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authorEvax Software <contact@evax.fr>2013-09-19 07:11:37 +0200
committerEvax Software <contact@evax.fr>2013-09-19 07:11:37 +0200
commit2970fab4b743db658b395d7c0f3635df2592fd4f (patch)
tree3813a3eafc27a2825981cc57070024366616247d /src
parent620c4b01c6e59d47e92ea069f8510b8cb482ebae (diff)
Support conditional template instructions
Diffstat (limited to 'src')
-rw-r--r--src/rebar_templater.erl21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/rebar_templater.erl b/src/rebar_templater.erl
index e997975..b8f7087 100644
--- a/src/rebar_templater.erl
+++ b/src/rebar_templater.erl
@@ -347,6 +347,10 @@ write_file(Output, Data, Force) ->
{error, exists}
end.
+prepend_instructions(Instructions, Rest) when is_list(Instructions) ->
+ Instructions ++ Rest;
+prepend_instructions(Instruction, Rest) ->
+ [Instruction|Rest].
%%
%% Execute each instruction in a template definition file.
@@ -364,6 +368,23 @@ execute_template(_Files, [], _TemplateType, _TemplateName,
?ERROR("One or more files already exist on disk and "
"were not generated:~n~s~s", [Msg , Help])
end;
+execute_template(Files, [{'if', Cond, True} | Rest], TemplateType,
+ TemplateName, Context, Force, ExistingFiles) ->
+ execute_template(Files, [{'if', Cond, True, []}|Rest], TemplateType,
+ TemplateName, Context, Force, ExistingFiles);
+execute_template(Files, [{'if', Cond, True, False} | Rest], TemplateType,
+ TemplateName, Context, Force, ExistingFiles) ->
+ Instructions = case dict:find(Cond, Context) of
+ {ok, true} ->
+ True;
+ {ok, "true"} ->
+ True;
+ _ ->
+ False
+ end,
+ execute_template(Files, prepend_instructions(Instructions, Rest),
+ TemplateType, TemplateName, Context, Force,
+ ExistingFiles);
execute_template(Files, [{template, Input, Output} | Rest], TemplateType,
TemplateName, Context, Force, ExistingFiles) ->
InputName = filename:join(filename:dirname(TemplateName), Input),