feat: add have.bat as a wrapper

bin/have.bat

@@ -0,0 +1,109 @@
+@echo off
+setlocal
+
+if "%~1" equ "" goto :wrongSyntax
+
+if not defined CMDER_USER_FLAGS (
+  exit /b
+)
+
+set "haveBatNOT=false"
+goto :parseArgument
+
+:doShift
+  shift
+
+:parseArgument
+set "currenTarg=%~1"
+if /i "%currenTarg%" == "/?" (
+  goto :help
+) else if /i "%currenTarg%" equ "/help" (
+  goto :help
+) else if /i "%currenTarg%" equ "/h" (
+  goto :help
+) else if /i "%currenTarg%" equ "NOT" (
+  set "haveBatNOT=true"
+  goto :doShift
+) else (
+  if "%~1" equ "" goto :wrongSyntax
+  if "%~2" equ "" goto :wrongSyntax
+  set "haveBatArgName=%~1"
+  set "haveBatCommand=%~2"
+  goto :detect
+)
+
+:detect
+:: to avoid erroneous deteciton like "/do" "/doNOT", both have a "/do"
+:: but if it works like "/do " "/doNOT ", "/do " won't match "/doN"
+set "CMDER_USER_FLAGS=%CMDER_USER_FLAGS% "
+set "haveBatArgName=%haveBatArgName% "
+:: echo.
+:: echo %CMDER_USER_FLAGS%
+:: echo %haveBatNOT%
+:: echo %haveBatArgName%
+:: echo %haveBatCommand%
+:: echo.
+echo %CMDER_USER_FLAGS% | find /i "%haveBatArgName%">nul
+if "%ERRORLEVEL%" == "0" (
+  if "%haveBatNOT%" == "false" (
+    call "%haveBatCommand%"
+  )
+) else (
+  if "%haveBatNOT%" == "true" (
+    call "%haveBatCommand%"
+  )
+)
+exit /b
+
+:wrongSyntax
+echo The syntax of the command is incorrect.
+echo.
+echo use /? for help
+echo.
+exit /b
+
+:help
+echo have.bat
+echo Handles with custom arguments for cmder's init.bat
+echo   written by xiazeyu, inspired DRSDavidSoft
+echo.
+echo Usage:
+echo.
+echo HAVE [NOT] argName command
+echo.
+echo   NOT      Specifies that have.bat should carry out
+echo            the command only if the condition is false.
+echo.
+echo   argName  Specifies which argument name is to detect.
+echo.
+echo   command  Specifies the command to carry out if the
+echo            argument name is detected. It's recommand to
+echo            use a pair of double quotation marks to 
+echo            wrap your command to avoid exceed expectation.
+echo.
+echo Examples:
+echo.
+echo   these examples are expected to be writted in /config/user-profile.cmd
+echo   it will use the environment varible "CMDER_USER_FLAGS"
+echo.
+echo   Case 1:
+echo.
+echo   The following command in user-profile.cmd would execute "notepad.exe"
+echo.
+echo     call have "/startNotepad" "cmd /c start notepad.exe"
+echo.
+echo   if you pass parameter to init.bat like:
+echo.
+echo     init.bat /startNotepad
+echo.
+echo   Case 2:
+echo.
+echo   The following command in user-profile.cmd would execute "notepad.exe"
+echo.
+echo     call have NOT "/dontStartNotepad" "cmd /c start notepad.exe"
+echo.
+echo   UNLESS you pass parameter to init.bat like:
+echo.
+echo     init.bat /dontStartNotepad
+echo.
+exit /b

vendor/init.bat

@@ -308,28 +308,26 @@ if not exist "%initialConfig%" (
     echo Creating user startup file: "%initialConfig%"
     (
 echo :: use this file to run your own startup commands
-echo :: use  in front of the command to prevent printing the command
+echo :: use in front of the command to prevent printing the command
+echo.
+echo :: the next one lines is for "have" shortcut, a custom arguments handler
+echo :: don't remove it if you need it
+echo set "CMDER_USER_FLAGS=%*"
 echo.
 echo :: uncomment this to have the ssh agent load when cmder starts
 echo :: call "%%GIT_INSTALL_ROOT%%/cmd/start-ssh-agent.cmd"
 echo.
-echo :: uncomment this next two lines to use pageant as the ssh authentication agent
+echo :: uncomment the next two lines to use pageant as the ssh authentication agent
 echo :: SET SSH_AUTH_SOCK=/tmp/.ssh-pageant-auth-sock
 echo :: call "%%GIT_INSTALL_ROOT%%/cmd/start-ssh-pageant.cmd"
 echo.
 echo :: you can add your plugins to the cmder path like so
 echo :: set "PATH=%%CMDER_ROOT%%\vendor\whatever;%%PATH%%"
 echo.
-echo :: arguments in this batch are passed from init.bat, you can parse them like so:
+echo :: arguments in this batch are passed from init.bat, you can quickly parse them like so:
+echo :: more useage can be seen by typing "have /?"
 echo.
-echo :: echo %* | find /i "/customOption">nul
+echo :: have "/customOption" "your custom command"
-echo :: if "%ERRORLEVEL%" == "0" (
-echo ::   echo found /customOption.
-echo ::   do something.
-echo :: ) else (
-echo ::   echo not found /customOption.
-echo ::   do something.
-echo :: )
 echo.
 echo @echo off
 ) >"%initialConfig%"