more flexible and changed KERNEL_DIR environment variable to APHRODITE_DIR

kernel/build

@@ -17,6 +17,7 @@
         fi
     fi
 
+    trap 'popd -0 2>&1 > /dev/null' EXIT
     set -o errexit # put down here as getopt returns error code four if it's working, and it probably would work otherwise, but I'm not taking chances
 
     check=false
@@ -60,7 +61,9 @@
         fi
     fi
 
-    export KERNEL_DIR=$(readlink -e .)
+    TEMP_APHRODITE_DIR=$(readlink -e .)
+
+    APHRODITE_DIR="${APHRODITE_DIR:-$TEMP_APHRODITE_DIR}"
 
     DIR="${BASH_SOURCE%/*}"
     if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
@@ -75,10 +78,16 @@
     rm -f targets.tmp
     envsubst < "targets" > "targets.tmp"
 
+    # see above about -f
+    rm -f /tmp/aphrodite_dir
+    echo $APHRODITE_DIR > /tmp/aphrodite_dir # we really don't want this to be overwritten
+
     export $(grep -Ev '^#' targets.tmp | xargs)
 
     export $(grep -Ev '^#' config.aphro.tmp | xargs)
 
+    APHRODITE_DIR=$(cat /tmp/aphrodite_dir)
+
     get_version
 
     if [[ "$CFG_VERSION" != "$VERSION" ]]; then
@@ -91,9 +100,12 @@
     fi
 
     function compile_one {
+        pushd . 2>&1 > /dev/null
+        cd "$APHRODITE_DIR"
         target=$1
         real_target=${!target}
-        real_target=$(basename $real_target)
+        target_json=$(basename $real_target)
+        real_target="$APHRODITE_DIR/$target_json"
         if [[ $check = "true" ]]; then
             echo "[INFO] Checking target $target(with rust target of $real_target)"
             cargo clippy --target "$real_target" --release -Zbuild-std=core,alloc --bin entrypoint_$target
@@ -103,7 +115,7 @@
             cargo clippy --target "$real_target" --release -Zbuild-std=core,alloc --bin entrypoint_$target
             echo "[INFO] Building"
             cargo build --target "$real_target" --release -Zbuild-std=core,alloc --bin entrypoint_$target 2>/dev/null
-            cp "target/$(echo $real_target | sed 's/\.json//')/release/entrypoint_$target" kernel-$target
+            cp "target/$(echo $target_json | sed 's/\.json//')/release/entrypoint_$target" kernel-$target
 
             if [[ "$CONFIG_BUILD_GRUB" = "true" ]]; then
                 if [[ "$target" = "x86" || "$target" = "mips64" || "$target" = "mipsel" || "$target" = "mipsle" ]]; then

kernel/targets

@@ -1,4 +1,4 @@
 # Targets used for documentation.
-x86=$KERNEL_DIR/i686-unknown-none.json
+x86=$APHRODITE_DIR/i686-unknown-none.json
 
 TARGETS=x86