annotate tests/test-push-warn.t @ 24545:9e0c67e84896

json: implement {tags} template

Tags is pretty easy to implement. Let's start there.

The output is slightly different from `hg tags -Tjson`. For reference,
the CLI has the following output:

  [
   {
    "node": "e2049974f9a23176c2addb61d8f5b86e0d620490",
    "rev": 29880,
    "tag": "tip",
    "type": ""
   },
   ...
  ]

Our output has the format:

  {
    "node": "0aeb19ea57a6d223bacddda3871cb78f24b06510",
    "tags": [
      {
        "node": "e2049974f9a23176c2addb61d8f5b86e0d620490",
        "tag": "tag1",
        "date": [1427775457.0, 25200]
      },
      ...
    ]
  }

"rev" is omitted because it isn't a reliable identifier. We shouldn't
be exposing them in web APIs and giving the impression it remotely
resembles a stable identifier. Perhaps we could one day hide this behind
a config option (it might be useful to expose when running servers
locally).

The "type" of the tag isn't defined because this information isn't yet
exposed to the hgweb templater (it could be in a follow-up) and because
it is questionable whether different types should be exposed at all.
(Should the web interface really be exposing "local" tags?)

We use an object for the outer type instead of Array for a few reasons.
First, it is extensible. If we ever need to throw more global properties
into the output, we can do that without breaking backwards compatibility
(property additions should be backwards compatible). Second, uniformity
in web APIs is nice. Having everything return objects seems much saner than
a mix of array and object. Third, there are security issues with arrays
in older browsers. The JSON web services world almost never uses arrays
as the main type for this reason.

Another possibly controversial part about this patch is how dates are
defined. While JSON has a Date type, it is based on the JavaScript Date
type, which is widely considered a pile of garbage. It is a non-starter
for this reason.

Many of Mercurial's built-in date filters drop seconds resolution. So
that's a non-starter as well, since we want the API to be lossless where
possible. rfc3339date, rfc822date, isodatesec, and date are all lossless.
However, they each require the client to perform string parsing on top of
JSON decoding. While date parsing libraries are pretty ubiquitous, some
languages don't have them out of the box. However, pretty much every
programming language can deal with UNIX timestamps (which are just
integers or floats). So, we choose to use Mercurial's internal date
representation, which in JSON is modeled as float seconds since UNIX
epoch and an integer timezone offset from UTC (keep in mind
JavaScript/JSON models all "Numbers" as double prevision floating point
numbers, so there isn't a difference between ints and floats in JSON).

  $ hg init a
  $ cd a
  $ echo foo > t1
  $ hg add t1
  $ hg commit -m "1"

  $ cd ..
  $ hg clone a b
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd a
  $ echo foo > t2
  $ hg add t2
  $ hg commit -m "2"

  $ cd ../b
  $ echo foo > t3
  $ hg add t3
  $ hg commit -m "3"

Specifying a revset that evaluates to null will abort

  $ hg push -r '0 & 1' ../a
  pushing to ../a
  abort: specified revisions evaluate to an empty set
  (use different revision arguments)
  [255]

  $ hg push ../a
  pushing to ../a
  searching for changes
  remote has heads on branch 'default' that are not known locally: 1c9246a22a0a
  abort: push creates new remote head 1e108cc5548c!
  (pull and merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg push --debug ../a
  pushing to ../a
  query 1; heads
  searching for changes
  taking quick initial sample
  searching: 2 queries
  query 2; still undecided: 1, sample size is: 1
  2 total queries
  listing keys for "phases"
  checking for updated bookmarks
  listing keys for "bookmarks"
  listing keys for "bookmarks"
  remote has heads on branch 'default' that are not known locally: 1c9246a22a0a
  new remote heads on branch 'default':
   1e108cc5548c
  abort: push creates new remote head 1e108cc5548c!
  (pull and merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg pull ../a
  pulling from ../a
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)
  (run 'hg heads' to see heads, 'hg merge' to merge)

  $ hg push ../a
  pushing to ../a
  searching for changes
  abort: push creates new remote head 1e108cc5548c!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg commit -m "4"
  $ hg push ../a
  pushing to ../a
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 1 changes to 1 files

  $ cd ..

  $ hg init c
  $ cd c
  $ for i in 0 1 2; do
  >     echo $i >> foo
  >     hg ci -Am $i
  > done
  adding foo
  $ cd ..

