3 Examples
3.1
Start and stop windows and servers
The main process in Reltool is the server. It can be used as it is or be used via the GUI frontend process. When the GUI is started, a server process will automatically be started. The GUI process is started with reltool:start/0, reltool:start/1 or reltool:start_link/1. The pid of its server can be obtained with reltool:get_server/1
Erlang/OTP 20 [erts-9.0] [source-c13b302] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10]
[hipe] [kernel-poll:false]
Eshell V9.0 (abort with ^G)
1>
1> {ok, Win} = reltool:start([]).
{ok,<0.36.01>}
2> {ok, Server} = reltool:get_server(Win).
{ok,<0.37.01>}
3> reltool:get_config(Server).
{ok,{sys,[]}}
4>
4> {ok, Server2} = reltool:start_server([]).
{ok,<0.6535.01>}
5> reltool:get_config(Server2).
{ok,{sys,[]}}
6> reltool:stop(Server2).
ok
3.2
Inspecting the configuration
Erlang/OTP 20 [erts-9.0] [source-c13b302] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10]
[hipe] [kernel-poll:false]
Eshell V9.0 (abort with ^G)
1>
1> Config = {sys, [{escript, "examples/display_args", [{incl_cond, include}]},
{app, inets, [{incl_cond, include}]},
{app, mnesia, [{incl_cond, exclude}]},
{app, ssl, [{incl_cond, exclude}]},
{app, runtime_tools, [{incl_cond, exclude}]},
{app, syntax_tools, [{incl_cond, exclude}]}]}.
{sys,[{escript,"examples/display_args",[{incl_cond,include}]},
{app,inets,[{incl_cond,include}]},
{app,mnesia,[{incl_cond,exclude}]},
{app,ssl,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,syntax_tools,[{incl_cond,exclude}]}]}
2>
2> {ok, Server} = reltool:start_server([Config]).
{ok,<0.66.0>}
3>
3> reltool:get_config(Server).
{ok,{sys,[{escript,"/usr/local/lib/erlang/lib/reltool-0.7.3/examples/display_args",
[{incl_cond,include}]},
{app,inets,[{incl_cond,include}]},
{app,mnesia,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,ssl,[{incl_cond,exclude}]},
{app,syntax_tools,[{incl_cond,exclude}]}]}}
4>
4> reltool:get_config(Server, false, false).
{ok,{sys,[{escript,"/usr/local/lib/erlang/lib/reltool-0.7.3/examples/display_args",
[{incl_cond,include}]},
{app,inets,[{incl_cond,include}]},
{app,mnesia,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,ssl,[{incl_cond,exclude}]},
{app,syntax_tools,[{incl_cond,exclude}]}]}}
5>
5> reltool:get_config(Server, true, false).
{ok,{sys,[{root_dir,"/usr/local/lib/erlang"},
{lib_dirs,[]},
{escript,"/usr/local/lib/erlang/lib/reltool-0.7.3/examples/display_args",
[{incl_cond,include}]},
{mod_cond,all},
{incl_cond,derived},
{app,inets,
[{incl_cond,include},{vsn,undefined},{lib_dir,undefined}]},
{app,mnesia,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,ssl,[{incl_cond,exclude}]},
{app,syntax_tools,[{incl_cond,exclude}]},
{boot_rel,"start_clean"},
{rel,"start_clean","1.0",[]},
{rel,"start_sasl","1.0",[sasl]},
{emu_name,"beam"},
{relocatable,true},
{profile,development},
{incl_sys_filters,[".*"]},
{excl_sys_filters,[]},
{incl_app_filters,[".*"]},
{excl_app_filters,[]},
{rel_app_type,...},
{...}|...]}}
6>
6> reltool:get_config(Server, true, true).
