add runtime version information

8 files changed, 52 insertions, 5 deletions

diff --git a/.github/workflows/basic.yml b/.github/workflows/basic.yml
index c5cbeb0..7621e52 100644
--- a/.github/workflows/basic.yml
+++ b/.github/workflows/basic.yml
@@ -72,6 +72,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
@@ -81,14 +83,21 @@ jobs:
         with:
           path: boost_*.tar.gz
           key: 'boost_${{ matrix.boost-version }}'
+      - name: 'Install package & dependencies'
+        run: pip install -q -e .
+      - name: Check that scripts are runnable
+        run: |
+          boost-download --version
+          boost-build --version
+          cmake-build --version
       - name: Build Boost
         run: |
-          python -m project.boost.download --cache . '${{ matrix.boost-version }}' boost
-          python -m project.boost.build -- boost --with-filesystem
+          boost-download --cache . '${{ matrix.boost-version }}' boost
+          boost-build -- boost --with-filesystem
       - name: Build example project
         run: |
           $src_dir = Join-Path examples boost
-          python -m project.cmake.build --boost boost --install install -- $src_dir
+          cmake-build --boost boost --install install -- $src_dir
       - name: Run example project
         run: ./.ci/run_foo.ps1 (Join-Path (Get-Location).Path install bin foo)
 
@@ -101,6 +110,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/project/boost/build.py b/project/boost/build.py
index fd73b6e..bd4fd6b 100644
--- a/project/boost/build.py
+++ b/project/boost/build.py
@@ -37,6 +37,7 @@ from project.os import on_linux_like
 from project.platform import Platform
 from project.toolset import Toolset, ToolsetVersion
 from project.utils import normalize_path, setup_logging
+import project.version
 
 
 DEFAULT_PLATFORMS = (Platform.AUTO,)
@@ -150,6 +151,8 @@ def _parse_args(argv=None):
         description=__doc__,
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
+    project.version.add_to_arg_parser(parser)
+
     platform_options = '/'.join(map(str, Platform.all()))
     configuration_options = '/'.join(map(str, Configuration.all()))
     # These are used to put the built libraries into proper stage/
diff --git a/project/boost/download.py b/project/boost/download.py
index 3f1366e..b5bf684 100644
--- a/project/boost/download.py
+++ b/project/boost/download.py
@@ -27,6 +27,7 @@ import urllib.request
 from project.boost.archive import Archive, PermanentStorage, TemporaryStorage
 from project.boost.version import Version
 from project.utils import normalize_path, mkdir_parent, retry, setup_logging
+import project.version
 
 
 class Download:
@@ -127,6 +128,8 @@ def _parse_args(argv=None):
         description=__doc__,
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
+    project.version.add_to_arg_parser(parser)
+
     parser.add_argument('--unpack', metavar='DIR', dest='unpack_dir',
                         type=normalize_path,
                         help='directory to unpack the archive to')
diff --git a/project/ci/boost.py b/project/ci/boost.py
index 0d89b75..65f4da0 100644
--- a/project/ci/boost.py
+++ b/project/ci/boost.py
@@ -11,6 +11,7 @@ from project.boost.download import Download, download
 from project.ci.dirs import Dirs
 from project.linkage import Linkage
 from project.utils import setup_logging
+import project.version
 
 
 def _parse_args(argv=None):
@@ -21,6 +22,8 @@ def _parse_args(argv=None):
         description=Dirs.get_boost_help(),
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
+    project.version.add_to_arg_parser(parser)
+
     parser.add_argument('--link', metavar='LINKAGE',
                         nargs='*', type=Linkage.parse,
                         help='how the libraries are linked')
diff --git a/project/ci/cmake.py b/project/ci/cmake.py
index 1f49f78..13929f7 100644
--- a/project/ci/cmake.py
+++ b/project/ci/cmake.py
@@ -10,6 +10,7 @@ import sys
 from project.ci.dirs import Dirs
 from project.cmake.build import BuildParameters, build
 from project.utils import setup_logging
+import project.version
 
 
 def _parse_args(argv=None):
@@ -20,6 +21,8 @@ def _parse_args(argv=None):
         description=Dirs.get_cmake_help(),
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
+    project.version.add_to_arg_parser(parser)
+
     # The hint parameter is basically a workaround for when this is run on a
     # CI, _but_ testing another CI is desired.  This shouldn't be used in a
     # real CI workflow.
diff --git a/project/cmake/build.py b/project/cmake/build.py
index 3c4853d..9c98ba3 100644
--- a/project/cmake/build.py
+++ b/project/cmake/build.py
@@ -30,6 +30,7 @@ from project.configuration import Configuration
 from project.platform import Platform
 from project.toolset import Toolset, ToolsetVersion
 from project.utils import normalize_path, mkdir_parent, run, setup_logging
+import project.version
 
 
 DEFAULT_PLATFORM = Platform.AUTO
@@ -211,6 +212,8 @@ def _parse_args(argv=None):
         description=__doc__,
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
+    project.version.add_to_arg_parser(parser)
+
     parser.add_argument('--build', metavar='DIR', dest='build_dir',
                         type=normalize_path,
                         help='build directory (temporary directory unless specified)')
diff --git a/project/version.py b/project/version.py
new file mode 100644
index 0000000..8cff333
--- /dev/null
+++ b/project/version.py
@@ -0,0 +1,15 @@
+try:
+    import importlib.metadata as metadata
+except ImportError:
+    import importlib_metadata as metadata
+
+
+try:
+    __version__ = metadata.version('cmake_common')
+except Exception:
+    __version__ = 'unknown'
+
+
+def add_to_arg_parser(parser):
+    parser.add_argument('--version', '-V', action='version',
+                        version=f'%(prog)s {__version__}')
diff --git a/pyproject.toml b/pyproject.toml
index f1052b4..6ee788c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,16 +1,20 @@
 [build-system]
-requires = ["setuptools>=61.0"]
+requires = ["setuptools>=61.0", "setuptools-scm"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "cmake_common"
 description = "Utilities to help develop C++/CMake projects"
 license = {text = "MIT"}
-version = "3.4.1"
+dynamic = ["version"]
 authors = [{name = "Egor Tensin", email = "Egor.Tensin@gmail.com"}]
 readme = "README.md"
 requires-python = ">=3.6"
 
+dependencies = [
+    'importlib-metadata ~= 4.0 ; python_version < "3.8"',
+]
+
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
@@ -38,3 +42,5 @@ script-files = [
 
 [tool.setuptools.data-files]
 "share/cmake" = ["common.cmake"]
+
+[tool.setuptools_scm]