real bootstrapping

.gitignore

@@ -1,8 +1,9 @@
+rebar3
+_build
 .depsolver_plt
 *.beam
 test/*_data
 logs
-rebar3
 /rebar
 *~
 *.orig
@@ -13,6 +14,5 @@ rebar3
 /.eunit
 /deps
 /.rebar
-rebar.lock
 priv/templates/*.dtl.erl
 ebin

.travis.yml

@@ -3,7 +3,8 @@ otp_release:
   - 17.0
   - R16B03-1
   - R15B03
-script: make travis
+before_script: "./bootstrap"
+script: "./rebar3 ct"
 branches:
   only:
     - master

bootstrap

@@ -0,0 +1,129 @@
+#!/usr/bin/env escript
+%% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ft=erlang ts=4 sw=4 et
+
+main(_Args) ->
+    %% Fetch and build deps required to build rebar3
+    BaseDeps = [{providers, []}
+               ,{getopt, []}
+               ,{erlware_commons, ["ec_dictionary.erl", "ec_vsn.erl"]}],
+    Deps = get_deps(),
+    [fetch_and_compile(Dep, Deps) || Dep <- BaseDeps],
+
+    %% Build rebar3 modules with compile:file
+    bootstrap_rebar3(),
+
+    %% Build rebar.app from rebar.app.src
+    {ok, App} = rebar_app_info:new(rebar, "3.0.0", filename:absname("_build/default/lib/rebar/")),
+    rebar_otp_app:compile(rebar_state:new(), App),
+
+    %% Because we are compiling files that are loaded already we want to silence
+    %% not_purged errors in rebar_erlc_compiler:opts_changed/1
+    error_logger:tty(false),
+
+    setup_env(),
+    os:putenv("REBAR_PROFILE", "bootstrap"),
+    {ok, State} = rebar3:run(["compile"]),
+    reset_env(),
+    os:unsetenv("REBAR_PROFILE"),
+    %% Build erlydtl files (a hook on compile in the default profile) and escript file
+    DepsPaths = rebar_state:code_paths(State, all_deps),
+    code:add_pathsa(DepsPaths),
+
+    rebar3:run(["clean", "-a"]),
+    rebar3:run(["escriptize"]),
+
+    %% Done with compile, can turn back on error logger
+    error_logger:tty(true),
+
+    %% Finally, update executable perms for our script on *nix,
+    %%  or write out script files on win32.
+    ec_file:copy("_build/default/bin/rebar3", "./rebar3"),
+    case os:type() of
+        {unix,_} ->
+            [] = os:cmd("chmod u+x rebar3"),
+            ok;
+        {win32,_} ->
+            write_windows_scripts(),
+            ok;
+        _ ->
+            ok
+    end.
+
+fetch_and_compile({Name, ErlFirstFiles}, Deps) ->
+    {Name, _, Repo} = lists:keyfind(Name, 1, Deps),
+    ok = fetch(Repo, Name),
+    compile(Name, ErlFirstFiles).
+
+fetch({git, Url, Source}, App) ->
+    Dir = filename:join([filename:absname("_build/default/lib/"), App]),
+    case filelib:is_dir(Dir) of
+        true ->
+            true = code:add_path(filename:join(Dir, "ebin")),
+            ok;
+        false ->
+            fetch_source(Dir, Url, Source),
+            ok
+    end.
+
+fetch_source(Dir, Url, {ref, Ref}) ->
+    ok = filelib:ensure_dir(Dir),
+    os:cmd(io_lib:format("git clone ~s ~s", [Url, Dir])),
+    {ok, Cwd} = file:get_cwd(),
+    file:set_cwd(Dir),
+    os:cmd(io_lib:format("git checkout -q ~s", [Ref])),
+    file:set_cwd(Cwd);
+fetch_source(Dir, Url, {_, Branch}) ->
+    ok = filelib:ensure_dir(Dir),
+    os:cmd(io_lib:format("git clone ~s ~s -b ~s --single-branch",
+                         [Url, Dir, Branch])).
+
+compile(App, FirstFiles) ->
+    Dir = filename:join(filename:absname("_build/default/lib/"), App),
+    filelib:ensure_dir(filename:join([Dir, "ebin", "dummy.beam"])),
+    code:add_path(filename:join(Dir, "ebin")),
+    FirstFilesPaths = [filename:join([Dir, "src", Module]) || Module <- FirstFiles],
+    Sources = FirstFilesPaths ++ filelib:wildcard(filename:join([Dir, "src", "*.erl"])),
+    [compile:file(X, [{i, filename:join(Dir, "include")}
+                     ,{outdir,  filename:join(Dir, "ebin")}
+                     ,return]) || X <- Sources].
+
+bootstrap_rebar3() ->
+    filelib:ensure_dir("_build/default/lib/rebar/ebin/dummy.beam"),
+    filelib:ensure_dir("_build/default/lib/rebar/src/dummy.erl"),
+    ec_file:copy("src", "_build/default/lib/rebar/src", [recursive]),
+    Sources = filelib:wildcard("src/*.erl"),
+    [compile:file(X, [{outdir, "_build/default/lib/rebar/ebin/"}]) || X <- Sources],
+    code:add_path(filename:absname("_build/default/lib/rebar/ebin")).
+
+setup_env() ->
+    %% We don't need or want erlydtl or relx providers loaded yet
+    application:load(rebar),
+    {ok, Providers} = application:get_env(rebar, providers),
+    Providers1 = Providers -- [rebar_prv_erlydtl_compiler,
+                               rebar_prv_release,
+                               rebar_prv_tar],
+    application:set_env(rebar, providers, Providers1).
+
+reset_env() ->
+    %% Reset the env so we get all providers and can build erlydtl files
+    application:unset_env(rebar, providers),
+    application:unload(rebar),
+    application:load(rebar).
+
+write_windows_scripts() ->
+    CmdScript=
+        "@echo off\r\n"
+        "setlocal\r\n"
+        "set rebarscript=%~f0\r\n"
+        "escript.exe \"%rebarscript:.cmd=%\" %*\r\n",
+    ok = file:write_file("rebar3.cmd", CmdScript).
+
+get_deps() ->
+    case file:consult("rebar.lock") of
+        {ok, [Deps]} ->
+            [{binary_to_atom(Name, utf8), "", Source} || {Name, Source, _Level} <- Deps];
+        _ ->
+            {ok, Config} = file:consult("rebar.config"),
+            proplists:get_value(deps, Config)
+    end.