{ok,{sys,[{root_dir,"/usr/local/lib/erlang"},
{lib_dirs,[]},
{escript,"/usr/local/lib/erlang/lib/reltool-0.7.3/examples/display_args",
[{incl_cond,include}]},
{mod_cond,all},
{incl_cond,derived},
{erts,[{app,erts,
[{vsn,"10.0"},
{lib_dir,"/usr/local/lib/erlang/lib/erts-10.0"},
{mod,erl_prim_loader,[]},
{mod,erl_tracer,[]},
{mod,erlang,[]},
{mod,erts_code_purger,[]},
{mod,erts_dirty_process_signal_handler,[]},
{mod,erts_internal,[]},
{mod,erts_literal_area_collector,[]},
{mod,init,[]},
{mod,erl_init,...},
{mod,...},
{...}|...]}]},
{app,compiler,
[{vsn,"7.0.4"},
{lib_dir,"/usr/local/lib/erlang/lib/compiler-7.0.4"},
{mod,beam_a,[]},
{mod,beam_asm,[]},
{mod,beam_block,[]},
{mod,beam_bs,[]},
{mod,beam_bsm,[]},
{mod,beam_clean,[]},
{mod,beam_dead,[]},
{mod,beam_dict,[]},
{mod,beam_disasm,[]},
{mod,beam_except,[]},
{mod,beam_flatten,...},
{mod,...},
{...}|...]},
{app,crypto,
[{vsn,"3.7.4"},
{lib_dir,"/usr/local/lib/erlang/lib/crypto-3.7.4"},
{mod,crypto,[]},
{mod,crypto_ec_curves,[]}]},
{app,hipe,
[{vsn,"3.15.4"},
{lib_dir,"/usr/local/lib/erlang/lib/hipe-3.15.4"},
{mod,cerl_cconv,[]},
{mod,cerl_closurean,[]},
{mod,cerl_hipeify,[]},
{mod,cerl_lib,[]},
{mod,cerl_messagean,[]},
{mod,cerl_pmatch,[]},
{mod,cerl_prettypr,[]},
{mod,cerl_to_icode,[]},
{mod,cerl_typean,...},
{mod,...},
{...}|...]},
{app,inets,
[{incl_cond,include},
{vsn,"6.3.9"},
{lib_dir,"/usr/local/lib/erlang/lib/inets-6.3.9"},
{mod,ftp,[]},
{mod,ftp_progress,[]},
{mod,ftp_response,[]},
{mod,ftp_sup,[]},
{mod,http_chunk,[]},
{mod,http_request,[]},
{mod,http_response,...},
{mod,...},
{...}|...]},
{app,kernel,
[{vsn,"5.2"},
{lib_dir,"/usr/local/lib/erlang/lib/kernel-5.2"},
{mod,application,[]},
{mod,application_controller,[]},
{mod,application_master,[]},
{mod,application_starter,[]},
{mod,auth,[]},
{mod,code,[]},
{mod,code_server,...},
{mod,...},
{...}|...]},
{app,mnesia,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,sasl,
[{vsn,"3.0.3"},
{lib_dir,"/usr/local/lib/erlang/lib/sasl-3.0.3"},
{mod,alarm_handler,[]},
{mod,erlsrv,[]},
{mod,format_lib_supp,[]},
{mod,misc_supp,...},
{mod,...},
{...}|...]},
{app,ssl,[{incl_cond,exclude}]},
{app,stdlib,
[{vsn,"3.3"},
{lib_dir,"/usr/local/lib/erlang/lib/stdlib-3.3"},
{mod,array,[]},
{mod,base64,...},
{mod,...},
{...}|...]},
{app,syntax_tools,[{incl_cond,exclude}]},
{app,tools,
[{vsn,"2.9.1"},{lib_dir,[...]},{mod,...},{...}|...]},
{boot_rel,"start_clean"},
{rel,"start_clean","1.0",[]},
{rel,"start_sasl","1.0",[...]},
{emu_name,"beam"},
{relocatable,true},
{profile,...},
{...}|...]}}
7>
7> reltool:get_config([{sys, [{profile, embedded}]}], true, false).
{ok,{sys,[{root_dir,"/usr/local/lib/erlang"},
{lib_dirs,[]},
{mod_cond,all},
{incl_cond,derived},
{boot_rel,"start_clean"},
{rel,"start_clean","1.0",[]},
{rel,"start_sasl","1.0",[sasl]},
{emu_name,"beam"},
{relocatable,true},
{profile,embedded},
{incl_sys_filters,["^bin","^erts","^lib","^releases"]},
{excl_sys_filters,["^bin/(erlc|dialyzer|typer)(|\\.exe)$",
"^erts.*/bin/(erlc|dialyzer|typer)(|\\.exe)$",
"^erts.*/bin/.*(debug|pdb)"]},
{incl_app_filters,["^ebin","^include","^priv"]},
{excl_app_filters,[]},
{rel_app_type,permanent},
{embedded_app_type,load},
{app_file,keep},
{debug_info,keep}]}}
8>
8> reltool:get_config([{sys, [{profile, standalone}]}], true, false).
