feat(issue-32): override reviewers and assignees

README.md

@@ -62,6 +62,9 @@ This toold comes with some inputs that allow users to override the default behav
 | Title       | --title        | N            | Backporting pull request title                                                       | "{original-pr-title}"       |
 | Body       | --body        | N            | Backporting pull request body                                                           | "{original-pr-body}"       |
 | Body Prefix       | --body-prefix        | N            | Prefix to the backporting pull request body                                                          | "Backport: {original-pr-link}"       |
+| Reviewers       | --reviewers        | N            | Backporting pull request comma-separated reviewers list                                                           | []       |
+| Assignees       | --assignes        | N            | Backporting pull request comma-separated assignees list                                                           | []       |
+| No Reviewers Inheritance       | --no-inherit-reviewers        | N            | Considered only if reviewers is empty, if true keep reviewers as empty list, otherwise inherit from original pull request                                                           | false       |
 | Backport Branch Name       | --bp-branch-name        | N            | Name of the backporting pull request branch                                                           | bp-{target-branch}-{sha}       |
 | Dry Run       | -d, --dry-run        | N            | If enabled the tool does not push nor create anything remotely, use this to skip PR creation                                                           | false       |
 

action.yml

@@ -35,6 +35,16 @@ inputs:
   bp-branch-name:
     description: "Backporting PR branch name. Default is auto-generated from commit."
     required: false
+  reviewers:
+    description: "Comma separated list of reviewers for the backporting pull request."
+    required: false
+  assignees:
+    description: "Comma separated list of reviewers for the backporting pull request."
+    required: false
+  inherith-reviewers:
+    description: "If enabled and reviewers option is empty then inherit them from original pull request."
+    required: false
+    default: "true"
 
 runs:
   using: node16

dist/cli/index.js

@@ -30,6 +30,11 @@ runner.run();
 Object.defineProperty(exports, "__esModule", ({ value: true }));
 const commander_1 = __nccwpck_require__(4379);
 const package_json_1 = __nccwpck_require__(6625);
+function commaSeparatedList(value, _prev) {
+    // remove all whitespaces
+    const cleanedValue = value.trim();
+    return cleanedValue !== "" ? cleanedValue.replace(/\s/g, "").split(",") : [];
+}
 class CLIArgsParser {
     getCommand() {
         return new commander_1.Command(package_json_1.name)
@@ -45,7 +50,10 @@ class CLIArgsParser {
             .option("--title <bp-title>", "backport pr title, default original pr title prefixed by target branch.", undefined)
             .option("--body <bp-body>", "backport pr title, default original pr body prefixed by bodyPrefix.", undefined)
             .option("--body-prefix <bp-body-prefix>", "backport pr body prefix, default `backport <original-pr-link>`.", undefined)
-            .option("--bp-branch-name <bp-branch-name>", "backport pr branch name, default auto-generated by the commit.", undefined);
+            .option("--bp-branch-name <bp-branch-name>", "backport pr branch name, default auto-generated by the commit.", undefined)
+            .option("--reviewers <reviewers>", "comma separated list of reviewers for the backporting pull request.", commaSeparatedList, [])
+            .option("--assignees <assignees>", "comma separated list of assignees for the backporting pull request.", commaSeparatedList, [])
+            .option("--no-inherit-reviewers", "if provided and reviewers option is empty then inherit them from original pull request", true);
     }
     parse() {
         const opts = this.getCommand()
@@ -63,6 +71,9 @@ class CLIArgsParser {
             body: opts.body,
             bodyPrefix: opts.bodyPrefix,
             bpBranchName: opts.bpBranchName,
+            reviewers: opts.reviewers,
+            assignees: opts.assignees,
+            inheritReviewers: opts.inheritReviewers,
         };
     }
 }
@@ -151,11 +162,14 @@ class PullRequestConfigsParser extends configs_parser_1.default {
      * @returns {GitPullRequest}
      */
     getDefaultBackportPullRequest(originalPullRequest, args) {
-        const reviewers = [];
+        const reviewers = args.reviewers ?? [];
+        if (reviewers.length == 0 && args.inheritReviewers) {
+            // inherit only if args.reviewers is empty and args.inheritReviewers set to true
             reviewers.push(originalPullRequest.author);
             if (originalPullRequest.mergedBy) {
                 reviewers.push(originalPullRequest.mergedBy);
             }
+        }
         const bodyPrefix = args.bodyPrefix ?? `**Backport:** ${originalPullRequest.htmlUrl}\r\n\r\n`;
         const body = args.body ?? `${originalPullRequest.body}\r\n\r\nPowered by [BPer](https://github.com/lampajr/backporting).`;
         return {
@@ -163,6 +177,7 @@ class PullRequestConfigsParser extends configs_parser_1.default {
             title: args.title ?? `[${args.targetBranch}] ${originalPullRequest.title}`,
             body: `${bodyPrefix}${body}`,
             reviewers: [...new Set(reviewers)],
+            assignees: [...new Set(args.assignees)],
             targetRepo: originalPullRequest.targetRepo,
             sourceRepo: originalPullRequest.targetRepo,
             branchName: args.bpBranchName,
@@ -382,6 +397,7 @@ class GitHubMapper {
             merged: pr.merged ?? false,
             mergedBy: pr.merged_by?.login,
             reviewers: pr.requested_reviewers.filter(r => "login" in r).map((r => r?.login)),
+            assignees: pr.assignees.filter(r => "login" in r).map(r => r.login),
             sourceRepo: {
                 owner: pr.head.repo.full_name.split("/")[0],
                 project: pr.head.repo.full_name.split("/")[1],
@@ -453,13 +469,26 @@ class GitHubService {
                     owner: backport.owner,
                     repo: backport.repo,
                     pull_number: data.number,
-                    reviewers: backport.reviewers
+                    reviewers: backport.reviewers,
                 });
             }
             catch (error) {
                 this.logger.error(`Error requesting reviewers: ${error}`);
             }
         }
+        if (backport.assignees.length > 0) {
+            try {
+                await this.octokit.issues.addAssignees({
+                    owner: backport.owner,
+                    repo: backport.repo,
+                    issue_number: data.number,
+                    assignees: backport.assignees,
+                });
+            }
+            catch (error) {
+                this.logger.error(`Error setting assignees: ${error}`);
+            }
+        }
     }
     // UTILS
     /**
@@ -686,7 +715,8 @@ class Runner {
             base: configs.targetBranch,
             title: backportPR.title,
             body: backportPR.body,
-            reviewers: backportPR.reviewers
+            reviewers: backportPR.reviewers,
+            assignees: backportPR.assignees,
         };
         if (!configs.dryRun) {
             // 8. push the new branch to origin

