[PATCH 2 of 4 V2] subrepo: use subrepo shortid method to generate subrepo diverged promptchoice

[Angel Ezquerra]

# HG changeset patch
# User Angel Ezquerra <angel.ezquerra at gmail.com>
# Date 1399414402 -7200
#      Wed May 07 00:13:22 2014 +0200
# Node ID e2a1cd702ae0871c5d3269bedb82db857804d316
# Parent  fbd38caed1830c15ed744fe85ee6442aaf11936f
subrepo: use subrepo shortid method to generate subrepo diverged promptchoice

We were always using only the first 12 characters of the subrepo revision id
when generating the "subrepo diverged" promptchoice. This is not necessarily
correct for non mercurial subrepos.

diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -205,12 +205,13 @@
                 sm[s] = r
             else:
                 debug(s, "both sides changed")
+                srepo = wctx.sub(s)
                 option = repo.ui.promptchoice(
                     _(' subrepository %s diverged (local revision: %s, '
                       'remote revision: %s)\n'
                       '(M)erge, keep (l)ocal or keep (r)emote?'
                       '$$ &Merge $$ &Local $$ &Remote')
-                    % (s, l[1][:12], r[1][:12]), 0)
+                    % (s, srepo.shortid(l[1]), srepo.shortid(r[1])), 0)
                 if option == 0:
                     wctx.sub(s).merge(r)
                     sm[s] = l
diff --git a/tests/test-subrepo-git.t b/tests/test-subrepo-git.t
--- a/tests/test-subrepo-git.t
+++ b/tests/test-subrepo-git.t
@@ -155,7 +155,7 @@
   added 1 changesets with 1 changes to 1 files (+1 heads)
   (run 'hg heads' to see heads, 'hg merge' to merge)
   $ hg merge 2>/dev/null
-   subrepository s diverged (local revision: 796959400868, remote revision: aa84837ccfbd)
+   subrepository s diverged (local revision: 7969594, remote revision: aa84837)
   (M)erge, keep (l)ocal or keep (r)emote? m
   pulling subrepo s from $TESTTMP/gitroot
   0 files updated, 0 files merged, 0 files removed, 0 files unresolved
@@ -464,7 +464,7 @@
   da5f5b1d8ffcf62fb8327bcd3c89a4367a6018e7
   $ cd ..
   $ hg update 4
-   subrepository s diverged (local revision: da5f5b1d8ffc, remote revision: aa84837ccfbd)
+   subrepository s diverged (local revision: da5f5b1, remote revision: aa84837)
   (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (da5f5b1) or (r)emote source (aa84837)?
@@ -491,7 +491,7 @@
   HEAD is now at aa84837... f
   $ cd ..
   $ hg update 1
-   subrepository s diverged (local revision: 32a343883b74, remote revision: da5f5b1d8ffc)
+   subrepository s diverged (local revision: 32a3438, remote revision: da5f5b1)
   (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ (in checked out version)
   use (l)ocal source (32a3438) or (r)emote source (da5f5b1)?
@@ -514,7 +514,7 @@
   $ hg id -n
   1+
   $ hg update 7
-   subrepository s diverged (local revision: 32a343883b74, remote revision: 32a343883b74)
+   subrepository s diverged (local revision: 32a3438, remote revision: 32a3438)
   (M)erge, keep (l)ocal or keep (r)emote? m
    subrepository sources for s differ
   use (l)ocal source (32a3438) or (r)emote source (32a3438)?