{ok,{sys,[{root_dir,"/usr/local/lib/erlang"},
{lib_dirs,[]},
{mod_cond,all},
{incl_cond,derived},
{boot_rel,"start_clean"},
{rel,"start_clean","1.0",[]},
{rel,"start_sasl","1.0",[sasl]},
{emu_name,"beam"},
{relocatable,true},
{profile,standalone},
{incl_sys_filters,["^bin/(erl|epmd)(|\\.exe|\\.ini)$",
"^bin/start(|_clean).boot$","^erts.*/bin","^lib$"]},
{excl_sys_filters,["^erts.*/bin/(erlc|dialyzer|typer)(|\\.exe)$",
"^erts.*/bin/(start|escript|to_erl|run_erl)(|\\.exe)$",
"^erts.*/bin/.*(debug|pdb)"]},
{incl_app_filters,["^ebin","^priv"]},
{excl_app_filters,["^ebin/.*\\.appup$"]},
{rel_app_type,permanent},
{app_file,keep},
{debug_info,keep}]}}
3.3
Generate release and script files
Erlang/OTP 20 [erts-10.0] [source-c13b302] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10]
[hipe] [kernel-poll:false]
Eshell V10.0 (abort with ^G)
1>
1> {ok, Server} = reltool:start_server([{config,
{sys,
[{boot_rel, "NAME"},
{rel, "NAME", "VSN",
[sasl],
[{load_dot_erlang, false}]}]}}]).
{ok,<0.1288.0>}
2>
2> reltool:get_config(Server).
{ok,{sys,[{boot_rel,"NAME"},
{rel,"NAME","VSN",[sasl]}]}}
3>
3> reltool:get_rel(Server, "NAME").
{ok,{release,{"NAME","VSN"},
{erts,"10.0"},
[{kernel,"5.2"},{stdlib,"3.3"},{sasl,"3.0.3"}]}}
4>
4> reltool:get_script(Server, "NAME").
{ok,{script,{"NAME","VSN"},
[{preLoaded,[erl_prim_loader,erl_tracer,erlang,
erts_code_purger,erts_dirty_process_signal_handler,
erts_internal,erts_literal_area_collector,init,erl_init,
prim_eval,prim_file,prim_inet,prim_zip,zlib]},
{progress,preloaded},
{path,["$ROOT/lib/kernel-5.2/ebin",
"$ROOT/lib/stdlib-3.3/ebin"]},
{primLoad,[error_handler]},
{kernel_load_completed},
{progress,kernel_load_completed},
{path,["$ROOT/lib/kernel-5.2/ebin"]},
{primLoad,[application,application_controller,
application_master,application_starter,auth,code,
code_server,disk_log,disk_log_1,disk_log_server,
disk_log_sup,dist_ac,dist_util,erl_boot_server|...]},
{path,["$ROOT/lib/stdlib-3.3/ebin"]},
{primLoad,[array,base64,beam_lib,binary,c,calendar,dets,
dets_server,dets_sup,dets_utils,dets_v9,dict|...]},
{path,["$ROOT/lib/sasl-3.0.3/ebin"]},
{primLoad,[alarm_handler,erlsrv,format_lib_supp,misc_supp,
rb,rb_format_supp,release_handler,release_handler_1,sasl,
sasl_report|...]},
{progress,modules_loaded},
{path,["$ROOT/lib/kernel-5.2/ebin",
"$ROOT/lib/stdlib-3.3/ebin","$ROOT/lib/sasl-3.0.3/ebin"]},
{kernelProcess,heart,{heart,start,[]}},
{kernelProcess,error_logger,{error_logger,start_link,[]}},
{kernelProcess,application_controller,
{application_controller,start,[{...}]}},
{progress,init_kernel_started},
{apply,{application,load,[...]}},
{apply,{application,load,...}},
{progress,applications_loaded},
{apply,{...}},
{apply,...},
{...}|...]}}
5>
5> reltool:stop(Server).
