Move path loading and IEx booting to Elixir (#12375)

This gives us more control to cache paths
and over boot compared to relying on scripts.

This also makes it easier for someone to provide
alternatives to IEx.

bin/elixir

@@ -18,7 +18,6 @@ Usage: $(basename "$0") [options] [.exs file] [data]
   -pz "PATH"                   Appends the given path to Erlang code path (*)
   -v, --version                Prints Erlang/OTP and Elixir versions (standalone)
 
-  --app APP                    Starts the given app and its dependencies (*)
   --erl "SWITCHES"             Switches to be passed down to Erlang (*)
   --eval "COMMAND"             Evaluates the given command, same as -e (*)
   --logger-otp-reports BOOL    Enables or disables OTP reporting
@@ -95,7 +94,6 @@ starts_with () {
 }
 
 ERL_EXEC="erl"
-MODE="elixir"
 I=1
 E=0
 LENGTH=$#
@@ -106,18 +104,13 @@ while [ $I -le $LENGTH ]; do
   S=0
   C=0
   case "$1" in
-    +iex)
+    +elixirc|+iex)
         C=1
-        MODE="iex"
-        ;;
-    +elixirc)
-        C=1
-        MODE="elixirc"
         ;;
     -v|--no-halt|--dbg)
         C=1
         ;;
-    -e|-r|-pr|-pa|-pz|--app|--eval|--remsh|--dot-iex)
+    -e|-r|-pr|-pa|-pz|--eval|--remsh|--dot-iex)
         C=2
         ;;
     --rpc-eval)
@@ -220,7 +213,6 @@ SELF=$(readlink_f "$0")
 SCRIPT_PATH=$(dirname "$SELF")
 
 if [ "$OSTYPE" = "cygwin" ]; then SCRIPT_PATH=$(cygpath -m "$SCRIPT_PATH"); fi
-if [ "$MODE" != "iex" ]; then ERL="-noshell -s elixir start_cli $ERL"; fi
 
 if [ "$OS" != "Windows_NT" ] && [ -z "$NO_COLOR" ]; then
   if test -t 1 -a -t 2; then ERL="-elixir ansi_enabled true $ERL"; fi
@@ -231,7 +223,7 @@ fi
 ERTS_BIN=
 ERTS_BIN="$ERTS_BIN"
 
-set -- "$ERTS_BIN$ERL_EXEC" -pa "$SCRIPT_PATH"/../lib/*/ebin $ELIXIR_ERL_OPTIONS $ERL "$@"
+set -- "$ERTS_BIN$ERL_EXEC" -noshell -elixir_root "$SCRIPT_PATH"/../lib -pa "$SCRIPT_PATH"/../lib/elixir/ebin $ELIXIR_ERL_OPTIONS -s elixir start_cli $ERL "$@"
 
 if [ -n "$RUN_ERL_PIPE" ]; then
   ESCAPED=""