dist/gha/index.js

@@ -41,12 +41,21 @@ class GHAArgsParser {
     }
     getOrDefault(key, defaultValue) {
         const value = (0, core_1.getInput)(key);
-        return (value !== undefined && value !== "") ? value : defaultValue;
+        return value !== "" ? value : defaultValue;
+    }
+    getAsCommaSeparatedList(key) {
+        // trim the value
+        const value = ((0, core_1.getInput)(key) ?? "").trim();
+        return value !== "" ? value.replace(/\s/g, "").split(",") : [];
+    }
+    getAsBooleanOrDefault(key, defaultValue) {
+        const value = (0, core_1.getInput)(key).trim();
+        return value !== "" ? value.toLowerCase() === "true" : defaultValue;
     }
     parse() {
         return {
-            dryRun: (0, core_1.getInput)("dry-run") === "true",
+            dryRun: this.getAsBooleanOrDefault("dry-run", false),
-            auth: (0, core_1.getInput)("auth") ? (0, core_1.getInput)("auth") : "",
+            auth: (0, core_1.getInput)("auth"),
             pullRequest: (0, core_1.getInput)("pull-request"),
             targetBranch: (0, core_1.getInput)("target-branch"),
             folder: this.getOrUndefined("folder"),
@@ -56,6 +65,9 @@ class GHAArgsParser {
             body: this.getOrUndefined("body"),
             bodyPrefix: this.getOrUndefined("body-prefix"),
             bpBranchName: this.getOrUndefined("bp-branch-name"),
+            reviewers: this.getAsCommaSeparatedList("reviewers"),
+            assignees: this.getAsCommaSeparatedList("assignees"),
+            inheritReviewers: !this.getAsBooleanOrDefault("no-inherit-reviewers", false),
         };
     }
 }
@@ -144,11 +156,14 @@ class PullRequestConfigsParser extends configs_parser_1.default {
      * @returns {GitPullRequest}
      */
     getDefaultBackportPullRequest(originalPullRequest, args) {
-        const reviewers = [];
+        const reviewers = args.reviewers ?? [];
+        if (reviewers.length == 0 && args.inheritReviewers) {
+            // inherit only if args.reviewers is empty and args.inheritReviewers set to true
             reviewers.push(originalPullRequest.author);
             if (originalPullRequest.mergedBy) {
                 reviewers.push(originalPullRequest.mergedBy);
             }
+        }
         const bodyPrefix = args.bodyPrefix ?? `**Backport:** ${originalPullRequest.htmlUrl}\r\n\r\n`;
         const body = args.body ?? `${originalPullRequest.body}\r\n\r\nPowered by [BPer](https://github.com/lampajr/backporting).`;
         return {
@@ -156,6 +171,7 @@ class PullRequestConfigsParser extends configs_parser_1.default {
             title: args.title ?? `[${args.targetBranch}] ${originalPullRequest.title}`,
             body: `${bodyPrefix}${body}`,
             reviewers: [...new Set(reviewers)],
+            assignees: [...new Set(args.assignees)],
             targetRepo: originalPullRequest.targetRepo,
             sourceRepo: originalPullRequest.targetRepo,
             branchName: args.bpBranchName,
@@ -375,6 +391,7 @@ class GitHubMapper {
             merged: pr.merged ?? false,
             mergedBy: pr.merged_by?.login,
             reviewers: pr.requested_reviewers.filter(r => "login" in r).map((r => r?.login)),
+            assignees: pr.assignees.filter(r => "login" in r).map(r => r.login),
             sourceRepo: {
                 owner: pr.head.repo.full_name.split("/")[0],
                 project: pr.head.repo.full_name.split("/")[1],
@@ -446,13 +463,26 @@ class GitHubService {
                     owner: backport.owner,
                     repo: backport.repo,
                     pull_number: data.number,
-                    reviewers: backport.reviewers
+                    reviewers: backport.reviewers,
                 });
             }
             catch (error) {
                 this.logger.error(`Error requesting reviewers: ${error}`);
             }
         }
+        if (backport.assignees.length > 0) {
+            try {
+                await this.octokit.issues.addAssignees({
+                    owner: backport.owner,
+                    repo: backport.repo,
+                    issue_number: data.number,
+                    assignees: backport.assignees,
+                });
+            }
+            catch (error) {
+                this.logger.error(`Error setting assignees: ${error}`);
+            }
+        }
     }
     // UTILS
     /**
@@ -679,7 +709,8 @@ class Runner {
             base: configs.targetBranch,
             title: backportPR.title,
             body: backportPR.body,
-            reviewers: backportPR.reviewers
+            reviewers: backportPR.reviewers,
+            assignees: backportPR.assignees,
         };
         if (!configs.dryRun) {
             // 8. push the new branch to origin