  $ hg clone c d
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd d
  $ for i in 0 1; do
  >    hg co -C $i
  >    echo d-$i >> foo
  >    hg ci -m d-$i
  > done
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  created new head
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  created new head

  $ HGMERGE=true hg merge 3
  merging foo
  0 files updated, 1 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg ci -m c-d

  $ hg push ../c
  pushing to ../c
  searching for changes
  abort: push creates new remote head 6346d66eb9f5!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg push -r 2 ../c
  pushing to ../c
  searching for changes
  no changes found
  [1]

  $ hg push -r 3 ../c
  pushing to ../c
  searching for changes
  abort: push creates new remote head a5dda829a167!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg push -v -r 3 -r 4 ../c
  pushing to ../c
  searching for changes
  new remote heads on branch 'default':
   a5dda829a167
   ee8fbc7a0295
  abort: push creates new remote head a5dda829a167!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg push -v -f -r 3 -r 4 ../c
  pushing to ../c
  searching for changes
  2 changesets found
  uncompressed size of bundle content:
       308 (changelog)
       286 (manifests)
       213  foo
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files (+2 heads)

  $ hg push -r 5 ../c
  pushing to ../c
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (-1 heads)

  $ hg in ../c
  comparing with ../c
  searching for changes
  no changes found
  [1]


Issue450: push -r warns about remote head creation even if no heads
will be created

  $ hg init ../e
  $ hg push -r 0 ../e
  pushing to ../e
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

  $ hg push -r 1 ../e
  pushing to ../e
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

  $ cd ..


Issue736: named branches are not considered for detection of
unmerged heads in "hg push"

  $ hg init f
  $ cd f
  $ hg -q branch a
  $ echo 0 > foo
  $ hg -q ci -Am 0
  $ echo 1 > foo
  $ hg -q ci -m 1
  $ hg -q up 0
  $ echo 2 > foo
  $ hg -q ci -m 2
  $ hg -q up 0
  $ hg -q branch b
  $ echo 3 > foo
  $ hg -q ci -m 3
  $ cd ..

  $ hg -q clone f g
  $ cd g

Push on existing branch and new branch:

  $ hg -q up 1
  $ echo 4 > foo
  $ hg -q ci -m 4
  $ hg -q up 0
  $ echo 5 > foo
  $ hg -q branch c
  $ hg -q ci -m 5

  $ hg push ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote branches: c!
  (use 'hg push --new-branch' to create new remote branches)
  [255]

  $ hg push -r 4 -r 5 ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote branches: c!
  (use 'hg push --new-branch' to create new remote branches)
  [255]


Multiple new branches:

  $ hg -q branch d
  $ echo 6 > foo
  $ hg -q ci -m 6

  $ hg push ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote branches: c, d!
  (use 'hg push --new-branch' to create new remote branches)
  [255]

  $ hg push -r 4 -r 6 ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote branches: c, d!
  (use 'hg push --new-branch' to create new remote branches)
  [255]

  $ cd ../g


Fail on multiple head push:

  $ hg -q up 1
  $ echo 7 > foo
  $ hg -q ci -m 7

  $ hg push -r 4 -r 7 ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote head 0b715ef6ff8f on branch 'a'!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

Push replacement head on existing branches:

  $ hg -q up 3
  $ echo 8 > foo
  $ hg -q ci -m 8

  $ hg push -r 7 -r 8 ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files


Merge of branch a to other branch b followed by unrelated push
on branch a:

  $ hg -q up 7
  $ HGMERGE=true hg -q merge 8
  $ hg -q ci -m 9
  $ hg -q up 8
  $ echo 10 > foo
  $ hg -q ci -m 10

  $ hg push -r 9 ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (-1 heads)

  $ hg push -r 10 ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)


Cheating the counting algorithm:

  $ hg -q up 9
  $ HGMERGE=true hg -q merge 2
  $ hg -q ci -m 11
  $ hg -q up 1
  $ echo 12 > foo
  $ hg -q ci -m 12

  $ hg push -r 11 -r 12 ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files


Failed push of new named branch:

  $ echo 12 > foo
  $ hg -q ci -m 12a
  [1]
  $ hg -q up 11
  $ echo 13 > foo
  $ hg -q branch e
  $ hg -q ci -m 13d

  $ hg push -r 12 -r 13 ../f
  pushing to ../f
  searching for changes
  abort: push creates new remote branches: e!
  (use 'hg push --new-branch' to create new remote branches)
  [255]


Using --new-branch to push new named branch:

  $ hg push --new-branch -r 12 -r 13 ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

Pushing multi headed new branch:

