For protocol buffer files, when there were gpb options to alter the
module name with prefix or suffix, recompilation was not properly
detected. This is now fixed. (Issue #384).
Use the rebar_base_compiler's ability to specify both source and
target file names, to be able to also support prefixes.
This also introduces a call to gpb_compile:format_error, so the xref
recipe needs to be updated to ignore it, to avoid false errors.
This adds the config option {proto_compiler,gpb} for selecting gpb
as the compiler for protocol buffer files. When gpb is used as
compiler, it reads the gpb_opts config item for options.
1. manually insert directory entries to work around issues fixed in
R15B02 erl_prim_loader
2. put the escript archive's beams in appname/appname/ebin
Tested with R13B03 and R15B01.
Rebar has support for optional compilers built-in. These compilers might
not be installed causing xref to return errors for the undefined external
function calls query. The updated filter list will catch this error and
act as a nop if they are installed.
The custom queries are configured in rebar.config via the tuple
{xref_queries, [{query(), query_result()},...]}. The implementation
passes the query() string to xref:q and compares the return value with
query_result(). It will result in an error if they do not match.
The following configuration, for example, is the same as running the
xref check undefined_function_calls. It additionally filters
ejabberd_logger:*_msg/4 from the result as these functions are generated
on execution by ejabberd and not available at compile time.
{xref_queries, [{"(XC - UC) || (XU - X - B -
(\"ejabberd_logger\":\".*_msg\"/\"4\"))",[]}]}.
This patch also modifies the build process of this package by running a
custom query instead of doing a diff against a static xref_warning file.
