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https://github.com/dgtlmoon/changedetection.io.git
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dgtlmoon
26 lines
1.1 KiB
Bash
Executable File
26 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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set -e
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# Install additional Python packages from the EXTRA_PACKAGES env var.
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#
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# Why no marker / skip-cache:
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# A previous version of this script wrote a marker file to
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# /datastore/.extra_packages_installed and skipped pip when it was present.
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# That marker lived on the persistent /datastore volume, but the pip-installed
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# packages live in the container's writable layer — so after a `docker compose
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# down && up` (or any container recreation) the packages were gone while the
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# marker remained, and the script wrongly believed everything was installed.
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# See: https://github.com/dgtlmoon/changedetection.io/issues/4140
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#
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# Running pip on every start is correct by construction: when the requirements
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# are already satisfied, pip is a fast no-op ("Requirement already satisfied"),
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# adding ~1s per package. That's a small price for not lying about the install
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# state — and pip's own resolver is the authoritative check, not a flat file.
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if [ -n "$EXTRA_PACKAGES" ]; then
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echo "Ensuring extra packages installed: $EXTRA_PACKAGES"
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pip3 install --no-cache-dir $EXTRA_PACKAGES
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fi
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# Execute the main command
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exec "$@"
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