package: add class for pnpm

CHANGES.rst

@@ -1,6 +1,10 @@
 Changes
 =======
 
+Version <next>
+
+- Add ``PNPMPackage``
+
 Version 0.2.0 (released 2023-11-27)
 
 - Added ``shell`` argument.

pynpm/__init__.py

@@ -2,6 +2,7 @@
 #
 # This file is part of PyNPM
 # Copyright (C) 2017 CERN.
+# Copyright (C) 2025 Graz University of Technology.
 #
 # PyNPM is free software; you can redistribute it and/or modify
 # it under the terms of the Revised BSD License; see LICENSE file for
@@ -11,8 +12,8 @@
 
 from __future__ import absolute_import, print_function
 
-from .package import NPMPackage, YarnPackage
+from .package import NPMPackage, PNPMPackage, YarnPackage
 
 __version__ = "0.2.0"
 
-__all__ = ("__version__", "NPMPackage", "YarnPackage")
+__all__ = ("__version__", "NPMPackage", "PNPMPackage", "YarnPackage")

pynpm/package.py

@@ -3,6 +3,7 @@
 # This file is part of PyNPM
 # Copyright (C) 2017 CERN.
 # Copyright (C) 2023 Rambaud Pierrick.
+# Copyright (C) 2025 Graz University of Technology.
 #
 # PyNPM is free software; you can redistribute it and/or modify
 # it under the terms of the Revised BSD License; see LICENSE file for
@@ -96,3 +97,29 @@ def __init__(self, filepath, yarn_bin="yarn", commands=None, shell=False):
         super(YarnPackage, self).__init__(
             filepath, npm_bin=yarn_bin, commands=commands or ["install"], shell=shell
         )
+
+
+class PNPMPackage(NPMPackage):
+    """API to a PNPM ``package.json.``"""
+
+    def __init__(self, filepath, npm_bin="pnpm", commands=None, shell=False):
+        """Construct."""
+        super().__init__(
+            filepath=filepath, npm_bin=npm_bin, commands=commands, shell=shell
+        )
+
+    def _run_npm(self, command, *args, **kwargs):
+        """Run a PNPM command.
+
+        By default the call is blocking until PNPM is finished and output
+        is directed to stdout. If ``wait=False`` is passed to the method,
+        you get a handle to the process (return value of ``subprocess.Popen``).
+
+        :param command: PNPM command to run.
+        :param args: List of arguments.
+        :param wait: Wait for PNPM command to finish.
+        """
+        if command == "install":
+            args = ["--shamefully-hoist"]
+
+        return super()._run_npm(command, *args, **kwargs)