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firebase-ios-sdk/scripts/update_firebase_spm_dependency.sh
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#!/usr/bin/env bash
# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Modify a .xcodeproj to use a specific branch, version, or commit for the
# firebase-ios-sdk SPM dependency.
set -euo pipefail
# Enable trace mode if DEBUG is set to 'true'
if [[ "${DEBUG:-false}" == "true" ]]; then
set -x
fi
# --- Argument parsing ---
if [[ $# -lt 2 ]]; then
echo "Modify a .xcodeproj to use a specific branch, version, or commit for the"
echo "firebase-ios-sdk SPM dependency."
echo ""
echo "Usage: $0 <path_to.xcodeproj> [--version <version> | --revision <revision> | --prerelease | --branch <branch>]"
exit 1
fi
XCODEPROJ_PATH="$1"
shift
MODE="$1"
shift
PBXPROJ_PATH="${XCODEPROJ_PATH}/project.pbxproj"
# Regex matches SemVer `firebase-ios-sdk` dependency in project.pbxproj:
# {
# isa = XCRemoteSwiftPackageReference;
# repositoryURL = "https://github.com/firebase/firebase-ios-sdk.git";
# requirement = {
# kind = upToNextMajorVersion;
# minimumVersion = xx.yy.zz;
# };
# };
REQUIREMENT_REGEX='({'\
'\s*isa = XCRemoteSwiftPackageReference;'\
'\s*repositoryURL = "https://github\.com/firebase/firebase-ios-sdk(?:\.git)?";'\
'\s*requirement = {\s*)kind = upToNextMajorVersion;'\
'\s*minimumVersion = \d+\.\d+\.\d+;'\
'(\s*};'\
'\s*};)'
# Define the replacement regex based on the selected mode.
case "$MODE" in
--version)
if [[ $# -lt 1 ]]; then echo "Error: Missing version for --version"; exit 1; fi
VERSION="$1"
REPLACEMENT_REGEX="\1kind = branch;\n\t\t\t\tbranch = \"$VERSION\";\2"
;;
--prerelease)
COMMIT_HASH=$(git ls-remote https://github.com/firebase/firebase-ios-sdk.git refs/heads/main | cut -f1)
if [[ -z "$COMMIT_HASH" ]]; then
echo "Error: Failed to get remote revision for main branch."
exit 1
fi
REPLACEMENT_REGEX="\1kind = revision;\n\t\t\t\trevision = \"$COMMIT_HASH\";\2"
;;
--revision)
if [[ $# -lt 1 ]]; then echo "Error: Missing revision for --revision"; exit 1; fi
REVISION="$1"
REPLACEMENT_REGEX="\1kind = revision;\n\t\t\t\trevision = \"$REVISION\";\2"
;;
--branch)
if [[ $# -lt 1 ]]; then echo "Error: Missing branch name for --branch"; exit 1; fi
BRANCH_NAME="$1"
REPLACEMENT_REGEX="\1kind = branch;\n\t\t\t\tbranch = \"$BRANCH_NAME\";\2"
;;
*)
echo "Invalid mode: $MODE"
exit 1
;;
esac
# Make a temporary backup of the original file.
# This will be used to check if any changes were made.
TEMP_FILE=$(mktemp)
cp "$PBXPROJ_PATH" "$TEMP_FILE"
# Performs the replacement using Perl.
#
# -0777 Enables reading all input in one go (slurp), rather than line-by-line.
# -p Causes Perl to loop through the input line by line.
# -i Edits the file in place.
# -e Provides the expression to execute.
perl -0777 -i -pe "s#$REQUIREMENT_REGEX#$REPLACEMENT_REGEX#g" "$PBXPROJ_PATH" || {
echo "Failed to update the Xcode project's SPM dependency."
exit 1
}
# Silently compare the modified file with the temporary backup.
# If they are the same, cmp will return 0 (success), and the 'if' block will run.
if cmp -s "$PBXPROJ_PATH" "$TEMP_FILE"; then
echo "Failed to find and replace the firebase-ios-sdk dependency. Check the regex pattern and project file structure."
# Restore the original file from the backup
mv "$TEMP_FILE" "$PBXPROJ_PATH"
exit 1
fi
echo "Successfully updated SPM dependency in $PBXPROJ_PATH"
# Point SPM CI to the tip of `main` of
# https://github.com/google/GoogleAppMeasurement so that the release process
# can defer publishing the `GoogleAppMeasurement` tag until after testing.
export FIREBASECI_USE_LATEST_GOOGLEAPPMEASUREMENT=1