diff options
Diffstat (limited to 'src/rebar_core.erl')
| -rw-r--r-- | src/rebar_core.erl | 103 |
1 files changed, 74 insertions, 29 deletions
diff --git a/src/rebar_core.erl b/src/rebar_core.erl index 7cf0c7a..cd5df50 100644 --- a/src/rebar_core.erl +++ b/src/rebar_core.erl @@ -85,32 +85,25 @@ parse_args(Args) -> %% Parse getopt options OptSpecList = option_spec_list(), case getopt:parse(OptSpecList, Args) of - {ok, {_Options, []}} -> - %% no command to run specified - help(), - halt(1); {ok, {Options, NonOptArgs}} -> - case proplists:get_bool(help, Options) of - true -> - %% display help - help(), - halt(0); - false -> - %% Set global variables based on getopt options - set_global_flag(Options, verbose), - set_global_flag(Options, force), - DefJobs = rebar_config:get_jobs(), - case proplists:get_value(jobs, Options, DefJobs) of - DefJobs -> - ok; - Jobs -> - rebar_config:set_global(jobs, Jobs) - end, - - %% Filter all the flags (i.e. strings of form key=value) from the - %% command line arguments. What's left will be the commands to run. - filter_flags(NonOptArgs, []) - end; + %% Check options and maybe halt execution + {ok, continue} = print_help_maybe_halt(Options, NonOptArgs), + + %% Set global variables based on getopt options + set_global_flag(Options, verbose), + set_global_flag(Options, force), + DefJobs = rebar_config:get_jobs(), + case proplists:get_value(jobs, Options, DefJobs) of + DefJobs -> + ok; + Jobs -> + rebar_config:set_global(jobs, Jobs) + end, + + %% Filter all the flags (i.e. strings of form key=value) from the + %% command line arguments. What's left will be the commands to run. + filter_flags(NonOptArgs, []); + {error, {Reason, Data}} -> ?ERROR("Error: ~s ~p~n~n", [Reason, Data]), help(), @@ -130,6 +123,31 @@ set_global_flag(Options, Flag) -> rebar_config:set_global(Flag, Value). %% +%% print help +%% +print_help_maybe_halt(Options, NonOptArgs) -> + case proplists:get_bool(help, Options) of + true -> + help(), + halt(0); + false -> + case proplists:get_bool(commands, Options) of + true -> + commands(), + halt(0); + false -> + case NonOptArgs of + [] -> + io:format("No command to run specified!~n"), + help(), + halt(1); + _ -> + {ok, continue} + end + end + end. + +%% %% print help/usage string %% help() -> @@ -140,6 +158,32 @@ help() -> {"command", "Command to run (e.g. compile)"}]). %% +%% print known commands +%% +commands() -> + io:format(<< +"analyze Analyze with Dialyzer~n" +"build_plt Build Dialyzer PLT~n" +"check_plt Check Dialyzer PLT~n" +"~n" +"clean Clean~n" +"compile Compile sources~n" +"~n" +"create template= [var=foo,...] Create skel based on template and vars~n" +"create-app Create simple app skel~n" +"create-node Create simple node skel~n" +"~n" +"generate [dump_spec=0/1] Build release with reltool~n" +"install [target=] Install build into target~n" +"~n" +"eunit [suite=foo] Run eunit [test/foo_tests.erl] tests~n" +"~n" +"int_test [suite=] [case=] Run ct suites in ./int_test~n" +"perf_test [suite=] [case=] Run ct suites in ./perf_test~n" +"test [suite=] [case=] Run ct suites in ./test~n" +>>). + +%% %% options accepted via getopt %% option_spec_list() -> @@ -149,10 +193,11 @@ option_spec_list() -> [Jobs]), [ %% {Name, ShortOpt, LongOpt, ArgSpec, HelpMsg} - {help, $h, "help", undefined, "Show the program options"}, - {verbose, $v, "verbose", undefined, "Be verbose about what gets done"}, - {force, $f, "force", undefined, "Force"}, - {jobs, $j, "jobs", integer, JobsHelp} + {help, $h, "help", undefined, "Show the program options"}, + {commands, $c, "commands", undefined, "Show available commands"}, + {verbose, $v, "verbose", undefined, "Be verbose about what gets done"}, + {force, $f, "force", undefined, "Force"}, + {jobs, $j, "jobs", integer, JobsHelp} ]. %% |