ok
3.4
Create a target system
Erlang/OTP 20 [erts-10.0] [source-c13b302] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10]
[hipe] [kernel-poll:false]
Eshell V10.0 (abort with ^G)
1>
1> Config = {sys, [{escript, "examples/display_args", [{incl_cond, include}]},
{app, inets, [{incl_cond, include}]},
{app, mnesia, [{incl_cond, exclude}]},
{app, ssl, [{incl_cond, exclude}]},
{app, runtime_tools, [{incl_cond, exclude}]},
{app, syntax_tools, [{incl_cond, exclude}]}]}.
{sys,[{escript,"examples/display_args",[{incl_cond,include}]},
{app,inets,[{incl_cond,include}]},
{app,mnesia,[{incl_cond,exclude}]},
{app,ssl,[{incl_cond,exclude}]},
{app,runtime_tools,[{incl_cond,exclude}]},
{app,syntax_tools,[{incl_cond,exclude}]}]}
2>
2> {ok, Spec} = reltool:get_target_spec([Config]).
{ok,[{create_dir,"releases",
[{write_file,"start_erl.data","10.0 1.0\n"},
{create_dir,"1.0",
[{write_file,"start_clean.rel",
[37,37,32,114,101,108,32,103,101,110,101,114,97,116|...]},
{write_file,"start_clean.script",
[37,37,32,115,99,114,105,112,116,32,103,101,110|...]},
{write_file,"start_clean.boot",
<<131,104,3,119,6,115,99,114,105,112,116,104,...>>},
{write_file,"start_sasl.rel",
[37,37,32,114,101,108,32,103,101,110,101|...]},
{write_file,"start_sasl.script",
[37,37,32,115,99,114,105,112,116,32|...]},
{write_file,"start_sasl.boot",
<<131,104,3,119,6,115,99,114,105,...>>}]}]},
{create_dir,"bin",
[{copy_file,"display_args.escript",
"/usr/local/lib/erlang/lib/reltool-0.7.3/examples/display_args"},
{copy_file,"display_args","erts-10.0/bin/escript"},
{copy_file,"start","erts-10.0/bin/start"},
{copy_file,"ct_run","erts-10.0/bin/ct_run"},
{copy_file,"dialyzer","erts-10.0/bin/dialyzer"},
{copy_file,"run_erl","erts-10.0/bin/run_erl"},
{copy_file,"erl","erts-10.0/bin/dyn_erl"},
{copy_file,"to_erl","erts-10.0/bin/to_erl"},
{copy_file,"epmd","erts-10.0/bin/epmd"},
{copy_file,"erlc","erts-10.0/bin/erlc"},
{copy_file,"typer","erts-10.0/bin/typer"},
{copy_file,"escript","erts-10.0/bin/escript"},
{write_file,"start_clean.boot",<<131,104,3,119,6,115,...>>},
{write_file,"start_sasl.boot",<<131,104,3,119,6,...>>},
{write_file,"start.boot",<<131,104,3,119,...>>}]},
{copy_file,"Install"},
{create_dir,"misc",
[{copy_file,"makewhatis"},{copy_file,"format_man_pages"}]},
{create_dir,"usr",
[{create_dir,"lib",
[{copy_file,"liberl_interface_st.a"},
{copy_file,"libic.a"},
{copy_file,"liberl_interface.a"},
{copy_file,"libei_st.a"},
{copy_file,"libei.a"}]},
{create_dir,"include",
[{copy_file,"driver_int.h"},
{copy_file,"ei_connect.h"},
{copy_file,"ei.h"},
{copy_file,"erl_nif_api_funcs.h"},
{copy_file,"erl_fixed_size_int_types.h"},
{copy_file,"erl_int_sizes_config.h"},
{copy_file,"erl_interface.h"},
{copy_file,"eicode.h"},
{copy_file,"erl_driver.h"},
{copy_file,"erlang.idl"},
{copy_file,[...]},
{copy_file,...},
{...}]}]},
{create_dir,"erts-10.0",
[{create_dir,"bin",
