chore: allow running buildup and builddown scripts without lerna glob…

…ally installed (aws#2667)

Modift buildup and builddown script to include `$(npm bin)` in `PATH` so that lerna does not need to be installed globally in order to run the scripts.

Closes aws#1338

build.sh

@@ -43,7 +43,7 @@ fail() {
 BUILD_INDICATOR=".BUILD_COMPLETED"
 rm -rf $BUILD_INDICATOR
 
-export PATH=node_modules/.bin:$PATH
+export PATH=$(npm bin):$PATH
 export NODE_OPTIONS="--max-old-space-size=4096 ${NODE_OPTIONS:-}"
 
 # Speed up build by reusing calculated tree hashes

install.sh

@@ -13,7 +13,7 @@ echo "installing repo-global dependencies..."
 npm ci --global-style
 
 # Now that we have lerna available...
-export PATH=node_modules/.bin:$PATH
+export PATH=$(npm bin):$PATH
 
 echo "============================================================================================="
 echo "cleanup and start bootstrapping..."

scripts/builddown

@@ -1,6 +1,7 @@
 #!/bin/bash
 set -euo pipefail
 
+export PATH=$(npm bin):$PATH
 export NODE_OPTIONS="--max-old-space-size=4096 ${NODE_OPTIONS:-}"
 
 scriptdir=$(cd $(dirname $0) && pwd)

scripts/buildup

@@ -1,6 +1,7 @@
 #!/bin/bash
 set -euo pipefail
 
+export PATH=$(npm bin):$PATH
 export NODE_OPTIONS="--max-old-space-size=4096 ${NODE_OPTIONS:-}"
 
 scriptdir=$(cd $(dirname $0) && pwd)