--- a/mercurial/debugcommands.py Thu Feb 02 10:05:22 2017 +0100
+++ b/mercurial/debugcommands.py Thu Feb 02 10:06:01 2017 +0100
@@ -40,6 +40,7 @@
exchange,
extensions,
fileset,
+ formatter,
hg,
localrepo,
lock as lockmod,
@@ -1949,6 +1950,57 @@
ui.write(node2str(node))
ui.write('\n')
+@command('debugtemplate',
+ [('r', 'rev', [], _('apply template on changesets'), _('REV')),
+ ('D', 'define', [], _('define template keyword'), _('KEY=VALUE'))],
+ _('[-r REV]... [-D KEY=VALUE]... TEMPLATE'),
+ optionalrepo=True)
+def debugtemplate(ui, repo, tmpl, **opts):
+ """parse and apply a template
+
+ If -r/--rev is given, the template is processed as a log template and
+ applied to the given changesets. Otherwise, it is processed as a generic
+ template.
+
+ Use --verbose to print the parsed tree.
+ """
+ revs = None
+ if opts['rev']:
+ if repo is None:
+ raise error.RepoError(_('there is no Mercurial repository here '
+ '(.hg not found)'))
+ revs = scmutil.revrange(repo, opts['rev'])
+
+ props = {}
+ for d in opts['define']:
+ try:
+ k, v = (e.strip() for e in d.split('=', 1))
+ if not k:
+ raise ValueError
+ props[k] = v
+ except ValueError:
+ raise error.Abort(_('malformed keyword definition: %s') % d)
+
+ if ui.verbose:
+ aliases = ui.configitems('templatealias')
+ tree = templater.parse(tmpl)
+ ui.note(templater.prettyformat(tree), '\n')
+ newtree = templater.expandaliases(tree, aliases)
+ if newtree != tree:
+ ui.note(("* expanded:\n"), templater.prettyformat(newtree), '\n')
+
+ mapfile = None
+ if revs is None:
+ k = 'debugtemplate'
+ t = formatter.maketemplater(ui, k, tmpl)
+ ui.write(templater.stringify(t(k, **props)))
+ else:
+ displayer = cmdutil.changeset_templater(ui, repo, None, opts, tmpl,
+ mapfile, buffered=False)
+ for r in revs:
+ displayer.show(repo[r], **props)
+ displayer.close()
+
@command('debugupgraderepo', [
('o', 'optimize', [], _('extra optimization to perform'), _('NAME')),
('', 'run', False, _('performs an upgrade')),