Ludovic Courtès b94b698d4e serialization: Add 'write-file-tree'. ...

* guix/serialization.scm (write-contents-from-port): New procedure.
(write-contents): Write in terms of 'write-contents-from-port'.
(filter/sort-directory-entries, write-file-tree): New procedures.
(write-file): Rewrite in terms of 'write-file-tree'.
* tests/nar.scm ("write-file-tree + restore-file"): New test.

2018-07-19 11:48:04 +02:00

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