Upload evergreen test results to codecov.io (#1736)

* Upload test result report to codecov.io from Evergreen

* Write server version and topology to expansion file

* Add version/topology flag to test result upload

* Download checksum for binary

* Use conditional when calling codecov

Author: alcaeus

.evergreen/config/functions.yml

@@ -126,6 +126,26 @@ functions:
     - command: attach.results
       params:
         file_location: "${DRIVERS_TOOLS}/results.json"
+    - command: shell.exec
+      params:
+        working_dir: src
+        script: |
+          ${PREPARE_SHELL}
+          if [ -f test-results.xml ]; then
+            curl -Os https://cli.codecov.io/latest/linux/codecov
+            curl -Os https://cli.codecov.io/latest/linux/codecov.SHA256SUM
+            shasum -a 256 -c codecov.SHA256SUM
+            sudo chmod +x codecov
+            ./codecov upload-process \
+              --report-type test_results \
+              --disable-search \
+              --fail-on-error \
+              --token ${CODECOV_TOKEN} \
+              --flag "${MONGODB_VERSION}-${TOPOLOGY}" \
+              --file test-results.xml
+          else
+            echo "Skipping codecov test result upload"
+          fi
 
   "bootstrap mongo-orchestration":
     - command: shell.exec
@@ -143,6 +163,12 @@ functions:
           LOAD_BALANCER=${LOAD_BALANCER} \
           REQUIRE_API_VERSION=${REQUIRE_API_VERSION} \
           bash ${DRIVERS_TOOLS}/.evergreen/run-orchestration.sh
+    - command: shell.exec
+      params:
+        script: |
+          printf "\n" >> mo-expansion.yml
+          printf "MONGODB_VERSION: '%s'\n" "${MONGODB_VERSION}" >> mo-expansion.yml
+          printf "TOPOLOGY: '%s'\n" "${TOPOLOGY}" >> mo-expansion.yml
     # run-orchestration generates expansion file with MONGODB_URI and CRYPT_SHARED_LIB_PATH
     - command: expansions.update
       params: