changeset 40408:49c7b701fdc2 stable

phase: add an archived phase This phase allows for hidden changesets in the "user space". It differs from the "internal" phase which is intended for internal by-product only. There have been discussions at the 4.8 sprint to use such phase to speedup cleanup after history rewriting operation. Shipping it in the same release as the 'internal-phase' groups the associated `requires` entry. The important bit is to have support for this phase in the earliest version of mercurial possible. Adding the UI to manipulate this new phase later seems fine. The current plan for archived usage and user interface are as follow. On a repository with internal-phase on and evolution off: * history rewriting command set rewritten changeset in the archived phase. (This mean updating the cleanupnodes method). * keep `hg unbundle .hg/strip-backup/X.hg` as a way to restore changeset for now (backup bundle need to contains phase data) * [maybe] add a `hg strip --soft` advance flag (a light way to expose the feature without getting in the way of a better UI) Mercurial 4.8 freeze is too close to get the above in by then. We don't introduce a new repository `requirement` as we reuse the one introduced with the 'archived' phase during the 4.8 cycle.
author Boris Feld <boris.feld@octobus.net>
date Wed, 17 Oct 2018 14:47:01 +0200
parents 36ba91e06948
children 89703e6151e7
files mercurial/phases.py tests/test-phases.t
diffstat 2 files changed, 53 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/phases.py	Tue Oct 23 20:46:21 2018 +0900
+++ b/mercurial/phases.py	Wed Oct 17 14:47:01 2018 +0200
@@ -129,11 +129,13 @@
 # record phase index
 public, draft, secret = range(3)
 internal = INTERNAL_FLAG | HIDEABLE_FLAG
+archived = HIDEABLE_FLAG
 allphases = range(internal + 1)
 trackedphases = allphases[1:]
 # record phase names
 phasenames = [None] * len(allphases)
 phasenames[:3] = ['public', 'draft', 'secret']
+phasenames[archived] = 'archived'
 phasenames[internal] = 'internal'
 # record phase property
 mutablephases = tuple(allphases[1:])
@@ -446,8 +448,9 @@
     def _retractboundary(self, repo, tr, targetphase, nodes):
         # Be careful to preserve shallow-copied values: do not update
         # phaseroots values, replace them.
-        if targetphase == internal and not supportinternal(repo):
-            msg = 'this repository does not support the internal phase'
+        if targetphase in (archived, internal) and not supportinternal(repo):
+            name = phasenames[targetphase]
+            msg = 'this repository does not support the %s phase' % name
             raise error.ProgrammingError(msg)
 
         repo = repo.unfiltered()
--- a/tests/test-phases.t	Tue Oct 23 20:46:21 2018 +0900
+++ b/tests/test-phases.t	Wed Oct 17 14:47:01 2018 +0200
@@ -850,6 +850,10 @@
   ** ProgrammingError: this repository does not support the internal phase
       raise error.ProgrammingError(msg)
   mercurial.error.ProgrammingError: this repository does not support the internal phase
+  $ hg --config "phases.new-commit=archived" commit -m "my test archived commit" 2>&1 | grep ProgrammingError
+  ** ProgrammingError: this repository does not support the archived phase
+      raise error.ProgrammingError(msg)
+  mercurial.error.ProgrammingError: this repository does not support the archived phase
 
   $ cd ..
 
@@ -878,7 +882,8 @@
   test-debug-phase: new rev 1:  x -> 96
   test-hook-close-phase: c01c42dffc7f81223397e99652a0703f83e1c5ea:   -> internal
 
-Usual visibility rules apply when working directory parents
+The changeset is a working parent descendant.
+Per the usual visibility rules, it is made visible.
 
   $ hg log -G -l 3
   @  changeset:   1:c01c42dffc7f
@@ -904,3 +909,45 @@
      date:        Thu Jan 01 00:00:00 1970 +0000
      summary:     A
   
+
+Test for archived phase
+-----------------------
+
+Commit an archived changesets
+
+  $ echo B > B
+  $ hg add B
+  $ hg status
+  A B
+  $ hg --config "phases.new-commit=archived" commit -m "my test archived commit"
+  test-debug-phase: new rev 2:  x -> 32
+  test-hook-close-phase: 8df5997c3361518f733d1ae67cd3adb9b0eaf125:   -> archived
+
+The changeset is a working parent descendant.
+Per the usual visibility rules, it is made visible.
+
+  $ hg log -G -l 3
+  @  changeset:   2:8df5997c3361
+  |  tag:         tip
+  |  parent:      0:4a2df7238c3b
+  |  user:        test
+  |  date:        Thu Jan 01 00:00:00 1970 +0000
+  |  summary:     my test archived commit
+  |
+  o  changeset:   0:4a2df7238c3b
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     A
+  
+
+Commit is hidden as expected
+
+  $ hg up 0
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
+  $ hg log -G
+  @  changeset:   0:4a2df7238c3b
+     tag:         tip
+     user:        test
+     date:        Thu Jan 01 00:00:00 1970 +0000
+     summary:     A
+