Add local patch script.

Author: zzhlogin

CONTRIBUTING.md

@@ -5,6 +5,16 @@ documentation, we really appreciate your help. Take a look through this document
 experience with your contribution.
 
 
+## Build ADOT Java Agent Locally
+
+This ADOT repository includes patching logic for OpenTelemetry upstream repositories. To build the ADOT Java agent locally, you need to run the patching script first:
+
+```bash
+./scripts/local_patch.sh
+./gradlew build
+```
+
+
 ## Reporting Bugs/Feature Requests
 
 We're always happy to hear about any bugs or features requests using GitHub issues.

appsignals-tests/README.md

@@ -45,6 +45,9 @@ From the root of this project execute:
 ## login to public ECR
 aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws
 
+# Run the patching script
+./scripts/local_patch.sh
+
 # Run the tests
 ./gradlew appsignals-tests:contract-tests:contractTests
 ```

scripts/local_patch.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+# Enable debug mode, fail on any command that fail in this script and fail on unset variables
+set -x -e -u
+
+if [[ ! -f .github/patches/versions ]]; then
+  echo "No versions file found. Skipping patching"
+  exit 0
+fi
+
+rm -rf ~/.m2/repository/
+source .github/patches/versions
+
+
+# Patching opentelemetry-java
+OTEL_JAVA_PATCH=".github/patches/opentelemetry-java.patch"
+if [[ -f "$OTEL_JAVA_PATCH" ]]; then
+  echo "Patching opentelemetry-java"
+  git clone https://github.com/open-telemetry/opentelemetry-java.git
+  cd opentelemetry-java
+
+  echo "Checking out tag ${OTEL_JAVA_VERSION}"
+  git checkout ${OTEL_JAVA_VERSION} -b tag-${OTEL_JAVA_VERSION}
+  patch -p1 < ../${OTEL_JAVA_PATCH}
+  git commit -a -m "ADOT Patch release"
+
+  echo "Building patched opentelemetry-java"
+  ./gradlew clean assemble
+  ./gradlew publishToMavenLocal
+  cd -
+
+  echo "Cleaning up opentelemetry-java"
+  rm -rf opentelemetry-java
+else
+  echo "Skiping patching opentelemetry-java"
+fi
+
+
+# Patching opentelemetry-java-contrib
+OTEL_JAVA_CONTRIB_PATCH=".github/patches/opentelemetry-java-contrib.patch"
+if [[ -f "$OTEL_JAVA_CONTRIB_PATCH" ]]; then
+  echo "Patching opentelemetry-java-contrib"
+  git clone https://github.com/open-telemetry/opentelemetry-java-contrib.git
+  cd opentelemetry-java-contrib
+
+  echo "Checking out tag ${OTEL_JAVA_CONTRIB_VERSION}"
+  git checkout ${OTEL_JAVA_CONTRIB_VERSION} -b tag-${OTEL_JAVA_CONTRIB_VERSION}
+  patch -p1 < "../${OTEL_JAVA_CONTRIB_PATCH}"
+  git commit -a -m "ADOT Patch release"
+
+  echo "Building patched opentelemetry-java-contrib"
+  ./gradlew clean assemble
+  ./gradlew publishToMavenLocal
+  cd -
+
+  echo "Cleaning up opentelemetry-java-contrib"
+  rm -rf opentelemetry-java-contrib
+else
+  echo "Skipping patching opentelemetry-java-contrib"
+fi
+
+
+# Patching opentelemetry-java-instrumentation
+OTEL_JAVA_INSTRUMENTATION_PATCH=".github/patches/opentelemetry-java-instrumentation.patch"
+if [[ -f "$OTEL_JAVA_INSTRUMENTATION_PATCH" ]]; then
+  echo "Patching opentelemetry-java-instrumentation"
+  git clone https://github.com/open-telemetry/opentelemetry-java-instrumentation.git
+  cd opentelemetry-java-instrumentation
+
+  echo "Checking out tag ${OTEL_JAVA_INSTRUMENTATION_VERSION}"
+  git checkout ${OTEL_JAVA_INSTRUMENTATION_VERSION} -b tag-${OTEL_JAVA_INSTRUMENTATION_VERSION}
+  patch -p1 < "../${OTEL_JAVA_INSTRUMENTATION_PATCH}"
+  git commit -a -m "ADOT Patch release"
+
+  echo "Building patched opentelemetry-java-instrumentation"
+  ./gradlew clean assemble
+  ./gradlew publishToMavenLocal
+  cd -
+
+  echo "Cleaning up opentelemetry-java-instrumentation"
+  rm -rf opentelemetry-java-instrumentation
+else
+  echo "Skipping patching opentelemetry-java-instrumentation"
+fi