Running conditionally precommit_and_push job

Author: lsierant

.evergreen.yml

@@ -335,6 +335,16 @@ tasks:
           working_dir: src/github.com/mongodb/mongodb-kubernetes
           binary: scripts/evergreen/precommit_bump.sh
 
+  - name: run_conditionally_precommit_and_push
+    tags: [ "patch-run" ]
+    commands:
+      - func: clone
+      - func: run_task_conditionally
+        vars:
+          condition_script: scripts/evergreen/should_run_precommit_and_push.sh
+          variant: run_pre_commit
+          task: run_precommit_and_push
+
   - name: rebuild_all_agents
     # this enables us to run this manually (patch) and rebuild all agent versions to verify
     # Dockerfile, script changes etc.
@@ -1831,7 +1841,7 @@ buildvariants:
     run_on:
       - ubuntu2404-small
     tasks:
-      - name: run_precommit_and_push
+      - name: run_conditionally_precommit_and_push
 
   - name: init_tests_with_olm
     display_name: init_tests_with_olm

scripts/evergreen/should_run_precommit_and_push.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# This file is a condition script used for conditionally executing evergreen task for running precommit and pushing (run_precommit_and_push).
+# It checks if the branch matches patterns that require auto-bump functionality.
+# Exit code 0 means the task should run, exit code != 0 means it should be skipped.
+
+set -Eeou pipefail
+source scripts/dev/set_env_context.sh
+
+ORIGINAL_BRANCH=""
+# Detect the original branch (same commit, but not the evg-pr-test-* branch which evg creates)
+ORIGINAL_BRANCH=$(git for-each-ref --format='%(refname:short) %(objectname)' refs/remotes/origin | grep "$(git rev-parse HEAD)" | grep -v "evg-pr-test-" | awk '{print $1}' | sed 's|^origin/||' | head -n 1 || true)
+
+if [[ -z "${ORIGINAL_BRANCH}" ]]; then
+  echo "Fork: Could not determine the original branch. Skipping precommit_and_push task."
+  exit 1
+fi
+echo "Detected original branch: ${ORIGINAL_BRANCH}"
+
+REQUIRED_PATTERNS=(
+  "^dependabot/"
+  "_version_bump$"
+  "^enterprise-operator-release-"
+)
+
+echo "Checking branch '${ORIGINAL_BRANCH}' against required patterns:"
+
+MATCH_FOUND=false
+for pattern in "${REQUIRED_PATTERNS[@]}"; do
+  if [[ "${ORIGINAL_BRANCH}" =~ ${pattern} ]]; then
+    MATCH_FOUND=true
+    echo "Match found: '${ORIGINAL_BRANCH}' matches pattern '${pattern}'"
+    break
+  fi
+done
+
+if [[ "${MATCH_FOUND}" == false ]]; then
+  echo "Branch '${ORIGINAL_BRANCH}' does not match any required patterns. Skipping precommit_and_push task."
+  printf " - %s\n" "${REQUIRED_PATTERNS[@]}"
+  exit 1
+fi
+
+echo "Branch matches required patterns. Precommit and push task should run."
+exit 0