✨ only update option

README.md

@@ -157,7 +157,11 @@ is explicitly passed, this problem can be solved by just removing it.
 
 ### `only_create`
 
-**Optional** Only create a new comment if there is no existing one, otherwise do nothing. Only `true` is allowed. Just skip this item when you don't need it.
+**Optional** Only create a new comment if there is no existing one, otherwise do nothing. Only `true` is allowed. Just skip this item when you don't need it. This options has higher priority than hide_and_recreate, hide.
+
+### `only_update`
+
+**Optional** Only update a exist comment if there is existing one, otherwise do nothing. Only `true` is allowed. Just skip this item when you don't need it.
 
 ### `hide`
 

__tests__/config.test.ts

@@ -5,6 +5,7 @@ beforeEach(() => {
   process.env["INPUT_RECREATE"] = "false"
   process.env["INPUT_DELETE"] = "false"
   process.env["INPUT_ONLY_CREATE"] = "false"
+  process.env["INPUT_ONLY_UPDATE"] = "false"
   process.env["INPUT_HIDE"] = "false"
   process.env["INPUT_HIDE_AND_RECREATE"] = "false"
   process.env["INPUT_HIDE_CLASSIFY"] = "OUTDATED"
@@ -25,6 +26,7 @@ afterEach(() => {
   delete process.env["INPUT_RECREATE"]
   delete process.env["INPUT_DELETE"]
   delete process.env["INPUT_ONLY_CREATE"]
+  delete process.env["INPUT_ONLY_UPDATE"]
   delete process.env["INPUT_HIDE"]
   delete process.env["INPUT_HIDE_AND_RECREATE"]
   delete process.env["INPUT_HIDE_CLASSIFY"]

action.yml

@@ -22,6 +22,10 @@ inputs:
     description: "only create a new comment if there is no existing one, otherwise do nothing. Only `true` is allowed. Just skip this item when you don't need it. This options has higher priority than hide_and_recreate, hide."
     default: "false"
     required: false
+  only_update:
+    description: "only update a exist comment if there is existing one, otherwise do nothing. Only `true` is allowed. Just skip this item when you don't need it."
+    default: "false"
+    required: false
   hide_details:
     description: "hide summary tags in the previously created comment. Only `true` is allowed. Just skip this item when you don't need it."
     default: "false"

src/config.ts

@@ -25,6 +25,9 @@ export const deleteOldComment = core.getBooleanInput("delete", {required: true})
 export const onlyCreateComment = core.getBooleanInput("only_create", {
   required: true
 })
+export const onlyUpdateComment = core.getBooleanInput("only_update", {
+  required: true
+})
 export const hideOldComment = core.getBooleanInput("hide", {required: true})
 export const githubToken = core.getInput("GITHUB_TOKEN", {required: true})
 export const ignoreEmpty = core.getBooleanInput("ignore_empty", {

src/main.ts

@@ -14,7 +14,8 @@ import {
   recreate,
   repo,
   ignoreEmpty,
-  onlyCreateComment
+  onlyCreateComment,
+  onlyUpdateComment
 } from "./config"
 import {
   createComment,
@@ -47,6 +48,10 @@ async function run(): Promise<undefined> {
       throw new Error("delete and recreate cannot be both set to true")
     }
 
+    if (onlyCreateComment && onlyUpdateComment) {
+      throw new Error("only_create and only_update cannot be both set to true")
+    }
+
     if (hideOldComment && hideAndRecreate) {
       throw new Error("hide and hide_and_recreate cannot be both set to true")
     }
@@ -67,6 +72,9 @@ async function run(): Promise<undefined> {
     }
 
     if (!previous) {
+      if (onlyUpdateComment) {
+        return
+      }
       await createComment(octokit, repo, pullRequestNumber, body, header)
       return
     }