resolve

README.md

@@ -6,10 +6,19 @@ This project is aimed to provide drop-in replacement for `docker-compose`,
 and it's very useful for certain cases because:
 
 - can run rootless
-- only depend on `podman` and Python3 and [PyYAML](https://pyyaml.org/)
 - no daemon, no setup.
 - can be used by developers to run single-machine containerized stacks using single familiar YAML file
 
+This project only depend on:
+
+* `podman`
+* Python3
+* [PyYAML](https://pyyaml.org/)
+* [python-dotenv](https://pypi.org/project/python-dotenv/)
+
+And it's formed as a single python file script that you can drop into your PATH and run.
+
+
 For production-like single-machine containerized environment consider
 
 - [k3s](https://k3s.io) | [k3s github](https://github.com/rancher/k3s)
@@ -20,9 +29,12 @@ For production-like single-machine containerized environment consider
 For the real thing (multi-node clusters) check any production
 OpenShift/Kubernetes distribution like [OKD](https://www.okd.io/minishift/).
 
-## NOTE
+## Versions
 
-This project is still under development.
+If you have legacy version of `podman` (before 3.x) you might need to stick with legacy `podman-compose` `0.1.x` branch.
+The legacy branch 0.1.x uses mappings and workarounds to compensate for rootless limitations.
+
+Modern podman versions (>=3.4) do not have those limitations and thus you can use latest and stable 1.x branch.
 
 ## Installation
 

podman_compose.py

@@ -32,8 +32,8 @@ except ImportError:
 # import fnmatch
 # fnmatch.fnmatchcase(env, "*_HOST")
 
-import json
 import yaml
+from dotenv import dotenv_values
 
 __version__ = '0.1.9'
 
@@ -1001,6 +1001,10 @@ def resolve_extends(services, service_names, environ):
         new_service = rec_merge({}, from_service, service)
         services[name] = new_service
 
+def dotenv_to_dict(dotenv_path):
+    if not os.path.isfile(dotenv_path):
+        return {}
+    return dotenv_values(dotenv_path)
 
 class PodmanCompose:
     def __init__(self):
@@ -1113,10 +1117,7 @@ class PodmanCompose:
 
         dotenv_path = os.path.join(dirname, ".env")
         self.environ = dict(os.environ)
-        if os.path.isfile(dotenv_path):
-            with open(dotenv_path, 'r') as f:
-                dotenv_ls = [l.strip() for l in f if l.strip() and not l.startswith('#')]
-                self.environ.update(dict([l.split("=", 1) for l in dotenv_ls if "=" in l]))
+        self.environ.update(dotenv_to_dict(dotenv_path))
         # TODO: should read and respect those env variables
         # see: https://docs.docker.com/compose/reference/envvars/
         # see: https://docs.docker.com/compose/env-file/

requirements.txt

@@ -3,3 +3,5 @@
 # process, which may cause wedges in the gate later.
 
 pyyaml
+python-dotenv
+

setup.py

@@ -36,7 +36,8 @@ setup(
     include_package_data=True,
     license='GPL-2.0-only',
     install_requires=[
-        'pyyaml'
+        'pyyaml',
+        'python-dotenv',
     ],
     # test_suite='tests',
     # tests_require=[