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Hatch plugin to build zip archives which unpack to a single specifically-named directory

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hatch-zipped-directory

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This is a Hatch plugin that provides a custom builder to support building zip archives for quasi-manual installation into various foreign package installation systems. (Specifically, I use this for packaging Inkscape extensions and symbols libraries, but it may be useful in other contexts, such as deploying to cloud compute platforms.)

The builder creates a zip archive. All the contents of the zip archive will be included under a single specific top-level directory. The default name of the top-level directory is a file-name-safe version of the project name, however the name of the directory may be configured by setting the install-name key in the target-specific configuration section. This behavior may be disabled by setting install-name = ''.

In addition to whatever files are selected for inclusion in the archive via Hatch’s regular build configuration settings, any configured project README and license files will be included in the top level of the install directory within the zip archive.

As well, a METADATA.json file containing the project metadata in JSON format (as described in PEP 566) will be included in the top level of the install directory within the zip archive.

Example

Assume a project source directory looking something like:

.
├── pyproject.toml
├── LICENSE.txt
├── README.md
├── src
│   ├── subdir
│   │   ├── data.txt
│   │   └── more-code.py
│   └── my-code.py
└── tests
    └── test_foo.py

Where pyproject.toml looks like:

[build-system]
requires = [
    "hatchling",
    "hatch-zipped-directory",
]
build-backend = "hatchling.build"

[project]
name = "test-project"
version = "0.42"

[tool.hatch.build.targets.zipped-directory]
install-name = "org.example.test"
sources = [
    "/src",
]

Then, running

hatch build --target zipped-directory

will build a zip archive named dist/test_project-0.42.zip with the following structure:

.
└── org.example.test
    ├── LICENSE.txt
    ├── METADATA.json
    ├── README.md
    ├── my-code.py
    └── subdir
        ├── data.txt
        └── more-code.py

Reproducible Builds

By default, this plugin attempts to build reproducible archives by setting the timestamps of the zip entries to a fixed value. When building in reproducible mode, the UNIX file modes of the archive entries is also normalized (to either 0644 or 0755 depending on whether the file is executable.)

The timestamp used for reproducible builds may be configured by setting the SOURCE_DATE_EPOCH environment variable.

Reproducible builds may be disabled by setting reproducible = false in an appropriate section of pyproject.toml or hatch.toml. See Hatch’s documentation on Build Configuration for details.

Author

Jeff Dairiki [email protected]

License

hatch-zipped-directory is distributed under the terms of the MIT license.

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Hatch plugin to build zip archives which unpack to a single specifically-named directory

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