feat: allow overriding commit identity

Add optional user_name and user_email inputs so workflows can control git commit identity while preserving the current actor-based defaults. Update local tests and README examples to cover the new override behavior.

Author: ChristophShyper

README.md

@@ -60,6 +60,8 @@ This action supports three tag levels for flexible versioning:
           amend: false
           commit_prefix: "[AUTO]"
           commit_message: "Automatic commit"
+          user_name: ""
+          user_email: ""
           signing_mode: ""
           signing_key: ""
           signing_passphrase: ""
@@ -79,6 +81,8 @@ This action supports three tag levels for flexible versioning:
 | `amend`                   | No       | `false`          | Whether to make an amendment to the previous commit (`--amend`). Can be combined with `commit_message` to change the commit message.                          |
 | `commit_prefix`           | No       | `""`             | Prefix added to commit message. Combines with `commit_message`.                                                                                               |
 | `commit_message`          | No       | `""`             | Commit message to set. Combines with `commit_prefix`. Can be used with `amend` to change the commit message.                                                  |
+| `user_name`               | No       | `""`             | Git `user.name` used for created commits. Defaults to `${{ github.actor }}` when empty.                                                                       |
+| `user_email`              | No       | `""`             | Git `user.email` used for created commits. Defaults to `${{ github.actor }}@users.noreply.<organization_domain>` when empty.                                 |
 | `signing_mode`            | No       | `""`             | Commit signing mode. Supported values are `gpg` and `ssh`. Leave empty to disable signing.                                                                    |
 | `signing_key`             | No       | `""`             | Signing key material. For `gpg`, provide an ASCII-armored private key export. For `ssh`, provide a private key in OpenSSH or PEM format.                     |
 | `signing_passphrase`      | No       | `""`             | Optional passphrase for the signing key. Passphrase-protected GPG keys are supported. Encrypted SSH signing keys are rejected in the current runtime.         |
@@ -222,6 +226,24 @@ jobs:
           commit_message: "Update README"
 ```
 
+### 👤 Custom commit identity example
+Override the git author/committer identity used by the action.
+
+```yaml
+- name: Commit and push with custom identity
+  uses: devops-infra/action-commit-push@v1.4.0
+  with:
+    github_token: ${{ secrets.GITHUB_TOKEN }}
+    commit_message: "test(commit-push): custom identity"
+    user_name: "Release Automation"
+    user_email: "release-bot@example.com"
+```
+
+When `user_name` and `user_email` are empty, the action defaults to:
+
+- `user.name = ${{ github.actor }}`
+- `user.email = ${{ github.actor }}@users.noreply.<organization_domain>`
+
 ## 🔏 Commit Signing
 
 This action can sign generated commits by configuring repository-local git signing settings at runtime.

action.yml

@@ -22,6 +22,14 @@ inputs:
     description: Commit message to set
     required: false
     default: ""
+  user_name:
+    description: Git user.name to use for created commits. Defaults to GITHUB_ACTOR when empty.
+    required: false
+    default: ""
+  user_email:
+    description: Git user.email to use for created commits. Defaults to GITHUB_ACTOR@users.noreply.<organization_domain> when empty.
+    required: false
+    default: ""
   signing_mode:
     description: Commit signing mode. Supported values are gpg and ssh.
     required: false

entrypoint.sh

@@ -10,6 +10,8 @@ echo "  add_timestamp:           ${INPUT_ADD_TIMESTAMP}"
 echo "  amend:                   ${INPUT_AMEND}"
 echo "  commit_prefix:           ${INPUT_COMMIT_PREFIX}"
 echo "  commit_message:          ${INPUT_COMMIT_MESSAGE}"
+echo "  user_name:               ${INPUT_USER_NAME}"
+echo "  user_email:              ${INPUT_USER_EMAIL}"
 echo "  signing_mode:            ${INPUT_SIGNING_MODE}"
 echo "  force:                   ${INPUT_FORCE}"
 echo "  force_with_lease:        ${INPUT_FORCE_WITH_LEASE}"
@@ -242,8 +244,8 @@ echo "[INFO] Using repository path: ${REPO_DIR}"
 
 # Set git credentials
 git -C "${REPO_DIR}" remote set-url origin "https://${GITHUB_ACTOR}:${GITHUB_TOKEN}@${INPUT_ORGANIZATION_DOMAIN}/${GITHUB_REPOSITORY}"
-git -C "${REPO_DIR}" config user.name "${GITHUB_ACTOR}"
-git -C "${REPO_DIR}" config user.email "${GITHUB_ACTOR}@users.noreply.${INPUT_ORGANIZATION_DOMAIN}"
+git -C "${REPO_DIR}" config user.name "${INPUT_USER_NAME:-${GITHUB_ACTOR}}"
+git -C "${REPO_DIR}" config user.email "${INPUT_USER_EMAIL:-${GITHUB_ACTOR}@users.noreply.${INPUT_ORGANIZATION_DOMAIN}}"
 setup_commit_signing
 
 cd "${REPO_DIR}"

tests/docker/local-image.yml

@@ -134,6 +134,42 @@ commandTests:
         git -C /tmp/ws config gpg.format ssh
         git -C /tmp/ws config gpg.ssh.allowedSignersFile /tmp/allowed_signers
         git -C /tmp/ws verify-commit HEAD
+
+  - name: Entrypoint overrides commit identity
+    command: bash
+    args:
+      - -lc
+      - |
+        set -euo pipefail
+        rm -rf /tmp/ws /tmp/remote.git /tmp/github_output.txt
+        mkdir -p /tmp/ws
+        git init /tmp/ws
+        git -C /tmp/ws config user.name test
+        git -C /tmp/ws config user.email test@example.com
+        touch /tmp/ws/.keep
+        git -C /tmp/ws add .
+        git -C /tmp/ws commit -m init
+        git init --bare /tmp/remote.git
+        git -C /tmp/ws remote add origin /tmp/remote.git
+        echo "identity override" > /tmp/ws/e2e-identity.txt
+        GITHUB_WORKSPACE=/tmp/ws \
+        GITHUB_ACTOR=tester \
+        GITHUB_REPOSITORY=owner/repo \
+        GITHUB_OUTPUT=/tmp/github_output.txt \
+        GITHUB_TOKEN=fake \
+        INPUT_ORGANIZATION_DOMAIN=github.com \
+        INPUT_REPOSITORY_PATH=. \
+        INPUT_AMEND=false \
+        INPUT_ALLOW_EMPTY_COMMIT=false \
+        INPUT_TARGET_BRANCH='' \
+        INPUT_COMMIT_MESSAGE='identity override commit' \
+        INPUT_USER_NAME='Release Automation' \
+        INPUT_USER_EMAIL='release-bot@example.com' \
+        /entrypoint.sh
+        test "$(git -C /tmp/ws log -1 --format=%an)" = "Release Automation"
+        test "$(git -C /tmp/ws log -1 --format=%ae)" = "release-bot@example.com"
+        test "$(git -C /tmp/ws log -1 --format=%cn)" = "Release Automation"
+        test "$(git -C /tmp/ws log -1 --format=%ce)" = "release-bot@example.com"
 fileExistenceTests:
   - name: entrypoint exists
     path: /entrypoint.sh