From 69b588da86265db1e581d13c1c438640b0a9b853 Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Mon, 9 May 2022 21:19:24 -0500
Subject: [PATCH] Add current-version cli command

---
 README.rst             |  6 ++++++
 tbump/cli.py           | 10 ++++++++++
 tbump/test/test_cli.py |  9 +++++++++
 3 files changed, 25 insertions(+)

diff --git a/README.rst b/README.rst
index a2416a8..adc6081 100644
--- a/README.rst
+++ b/README.rst
@@ -150,6 +150,12 @@ You can use ``--non-interactive`` to disable this behavior.
 
 If you only want to bump the files without performing any git actions or running the hook commands, use the ``--only-patch`` option.
 
+The current version of the project can be found using the command:
+
+.. code-block:: console
+
+    $ tbump current-version
+
 Advanced configuration
 ----------------------
 
diff --git a/tbump/cli.py b/tbump/cli.py
index 7152488..8342370 100644
--- a/tbump/cli.py
+++ b/tbump/cli.py
@@ -23,6 +23,7 @@
     """
 Usage:
   tbump [options] <new_version>
+  tbump [options] current-version
   tbump [options] init [--pyproject] <current_version>
   tbump --help
   tbump --version
@@ -92,6 +93,15 @@ def run(cmd: List[str]) -> None:
         return
 
     new_version = opt_dict["<new_version>"]
+
+    if new_version == 'current-version':
+        config_file = get_config_file(
+            working_path, specified_config_path=specified_config_path
+        )
+        config = config_file.get_config()
+        ui.info(config.current_version)
+        return
+
     bump_options = BumpOptions(
         working_path=working_path,
         new_version=new_version,
diff --git a/tbump/test/test_cli.py b/tbump/test/test_cli.py
index 76740b9..a9d3358 100644
--- a/tbump/test/test_cli.py
+++ b/tbump/test/test_cli.py
@@ -1,4 +1,5 @@
 from pathlib import Path
+import subprocess
 from typing import Any, Optional
 
 import pytest
@@ -123,6 +124,8 @@ def test_end_to_end_using_tbump_toml(test_repo: Path) -> None:
 
     assert bump_done(test_repo, previous_commit)
 
+    output = subprocess.check_output(["tbump", "current-version"], cwd=test_repo)
+    assert output.decode('utf-8').strip() == '1.2.41-alpha-2'
 
 def test_end_to_end_using_pyproject_toml(test_pyproject_repo: Path) -> None:
     _, previous_commit = run_git_captured(test_pyproject_repo, "rev-parse", "HEAD")
@@ -138,6 +141,9 @@ def test_end_to_end_using_pyproject_toml(test_pyproject_repo: Path) -> None:
     actual = foo_py.read_text()
     assert "0.2.0" in actual
 
+    output = subprocess.check_output(["tbump", "current-version"], cwd=test_pyproject_repo)
+    assert output.decode('utf-8').strip() == '0.2.0'
+
 
 def test_using_specified_path(
     test_repo: Path,
@@ -160,6 +166,9 @@ def test_using_specified_path(
 
     assert files_bumped(test_repo, config_path=config_path)
 
+    output = subprocess.check_output(["tbump", "current-version", "-C", str(test_repo), '--config', str(config_path)], cwd=test_repo)
+    assert output.decode('utf-8').strip() == '1.2.41-alpha-2'
+
 
 def test_dry_run_interactive(test_repo: Path) -> None:
     _, previous_commit = run_git_captured(test_repo, "rev-parse", "HEAD")