Allow overriding path of temporary files.

src/actions-util.ts

@@ -45,6 +45,11 @@ export function getRequiredEnvParam(paramName: string): string {
   return value;
 }
 
+export function getTemporaryDirectory(): string {
+  const value = process.env["CODEQL_ACTION_TEMP"];
+  return value !== undefined ? value : getRequiredEnvParam("RUNNER_TEMP");
+}
+
 /**
  * Ensures all required environment variables are set in the context of a local run.
  */

src/analyze-action.ts

@@ -64,10 +64,7 @@ async function run() {
       return;
     }
     const logger = getActionsLogger();
-    config = await getConfig(
-      actionsUtil.getRequiredEnvParam("RUNNER_TEMP"),
-      logger
-    );
+    config = await getConfig(actionsUtil.getTemporaryDirectory(), logger);
     if (config === undefined) {
       throw new Error(
         "Config file could not be found at expected location. Has the 'init' action been called?"

src/autobuild-action.ts

@@ -57,7 +57,7 @@ async function run() {
     }
 
     const config = await config_utils.getConfig(
-      actionsUtil.getRequiredEnvParam("RUNNER_TEMP"),
+      actionsUtil.getTemporaryDirectory(),
       logger
     );
     if (config === undefined) {

src/init-action.ts

@@ -126,7 +126,7 @@ async function run() {
     const initCodeQLResult = await initCodeQL(
       actionsUtil.getOptionalInput("tools"),
       apiDetails,
-      actionsUtil.getRequiredEnvParam("RUNNER_TEMP"),
+      actionsUtil.getTemporaryDirectory(),
       actionsUtil.getRequiredEnvParam("RUNNER_TOOL_CACHE"),
       "actions",
       logger
@@ -139,7 +139,7 @@ async function run() {
       actionsUtil.getOptionalInput("queries"),
       actionsUtil.getOptionalInput("config-file"),
       parseRepositoryNwo(actionsUtil.getRequiredEnvParam("GITHUB_REPOSITORY")),
-      actionsUtil.getRequiredEnvParam("RUNNER_TEMP"),
+      actionsUtil.getTemporaryDirectory(),
       actionsUtil.getRequiredEnvParam("RUNNER_TOOL_CACHE"),
       codeql,
       actionsUtil.getRequiredEnvParam("GITHUB_WORKSPACE"),