pip: Add support for pyproject.toml

pip/flatpak-pip-generator

@@ -28,6 +28,8 @@ parser.add_argument('--cleanup', choices=['scripts', 'all'],
                     help='Select what to clean up after build')
 parser.add_argument('--requirements-file', '-r',
                     help='Specify requirements.txt file')
+parser.add_argument('--pyproject-file',
+                    help='Specify pyproject.toml file')
 parser.add_argument('--build-only', action='store_const',
                     dest='cleanup', const='all',
                     help='Clean up all files after build')
@@ -57,6 +59,18 @@ parser.add_argument('--ignore-errors', action='store_true',
                     help='Ignore errors when downloading packages')
 opts = parser.parse_args()
 
+if opts.requirements_file and opts.pyproject_file:
+    exit('Can\'t use both requirements and pyproject files at the same time')
+
+if opts.pyproject_file:
+    try:
+        from tomllib import load as toml_load
+    except ModuleNotFoundError:
+        try:
+            from tomli import load as toml_load
+        except ModuleNotFoundError:
+            exit('tomli modules is not installed. Run "pip install tomli"')
+
 if opts.yaml:
     try:
         import yaml
@@ -167,6 +181,16 @@ if opts.requirements_file:
     except FileNotFoundError:
         pass
 
+elif opts.pyproject_file:
+    pyproject_file = os.path.expanduser(opts.pyproject_file)
+    with open(pyproject_file, "rb") as f:
+        pyproject_data = toml_load(f)
+    dependencies =  pyproject_data.get("project", {}).get("dependencies", [])
+    packages = list(requirements.parse('\n'.join(dependencies)))
+    with tempfile.NamedTemporaryFile('w', delete=False, prefix='requirements.') as req_file:
+        req_file.write('\n'.join(dependencies))
+        requirements_file = req_file.name
+
 elif opts.packages:
     packages = list(requirements.parse('\n'.join(opts.packages)))
     with tempfile.NamedTemporaryFile('w', delete=False, prefix='requirements.') as req_file:

pip/readme.md

@@ -43,7 +43,8 @@ You can use that in your manifest like
 * `--python2`: Build with Python 2. Note that you will have to build [the Python 2 shared-module](https://github.com/flathub/shared-modules/tree/master/python2.7) as it is not in any runtime.
 * `--cleanup=(scripts|all)`: Add `cleanup` to the manifest. This is used when the packages installed are only used at build time.
 * `--build-only`: Alias to `--cleanup=all`.
-* `--requirements-file=`, `-r`: Reads the list of packages from `requirements.txt` file.
+* `--requirements-file=`, `-r`: Reads the list of packages from `requirements.txt` file. Mutually exclusive with `--pyproject-file`.
+* `--pyproject-file=`: Reads the list of packages from `pyproject.toml` file. Mutually exclusive with `--requirements-file` or `r`.
 * `--checker-data`: This adds `x-checker-data` to modules so you will be notified when new releases happen. See [flatpak-external-data-checker](https://github.com/flathub/flatpak-external-data-checker) for more details.
 * `--runtime=`: Runs `pip` inside of a specific Flatpak runtime instead of on your host. Highly recommended for reproducability and portability. Examples would be `org.freedesktop.Sdk//22.08` or `org.gnome.Sdk/aarch64/43`.
 * `--ignore-errors=`: Allow the generation of empty or otherwise broken files when downloading packages fails.