Language.Bash.Script

Utilities for turning statements into full scripts.

Documentation

script :: Annotation t => Statement t -> Builder

Produce a script beginning with #!/bin/bash and a safe set statement.

script_sha1 :: forall t t'. (Annotation t, Annotation t') => ByteString -> Statement t -> Statement t' -> Builder

Produce a script beginning with #!/bin/bash and some (optional) documentation. Cause the script to be scanned for SHA-1 hash of the setup (first statement argument) and main (second statement argument) before running the safe set statement and running the second argument.

tokenCheck :: ByteString -> Statement t -> Statement (Statements t t')

Scan $0 for the token before running, producing a statement annotated with the initial statement. This is a bit clumsy but is used internally.

mtokenCheck :: Monoid t => ByteString -> (Statement t -> t) -> Statement t -> Statement t

Scan $0 for the token before running, correctly producing monoidal annotations. The function argument provides an annotation for the fgrep check generated to search for the token. (const mempty would be appropriate in most cases.)

tokenFGREPq :: ByteString -> Statement t

sha1Check :: (Annotation t, Annotation t') => Statement t -> Statement (Statements t t')

Scan $0 the SHA1 of the statement before running.

sha1 :: ByteString -> ByteString

dance :: Statement t -> Annotated (Statements t t')

The noop dance -- annotate a NoOp with a statement, essentially as a type coercion.

noop :: Statement any