  $ echo 14 > foo
  $ hg -q branch f
  $ hg -q ci -m 14
  $ echo 15 > foo
  $ hg -q ci -m 15
  $ hg -q up 14
  $ echo 16 > foo
  $ hg -q ci -m 16
  $ hg push --branch f --new-branch ../f
  pushing to ../f
  searching for changes
  abort: push creates new branch 'f' with multiple heads
  (merge or see "hg help push" for details about pushing new heads)
  [255]
  $ hg push --branch f --new-branch --force ../f
  pushing to ../f
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 1 files (+1 heads)

Checking prepush logic does not allow silently pushing
multiple new heads but also doesn't report too many heads:

  $ cd ..
  $ hg init h
  $ echo init > h/init
  $ hg -R h ci -Am init
  adding init
  $ echo a > h/a
  $ hg -R h ci -Am a
  adding a
  $ hg clone h i
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -R h up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo b > h/b
  $ hg -R h ci -Am b
  adding b
  created new head
  $ hg -R i up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > i/c
  $ hg -R i ci -Am c
  adding c
  created new head

  $ for i in `python $TESTDIR/seq.py 3`; do hg -R h up -q 0; echo $i > h/b; hg -R h ci -qAm$i; done

  $ hg -R i push h
  pushing to h
  searching for changes
  remote has heads on branch 'default' that are not known locally: 534543e22c29 764f8ec07b96 afe7cc7679f5 ce4212fc8847
  abort: push creates new remote head 97bd0c84d346!
  (pull and merge or see "hg help push" for details about pushing new heads)
  [255]
  $ hg -R h up -q 0; echo x > h/b; hg -R h ci -qAmx
  $ hg -R i push h
  pushing to h
  searching for changes
  remote has heads on branch 'default' that are not known locally: 18ddb72c4590 534543e22c29 764f8ec07b96 afe7cc7679f5 and 1 others
  abort: push creates new remote head 97bd0c84d346!
  (pull and merge or see "hg help push" for details about pushing new heads)
  [255]
  $ hg -R i push h -v
  pushing to h
  searching for changes
  remote has heads on branch 'default' that are not known locally: 18ddb72c4590 534543e22c29 764f8ec07b96 afe7cc7679f5 ce4212fc8847
  new remote heads on branch 'default':
   97bd0c84d346
  abort: push creates new remote head 97bd0c84d346!
  (pull and merge or see "hg help push" for details about pushing new heads)
  [255]


Check prepush logic with merged branches:

  $ hg init j
  $ hg -R j branch a
  marked working directory as branch a
  (branches are permanent and global, did you want a bookmark?)
  $ echo init > j/foo
  $ hg -R j ci -Am init
  adding foo
  $ hg clone j k
  updating to branch a
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo a1 > j/foo
  $ hg -R j ci -m a1
  $ hg -R k branch b
  marked working directory as branch b
  (branches are permanent and global, did you want a bookmark?)
  $ echo b > k/foo
  $ hg -R k ci -m b
  $ hg -R k up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg -R k merge b
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)

  $ hg -R k ci -m merge

  $ hg -R k push -r a j
  pushing to j
  searching for changes
  abort: push creates new remote branches: b!
  (use 'hg push --new-branch' to create new remote branches)
  [255]


Prepush -r should not allow you to sneak in new heads:

  $ hg init l
  $ cd l
  $ echo a >> foo
  $ hg -q add foo
  $ hg -q branch a
  $ hg -q ci -ma
  $ hg -q up null
  $ echo a >> foo
  $ hg -q add foo
  $ hg -q branch b
  $ hg -q ci -mb
  $ cd ..
  $ hg -q clone l m -u a
  $ cd m
  $ hg -q merge b
  $ hg -q ci -mmb
  $ hg -q up 0
  $ echo a >> foo
  $ hg -q ci -ma2
  $ hg -q up 2
  $ echo a >> foo
  $ hg -q branch -f b
  $ hg -q ci -mb2
  $ hg -q merge 3
  $ hg -q ci -mma

  $ hg push ../l -b b
  pushing to ../l
  searching for changes
  abort: push creates new remote head 451211cc22b0 on branch 'a'!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ cd ..