src/service/args/args.types.ts

@@ -13,4 +13,7 @@ export interface Args {
   body?: string, // backport pr title, default original pr body prefixed by bodyPrefix
   bodyPrefix?: string, // backport pr body prefix, default `backport <original-pr-link>`
   bpBranchName?: string, // backport pr branch name, default computed from commit
+  reviewers?: string[], // backport pr reviewers
+  assignees?: string[], // backport pr assignees
+  inheritReviewers: boolean, // if true and reviewers == [] then inherit reviewers from original pr
 }

src/service/args/cli/cli-args-parser.ts

@@ -3,6 +3,11 @@ import { Args } from "@bp/service/args/args.types";
 import { Command } from "commander";
 import { name, version, description } from "@bp/../package.json";
 
+function commaSeparatedList(value: string, _prev: unknown): string[] {
+  // remove all whitespaces
+  const cleanedValue: string = value.trim();
+  return cleanedValue !== "" ? cleanedValue.replace(/\s/g, "").split(",") : [];
+}
 
 export default class CLIArgsParser implements ArgsParser {
 
@@ -20,7 +25,10 @@ export default class CLIArgsParser implements ArgsParser {
       .option("--title <bp-title>", "backport pr title, default original pr title prefixed by target branch.", undefined)
       .option("--body <bp-body>", "backport pr title, default original pr body prefixed by bodyPrefix.", undefined)
       .option("--body-prefix <bp-body-prefix>", "backport pr body prefix, default `backport <original-pr-link>`.", undefined)
-      .option("--bp-branch-name <bp-branch-name>", "backport pr branch name, default auto-generated by the commit.", undefined);
+      .option("--bp-branch-name <bp-branch-name>", "backport pr branch name, default auto-generated by the commit.", undefined)
+      .option("--reviewers <reviewers>", "comma separated list of reviewers for the backporting pull request.", commaSeparatedList, [])
+      .option("--assignees <assignees>", "comma separated list of assignees for the backporting pull request.", commaSeparatedList, [])
+      .option("--no-inherit-reviewers", "if provided and reviewers option is empty then inherit them from original pull request", true);
   }
 
   parse(): Args {
@@ -40,6 +48,9 @@ export default class CLIArgsParser implements ArgsParser {
       body: opts.body,
       bodyPrefix: opts.bodyPrefix,
       bpBranchName: opts.bpBranchName,
+      reviewers: opts.reviewers,
+      assignees: opts.assignees,
+      inheritReviewers: opts.inheritReviewers,
     };
   }
 

src/service/args/gha/gha-args-parser.ts

@@ -16,13 +16,24 @@ export default class GHAArgsParser implements ArgsParser {
 
   public getOrDefault(key: string, defaultValue: string): string {
     const value = getInput(key);
-    return (value !== undefined && value !== "") ? value : defaultValue;
+    return value !== "" ? value : defaultValue;
+  }
+
+  public getAsCommaSeparatedList(key: string): string[] {
+    // trim the value
+    const value: string = (getInput(key) ?? "").trim();
+    return value !== "" ? value.replace(/\s/g, "").split(",") : []; 
+  }
+
+  public getAsBooleanOrDefault(key: string, defaultValue: boolean): boolean {
+    const value = getInput(key).trim();
+    return value !== "" ? value.toLowerCase() === "true" : defaultValue;
   }
 
