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63 Commits (7843f276d1c9c2b0c6b6a2c91ddd12500320945e)

Author SHA1 Message Date
Ludovic Courtès 88da0b6888 offload: Distinguish between 'decline' and 'postpone'. 
* guix/scripts/offload.scm (transfer-and-offload): New procedure, with
  core formerly in 'process-request'.
  (choose-build-machine): Remove 'requirements' parameter.
  (process-request): Reply 'decline' when none of MACHINES matches the
  requirements, and 'postpone' when MACHINES are busy.
 2014-03-09 14:06:35 +01:00
Ludovic Courtès 5cc569dc73 offload: Prevent locked files from being GC'd. 
* guix/scripts/offload.scm (%slots): New variable.
  (choose-build-machine): Add SLOT to '%slots'.
 2014-03-08 21:23:12 +01:00
Ludovic Courtès 7df3ade112 offload: Fix thinko. 
* guix/scripts/offload.scm (choose-build-machine)[machine+slots]: Use
  'filter-map', not 'filter'.
 2014-03-08 12:22:49 +01:00
Ludovic Courtès d652b85137 offload: Make 'parallel-builds' a hard limit. 
* guix/scripts/offload.scm (machine-choice-lock-file,
  machine-slot-file, acquire-build-slot, release-build-slot): New
  procedures.
  (choose-build-machine): Operate with (machine-choice-lock-file)
  taken.  Acquire a build slot for each of MACHINES.  Release those not
  used.
 2014-03-08 12:16:06 +01:00
Ludovic Courtès 4bf1eb4f88 offload: Further generalize lock files. 
* guix/scripts/offload.scm (lock-machine, unlock-machine): Remove.
  (lock-file, unlock-file): New procedures.
  (with-file-lock): New macro.
  (with-machine-lock): Rewrite in terms of 'with-file-lock'.
 2014-03-08 12:07:57 +01:00
Ludovic Courtès 178f5828eb offload: Generalize the machine lock mechanism. 
* guix/scripts/offload.scm (lock-machine): Add 'hint' parameter.
  (unlock-machine): Remove 'machine' parameter.
  (with-machine-lock): Add 'hint' parameter, and pass it down.
  (process-request): Adjust uses of 'with-machine-lock' to pass the
  'bandwidth hint.
 2014-03-08 11:29:52 +01:00
Ludovic Courtès f326fef8a8 offload: Serialize file transfers to build machines. 
* guix/scripts/offload.scm (machine-lock-file, lock-machine,
  unlock-machine): New procedures.
  (with-machine-lock): New macro.
  (process-request): Wrap 'send-files' and 'retrieve-files' calls in
  'with-machine-lock'.
 2014-03-06 21:42:24 +01:00
Ludovic Courtès 1f7fd80032 offload: Comment out attempt to set up an lsh gateway. 
* guix/scripts/offload.scm (open-ssh-gateway): Comment out.
  (process-request): Remove call to 'open-ssh-gateway' and to 'kill'.
 2014-03-01 12:24:39 +01:00
Ludovic Courtès aedbf9b873 offload: 'remote-pipe' uses the right SSH key. 
* guix/scripts/offload.scm (remote-pipe): Pass -i when invoking
  %LSHG-COMMAND.
 2014-03-01 12:15:47 +01:00
Ludovic Courtès 165f4b2add offload: Take the target machine load into account. 
* guix/scripts/offload.scm (machine-load, machine-less-loaded?,
  machine-less-loaded-or-faster?): New procedures.
  (choose-build-machine): Use 'machine-less-loaded-or-faster?' when
  sorting.  Return the head of MACHINES unless it's loaded is >= 2.
 2014-03-01 01:31:18 +01:00
Ludovic Courtès 92cb2e2888 offload: Have 'build-machines' honor its argument. 
* guix/scripts/offload.scm (build-machines): Honor FILE.
 2014-02-02 01:32:50 +01:00
Ludovic Courtès a76611c435 offload: Do not try to retrieve anything upon build failure. 
* guix/scripts/offload.scm (offload): Add 'log-port' keyword parameter.
  Handle log display here.  Return the result of (close-pipe pipe).
  (process-request): Adjust 'offload' call site accordingly.  Call
  'retrieve-files' only when 'offload' returns zero; exit when 'offload'
  returns non-zero.
 2014-01-27 21:32:59 +01:00
Ludovic Courtès 49e6291a7a Add 'guix offload' as a daemon build hook. 
* nix/nix-daemon/guix-daemon.cc (GUIX_OPT_NO_BUILD_HOOK): New macro.
  (options): Add '--no-build-hook'.
  (parse_opt): Handle it.
  (main)[HAVE_DAEMON_OFFLOAD_HOOK]: Set 'useBuildHook' by default.
  Set $NIX_BUILD_HOOK to our offload hook unless otherwise specified.
  [!HAVE_DAEMON_OFFLOAD_HOOK]: Clear 'useBuildHook'.
* pre-inst-env.in: Set and export NIX_BUILD_HOOK.
* nix/scripts/offload.in, guix/scripts/offload.scm: New files.
* guix/ui.scm (show-guix-help)[internal?]: Add "offload".
* config-daemon.ac: Call 'GUIX_CHECK_UNBUFFERED_CBIP'.
  Instantiate 'nix/scripts/offload'.  Set 'BUILD_DAEMON_OFFLOAD'
  conditional, and optionally define 'HAVE_DEAMON_OFFLOAD_HOOK' cpp
  macro.
* daemon.am (nodist_pkglibexec_SCRIPTS)[BUILD_DAEMON_OFFLOAD]: Add it.
* Makefile.am (MODULES)[BUILD_DAEMON_OFFLOAD]: Add
  'guix/scripts/offload.scm'.
  (EXTRA_DIST)[!BUILD_DAEMON_OFFLOAD]: Likewise.
* m4/guix.m4 (GUIX_CHECK_UNBUFFERED_CBIP): New macro.
* doc/guix.texi (Setting Up the Daemon): Move most of the body to...
  (Build Environment Setup): ... this.  New subsection.
  (Daemon Offload Setup): New subsection.
 2014-01-24 00:01:50 +01:00