Check prepush with new branch head on former topo non-head:

  $ hg init n
  $ cd n
  $ hg branch A
  marked working directory as branch A
  (branches are permanent and global, did you want a bookmark?)
  $ echo a >a
  $ hg ci -Ama
  adding a
  $ hg branch B
  marked working directory as branch B
  (branches are permanent and global, did you want a bookmark?)
  $ echo b >b
  $ hg ci -Amb
  adding b

b is now branch head of B, and a topological head
a is now branch head of A, but not a topological head

  $ hg clone . inner
  updating to branch B
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd inner
  $ hg up B
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo b1 >b1
  $ hg ci -Amb1
  adding b1

in the clone b1 is now the head of B

  $ cd ..
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo a2 >a2
  $ hg ci -Ama2
  adding a2

a2 is now the new branch head of A, and a new topological head
it replaces a former inner branch head, so it should at most warn about
A, not B

glog of local:

  $ hg log -G --template "{rev}: {branches} {desc}\n"
  @  2: A a2
  |
  | o  1: B b
  |/
  o  0: A a
  
glog of remote:

  $ hg log -G -R inner --template "{rev}: {branches} {desc}\n"
  @  2: B b1
  |
  o  1: B b
  |
  o  0: A a
  
outgoing:

  $ hg out inner --template "{rev}: {branches} {desc}\n"
  comparing with inner
  searching for changes
  2: A a2

  $ hg push inner
  pushing to inner
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files (+1 heads)

  $ cd ..


Check prepush with new branch head on former topo head:

  $ hg init o
  $ cd o
  $ hg branch A
  marked working directory as branch A
  (branches are permanent and global, did you want a bookmark?)
  $ echo a >a
  $ hg ci -Ama
  adding a
  $ hg branch B
  marked working directory as branch B
  (branches are permanent and global, did you want a bookmark?)
  $ echo b >b
  $ hg ci -Amb
  adding b

b is now branch head of B, and a topological head

  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo a1 >a1
  $ hg ci -Ama1
  adding a1

a1 is now branch head of A, and a topological head

  $ hg clone . inner
  updating to branch A
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd inner
  $ hg up B
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo b1 >b1
  $ hg ci -Amb1
  adding b1

in the clone b1 is now the head of B

  $ cd ..
  $ echo a2 >a2
  $ hg ci -Ama2
  adding a2

a2 is now the new branch head of A, and a topological head
it replaces a former topological and branch head, so this should not warn

glog of local:

  $ hg log -G --template "{rev}: {branches} {desc}\n"
  @  3: A a2
  |
  o  2: A a1
  |
  | o  1: B b
  |/
  o  0: A a
  
glog of remote:

  $ hg log -G -R inner --template "{rev}: {branches} {desc}\n"
  @  3: B b1
  |
  | o  2: A a1
  | |
  o |  1: B b
  |/
  o  0: A a
  
outgoing:

  $ hg out inner --template "{rev}: {branches} {desc}\n"
  comparing with inner
  searching for changes
  3: A a2

  $ hg push inner
  pushing to inner
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files

  $ cd ..


Check prepush with new branch head and new child of former branch head
but child is on different branch:

  $ hg init p
  $ cd p
  $ hg branch A
  marked working directory as branch A
  (branches are permanent and global, did you want a bookmark?)
  $ echo a0 >a
  $ hg ci -Ama0
  adding a
  $ echo a1 >a
  $ hg ci -ma1
  $ hg up null
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg branch B
  marked working directory as branch B
  (branches are permanent and global, did you want a bookmark?)
  $ echo b0 >b
  $ hg ci -Amb0
  adding b
  $ echo b1 >b
  $ hg ci -mb1

  $ hg clone . inner
  updating to branch B
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg up A
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg branch -f B
  marked working directory as branch B
  (branches are permanent and global, did you want a bookmark?)
  $ echo a3 >a
  $ hg ci -ma3
  created new head
  $ hg up 3
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg branch -f A
  marked working directory as branch A
  (branches are permanent and global, did you want a bookmark?)
  $ echo b3 >b
  $ hg ci -mb3
  created new head

glog of local:

  $ hg log -G --template "{rev}: {branches} {desc}\n"
  @  5: A b3
  |
  | o  4: B a3
  | |
  o |  3: B b1
  | |
  o |  2: B b0
   /
  o  1: A a1
  |
  o  0: A a0
  
glog of remote:

  $ hg log -G -R inner --template "{rev}: {branches} {desc}\n"
  @  3: B b1
  |
  o  2: B b0
  
  o  1: A a1
  |
  o  0: A a0
  
outgoing:

  $ hg out inner --template "{rev}: {branches} {desc}\n"
  comparing with inner
  searching for changes
  4: B a3
  5: A b3

  $ hg push inner
  pushing to inner
  searching for changes
  abort: push creates new remote head 7d0f4fb6cf04 on branch 'A'!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg push inner -r4 -r5
  pushing to inner
  searching for changes
  abort: push creates new remote head 7d0f4fb6cf04 on branch 'A'!
  (merge or see "hg help push" for details about pushing new heads)
  [255]

  $ hg in inner
  comparing with inner
  searching for changes
  no changes found
  [1]

  $ cd ..