Add prerelease and body options

src/main.ts

@@ -9,9 +9,12 @@ import * as glob from 'glob'
 type RepoAssetsResp = Endpoints['GET /repos/:owner/:repo/releases/:release_id/assets']['response']
 type ReleaseByTagResp = Endpoints['GET /repos/:owner/:repo/releases/tags/:tag']['response']
 type CreateReleaseResp = Endpoints['POST /repos/:owner/:repo/releases']['response']
+type UploadAssetResp = Endpoints['POST /repos/:owner/:repo/releases/:release_id/assets{?name,label}']['response']
 
 async function get_release_by_tag(
   tag: string,
+  prerelease: boolean,
+  body: string,
   octokit: Octokit
 ): Promise<ReleaseByTagResp | CreateReleaseResp> {
   try {
@@ -29,8 +32,8 @@ async function get_release_by_tag(
       return await octokit.repos.createRelease({
         ...github.context.repo,
         tag_name: tag,
-        draft: false,
-        prerelease: true
+        prerelease: prerelease,
+        body: body
       })
     } else {
       throw error
@@ -43,9 +46,9 @@ async function upload_to_release(
   file: string,
   asset_name: string,
   tag: string,
-  overwrite: string,
+  overwrite: boolean,
   octokit: Octokit
-): Promise<void> {
+): Promise<undefined | string> {
   const stat = fs.statSync(file)
   if (!stat.isFile()) {
     core.debug(`Skipping ${file}, since its not a file`)
@@ -61,7 +64,7 @@ async function upload_to_release(
   })
   const duplicate_asset = assets.data.find(a => a.name === asset_name)
   if (duplicate_asset !== undefined) {
-    if (overwrite === 'true') {
+    if (overwrite) {
       core.debug(
         `An asset called ${asset_name} already exists in release ${tag} so we'll overwrite it.`
       )
@@ -71,7 +74,7 @@ async function upload_to_release(
       })
     } else {
       core.setFailed(`An asset called ${asset_name} already exists.`)
-      return
+      return duplicate_asset.browser_download_url
     }
   } else {
     core.debug(
@@ -80,34 +83,41 @@ async function upload_to_release(
   }
 
   core.debug(`Uploading ${file} to ${asset_name} in release ${tag}.`)
-  await octokit.repos.uploadReleaseAsset({
-    url: release.data.upload_url,
-    name: asset_name,
-    data: file_bytes,
-    headers: {
-      'content-type': 'binary/octet-stream',
-      'content-length': file_size
+  const uploaded_asset: UploadAssetResp = await octokit.repos.uploadReleaseAsset(
+    {
+      url: release.data.upload_url,
+      name: asset_name,
+      data: file_bytes,
+      headers: {
+        'content-type': 'binary/octet-stream',
+        'content-length': file_size
+      }
     }
-  })
+  )
+  return uploaded_asset.data.browser_download_url
 }
 
 async function run(): Promise<void> {
   try {
+    // Get the inputs from the workflow file: https://github.com/actions/toolkit/tree/master/packages/core#inputsoutputs
     const token = core.getInput('repo_token', {required: true})
     const file = core.getInput('file', {required: true})
-    const file_glob = core.getInput('file_glob')
     const tag = core.getInput('tag', {required: true}).replace('refs/tags/', '')
-    const overwrite = core.getInput('overwrite')
+
+    const file_glob = core.getInput('file_glob') == 'true' ? true : false
+    const overwrite = core.getInput('overwrite') == 'true' ? true : false
+    const prerelease = core.getInput('prerelease') == 'true' ? true : false
+    const body = core.getInput('body')
 
     const octokit: Octokit = github.getOctokit(token)
-    const release = await get_release_by_tag(tag, octokit)
+    const release = await get_release_by_tag(tag, prerelease, body, octokit)
 
-    if (file_glob === 'true') {
+    if (file_glob) {
       const files = glob.sync(file)
       if (files.length > 0) {
         for (const file of files) {
           const asset_name = path.basename(file)
-          await upload_to_release(
+          const asset_download_url = await upload_to_release(
             release,
             file,
             asset_name,
@@ -115,6 +125,7 @@ async function run(): Promise<void> {
             overwrite,
             octokit
           )
+          core.setOutput('browser_download_url', asset_download_url)
         }
       } else {
         core.setFailed('No files matching the glob pattern found.')
@@ -123,7 +134,7 @@ async function run(): Promise<void> {
       const asset_name = core
         .getInput('asset_name', {required: true})
         .replace(/\$tag/g, tag)
-      await upload_to_release(
+      const asset_download_url = await upload_to_release(
         release,
         file,
         asset_name,
@@ -131,6 +142,7 @@ async function run(): Promise<void> {
         overwrite,
         octokit
       )
+      core.setOutput('browser_download_url', asset_download_url)
     }
   } catch (error) {
     core.setFailed(error.message)