[{copy_file,"start"},
{copy_file,"ct_run"},
{copy_file,"erlexec"},
{copy_file,"dialyzer"},
{copy_file,"beam.smp"},
{copy_file,"run_erl"},
{copy_file,"erl","erts-10.0/bin/dyn_erl"},
{copy_file,"to_erl"},
{copy_file,"epmd"},
{copy_file,"erl_child_setup"},
{copy_file,"heart"},
{copy_file,[...]},
{copy_file,...},
{...}|...]},
{create_dir,"lib",
[{create_dir,"internal",
[{copy_file,"liberts_internal.a"},
{copy_file,"liberts_internal_r.a"},
{copy_file,"libethread.a"},
{copy_file,"README"}]},
]},
{create_dir,"src",[{copy_file,"setuid_socket_wrap.c"}]},
{create_dir,"doc",[]},
{create_dir,"man",[]},
{create_dir,"include",
[{create_dir,"internal",
[{create_dir,"i386",[{...}|...]},
{copy_file,"erl_errno.h"},
{copy_file,[...]},
{copy_file,...},
{...}|...]},
{copy_file,"driver_int.h"},
{copy_file,"erl_nif_api_funcs.h"},
{copy_file,"erl_fixed_size_int_types.h"},
{copy_file,"erl_int_sizes_config.h"},
{copy_file,[...]},
{copy_file,...},
{...}]}]},
{create_dir,"lib",
[{create_dir,"compiler-7.0.4",
[{create_dir,"src",
[{copy_file,"beam_flatten.erl"},
{copy_file,[...]},
{copy_file,...},
{...}|...]},
{create_dir,"ebin",
[{copy_file,[...]},{copy_file,...},{...}|...]}]},
{create_dir,"crypto-3.7.4",
[{create_dir,"src",[{copy_file,[...]},{copy_file,...}]},
{create_dir,"ebin",[{copy_file,...},{...}|...]}]},
{create_dir,"crypto-3.7.4",
[{create_dir,"priv",
[{create_dir,"lib",[{copy_file,[...]},{copy_file,...}]},
{create_dir,"obj",[{copy_file,...},{...}|...]}]}]},
{create_dir,"erts-10.0",
[{create_dir,"src",[{...}|...]},
{create_dir,"ebin",[...]}]},
{create_dir,"hipe-3.15.4",
[{create_dir,"flow",[...]},
{copy_file,[...]},
{create_dir,...},
{...}|...]},
{create_dir,"inets-6.3.9",
[{create_dir,[...],...},{create_dir,...},{...}]},
{create_dir,"inets-6.3.9",
[{create_dir,"priv",[{create_dir,[...],...}]},
{create_dir,"include",[{copy_file,...},{...}]}]},
{create_dir,"kernel-5.2",[{...}|...]},
{create_dir,"kernel-5.2",
[{create_dir,"include",[{...}|...]}]},
{create_dir,[...],...},
{create_dir,...},
{create_dir,"stdlib-3.3",[{create_dir,...}]},
...]}]}
3>
3> TargetDir = "/tmp/my_target_dir".
"/tmp/my_target_dir"
4>
4> reltool:eval_target_spec(Spec, code:root_dir(), TargetDir).
{error,"/tmp/my_target_dir: no such file or directory"}
5>
5> file:make_dir(TargetDir).
ok
6>
6> reltool:eval_target_spec(Spec, code:root_dir(), TargetDir).
ok
7>
7> file:list_dir(TargetDir).
{ok,["bin","Install","lib","misc","usr","erts-10.0",
"releases"]}
8>
8> file:list_dir(filename:join([TargetDir,"lib"])).
{ok,["tools-2.9.1","inets-6.3.9",
"kernel-5.2","sasl-3.0.3",
"crypto-3.7.4","erts-10.0",
"stdlib-3.3","compiler-7.0.4"]}
9>
9> file:make_dir("/tmp/yet_another_target_dir").
ok
10>
10> reltool:create_target([Config], "/tmp/yet_another_target_dir").
ok
11>
11> file:list_dir("/tmp/yet_another_target_dir").
{ok,["bin","Install","lib","misc","usr","erts-10.0",
"releases"]}