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2020-12-20scripts: discover: Remove previous cache file.Mathieu Othacehe
Partially fixes <https://issues.guix.gnu.org/45302>. * guix/scripts/discover.scm (guix-discover): Remove previous cache files.
2020-12-13scripts: discover: Remove file locks.Mathieu Othacehe
* guix/scripts/discover.scm (call-with-read-file-lock, with-read-file-lock): Remove them. (write-publish-file): Use "with-atomic-file-output" instead of "with-file-lock". (read-substitute-urls): Remove file lock.
2020-12-05scripts: discover: Check for cache file existence.Mathieu Othacehe
Fixes: https://issues.guix.gnu.org/45045. * guix/scripts/discover.scm (read-substitute-urls): Check for file existence.
2020-11-29Use substitute servers on the local network.Mathieu Othacehe
* guix/scripts/discover.scm: New file. * Makefile.am (MODULES): Add it. * nix/nix-daemon/guix-daemon.cc (options): Add "discover" option, (parse-opt): parse it, (main): start "guix discover" process when the option is set. * guix/scripts/substitute.scm (%local-substitute-urls): New variable, (substitute-urls): add it. * gnu/services/base.scm (<guix-configuration>): Add "discover?" field, (guix-shepherd-service): honor it. * doc/guix.texi (Invoking guix-daemon): Document "discover" option, (Base Services): ditto.