feat(version): add --signoff git flag

- ref Lerna PR [#2897](lerna/lerna#2897)

packages/cli/src/versionCommandOptions.ts

@@ -173,6 +173,10 @@ export const versionCommandOptions = {
     group: 'Version Command Options:',
     type: 'boolean',
   },
+  'signoff-git-commit': {
+    describe: 'Pass the `--signoff` flag to `git commit`.',
+    type: 'boolean',
+  },
   'sign-git-tag': {
     describe: 'Pass the `--sign` flag to `git tag`.',
     group: 'Version Command Options:',

packages/version/README.md

@@ -96,6 +96,7 @@ Running `ws-roller version --conventional-commits` without the above flags will
     - [`--no-private`](#--no-private)
     - [`--no-push`](#--no-push)
     - [`--preid`](#--preid)
+    - [`--signoff-git-commit`](#--signoff-git-commit)
     - [`--sign-git-commit`](#--sign-git-commit)
     - [`--sign-git-tag`](#--sign-git-tag)
     - [`--force-git-tag`](#--force-git-tag)
@@ -441,6 +442,12 @@ ws-roller version prepatch --preid next
 When run with this flag, `ws-roller version` will increment `premajor`, `preminor`, `prepatch`, or `prerelease` semver
 bumps using the specified [prerelease identifier](http://semver.org/#spec-item-9).
 
+### `--signoff-git-commit`
+
+Adds the `--signoff` flag to the git commit done by lerna version when executed.
+
+> Note: This is different from `--sign-git-commit` which is about gpg signatures.
+
 ### `--sign-git-commit`
 
 This option is analogous to the `npm version` [option](https://docs.npmjs.com/cli/v8/using-npm/config#sign-git-commit) of the same name.

packages/version/src/lib/git-commit.ts

@@ -9,7 +9,7 @@ import { exec } from '@ws-conventional-version-roller/core';
  * @param {{ amend: boolean; commitHooks: boolean; signGitCommit: boolean; }} gitOpts
  * @param {import('@lerna/child-process').ExecOpts} opts
  */
-export function gitCommit(message, { amend, commitHooks, signGitCommit }, opts, gitDryRun = false) {
+export function gitCommit(message, { amend, commitHooks, signGitCommit, signoffGitCommit }, opts, gitDryRun = false) {
   log.silly('gitCommit', message);
   const args = ['commit'];
 
@@ -21,6 +21,10 @@ export function gitCommit(message, { amend, commitHooks, signGitCommit }, opts,
     args.push('--gpg-sign');
   }
 
+  if (signoffGitCommit) {
+    args.push('--signoff');
+  }
+
   if (amend) {
     args.push('--amend', '--no-edit');
   } else if (message.indexOf(EOL) > -1) {

packages/version/src/versionCommand.ts

@@ -82,6 +82,7 @@ export class VersionCommand extends Command {
       granularPathspec = true,
       push = true,
       signGitCommit,
+      signoffGitCommit,
       signGitTag,
       forceGitTag,
       tagVersionPrefix = 'v',
@@ -110,6 +111,7 @@ export class VersionCommand extends Command {
       commitHooks,
       granularPathspec,
       signGitCommit,
+      signoffGitCommit,
       signGitTag,
       forceGitTag,
     };