convert: add svnrev, svnpath and svnuuid template keywords

  $ hg -R A-hg log --template '{rev} {svnuuid}{svnpath}@{svnrev}\n'
  10 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@10

hgext/convert/__init__.py

@@ -10,7 +10,7 b''
 import convcmd
 import cvsps
 import subversion
-from mercurial import commands
+from mercurial import commands, templatekw
 from mercurial.i18n import _
 
 # Commands definition was moved elsewhere to ease demandload job.
@@ -334,3 +334,31 b' cmdtable = {'
          ],
          _('hg debugcvsps [OPTION]... [PATH]...')),
 }
+
+def kwconverted(ctx, name):
+    rev = ctx.extra().get('convert_revision', '')
+    if rev.startswith('svn:'):
+        if name == 'svnrev':
+            return str(subversion.revsplit(rev)[2])
+        elif name == 'svnpath':
+            return subversion.revsplit(rev)[1]
+        elif name == 'svnuuid':
+            return subversion.revsplit(rev)[0]
+    return rev
+
+def kwsvnrev(repo, ctx, **args):
+    """:svnrev: String. Converted subversion revision number."""
+    return kwconverted(ctx, 'svnrev')
+
+def kwsvnpath(repo, ctx, **args):
+    """:svnpath: String. Converted subversion revision project path."""
+    return kwconverted(ctx, 'svnpath')
+
+def kwsvnuuid(repo, ctx, **args):
+    """:svnuuid: String. Converted subversion revision repository identifier."""
+    return kwconverted(ctx, 'svnuuid')
+
+def extsetup(ui):
+    templatekw.keywords['svnrev'] = kwsvnrev
+    templatekw.keywords['svnpath'] = kwsvnpath
+    templatekw.keywords['svnuuid'] = kwsvnuuid

tests/test-convert-svn-branches.t

@@ -32,6 +32,21 b' Convert trunk and branches'
   1 move back to old
   0 last change to a
 
+Test template keywords
+
+  $ hg -R A-hg log --template '{rev} {svnuuid}{svnpath}@{svnrev}\n'
+  10 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@10
+  9 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old@9
+  8 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old2@8
+  7 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old@7
+  6 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@6
+  5 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old@6
+  4 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old@5
+  3 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@4
+  2 644ede6c-2b81-4367-9dc8-d786514f2cde/branches/old@3
+  1 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@2
+  0 644ede6c-2b81-4367-9dc8-d786514f2cde/trunk@1
+
 Convert again
 
   $ hg convert --branchmap=branchmap --datesort svn-repo A-hg