diff tests/test-rebase-abort.t @ 44396:acbfa31cfaf2

debugmergestate: make templated

Our IntelliJ team wants to be able to read the merge state in order to
help the user resolve merge conflicts. They had so far been reading
file contents from p1() and p2() and their merge base. That is not
ideal for several reasons (merge base is not necessarily the "graft
base", renames are not handled, commands like `hg update -m` is not
handled). It will get especially bad as of my D7827. This patch makes
the output s a templated. I haven't bothered to make it complete
(e.g. merge driver states are not handled), but it's probably good
enough as a start.

I've done a web search for "debugmergestate" and I can't find any
indication that any tools currently rely on its output. If it turns
out that we get bug reports for it once this is released, I won't
object to backing this patch out on the stable branch (and then
perhaps replace it by a separate command, or put it behind a new
flag).

The changes in test-backout.t are interesting, in particular this:

```
  -    other path: foo (node not stored in v1 format)
  +    other path:  (node foo)
```

I wonder if that means that we actually read v1 format
incorrectly. That seems to be an old format that was switched away
from in 2014, so it doesn't matter now anyway.

Differential Revision: https://phab.mercurial-scm.org/D8120

--- a/tests/test-rebase-abort.t	Thu Feb 13 21:55:38 2020 -0800
+++ b/tests/test-rebase-abort.t	Thu Feb 13 21:14:20 2020 -0800
@@ -88,18 +88,13 @@
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -x
   $ hg debugmergestate
-  * version 2 records
-  local: 3e046f2ecedb793b97ed32108086edd1a162f8bc
-  other: 46f0b057b5c061d276b91491c22151f78698abd2
-  labels:
-    local: dest
-    other: source
-  unrecognized entry: x	advisory record
-  file extras: common (ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c)
-  file: common (record type "F", state "u", hash 94c8c21d08740f5da9eaa38d1f175c592692f0d1)
-    local path: common (flags "")
+  local (dest): 3e046f2ecedb793b97ed32108086edd1a162f8bc
+  other (source): 46f0b057b5c061d276b91491c22151f78698abd2
+  file: common (state "u")
+    local path: common (hash 94c8c21d08740f5da9eaa38d1f175c592692f0d1, flags "")
     ancestor path: common (node de0a666fdd9c1a0b0698b90d85064d8bd34f74b6)
     other path: common (node 2f6411de53677f6f1048fef5bf888d67a342e0a5)
+    extra: ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c
   $ hg resolve -l
   U common
 
@@ -107,18 +102,9 @@
 
   $ hg --config extensions.fakemergerecord=$TESTDIR/fakemergerecord.py fakemergerecord -X
   $ hg debugmergestate
-  * version 2 records
-  local: 3e046f2ecedb793b97ed32108086edd1a162f8bc
-  other: 46f0b057b5c061d276b91491c22151f78698abd2
-  labels:
-    local: dest
-    other: source
-  file extras: common (ancestorlinknode = 3163e20567cc93074fbb7a53c8b93312e59dbf2c)
-  file: common (record type "F", state "u", hash 94c8c21d08740f5da9eaa38d1f175c592692f0d1)
-    local path: common (flags "")
-    ancestor path: common (node de0a666fdd9c1a0b0698b90d85064d8bd34f74b6)
-    other path: common (node 2f6411de53677f6f1048fef5bf888d67a342e0a5)
-  unrecognized entry: X	mandatory record
+  abort: unsupported merge state records: X
+  (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)
+  [255]
   $ hg resolve -l
   abort: unsupported merge state records: X
   (see https://mercurial-scm.org/wiki/MergeStateRecords for more information)