   parse(): Args {
     return {
-      dryRun: getInput("dry-run") === "true",
+      dryRun: this.getAsBooleanOrDefault("dry-run", false),
-      auth: getInput("auth") ? getInput("auth") : "",
+      auth: getInput("auth"),
       pullRequest: getInput("pull-request"),
       targetBranch: getInput("target-branch"),
       folder: this.getOrUndefined("folder"),
@@ -32,6 +43,9 @@ export default class GHAArgsParser implements ArgsParser {
       body: this.getOrUndefined("body"),
       bodyPrefix: this.getOrUndefined("body-prefix"),
       bpBranchName: this.getOrUndefined("bp-branch-name"),
+      reviewers: this.getAsCommaSeparatedList("reviewers"),
+      assignees: this.getAsCommaSeparatedList("assignees"),
+      inheritReviewers: !this.getAsBooleanOrDefault("no-inherit-reviewers", false),
     };
   }
 

src/service/configs/pullrequest/pr-configs-parser.ts

@@ -44,11 +44,14 @@ export default class PullRequestConfigsParser extends ConfigsParser {
    * @returns {GitPullRequest}
    */
   private getDefaultBackportPullRequest(originalPullRequest: GitPullRequest, args: Args): GitPullRequest {
-    const reviewers = [];
+    const reviewers = args.reviewers ?? [];
+    if (reviewers.length == 0 && args.inheritReviewers) {
+      // inherit only if args.reviewers is empty and args.inheritReviewers set to true
       reviewers.push(originalPullRequest.author);
       if (originalPullRequest.mergedBy) {
         reviewers.push(originalPullRequest.mergedBy);  
       }
+    }
 
     const bodyPrefix = args.bodyPrefix ?? `**Backport:** ${originalPullRequest.htmlUrl}\r\n\r\n`;
     const body = args.body ?? `${originalPullRequest.body}\r\n\r\nPowered by [BPer](https://github.com/lampajr/backporting).`;
@@ -58,6 +61,7 @@ export default class PullRequestConfigsParser extends ConfigsParser {
       title: args.title ?? `[${args.targetBranch}] ${originalPullRequest.title}`, 
       body: `${bodyPrefix}${body}`,
       reviewers: [...new Set(reviewers)],
+      assignees: [...new Set(args.assignees)],
       targetRepo: originalPullRequest.targetRepo,
       sourceRepo: originalPullRequest.targetRepo,
       branchName: args.bpBranchName,

src/service/git/git.types.ts

@@ -9,6 +9,7 @@ export interface GitPullRequest {
   title: string,
   body: string,
   reviewers: string[],
+  assignees: string[],
   targetRepo: GitRepository,
   sourceRepo: GitRepository,
   nCommits: number, // number of commits in the pr
@@ -30,6 +31,7 @@ export interface BackportPullRequest {
   title: string, // pr title
   body: string, // pr body
   reviewers: string[], // pr list of reviewers
+  assignees: string[], // pr list of assignees
   branchName?: string,
 }
 

src/service/git/github/github-mapper.ts

@@ -15,6 +15,7 @@ export default class GitHubMapper {
       merged: pr.merged ?? false,
       mergedBy: pr.merged_by?.login,
       reviewers: pr.requested_reviewers.filter(r => "login" in r).map((r => (r as User)?.login)),
+      assignees: pr.assignees.filter(r => "login" in r).map(r => r.login),
       sourceRepo: {
         owner: pr.head.repo.full_name.split("/")[0],
         project: pr.head.repo.full_name.split("/")[1],

src/service/git/github/github-service.ts

@@ -58,12 +58,25 @@ export default class GitHubService implements GitService {
           owner: backport.owner,
           repo: backport.repo,
           pull_number: (data as PullRequest).number,
-          reviewers: backport.reviewers
+          reviewers: backport.reviewers,
         });
       } catch (error) {
         this.logger.error(`Error requesting reviewers: ${error}`);
       }
     }
+
+    if (backport.assignees.length > 0) {
+      try {
+        await this.octokit.issues.addAssignees({
+          owner: backport.owner,
+          repo: backport.repo,
+          issue_number: (data as PullRequest).number,
+          assignees: backport.assignees,
+        });
+      } catch (error) {
+        this.logger.error(`Error setting assignees: ${error}`);
+      }
+    }
   }
 
   // UTILS

src/service/runner/runner.ts

@@ -107,7 +107,8 @@ export default class Runner {
       base: configs.targetBranch,
       title: backportPR.title,
       body: backportPR.body,
-      reviewers: backportPR.reviewers
+      reviewers: backportPR.reviewers,
+      assignees: backportPR.assignees,
     };
 
     if (!configs.dryRun) {

test/service/args/cli/cli-args-parser.test.ts

@@ -1,6 +1,6 @@
 import { Args } from "@bp/service/args/args.types";
 import CLIArgsParser from "@bp/service/args/cli/cli-args-parser";
-import { addProcessArgs, resetProcessArgs } from "../../../support/utils";
+import { addProcessArgs, resetProcessArgs, expectArrayEqual } from "../../../support/utils";
 
