templates: add support for filerevision webcommand in json style

mercurial/templates/json/map

@@ -1,5 +1,20 b''
 mimetype = 'application/json'
-filerevision = '"not yet implemented"'
+filerevision = '\{
+  "node": {node|json},
+  "path": {file|json},
+  "date": {date|json},
+  "desc": {desc|utf8|json},
+  "branch": {if(branch, branch%changesetbranch, "default"|json)},
+  "bookmarks": [{join(bookmarks%changelistentryname, ", ")}],
+  "tags": [{join(tags%changelistentryname, ", ")}],
+  "user": {author|utf8|json},
+  "parents": [{join(parent%changesetparent, ", ")}],
+  "phase": {phase|json},
+  "lines": [{join(text%lineentry, ", ")}]
+  }'
+lineentry = '\{
+  "line": {line|json}
+  }'
 search = '"not yet implemented"'
 # changelog and shortlog are the same web API but with different
 # number of entries.

tests/test-hgweb-json.t

@@ -111,10 +111,33 b''
 
 file/{revision}/{path} shows file revision
 
-  $ request json-file/06e557f3edf6/foo
+  $ request json-file/78896eb0e102/foo-new
   200 Script output follows
   
-  "not yet implemented"
+  {
+    "bookmarks": [],
+    "branch": "default",
+    "date": [
+      0.0,
+      0
+    ],
+    "desc": "move foo",
+    "lines": [
+      {
+        "line": "bar\n"
+      }
+    ],
+    "node": "78896eb0e102174ce9278438a95e12543e4367a7",
+    "parents": [
+      "f8bbb9024b10f93cdbb8d940337398291d40dea8"
+    ],
+    "path": "foo-new",
+    "phase": "public",
+    "tags": [
+      "tag1"
+    ],
+    "user": "test"
+  }
 
 file/{revision} shows root directory info