Rework the ant build process for NT/Windows

Change so that
build.bat is used just to build ant itself.
ant.bat should be used to run ant for other projects.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@267770 13f79535-47bb-0310-9956-ffa450edef68

bootstrap.bat

@@ -5,8 +5,9 @@ REM You will need to specify JAVA_HOME if compiling with 1.2 or later.
 set OLDJAVA=%JAVA%
 set OLDJAVAC=%JAVAC%
 set OLDCLASSPATH=%CLASSPATH%
+set OLDANTHOME=%ANT_HOME%
 
-if exist ..\antrc.bat call ..\antrc.bat
+set ANT_HOME=.
 
 if "" == "%JAVA%"  if "" == "%JAVA_HOME%" set JAVA=java
 if "" == "%JAVA%"                         set JAVA=%JAVA_HOME%\bin\java
@@ -48,13 +49,11 @@ copy %TOOLS%\ant\taskdefs\*.properties classes\org\apache\tools\ant\taskdefs
 echo.
 echo ... Building Ant Distribution
 
-%JAVA% org.apache.tools.ant.Main clean main install %1 %2 %3 %4 %5
+%JAVA% org.apache.tools.ant.Main clean main bootstrap %1 %2 %3 %4 %5
 
 echo.
 echo ... Cleaning Up Build Directories
 
-%JAVA% org.apache.tools.ant.Main clean %1 %2 %3 %4 %5
-
 if     "%OS%" == "Windows_NT" if exist classes\nul rmdir/s/q classes
 if not "%OS%" == "Windows_NT" if exist classes\nul deltree/y classes
 
@@ -64,9 +63,11 @@ echo ... Done Bootstrapping Ant Distribution
 set JAVA=%OLDJAVA%
 set JAVAC=%OLDJAVAC%
 set CLASSPATH=%OLDCLASSPATH%
+set ANT_HOME=%OLDANTHOME%
 set OLDJAVA=
 set OLDJAVAC=
 set OLDCLASSPATH=
 set LOCALCLASSPATH=
+set OLDANTHOME=
 set TOOLS=
 

build.bat

@@ -1,20 +1,14 @@
 @echo off
 
-set _ANTHOME=%ANT_HOME%
-if "%ANT_HOME%" == "" set ANT_HOME=.
+set REALANTHOME=%ANT_HOME%
+set ANT_HOME=.
+if not exist lib\ant.jar call bootstrap.bat
 
-set LOCALCLASSPATH=%CLASSPATH%
-for %%i in (%ANT_HOME%\lib\*.jar) do call lcp.bat %%i
-if exist %JAVA_HOME%\lib\tools.jar call lcp.bat %JAVA_HOME%\lib\tools.jar
-if exist %JAVA_HOME%\lib\classes.zip call lcp.bat %JAVA_HOME%\lib\classes.zip
-
-echo.
-echo Building with classpath: %LOCALCLASSPATH%
-echo.
-
-java -Dant.home="%ANT_HOME%" -classpath "%LOCALCLASSPATH%" %ANT_OPTS% org.apache.tools.ant.Main %1 %2 %3 %4 %5 %6 %7 %8 %9
+set ANT_INSTALL=
+if not "%REALANTHOME%" == "" set ANT_INSTALL=-Dant.install %REALANTHOME%
+call .\bin\ant %ANT_INSTALL% %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 rem clean up
-set LOCALCLASSPATH=
-set ANT_HOME=%_ANTHOME%
-set _ANTHOME=
+set ANT_HOME=%REALANTHOME%
+set REALANTHOME=
+set ANT_INSTALL=

build.xml

@@ -182,10 +182,23 @@
   <!-- =================================================================== -->
   <!-- Installs the ant.jar library and binary files into ant.home         -->
   <!-- =================================================================== -->
-  <target name="install" depends="main">
-    <echo message="installing into ${ant.home}"/>
-    <copydir src="${lib.dir}" dest="${ant.home}/lib"/>
-    <copydir src="${bin.dir}" dest="${ant.home}/bin"/>
+  <target name="bootstrap" depends="main">
+    <echo message="copying bootstrapped files into bin and lib"/>
+    <copydir src="${lib.dir}" dest="lib"/>
+    <copydir src="${bin.dir}" dest="bin"/>
+  </target>     
+
+  <target name="fullinstall" depends="dist" if="ant.install">
+    <echo message="installing full copy of ant into ${ant.install}"/>
+    <mkdir dir="${ant.install}"/>
+    <copydir src="${ant.dist.dir}" dest="${ant.install}"/>
+  </target>     
+  
+  <target name="install" depends="main" if="ant.install">
+    <echo message="copy minimal ant installtion into ${ant.install}"/>
+    <mkdir dir="${ant.install}"/>
+    <copydir src="${lib.dir}" dest="${ant.install}/lib"/>
+    <copydir src="${bin.dir}" dest="${ant.install}/bin"/>
   </target>     
 
   <!-- =================================================================== -->

src/bin/ant.bat

@@ -1,33 +1,35 @@
 @echo off
-@setlocal
-if "%ANT_HOME%"=="" goto checkProgFiles
-goto checkJava
+rem find ANT_HOME
+if not "%ANT_HOME%"=="" goto checkJava
 
-:checkProgFiles
-rem check for ant on system drive
+rem check for ant in Program Files on system drive
 if not exist "%SystemDrive%\Program Files\ant" goto checkSystemDrive
-
 set ANT_HOME=%SystemDrive%\Program Files\ant
 goto checkJava
 
 :checkSystemDrive
+rem check for ant in root directory of system drive
 if not exist "%SystemDrive%\ant" goto noAntHome
 set ANT_HOME=%SystemDrive%\ant
 goto checkJava
 
 :noAntHome
-echo ANT_HOME is not set and ant could not be located
+echo ANT_HOME is not set and ant could not be located. Please set ANT_HOME.
 goto end
 
 :checkJava
 if "%JAVACMD%" == "" set JAVACMD=java
 
+set LOCALCLASSPATH=%CLASSPATH%
+for %%i in (%ANT_HOME%\lib\*.jar) do call %ANT_HOME%\bin\lcp.bat %%i
+
 if "%JAVA_HOME%" == "" goto runAnt
-set CLASSPATH=%JAVA_HOME%\lib\tools.jar;%CLASSPATH%
+if exist %JAVA_HOME%\lib\tools.jar call %ANT_HOME%\bin\lcp.bat %JAVA_HOME%\lib\tools.jar
+if exist %JAVA_HOME%\lib\classes.zip call %ANT_HOME%\bin\lcp.bat %JAVA_HOME%\lib\classes.zip
 
 :runAnt
-set CLASSPATH=%ANT_HOME%\lib\ant.jar;%ANT_HOME%\lib\xml.jar;%CLASSPATH%
-%JAVACMD% -Dant.home="%ANT_HOME%" org.apache.tools.ant.Main %1 %2 %3 %4 %5 %6 %7 %8 %9
+%JAVACMD% -classpath "%LOCALCLASSPATH%" -Dant.home="%ANT_HOME%" %ANT_OPTS% org.apache.tools.ant.Main %1 %2 %3 %4 %5 %6 %7 %8 %9
 
 :end
-@endlocal
+set LOCALCLASSPATH=
+