diff tests/test-command-template.t @ 28957:d813132ea361

templater: load and expand aliases by template engine (API) (issue4842)

Now template aliases are fully supported in log and formatter templates.

As I said before, aliases are not expanded in map files. This avoids possible
corruption of our stock styles and web templates. This behavior is undocumented
since no map file nor [templates] section are documented at all. Later on,
we might want to add [aliases] section to map files if it appears to be useful.

--- a/tests/test-command-template.t	Sun Apr 03 13:23:40 2016 +0900
+++ b/tests/test-command-template.t	Sun Mar 27 20:59:36 2016 +0900
@@ -3693,8 +3693,7 @@
           ('string', 'UTC')))
       ('symbol', 'isodate'))
     ('string', '\n'))
-  hg: parse error: unknown function 'utcdate'
-  [255]
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
 
   $ hg debugtemplate -vr0 '{status("A", file_adds)}'
   (template
@@ -3712,8 +3711,7 @@
         ('string', ' ')
         ('symbol', 'file')
         ('string', '\n'))))
-  hg: parse error: unknown function 'status'
-  [255]
+  A a
 
 A unary function alias can be called as a filter:
 
@@ -3735,8 +3733,28 @@
           ('string', 'UTC')))
       ('symbol', 'isodate'))
     ('string', '\n'))
-  hg: parse error: unknown function 'utcdate'
-  [255]
+  1970-01-12 13:46 +0000
+
+Aliases should be applied only to command arguments and templates in hgrc.
+Otherwise, our stock styles and web templates could be corrupted:
+
+  $ hg log -r0 -T '{rn} {utcdate(date)|isodate}\n'
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
+
+  $ hg log -r0 --config ui.logtemplate='"{rn} {utcdate(date)|isodate}\n"'
+  0:1e4e1b8f71e0 1970-01-12 13:46 +0000
+
+  $ cat <<EOF > tmpl
+  > changeset = 'nothing expanded:{rn}\n'
+  > EOF
+  $ hg log -r0 --style ./tmpl
+  nothing expanded:
+
+Aliases in formatter:
+
+  $ hg branches -T '{pad(branch, 7)} {rn}\n'
+  default 6:d41e714fe50d
+  foo     4:bbe44766e73d
 
 Unparsable alias:
 
@@ -3745,6 +3763,9 @@
     ('symbol', 'bad'))
   abort: failed to parse the definition of template alias "bad": at 2: not a prefix: end
   [255]
+  $ hg log --config templatealias.bad='x(' -T '{bad}'
+  abort: failed to parse the definition of template alias "bad": at 2: not a prefix: end
+  [255]
 
   $ cd ..