exchangev2: fetch and apply phases data
Now that the server supports emitting phases data, we can request it
and apply it on the client.
Because we may receive phases-only updates from the server, we no
longer conditionally perform the "changesetdata" command depending
on whether there are revisions to fetch. In the previous wire
protocol, this case would result in us falling back to performing
"listkeys" commands to look up phases, bookmarks, etc data. But
since "changesetdata" is smart enough to handle metadata only
fetches, we can keep things consistent.
It's worth noting that because of the unified approach to changeset
data retrieval, phase handling code in wire proto v2 exchange is
drastically simpler. Contrast with all the code in exchange.py
dealing with all the variations for obtaining phases data.
Differential Revision: https://phab.mercurial-scm.org/D4484
# init
$ hg init
$ echo a > a
$ hg add a
$ hg commit -m'a'
$ echo b > b
$ hg add b
$ hg commit -m'b'
$ hg up -C 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo c > c
$ hg add c
$ hg commit -m'c'
created new head
# test merging of diverged bookmarks
$ hg bookmark -r 1 "c@diverge"
$ hg bookmark -r 1 b
$ hg bookmark c
$ hg bookmarks
b 1:d2ae7f538514
* c 2:d36c0562f908
c@diverge 1:d2ae7f538514
$ hg merge "c@diverge"
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg commit -m'merge'
$ hg bookmarks
b 1:d2ae7f538514
* c 3:b8f96cf4688b
$ hg up -C 3
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(leaving bookmark c)
$ echo d > d
$ hg add d
$ hg commit -m'd'
$ hg up -C 3
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo e > e
$ hg add e
$ hg commit -m'e'
created new head
$ hg up -C 5
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg bookmark e
$ hg bookmarks
b 1:d2ae7f538514
c 3:b8f96cf4688b
* e 5:26bee9c5bcf3
# the picked side is bookmarked
$ hg up -C 4
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(leaving bookmark e)
$ hg merge
abort: heads are bookmarked - please merge with an explicit rev
(run 'hg heads' to see all heads)
[255]
# our revision is bookmarked
$ hg up -C e
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(activating bookmark e)
$ hg merge
abort: no matching bookmark to merge - please merge with an explicit rev or bookmark
(run 'hg heads' to see all heads)
[255]
# merge bookmark heads
$ hg up -C 4
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(leaving bookmark e)
$ echo f > f
$ hg commit -Am "f"
adding f
$ hg bookmarks -r 4 "e@diverged"
$ hg up -q -C "e@diverged"
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg parents
changeset: 4:a0546fcfe0fb
bookmark: e@diverged
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: d
changeset: 5:26bee9c5bcf3
bookmark: e
parent: 3:b8f96cf4688b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: e
$ hg up -C e
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(activating bookmark e)
$ hg bookmarks
b 1:d2ae7f538514
c 3:b8f96cf4688b
* e 5:26bee9c5bcf3
e@diverged 4:a0546fcfe0fb
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg commit -m'merge'
$ hg bookmarks
b 1:d2ae7f538514
c 3:b8f96cf4688b
* e 7:ca784329f0ba
# test warning when all heads are inactive bookmarks
$ hg up -C 6
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(leaving bookmark e)
$ echo g > g
$ hg commit -Am 'g'
adding g
$ hg bookmark -i g
$ hg bookmarks
b 1:d2ae7f538514
c 3:b8f96cf4688b
e 7:ca784329f0ba
g 8:04dd21731d95
$ hg heads
changeset: 8:04dd21731d95
bookmark: g
tag: tip
parent: 6:be381d1126a0
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: g
changeset: 7:ca784329f0ba
bookmark: e
parent: 5:26bee9c5bcf3
parent: 4:a0546fcfe0fb
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: merge
$ hg merge
abort: heads are bookmarked - please merge with an explicit rev
(run 'hg heads' to see all heads)
[255]