17 lines
480 B
Markdown
17 lines
480 B
Markdown
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# sha256
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## Calculating the SHA256
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The `sha256` value is usually calculated by the command:
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```bash
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$ shasum -a 256 <file>
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```
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## Special Value `:no_check`
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The special value `sha256 :no_check` is used to turn off SHA checking whenever checksumming is impractical due to the upstream configuration.
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`version :latest` requires `sha256 :no_check`, and this pairing is common. However, `sha256 :no_check` does not require `version :latest`.
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We use a checksum whenever possible.
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