chore: Made pre-commit hook require dep updates before running update…

… third party deps (#251)

.husky/pre-commit

@@ -1,5 +1,5 @@
 #!/bin/sh
 . "$(dirname "$0")/_/husky.sh"
-. "$(dirname "$0")/../bin/update-third-party-notices.sh"
+./"$(dirname "$0")/../bin/update-third-party-notices.sh"
 
 npx lint-staged

bin/update-third-party-notices.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 #
 # Checks all staged files for
 # package.json. If it changes
@@ -8,15 +8,84 @@
 
 STAGED_FILES=$(git diff-index --cached --name-only HEAD)
 
+PKG_HAS_CHANGED=0
 for FILE in $STAGED_FILES
 do
-  if [ $FILE == "package.json" ]; then
-    RUN_THIRD_PARTY=1
+  if [ ${FILE} == "package.json" ]; then
+    PKG_HAS_CHANGED=1
     break
   fi
 done
 
-if [ -n "$RUN_THIRD_PARTY" ]; then
+if [ ${PKG_HAS_CHANGED} -eq 0 ]; then
+  echo "package.json has not changed"
+  exit 0
+fi
+
+if ! [ -x "$(command -v jq)" ]; then
+  echo "Please install jq."
+  echo "https://jqlang.github.io/jq/"
+  exit 1
+fi
+
+MAIN_PKG=$(git show main:package.json | jq -rc)
+HEAD_PKG=$(git cat-file blob :package.json | jq -rc)
+
+MAIN_DEPS_LEN=$(echo "${MAIN_PKG}" | jq '.dependencies | length')
+HEAD_DEPS_LEN=$(echo "${HEAD_PKG}" | jq '.dependencies | length')
+MAIN_OPT_DEPS_LEN=$(echo "${MAIN_PKG}" | jq '.optionalDependencies | length')
+HEAD_OPT_DEPS_LEN=$(echo "${HEAD_PKG}" | jq '.optionalDependencies | length')
+MAIN_DEV_DEPS_LEN=$(echo "${MAIN_PKG}" | jq '.devDependencies | length')
+HEAD_DEV_DEPS_LEN=$(echo "${HEAD_PKG}" | jq '.devDependencies | length')
+
+RUN_THIRD_PARTY=0
+if [ ${MAIN_DEPS_LEN} -ne ${HEAD_DEPS_LEN} ]; then
+  RUN_THIRD_PARTY=1
+elif [ ${MAIN_OPT_DEPS_LEN} -ne ${HEAD_OPT_DEPS_LEN} ]; then
+  RUN_THIRD_PARTY=1
+elif [ ${MAIN_DEV_DEPS_LEN} -ne ${HEAD_DEV_DEPS_LEN} ]; then
+  RUN_THIRD_PARTY=1
+fi
+
+if [ ${RUN_THIRD_PARTY} -eq 0 ]; then
+  for dep in $(echo "${MAIN_PKG}" | jq -rc '.dependencies | to_entries | .[]'); do
+    NAME=$(echo ${dep} | jq -r '.key')
+    VERSION=$(echo ${dep} | jq -r '.value')
+    HEAD_VERSION=$(echo "${HEAD_PKG}" | jq -rc --arg pkg "${NAME}" '.dependencies[$pkg]')
+    if [ "${VERSION}" != "${HEAD_VERSION}" ]; then
+      RUN_THIRD_PARTY=1
+      break
+    fi
+  done
+fi
+
+if [ ${RUN_THIRD_PARTY} -eq 0 ]; then
+  for dep in $(echo "${MAIN_PKG}" | jq -rc '.optionalDependencies | to_entries | .[]'); do
+    NAME=$(echo ${dep} | jq -r '.key')
+    VERSION=$(echo ${dep} | jq -r '.value')
+    HEAD_VERSION=$(echo "${HEAD_PKG}" | jq -rc --arg pkg "${NAME}" '.optionalDependencies[$pkg]')
+    if [ "${VERSION}" != "${HEAD_VERSION}" ]; then
+      RUN_THIRD_PARTY=1
+      break
+    fi
+  done
+fi
+
+if [ ${RUN_THIRD_PARTY} -eq 0 ]; then
+  for dep in $(echo "${MAIN_PKG}" | jq -rc '.devDependencies | to_entries | .[]'); do
+    NAME=$(echo ${dep} | jq -r '.key')
+    VERSION=$(echo ${dep} | jq -r '.value')
+    HEAD_VERSION=$(echo "${HEAD_PKG}" | jq -rc --arg pkg "${NAME}" '.devDependencies[$pkg]')
+    if [ "${VERSION}" != "${HEAD_VERSION}" ]; then
+      RUN_THIRD_PARTY=1
+      break
+    fi
+  done
+fi
+
+if [ ${RUN_THIRD_PARTY} -eq 1 ]; then
   echo "package.json changed, running oss manifest and notices"
   npm run third-party-updates
+else
+  echo "package.json has not changed"
 fi