Minor cleanup to the bindgen scripts

components/style/binding_tools/regen.sh

@@ -8,13 +8,15 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+TOOLS_DIR="$(dirname ${0})"
+
 if [[ ${#} -eq 0 ]]; then
   echo "Usage: ${0} /path/to/gecko/objdir [other-regen.py-flags]"
   exit 1
 fi
 
 # Check for rust-bindgen
-if [[ ! -d rust-bindgen ]]; then
+if [[ ! -d "${TOOLS_DIR}/rust-bindgen" ]]; then
   echo "rust-bindgen not found. Run setup_bindgen.sh first."
   exit 1
 fi
@@ -22,7 +24,7 @@ fi
 # Check for /usr/include
 if [[ ! -d /usr/include ]]; then
   echo "/usr/include doesn't exist." \
-       "Mac users may need to run xcode-select --install."
+       "Mac users may need to run 'xcode-select --install.'"
   exit 1
 fi
 
@@ -32,4 +34,4 @@ else
   LIBCLANG_PATH="$(brew --prefix llvm38)/lib/llvm-3.8/lib"
 fi
 
-./regen.py --target all "${@}"
+"./${TOOLS_DIR}/regen.py" --target all "${@}"

components/style/binding_tools/setup_bindgen.sh

@@ -18,28 +18,21 @@ else
   export LIBCLANG_PATH="$(brew --prefix llvm38)/lib/llvm-3.8/lib"
 fi
 
-# Make sure we have llvm38.
+# Make sure we have llvm-3.8.
 if [[ ! -x "$(command -v clang-3.8)" ]]; then
-    echo "llmv38 must be installed." \
-         "Mac users should |brew install llvm38|, Linux varies by distro."
-    exit 1
+  echo "llvm-3.8 is required." \
+       "Mac users should |brew install llvm38|," \
+       "Linux users can find it in clang-3.8."
+  exit 1
 fi
 
 export LD_LIBRARY_PATH="${LIBCLANG_PATH}"
 export DYLD_LIBRARY_PATH="${LIBCLANG_PATH}"
 
-# Check for multirust
-if [[ ! -x "$(command -v multirust)" ]]; then
-    echo "multirust must be installed."
-    exit 1
-fi
-
 # Don't try to clone twice.
 if [[ ! -d rust-bindgen ]]; then
   git clone https://github.com/servo/rust-bindgen.git
 fi
 
 cd rust-bindgen
-
-multirust override nightly
 cargo build --features llvm_stable