Fix flaky pod installs

.github/scripts/verifyPodfile.sh

@@ -63,6 +63,7 @@ if ! SPEC_DIRS=$(yq '.["EXTERNAL SOURCES"].[].":path" | select( . == "*node_modu
   cleanupAndExit 1
 fi
 
+# Retrieve a list of podspec paths from react-native config
 if ! read_lines_into_array PODSPEC_PATHS < <(npx react-native config | jq --raw-output '.dependencies[].platforms.ios.podspecPath | select ( . != null)'); then
   error "Error: could not parse podspec paths from react-native config command"
   cleanupAndExit 1

.github/workflows/platformDeploy.yml

@@ -226,7 +226,7 @@ jobs:
         with:
           timeout_minutes: 10
           max_attempts: 5
-          command: cd ios && bundle exec pod install
+          command: scripts/pod-install.sh
 
       - name: Decrypt AppStore profile
         run: cd ios && gpg --quiet --batch --yes --decrypt --passphrase="$LARGE_SECRET_PASSPHRASE" --output NewApp_AppStore.mobileprovision NewApp_AppStore.mobileprovision.gpg

.github/workflows/testBuild.yml

@@ -184,7 +184,7 @@ jobs:
         with:
           timeout_minutes: 10
           max_attempts: 5
-          command: cd ios && bundle exec pod install --verbose
+          command: scripts/pod-install.sh
 
       - name: Decrypt AdHoc profile
         run: cd ios && gpg --quiet --batch --yes --decrypt --passphrase="$LARGE_SECRET_PASSPHRASE" --output NewApp_AdHoc.mobileprovision NewApp_AdHoc.mobileprovision.gpg

package.json

@@ -14,7 +14,7 @@
     "clean": "npx react-native clean-project-auto",
     "android": "scripts/set-pusher-suffix.sh && npx react-native run-android --mode=developmentDebug --appId=com.expensify.chat.dev --active-arch-only",
     "ios": "scripts/set-pusher-suffix.sh && npx react-native run-ios --list-devices --mode=\"DebugDevelopment\" --scheme=\"New Expensify Dev\"",
-    "pod-install": "cd ios && bundle exec pod install",
+    "pod-install": "scripts/pod-install.sh",
     "ipad": "concurrently \"npx react-native run-ios --simulator=\\\"iPad Pro (12.9-inch) (6th generation)\\\" --mode=\\\"DebugDevelopment\\\" --scheme=\\\"New Expensify Dev\\\"\"",
     "ipad-sm": "concurrently \"npx react-native run-ios --simulator=\\\"iPad Pro (11-inch) (4th generation)\\\" --mode=\\\"DebugDevelopment\\\" --scheme=\\\"New Expensify Dev\\\"\"",
     "start": "npx react-native start",

scripts/pod-install.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# This script ensures pod installs respect Podfile.lock as the source of truth.
+# Specifically, the podspecs for pods listed under the 'EXTERNAL SOURCES' key in the Podfile.lock are cached in the `ios/Pods/Local Podspecs` directory.
+# While caching results in significantly faster installs, if a cached podspec doesn't match the version in Podfile.lock, pod install will fail.
+# To prevent this, this script will find and delete any mismatched cached podspecs before running pod install
+
+# Exit immediately if any command exits with a non-zero status
+set -e
+
+# Go to project root
+START_DIR="$(pwd)"
+ROOT_DIR="$(dirname "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)")"
+cd "$ROOT_DIR" || exit 1
+
+# Cleanup and exit
+# param - status code
+function cleanupAndExit {
+  cd "$START_DIR" || exit 1
+  exit "$1"
+}
+
+source scripts/shellUtils.sh
+
+# Check if bundle is installed
+if ! bundle --version > /dev/null 2>&1; then
+  error 'bundle is not installed. Please install bundle and try again'
+  cleanupAndExit 1
+fi
+
+# Check if jq is installed
+if ! jq --version > /dev/null 2>&1; then
+  error 'jq is not installed. Please install jq and try again'
+  cleanupAndExit 1
+fi
+
+# Check if yq is installed
+if ! yq --version > /dev/null 2>&1; then
+  error 'yq is not installed. Please install yq and try again'
+  cleanupAndExit 1
+fi
+
+CACHED_PODSPEC_DIR='ios/Pods/Local Podspecs'
+if [ -d "$CACHED_PODSPEC_DIR" ]; then
+  info "Verifying pods from Podfile.lock match local podspecs..."
+
+  # Convert podfile.lock to json since yq is missing some features of jq (namely, if/else)
+  PODFILE_LOCK_AS_JSON="$(yq -o=json ios/Podfile.lock)"
+
+  # Retrieve a list of pods and their versions from Podfile.lock
+  declare PODS_FROM_LOCKFILE
+  if ! read_lines_into_array PODS_FROM_LOCKFILE < <(jq -r '.PODS | map (if (.|type) == "object" then keys[0] else . end) | .[]' < <(echo "$PODFILE_LOCK_AS_JSON")); then
+    error "Error: Could not parse pod versions from Podfile.lock"
+    cleanupAndExit 1
+  fi
+
+  for CACHED_PODSPEC_PATH in "$CACHED_PODSPEC_DIR"/*; do
+    if [ -f "$CACHED_PODSPEC_PATH" ]; then
+      # The next two lines use bash parameter expansion to get just the pod name from the path
+      # i.e: `ios/Pods/Local Podspecs/hermes-engine.podspec.json` to just `hermes-engine`
+      # It extracts the part of the string between the last `/` and the first `.`
+      CACHED_POD_NAME="${CACHED_PODSPEC_PATH##*/}"
+      CACHED_POD_NAME="${CACHED_POD_NAME%%.*}"
+
+      info "🫛 Verifying local pod $CACHED_POD_NAME"
+      CACHED_POD_VERSION="$(jq -r '.version' < <(cat "$CACHED_PODSPEC_PATH"))"
+      for POD_FROM_LOCKFILE in "${PODS_FROM_LOCKFILE[@]}"; do
+        # Extract the pod name and version that was parsed from the lockfile. POD_FROM_LOCKFILE looks like `PodName (version)`
+        IFS=' ' read -r POD_NAME_FROM_LOCKFILE POD_VERSION_FROM_LOCKFILE <<< "$POD_FROM_LOCKFILE"
+        if [[ "$CACHED_POD_NAME" == "$POD_NAME_FROM_LOCKFILE" ]]; then
+          if [[ "$POD_VERSION_FROM_LOCKFILE" != "($CACHED_POD_VERSION)" ]]; then
+            clear_last_line
+            info "⚠️  found mismatched pod: $CACHED_POD_NAME, removing local podspec $CACHED_PODSPEC_PATH"
+            rm "$CACHED_PODSPEC_PATH"
+            echo -e "\n"
+          fi
+          break
+        fi
+      done
+      clear_last_line
+    fi
+  done
+fi
+
+cd ios || cleanupAndExit 1
+bundle exec pod install
+
+# Go back to where we started
+cleanupAndExit 0

scripts/shellUtils.sh

@@ -41,6 +41,11 @@ function title {
   printf "\n%s%s%s\n" "$TITLE" "$1" "$RESET"
 }
 
+# Function to clear the last printed line
+clear_last_line() {
+  echo -ne "\033[1A\033[K"
+}
+
 function assert_equal {
   if [[ "$1" != "$2" ]]; then
     error "Assertion failed: $1 is not equal to $2"