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Support reading mustache 'lists' from files

This commit add support for reading mustache 'lists' from files, so you
can use the list section functionality when templating things.

An example of the list syntax is as follows:

{package_commands, {list, [[{name, "riak"}], [{name, "riak-admin"}], [{name, "search-cmd"}]]}}.

Then you can, for each of the list elements, render some text:

{{#package_commands}}
chmod +x bin/{{name}}
{{/package_commands}}
pull/3/head
Andrew Thompson 12年前
コミット
ee8919420d
1個のファイルの変更17行の追加7行の削除
  1. +17
    -7
      src/rebar_templater.erl

+ 17
- 7
src/rebar_templater.erl ファイルの表示

@ -81,6 +81,9 @@ resolve_variables([], Dict) ->
resolve_variables([{Key, Value0} | Rest], Dict) when is_list(Value0) ->
Value = render(list_to_binary(Value0), Dict),
resolve_variables(Rest, dict:store(Key, Value, Dict));
resolve_variables([{Key, {list, Dicts}} | Rest], Dict) when is_list(Dicts) ->
%% just un-tag it so mustache can use it
resolve_variables(Rest, dict:store(Key, Dicts, Dict));
resolve_variables([_Pair | Rest], Dict) ->
resolve_variables(Rest, Dict).
@ -134,14 +137,14 @@ create1(Config, TemplateId) ->
undefined ->
Context0;
File ->
case file:consult(File) of
{ok, Terms} ->
%% TODO: Cleanup/merge with similar code in rebar_reltool
M = fun(_Key, _Base, Override) -> Override end,
dict:merge(M, Context0, dict:from_list(Terms));
case consult(load_file([], file, File)) of
{error, Reason} ->
?ABORT("Unable to load template_vars from ~s: ~p\n",
[File, Reason])
[File, Reason]);
Terms ->
%% TODO: Cleanup/merge with similar code in rebar_reltool
M = fun(_Key, _Base, Override) -> Override end,
dict:merge(M, Context0, dict:from_list(Terms))
end
end,
@ -275,7 +278,7 @@ consult(Cont, Str, Acc) ->
case Result of
{ok, Tokens, _} ->
{ok, Term} = erl_parse:parse_term(Tokens),
consult([], Remaining, [Term | Acc]);
consult([], Remaining, [maybe_dict(Term) | Acc]);
{eof, _Other} ->
lists:reverse(Acc);
{error, Info, _} ->
@ -286,6 +289,13 @@ consult(Cont, Str, Acc) ->
end.
maybe_dict({Key, {list, Dicts}}) ->
%% this is a 'list' element; a list of lists representing dicts
{Key, {list, [dict:from_list(D) || D <- Dicts]}};
maybe_dict(Term) ->
Term.
write_file(Output, Data, Force) ->
%% determine if the target file already exists
FileExists = filelib:is_regular(Output),

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