 describe("cli args parser", () => {
   let parser: CLIArgsParser;
@@ -33,6 +33,9 @@ describe("cli args parser", () => {
     expect(args.body).toEqual(undefined);
     expect(args.bodyPrefix).toEqual(undefined);
     expect(args.bpBranchName).toEqual(undefined);
+    expect(args.reviewers).toEqual([]);
+    expect(args.assignees).toEqual([]);
+    expect(args.inheritReviewers).toEqual(true);
   });
 
   test("valid execution [default, long]", () => {
@@ -55,6 +58,9 @@ describe("cli args parser", () => {
     expect(args.body).toEqual(undefined);
     expect(args.bodyPrefix).toEqual(undefined);
     expect(args.bpBranchName).toEqual(undefined);
+    expect(args.reviewers).toEqual([]);
+    expect(args.assignees).toEqual([]);
+    expect(args.inheritReviewers).toEqual(true);
   });
 
   test("valid execution [override, short]", () => {
@@ -84,6 +90,9 @@ describe("cli args parser", () => {
     expect(args.body).toEqual(undefined);
     expect(args.bodyPrefix).toEqual(undefined);
     expect(args.bpBranchName).toEqual(undefined);
+    expect(args.reviewers).toEqual([]);
+    expect(args.assignees).toEqual([]);
+    expect(args.inheritReviewers).toEqual(true);
   });
 
   test("valid execution [override, long]", () => {
@@ -107,6 +116,11 @@ describe("cli args parser", () => {
       "New Body Prefix",
       "--bp-branch-name",
       "bp_branch_name",
+      "--reviewers",
+      "al , john,  jack",
+      "--assignees",
+      " pippo,pluto, paperino",
+      "--no-inherit-reviewers",
     ]);
 
     const args: Args = parser.parse();
@@ -121,6 +135,9 @@ describe("cli args parser", () => {
     expect(args.body).toEqual("New Body");
     expect(args.bodyPrefix).toEqual("New Body Prefix");
     expect(args.bpBranchName).toEqual("bp_branch_name");
+    expectArrayEqual(["al", "john", "jack"], args.reviewers!);
+    expectArrayEqual(["pippo", "pluto", "paperino"], args.assignees!);
+    expect(args.inheritReviewers).toEqual(false);
   });
 
 });

test/service/args/gha/gha-args-parser.test.ts

@@ -1,6 +1,6 @@
 import { Args } from "@bp/service/args/args.types";
 import GHAArgsParser from "@bp/service/args/gha/gha-args-parser";
-import { spyGetInput } from "../../../support/utils";
+import { spyGetInput, expectArrayEqual } from "../../../support/utils";
 
 describe("gha args parser", () => {
   let parser: GHAArgsParser;
@@ -25,12 +25,23 @@ describe("gha args parser", () => {
   test("getOrUndefined", () => {
     spyGetInput({
       "present": "value",
-      "empty": ""
+      "empty": "",
     });
     expect(parser.getOrUndefined("empty")).toStrictEqual(undefined);
     expect(parser.getOrUndefined("present")).toStrictEqual("value");
   });
 
+  test("getAsCommaSeparatedList", () => {
+    spyGetInput({
+      "present": "value1, value2 ,   value3",
+      "empty": "",
+      "blank": "   ",
+    });
+    expectArrayEqual(parser.getAsCommaSeparatedList("present")!, ["value1", "value2", "value3"]);
+    expect(parser.getAsCommaSeparatedList("empty")).toStrictEqual([]);
+    expect(parser.getAsCommaSeparatedList("blank")).toStrictEqual([]);
+  });
+
   test("valid execution [default]", () => {
     spyGetInput({
       "target-branch": "target",
@@ -47,8 +58,9 @@ describe("gha args parser", () => {
     expect(args.pullRequest).toEqual("https://localhost/whatever/pulls/1");
     expect(args.title).toEqual(undefined);
     expect(args.body).toEqual(undefined);
-    expect(args.bodyPrefix).toEqual(undefined);
+    expect(args.reviewers).toEqual([]);
-    expect(args.bpBranchName).toEqual(undefined);
+    expect(args.assignees).toEqual([]);
+    expect(args.inheritReviewers).toEqual(true);
   });
 
   test("valid execution [override]", () => {
@@ -63,6 +75,9 @@ describe("gha args parser", () => {
       "body": "New Body",
       "body-prefix": "New Body Prefix",
       "bp-branch-name": "bp_branch_name",
+      "reviewers": "al , john,  jack",
+      "assignees": " pippo,pluto, paperino",
+      "no-inherit-reviewers": "true",
     });
 
     const args: Args = parser.parse();
@@ -77,6 +92,9 @@ describe("gha args parser", () => {
     expect(args.body).toEqual("New Body");
     expect(args.bodyPrefix).toEqual("New Body Prefix");
     expect(args.bpBranchName).toEqual("bp_branch_name");
+    expectArrayEqual(["al", "john", "jack"], args.reviewers!);
+    expectArrayEqual(["pippo", "pluto", "paperino"], args.assignees!);
+    expect(args.inheritReviewers).toEqual(false);
   });
 
