Change printversion to be generic readini

Signed-off-by: Jim Hawkins <sjjhsjjhsjjh@gmail.com>

.github/workflows/windows-build-version.yml

@@ -15,7 +15,7 @@ jobs:
       matrix:
         python-version: ["3.10"]
     outputs:
-      version_number: ${{ steps.get_version_number.outputs.version_number }}
+      VersionNumber: ${{ steps.get_version_number.outputs.VersionNumber }}
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
@@ -25,7 +25,8 @@ jobs:
     - name: Get version number
       id: get_version_number
       run: |
-        python src/utils/printversion.py version_number >> "$GITHUB_OUTPUT"
+        python src/utils/readini.py\
+          assets/Version.ini Release VersionNumber >> "$GITHUB_OUTPUT"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -59,7 +60,7 @@ jobs:
     #     pyinstaller --distpath dist-portable build-portable.spec
     - name: Demo version number
       run: |
-        New-Item delme-${{needs.check.outputs.version_number}}.txt -type file
+        New-Item delme-${{needs.check.outputs.VersionNumber}}.txt -type file
 
         
     # - name: Zip Portable 

src/utils/readini.py

@@ -0,0 +1,46 @@
+# Standard library imports in alphabetical order.
+#
+# INI file parser, used to get the version number.
+# https://docs.python.org/3/library/configparser.html
+from configparser import ConfigParser
+#
+# Object oriented path handling.
+# https://docs.python.org/3/library/pathlib.html
+from pathlib import Path
+
+def get_ini_value(iniPath, section, key):
+    ini = ConfigParser()
+    # Use .read_file() not .read() so that FileNotFoundError is raised if the
+    # file doesn't exist.
+    ini.read_file(Path(iniPath).open())
+    return ini[section][key]
+
+if __name__ == "__main__":
+    # Argument parsing module.
+    # https://docs.python.org/3/library/argparse.html
+    from argparse import ArgumentParser
+
+    argumentParser = ArgumentParser(
+        description=
+        'Print a value from a .ini file in a key=value format for a GitHub'
+        ' workflow output.'
+    )
+    argumentParser.add_argument(
+        "path", metavar="File.ini", type=Path, help='Path of the .ini file.')
+    argumentParser.add_argument(
+        "section", type=str, help=
+        'Within the file, the section name that contains the key.'
+        ' Section names are enclosed in square brackets in .ini files, like'
+        ' [Release].')
+    argumentParser.add_argument(
+        "key", type=str, help=
+        'Within the section, the key whose value is to be printed.')
+    argumentParser.add_argument(
+        "alias", type=str, nargs='?', help=
+        'Optional key to appear in the output.'
+        ' Default is to use the same key that appears in the .ini file.')
+    arguments = argumentParser.parse_args()
+    print('='.join((
+        arguments.key if arguments.alias is None else arguments.alias,
+        get_ini_value(arguments.path, arguments.section, arguments.key)
+    )))