bin/elixir.bat

@@ -25,7 +25,6 @@ echo   -pa "PATH"                   Prepends the given path to Erlang code path
 echo   -pz "PATH"                   Appends the given path to Erlang code path (*)
 echo   -v, --version                Prints Erlang/OTP and Elixir versions (standalone)
 echo.
-echo   --app APP                    Starts the given app and its dependencies (*)
 echo   --erl "SWITCHES"             Switches to be passed down to Erlang (*)
 echo   --eval "COMMAND"             Evaluates the given command, same as -e (*)
 echo   --logger-otp-reports BOOL    Enables or disables OTP reporting
@@ -97,7 +96,7 @@ rem Recursive loop called for each parameter that parses the cmd line parameters
 set "par=%~1"
 if "!par!"=="" (
   rem skip if no parameter
-  goto expand_erl_libs
+  goto run
 )
 shift
 set par="!par:"=\"!"
@@ -107,8 +106,8 @@ if !endLoop! == 1 (
 )
 rem ******* EXECUTION OPTIONS **********************
 if !par!=="--werl"   (set useWerl=1 && goto startloop)
-if !par!=="+iex"     (set parsElixir=!parsElixir! +iex && set runMode="iex" && goto startloop)
-if !par!=="+elixirc" (set parsElixir=!parsElixir! +elixirc && set runMode="elixirc" && goto startloop)
+if !par!=="+iex" (set parsElixir=!parsElixir! +iex && goto startloop)
+if !par!=="+elixirc" (set parsElixir=!parsElixir! +elixirc && goto startloop)
 rem ******* EVAL PARAMETERS ************************
 if ""==!par:-e=! (
   set "VAR=%~1"
@@ -139,7 +138,6 @@ if ""==!par:-pa=!         (set "parsElixir=!parsElixir! -pa %~1" && shift && got
 if ""==!par:-pz=!         (set "parsElixir=!parsElixir! -pz %~1" && shift && goto startloop)
 if ""==!par:-v=!          (set "parsElixir=!parsElixir! -v" && goto startloop)
 if ""==!par:--version=!   (set "parsElixir=!parsElixir! --version" && goto startloop)
-if ""==!par:--app=!       (set "parsElixir=!parsElixir! --app %~1" && shift && goto startloop)
 if ""==!par:--no-halt=!   (set "parsElixir=!parsElixir! --no-halt" && goto startloop)
 if ""==!par:--remsh=!     (set "parsElixir=!parsElixir! --remsh %~1" && shift && goto startloop)
 if ""==!par:--dot-iex=!   (set "parsElixir=!parsElixir! --dot-iex %~1" && shift && goto startloop)
@@ -149,7 +147,6 @@ if ""==!par:--boot=!                (set "parsErlang=!parsErlang! -boot %~1" &&
 if ""==!par:--boot-var=!            (set "parsErlang=!parsErlang! -boot_var %~1 %~2" && shift && shift && goto startloop)
 if ""==!par:--cookie=!              (set "parsErlang=!parsErlang! -setcookie %~1" && shift && goto startloop)
 if ""==!par:--hidden=!              (set "parsErlang=!parsErlang! -hidden" && goto startloop)
-if ""==!par:--detached=!            (set "parsErlang=!parsErlang! -detached" && echo warning: the --detached option is deprecated && goto startloop)
 if ""==!par:--erl-config=!          (set "parsErlang=!parsErlang! -config %~1" && shift && goto startloop)
 if ""==!par:--logger-otp-reports=!  (set "parsErlang=!parsErlang! -logger handle_otp_reports %1" && shift && goto startloop)
 if ""==!par:--logger-sasl-reports=! (set "parsErlang=!parsErlang! -logger handle_sasl_reports %1" && shift && goto startloop)
@@ -162,21 +159,14 @@ set endLoop=1
 set parsElixir=!parsElixir! !par!
 goto startloop
 
-:expand_erl_libs
-rem expand all ebin paths as Windows does not support the ..\*\ebin wildcard
-set ext_libs=
-for  /d %%d in ("!SCRIPT_PATH!..\lib\*.") do (
-  set ext_libs=!ext_libs! -pa "%%~fd\ebin"
-)
-
 :run
 reg query HKCU\Console /v VirtualTerminalLevel 2>nul | findstr /e "0x1" >nul 2>nul
 if %errorlevel% == 0 (
   set beforeExtra=-elixir ansi_enabled true !beforeExtra!
 )
-if not !runMode! == "iex" (
-  set beforeExtra=-noshell -s elixir start_cli !beforeExtra!
-)
+
+set beforeExtra=-noshell -elixir_root !SCRIPT_PATH!..\lib -pa !SCRIPT_PATH!..\lib\elixir\ebin -s elixir start_cli !beforeExtra!
+
 if defined ELIXIR_CLI_DRY_RUN (
    if defined useWerl (
      echo start "" "!ERTS_BIN!werl.exe" !ext_libs! !ELIXIR_ERL_OPTIONS! !parsErlang! !beforeExtra! -extra !parsElixir!

bin/iex

@@ -30,4 +30,4 @@ readlink_f () {
 
 SELF=$(readlink_f "$0")
 SCRIPT_PATH=$(dirname "$SELF")
-exec "$SCRIPT_PATH"/elixir --no-halt --erl "-noshell -user Elixir.IEx.CLI" +iex "$@"
+exec "$SCRIPT_PATH"/elixir --no-halt --erl "-user elixir" +iex "$@"

bin/iex.bat

@@ -24,6 +24,6 @@ goto end
 
 :run
 if defined IEX_WITH_WERL (set __ELIXIR_IEX_FLAGS=--werl) else (set __ELIXIR_IEX_FLAGS=)
-call "%~dp0\elixir.bat" --no-halt --erl "-noshell -user Elixir.IEx.CLI" +iex %__ELIXIR_IEX_FLAGS% %*
+call "%~dp0\elixir.bat" --no-halt --erl "-user elixir" +iex %__ELIXIR_IEX_FLAGS% %*
 :end
 endlocal