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authorLudovic Courtès <ludo@gnu.org>2013-04-12 17:30:27 +0200
committerLudovic Courtès <ludo@gnu.org>2013-04-12 17:31:01 +0200
commitfe0cff14f6c5facee4192529f5c7b7a972f185ca (patch)
tree6e8c21cbcb5a4b0656d2184940457fe87dd92095 /doc
parentd7c5d27795500c1db3bca6c2ebf9066e32d36adb (diff)
downloadguix-fe0cff14f6c5facee4192529f5c7b7a972f185ca.tar.gz
substitute-binary: Implement `--substitute'.
This allows build outputs to be transparently downloaded from
http://hydra.gnu.org, for example.

* config-daemon.ac: Check for `gzip', `bzip2', and `xz'.
* guix/config.scm.in (%gzip, %bzip2, %xz): New variable.
* guix/scripts/substitute-binary.scm (fetch): Return SIZE as a second value.
  (<narinfo>): Change `url' to `uri'.
  (make-narinfo): Rename to...
  (narinfo-maker): ... this.  Handle relative URLs.
  (fetch-narinfo): Adjust accordingly.
  (filtered-port, decompressed-port): New procedures.
  (guix-substitute-binary): Implement the `--substitute' case.
* tests/store.scm ("substitute query"): Use (%store-prefix) instead
  of (getenv "NIX_STORE_DIR").
  ("substitute"): New test.
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