rebar.config

@@ -1,9 +1,22 @@
 %% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
 %% ex: ts=4 sw=4 ft=erlang et
 
-%% escript_incl_extra is for internal rebar-private use only.
-%% Do not use outside rebar. Config interface is not stable.
-{escript_incl_extra, [{"priv/templates/*", "."}, {"rebar/include/*", "."}]}.
+{deps, [
+       {erlware_commons, "",
+        {git, "https://github.com/erlware/erlware_commons.git",
+         {branch, "master"}}},
+       {providers, "",
+        {git, "https://github.com/tsloughter/providers.git",
+         {tag, "v1.3.1"}}},
+       {erlydtl, "",
+        {git, "https://github.com/erlydtl/erlydtl.git",
+         {branch, "master"}}},
+       {relx, "",
+        {git, "https://github.com/erlware/relx.git",
+         {branch, "master"}}},
+       {getopt, "",
+        {git, "https://github.com/jcomellas/getopt.git",
+         {branch, "master"}}}]}.
 
 {escript_incl_apps,
  [getopt, merl, erlydtl, erlware_commons, relx,  providers, rebar]}.
@@ -18,23 +31,37 @@
   debug_info,
   warnings_as_errors]}.
 
-{deps, [
-       {erlware_commons, ".*",
-        {git, "https://github.com/erlware/erlware_commons.git",
-         {branch, "master"}}},
-       {providers, "",
-        {git, "https://github.com/tsloughter/providers.git",
-         {tag, "v1.3.1"}}},
-       {erlydtl, ".*",
-         {git, "https://github.com/erlydtl/erlydtl.git",
-          {tag, "0.10.0"}}},
-       {relx, "",
-        {git, "https://github.com/erlware/relx.git",
-         {branch, "master"}}},
-       {getopt, "", {git, "https://github.com/jcomellas/getopt.git", {branch, "master"}}},
-       {meck, "", {git, "https://github.com/eproxus/meck.git", {tag, "0.8.2"}}}]}.
-
 {erlydtl_opts, [{doc_root, "priv/templates"},
                 {compiler_options, [report, return, debug_info]}]}.
 
 {dialyzer_plt_apps, [common_test, dialyzer, erlydtl, eunit, snmp]}.
+
+{provider_hooks, [{post, [{compile, {erlydtl, compile}}]}]}.
+
+%% Profiles
+{profiles, [{test,
+             [{deps, [
+                     {meck, "", {git, "https://github.com/eproxus/meck.git", {tag, "0.8.2"}}}
+                     ]}
+             ]
+            },
+
+            %% We don't want erlydtl to attempt to run on the first compile pass to bootstrap
+            {bootstrap, [{overrides, [{override, relx, [{provider_hooks, [{post, []}]}]}]},
+                         {provider_hooks, [{post, []}]}]}
+           ]}.
+
+%% Overrides
+{overrides, [{override, erlware_commons, [{plugins, []}]},
+             {override, merl, [{pre_hooks, [{"(linux|darwin|solaris)", compile, "make -C \"$REBAR_DEPS_DIR/merl\" all -W test"},
+                                            {"(freebsd|netbsd|openbsd)", compile, "gmake -C \"$REBAR_DEPS_DIR/merl\" all"},
+                                            {"win32", compile, "make -C \"%REBAR_DEPS_DIR%/merl\" all -W test"},
+                                            {eunit,
+                                             "erlc -I include/erlydtl_preparser.hrl -o test"
+                                             " test/erlydtl_extension_testparser.yrl"},
+                                            {"(linux|darwin|solaris)", eunit, "make -C \"$REBAR_DEPS_DIR/merl\" test"},
+                                            {"(freebsd|netbsd|openbsd)", eunit, "gmake -C \"$REBAR_DEPS_DIR/merl\" test"},
+                                            {"win32", eunit, "make -C \"%REBAR_DEPS_DIR%/merl\" test"}
+                                           ]}]},
+             {override, erlydtl, [{pre_hooks, []}]}
+            ]}.