 });

test/service/configs/pullrequest/pr-configs-parser.test.ts

@@ -35,7 +35,10 @@ describe("pull request config parser", () => {
       pullRequest: mergedPRUrl,
       targetBranch: "prod",
       gitUser: "GitHub",
-      gitEmail: "noreply@github.com"
+      gitEmail: "noreply@github.com",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     const configs: Configs = await parser.parseAndValidate(args);
@@ -59,6 +62,7 @@ describe("pull request config parser", () => {
       title: "PR Title",
       body: "Please review and merge",
       reviewers: ["requested-gh-user", "gh-user"],
+      assignees: [],
       targetRepo: {
         owner: "owner",
         project: "reponame",
@@ -79,6 +83,7 @@ describe("pull request config parser", () => {
       title: "[prod] PR Title",
       body: "**Backport:** https://github.com/owner/reponame/pull/2368\r\n\r\nPlease review and merge\r\n\r\nPowered by [BPer](https://github.com/lampajr/backporting).",
       reviewers: ["gh-user", "that-s-a-user"],
+      assignees: [],
       targetRepo: {
         owner: "owner",
         project: "reponame",
@@ -103,7 +108,10 @@ describe("pull request config parser", () => {
       targetBranch: "prod",
       folder: "/tmp/test",
       gitUser: "GitHub",
-      gitEmail: "noreply@github.com"
+      gitEmail: "noreply@github.com",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     const configs: Configs = await parser.parseAndValidate(args);
@@ -125,7 +133,10 @@ describe("pull request config parser", () => {
       pullRequest: mergedPRUrl,
       targetBranch: "prod",
       gitUser: "GitHub",
-      gitEmail: "noreply@github.com"
+      gitEmail: "noreply@github.com",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     const configs: Configs = await parser.parseAndValidate(args);
@@ -146,7 +157,10 @@ describe("pull request config parser", () => {
       pullRequest: openPRUrl,
       targetBranch: "prod",
       gitUser: "GitHub",
-      gitEmail: "noreply@github.com"
+      gitEmail: "noreply@github.com",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     const configs: Configs = await parser.parseAndValidate(args);
@@ -169,6 +183,7 @@ describe("pull request config parser", () => {
       title: "PR Title",
       body: "Please review and merge",
       reviewers: ["gh-user"],
+      assignees: [],
       targetRepo: {
         owner: "owner",
         project: "reponame",
@@ -193,13 +208,17 @@ describe("pull request config parser", () => {
       pullRequest: notMergedPRUrl,
       targetBranch: "prod",
       gitUser: "GitHub",
-      gitEmail: "noreply@github.com"
+      gitEmail: "noreply@github.com",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     expect(async () => await parser.parseAndValidate(args)).rejects.toThrow("Provided pull request is closed and not merged!");
   });
 
-  test("override backport pr data", async () => {
+  
+  test("override backport pr data inherting reviewers", async () => {
     const args: Args = {
       dryRun: false,
       auth: "",
@@ -210,6 +229,9 @@ describe("pull request config parser", () => {
       title: "New Title",
       body: "New Body",
       bodyPrefix: "New Body Prefix -",
+      reviewers: [],
+      assignees: [],
+      inheritReviewers: true,
     };
 
