4:8a5212ebc852 draft test E
| |
| o 3:b3325c91a4d9 draft test D
| |
| o 2:f838bfaca5c7 draft test C
|/
o 1:27547f69f254 draft test B
|
o 0:4a2df7238c3b draft test A
Removed heads are reported during transfer and properly accounted for in
pullop.cgresult
$ cd ../clone
$ hg pull
pulling from $TESTTMP/repo
searching for changes
remote: changegroup1
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4
HG_NODE_LAST=71bd7b46de72e69a32455bf88d04757d542e6cf4
HG_PENDING=$TESTTMP/clone
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
remote: changegroup2
adding changesets
adding manifests
adding file changes
pretxnchangegroup hook: HG_HOOKNAME=pretxnchangegroup
HG_HOOKTYPE=pretxnchangegroup
HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84
HG_NODE_LAST=9d18e5bd9ab09337802595d49f1dad0c98df4d84
HG_PENDING=$TESTTMP/clone
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
added 2 changesets with 1 changes to 1 files (-1 heads)
new changesets 71bd7b46de72:9d18e5bd9ab0
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4
HG_NODE_LAST=71bd7b46de72e69a32455bf88d04757d542e6cf4
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=71bd7b46de72e69a32455bf88d04757d542e6cf4
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
changegroup hook: HG_HOOKNAME=changegroup
HG_HOOKTYPE=changegroup
HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84
HG_NODE_LAST=9d18e5bd9ab09337802595d49f1dad0c98df4d84
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
incoming hook: HG_HOOKNAME=incoming
HG_HOOKTYPE=incoming
HG_NODE=9d18e5bd9ab09337802595d49f1dad0c98df4d84
HG_PHASES_MOVED=1
HG_SOURCE=pull
HG_TXNID=TXN:$ID$
HG_TXNNAME=pull
file:/*/$TESTTMP/repo (glob)
HG_URL=file:$TESTTMP/repo
pullop.cgresult is -2
(run 'hg update' to get a working copy)
$ hg log -G
o 9:9d18e5bd9ab0 public test H
|
o 8:71bd7b46de72 public test Merge
|\
| o 7:5cd59d311f65 public test H
| |
o | 6:1d14c3ce6ac0 public test G
| |
| | o 5:7f219660301f public test F
| | |
+---o 4:8a5212ebc852 public test E
| |
| o 3:b3325c91a4d9 public test D
| |
| @ 2:f838bfaca5c7 public test C
|/
o 1:27547f69f254 public test B
|
o 0:4a2df7238c3b public test A