rebar.lock

@@ -0,0 +1,32 @@
+[{<<"rebar_vsn_plugin">>,
+  {git,"https://github.com/erlware/rebar_vsn_plugin.git",
+       {ref,"fd40c960c7912193631d948fe962e1162a8d1334"}},
+  1},
+ {<<"merl">>,
+  {git,"git://github.com/erlydtl/merl.git",
+       {ref,"750b09d44425f435ff579a4d28bf5844bb5b4ef1"}},
+  1},
+ {<<"eunit_formatters">>,
+  {git,"git://github.com/seancribbs/eunit_formatters",
+       {ref,"2c73eb6e46b0863f19507857b386a48a53aaf141"}},
+  1},
+ {<<"relx">>,
+  {git,"https://github.com/erlware/relx.git",
+       {ref,"3f2462807fe4afb82bc52dd3ff8ff9244aad3bd3"}},
+  0},
+ {<<"providers">>,
+  {git,"https://github.com/tsloughter/providers.git",
+       {ref,"7563ba7e916d5a35972b25b3aa1945ffe0a8e7a5"}},
+  0},
+ {<<"getopt">>,
+  {git,"https://github.com/jcomellas/getopt.git",
+       {ref,"626698975e63866156159661d100785d65eab6f9"}},
+  0},
+ {<<"erlydtl">>,
+  {git,"https://github.com/erlydtl/erlydtl.git",
+       {ref,"a4ac28680d6e066aabf86b3be9f073352a1a4d40"}},
+  0},
+ {<<"erlware_commons">>,
+  {git,"https://github.com/erlware/erlware_commons.git",
+       {ref,"05b956da26788f30b3cb793fa6ace02b75f481d0"}},
+  0}].

src/rebar3.erl

@@ -27,6 +27,7 @@
 -module(rebar3).
 
 -export([main/1,
+         run/1,
          run/2,
          global_option_spec_list/0,
          init_config/0,

src/rebar_api.erl

@@ -54,7 +54,7 @@ wordsize() ->
 
 %% Add deps to the code path
 add_deps_to_path(State) ->
-  code:add_paths(rebar_state:code_paths(State, all_deps)).
+  code:add_pathsa(rebar_state:code_paths(State, all_deps)).
 
 %% Revert to only having the beams necessary for running rebar3 and plugins in the path
 restore_code_path(State) ->

src/rebar_config.erl

@@ -57,7 +57,6 @@ consult_file(File) ->
                     {ok, Terms} = consult_and_eval(File, Script),
                     Terms;
                 false ->
-                    ?DEBUG("Consult config file ~p", [File]),
                     try_consult(File)
             end
     end.

src/rebar_erlc_compiler.erl

@@ -148,7 +148,8 @@ doterl_compile(Config, Dir, OutDir, MoreSources, ErlOpts) ->
 
     %% Make sure that ebin/ exists and is on the path
     ok = filelib:ensure_dir(filename:join(OutDir, "dummy.beam")),
-    true = code:add_path(filename:absname(OutDir)),
+    true = code:add_patha(filename:absname(OutDir)),
+
     OutDir1 = proplists:get_value(outdir, ErlOpts, OutDir),
 
     G = init_erlcinfo(proplists:get_all_values(i, ErlOpts), AllErlFiles, Dir),

src/rebar_otp_app.erl

@@ -128,7 +128,6 @@ preprocess(State, AppInfo, AppSrcFile) ->
 load_app_vars(State) ->
     case rebar_state:get(State, app_vars_file, undefined) of
         undefined ->
-            ?DEBUG("No app_vars_file defined.", []),
             [];
         Filename ->
             ?INFO("Loading app vars from ~p", [Filename]),

src/rebar_prv_common_test.erl

@@ -39,7 +39,7 @@ init(State) ->
 do(State) ->
     ?INFO("Running Common Test suites...", []),
 
-    code:add_paths(rebar_state:code_paths(State, all_deps)),
+    code:add_pathsa(rebar_state:code_paths(State, all_deps)),
 
     %% Run ct provider prehooks
     Providers = rebar_state:providers(State),