     const configs: Configs = await parser.parseAndValidate(args);
@@ -233,6 +255,7 @@ describe("pull request config parser", () => {
       title: "PR Title",
       body: "Please review and merge",
       reviewers: ["requested-gh-user", "gh-user"],
+      assignees: [],
       targetRepo: {
         owner: "owner",
         project: "reponame",
@@ -254,6 +277,159 @@ describe("pull request config parser", () => {
       title: "New Title",
       body: "New Body Prefix -New Body",
       reviewers: ["gh-user", "that-s-a-user"],
+      assignees: [],
+      targetRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      sourceRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      bpBranchName: undefined,
+      nCommits: 0,
+      commits: []
+    });
+  });
+
+  test("override backport pr reviewers and assignees", async () => {
+    const args: Args = {
+      dryRun: false,
+      auth: "",
+      pullRequest: mergedPRUrl,
+      targetBranch: "prod",
+      gitUser: "Me",
+      gitEmail: "me@email.com",
+      title: "New Title",
+      body: "New Body",
+      bodyPrefix: "New Body Prefix -",
+      reviewers: ["user1", "user2"],
+      assignees: ["user3", "user4"],
+      inheritReviewers: true, // not taken into account
+    };
+
+    const configs: Configs = await parser.parseAndValidate(args);
+
+    expect(configs.dryRun).toEqual(false);
+    expect(configs.git).toEqual({
+      user: "Me",
+      email: "me@email.com"
+    });
+    expect(configs.auth).toEqual("");
+    expect(configs.targetBranch).toEqual("prod");
+    expect(configs.folder).toEqual(process.cwd() + "/bp");
+    expect(configs.originalPullRequest).toEqual({
+      number: 2368,
+      author: "gh-user",
+      url: "https://api.github.com/repos/owner/reponame/pulls/2368",
+      htmlUrl: "https://github.com/owner/reponame/pull/2368",
+      state: "closed",
+      merged: true,
+      mergedBy: "that-s-a-user",
+      title: "PR Title",
+      body: "Please review and merge",
+      reviewers: ["requested-gh-user", "gh-user"],
+      assignees: [],
+      targetRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      sourceRepo: {
+        owner: "fork",
+        project: "reponame",
+        cloneUrl: "https://github.com/fork/reponame.git"
+      },
+      bpBranchName: undefined,
+      nCommits: 2,
+      commits: ["28f63db774185f4ec4b57cd9aaeb12dbfb4c9ecc"],
+    });
+    expect(configs.backportPullRequest).toEqual({
+      author: "Me",
+      url: undefined,
+      htmlUrl: undefined,
+      title: "New Title",
+      body: "New Body Prefix -New Body",
+      reviewers: ["user1", "user2"],
+      assignees: ["user3", "user4"],
+      targetRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      sourceRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      bpBranchName: undefined,
+      nCommits: 0,
+      commits: []
+    });
+  });
+
+  test("override backport pr empty reviewers", async () => {
+    const args: Args = {
+      dryRun: false,
+      auth: "",
+      pullRequest: mergedPRUrl,
+      targetBranch: "prod",
+      gitUser: "Me",
+      gitEmail: "me@email.com",
+      title: "New Title",
+      body: "New Body",
+      bodyPrefix: "New Body Prefix -",
+      reviewers: [],
+      assignees: ["user3", "user4"],
+      inheritReviewers: false,
+    };
+
+    const configs: Configs = await parser.parseAndValidate(args);
+
+    expect(configs.dryRun).toEqual(false);
+    expect(configs.git).toEqual({
+      user: "Me",
+      email: "me@email.com"
+    });
+    expect(configs.auth).toEqual("");
+    expect(configs.targetBranch).toEqual("prod");
+    expect(configs.folder).toEqual(process.cwd() + "/bp");
+    expect(configs.originalPullRequest).toEqual({
+      number: 2368,
+      author: "gh-user",
+      url: "https://api.github.com/repos/owner/reponame/pulls/2368",
+      htmlUrl: "https://github.com/owner/reponame/pull/2368",
+      state: "closed",
+      merged: true,
+      mergedBy: "that-s-a-user",
+      title: "PR Title",
+      body: "Please review and merge",
+      reviewers: ["requested-gh-user", "gh-user"],
+      assignees: [],
+      targetRepo: {
+        owner: "owner",
+        project: "reponame",
+        cloneUrl: "https://github.com/owner/reponame.git"
+      },
+      sourceRepo: {
+        owner: "fork",
+        project: "reponame",
+        cloneUrl: "https://github.com/fork/reponame.git"
+      },
+      bpBranchName: undefined,
+      nCommits: 2,
+      commits: ["28f63db774185f4ec4b57cd9aaeb12dbfb4c9ecc"],
+    });
+    expect(configs.backportPullRequest).toEqual({
+      author: "Me",
+      url: undefined,
+      htmlUrl: undefined,
+      title: "New Title",
+      body: "New Body Prefix -New Body",
+      reviewers: [],
+      assignees: ["user3", "user4"],
       targetRepo: {
         owner: "owner",
         project: "reponame",

test/service/runner/cli-runner.test.ts

@@ -188,7 +188,8 @@ describe("cli runner", () => {
         base: "target", 
         title: "[target] PR Title", 
         body: expect.stringContaining("**Backport:** https://github.com/owner/reponame/pull/2368"),
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["gh-user", "that-s-a-user"],
+        assignees: [],
       }
     );
   });
@@ -227,7 +228,8 @@ describe("cli runner", () => {
         base: "target", 
         title: "[target] PR Title", 
         body: expect.stringContaining("**Backport:** https://github.com/owner/reponame/pull/8632"),
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["gh-user", "that-s-a-user"],
+        assignees: [],
       }
     );
   });
@@ -278,7 +280,8 @@ describe("cli runner", () => {
         base: "target", 
         title: "[target] PR Title", 
         body: expect.stringContaining("**Backport:** https://github.com/owner/reponame/pull/4444"),
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["gh-user", "that-s-a-user"],
+        assignees: [],
       }
     );
   });
@@ -297,6 +300,10 @@ describe("cli runner", () => {
       "New Body Prefix - ",
       "--bp-branch-name",
       "bp_branch_name",
+      "--reviewers",
+      "user1,user2",
+      "--assignees",
+      "user3,user4"
     ]);
     
