Add simple script to allow parallel build of OS/SL

Not very clever script but avoids breaking anyone else (I hope). build_target.sh simply moves folder tress to one side making OS or SL the "target".

.gitignore

@@ -21,8 +21,8 @@ indra/.distcc
 build-vc80/
 build-vc100/
 build-vc120/
-build-vc[0-9]*-32/
+build-vc[0-9]*-32*/
-build-vc[0-9]*-64/
+build-vc[0-9]*-64*/
 indra/CMakeFiles
 indra/build-vc[0-9]*
 indra/lib/mono/1.0/*.dll
@@ -99,3 +99,6 @@ indra/newview/exoflickrkeys.h
 indra/newview/fsdiscordkey.h
 my_autobuild.xml
 .vscode
+*.srctrlbm
+*.srctrldb
+*.srctrlprj

build_target.sh

@@ -0,0 +1,71 @@
+#!/usr/bin/env bash
+if [ $# -eq 0 ]
+then
+    echo "USAGE: $0 <OS|SL>"
+    exit 1
+fi
+
+if [ $1 == "SL" ] || [ $1 == "OS" ]
+then 
+    [ $1 == "SL" ] && l="OS" || l="SL"
+else
+    if [ $1 == "test" ] || [ $1 == "?" ]
+    then
+        if [ -d "./build-vc150-64" ] 
+        then
+            c="Unknown"
+            if [ ! -d "./build-vc150-64-SL" ] && [ -d "./build-vc150-64-OS" ]
+            then
+                c="SL"
+            fi
+            if [ -d "./build-vc150-64-SL" ] && [ ! -d "./build-vc150-64-OS" ]
+            then
+                c="OS"
+            fi
+            echo "Current build is for $c"
+        else
+            echo "No build configured"
+        fi
+        exit 0
+    else
+        echo "Invalid target $1"
+        echo "USAGE: $0 <OS|SL>"
+        exit 2
+    fi
+fi
+t=$1
+
+if [ -d "./build-vc150-64" ] 
+then
+    if [ ! -d "./build-vc150-64-$t" ] 
+    then
+        # live folder exists
+        # target does not so we are probably good to go
+        echo "$t already setup"
+        exit 0
+    else
+        # target folder exists so probably means that the setup is for the alternate
+        if [ ! -d "./build-vc150-64-$l" ] 
+        then
+            # alternate folder not found so we rename the live target back to this
+            echo "Currently setup for $l. Renaming default back to $l"
+            `mv ./build-vc150-64 ./build-vc150-64-$l`
+        else
+        # no LAST and no TARGET exists so this is not in the right state
+            echo "Not setup for multi-target"
+            exit 3
+        fi
+    fi
+fi
+
+if [ -d "./build-vc150-64-$t" ] 
+then
+    # live folder exists
+    # target does not so we are probably good to go
+    echo "renaming $t to default"
+    `mv ./build-vc150-64-$t ./build-vc150-64`
+else
+    echo "Not setup for target $t"
+    exit 4
+fi
+