     await runner.execute();
@@ -326,7 +333,60 @@ describe("cli runner", () => {
         base: "target", 
         title: "New Title", 
         body: "New Body Prefix - New Body",
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["user1", "user2"],
+        assignees: ["user3", "user4"],
+      }
+    );
+  });
+
+  test("set empty reviewers", async () => {
+    addProcessArgs([
+      "-tb",
+      "target",
+      "-pr",
+      "https://github.com/owner/reponame/pull/2368",
+      "--title",
+      "New Title",
+      "--body",
+      "New Body",
+      "--body-prefix",
+      "New Body Prefix - ",
+      "--bp-branch-name",
+      "bp_branch_name",
+      "--no-inherit-reviewers",
+      "--assignees",
+      "user3,user4",
+    ]);
+    
+    await runner.execute();
+
+    const cwd = process.cwd() + "/bp";
+
+    expect(GitCLIService.prototype.clone).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.clone).toBeCalledWith("https://github.com/owner/reponame.git", cwd, "target");
+
+    expect(GitCLIService.prototype.createLocalBranch).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.createLocalBranch).toBeCalledWith(cwd, "bp_branch_name");
+    
+    expect(GitCLIService.prototype.fetch).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.fetch).toBeCalledWith(cwd, "pull/2368/head:pr/2368");
+
+    expect(GitCLIService.prototype.cherryPick).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.cherryPick).toBeCalledWith(cwd, "28f63db774185f4ec4b57cd9aaeb12dbfb4c9ecc");
+
+    expect(GitCLIService.prototype.push).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.push).toBeCalledWith(cwd, "bp_branch_name");
+
+    expect(GitHubService.prototype.createPullRequest).toBeCalledTimes(1);
+    expect(GitHubService.prototype.createPullRequest).toBeCalledWith({
+        owner: "owner", 
+        repo: "reponame", 
+        head: "bp_branch_name", 
+        base: "target", 
+        title: "New Title", 
+        body: "New Body Prefix - New Body",
+        reviewers: [],
+        assignees: ["user3", "user4"],
       }
     );
   });

test/service/runner/gha-runner.test.ts

@@ -87,7 +87,8 @@ describe("gha runner", () => {
         base: "target", 
         title: "[target] PR Title", 
         body: expect.stringContaining("**Backport:** https://github.com/owner/reponame/pull/2368"),
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["gh-user", "that-s-a-user"],
+        assignees: [],
       }
     );
   });
@@ -134,7 +135,8 @@ describe("gha runner", () => {
         base: "target", 
         title: "[target] PR Title", 
         body: expect.stringContaining("**Backport:** https://github.com/owner/reponame/pull/4444"),
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["gh-user", "that-s-a-user"],
+        assignees: [],
       }
     );
   });
@@ -147,6 +149,8 @@ describe("gha runner", () => {
       "body": "New Body",
       "body-prefix": "New Body Prefix - ",
       "bp-branch-name": "bp_branch_name",
+      "reviewers": "user1, user2",
+      "assignees": "user3, user4",
     });
 
     await runner.execute();
@@ -176,7 +180,54 @@ describe("gha runner", () => {
         base: "target", 
         title: "New Title", 
         body: "New Body Prefix - New Body",
-        reviewers: ["gh-user", "that-s-a-user"]
+        reviewers: ["user1", "user2"],
+        assignees: ["user3", "user4"],
+      }
+    );
+  });
+
+  test("set empty reviewers", async () => {
+    spyGetInput({
+      "target-branch": "target",
+      "pull-request": "https://github.com/owner/reponame/pull/2368",
+      "title": "New Title",
+      "body": "New Body",
+      "body-prefix": "New Body Prefix - ",
+      "bp-branch-name": "bp_branch_name",
+      "reviewers": "",
+      "assignees": "user3, user4",
+      "no-inherit-reviewers": "true",
+    });
+
+    await runner.execute();
+
+    const cwd = process.cwd() + "/bp";
+
+    expect(GitCLIService.prototype.clone).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.clone).toBeCalledWith("https://github.com/owner/reponame.git", cwd, "target");
+
+    expect(GitCLIService.prototype.createLocalBranch).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.createLocalBranch).toBeCalledWith(cwd, "bp_branch_name");
+    
+    expect(GitCLIService.prototype.fetch).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.fetch).toBeCalledWith(cwd, "pull/2368/head:pr/2368");
+
+    expect(GitCLIService.prototype.cherryPick).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.cherryPick).toBeCalledWith(cwd, "28f63db774185f4ec4b57cd9aaeb12dbfb4c9ecc");
+
+    expect(GitCLIService.prototype.push).toBeCalledTimes(1);
+    expect(GitCLIService.prototype.push).toBeCalledWith(cwd, "bp_branch_name");
+
+    expect(GitHubService.prototype.createPullRequest).toBeCalledTimes(1);
+    expect(GitHubService.prototype.createPullRequest).toBeCalledWith({
+        owner: "owner", 
+        repo: "reponame", 
+        head: "bp_branch_name", 
+        base: "target", 
+        title: "New Title", 
+        body: "New Body Prefix - New Body",
+        reviewers: [],
+        assignees: ["user3", "user4"],
       }
     );
   });

test/support/utils.ts

@@ -15,3 +15,13 @@ export const spyGetInput = (obj: any) => {
     return obj[name] ?? "";
   });
 };
+
+/**
+ * Check array equality performing sort on both sides.
+ * DO NOT USE this if ordering matters
+ * @param actual 
+ * @param expected 
+ */
+export const expectArrayEqual = (actual: unknown[], expected: unknown[]) => {
+  expect(actual.sort()).toEqual(expected.sort());
+};