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* offload: Use (guix inferior) instead of (ssh dist node).Ludovic Courtès2018-12-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Using inferiors and thus 'guix repl' simplifies setup on build machines (no need to worry about GUILE_LOAD_PATH etc.) Furthermore, the 'guix repl -t machine' protocol running in a remote pipe addresses several issues with the current implementation of nodes and RREPLs in Guile-SSH: fewer round trips, doesn't leave a 'guile --listen' process behind it, stateless (since a new process is started each time), more efficient (the SSH channel can be reused), more reliable (no 'pgrep', 'pkill', and shellology; see <https://github.com/artyom-poptsov/guile-ssh/issues/11> as an example.) * guix/ssh.scm (inferior-remote-eval): New procedure. (send-files): Use it instead of 'make-node' and 'node-eval'. * guix/scripts/offload.scm (node-guile-version): New procedure. (node-free-disk-space, transfer-and-offload, node-load) (choose-build-machine, assert-node-has-guix): Use 'remote-inferior' instead of 'make-node' and 'inferior-eval' instead of 'node-eval'. (assert-node-can-import, assert-node-can-export): Likewise, and add 'session' parameter. (check-machine-availability): Likewise, and add calls to 'close-inferior' and 'disconnect!'. (check-machine-status): Likewise. * doc/guix.texi (Daemon Offload Setup): Remove bit related to 'guile' in $PATH and $GUILE_LOAD_PATH; mention 'guix' alone.
* ssh: Add 'remote-inferior'.Ludovic Courtès2018-12-24
| | | | | | | | | * guix/inferior.scm (<inferior>)[close]: New field. (port->inferior): New procedure. (open-inferior): Rewrite in terms of 'port->inferior'. (close-inferior): Honor INFERIOR's 'close' field. (inferior-eval-with-store): Add FIXME comment. * guix/ssh.scm (remote-inferior): New procedure.
* ssh: Make 'send-files' more robust.Ludovic Courtès2018-11-24
| | | | | | | Possibly fixes <https://bugs.gnu.org/33239>. * guix/ssh.scm (send-files): Call 'channel-get-exit-status' only when RESULT is true.
* ssh: Honor the SOCKET-NAME argument of connect-to-remote-daemon.Maxim Cournoyer2018-11-05
| | | | | * guix/ssh.scm (connect-to-remote-daemon): Pass the `socket-name' variable to the `open-connection' call so that it is honored.
* ssh: Display the size of the store items being sent.Ludovic Courtès2018-07-29
| | | | | * guix/ssh.scm (send-files): Compute the size of MISSING and display it.
* ssh: Work around 'select' bug in Guile.Ludovic Courtès2018-02-09
| | | | | | | Fixes <https://bugs.gnu.org/30365>. * guix/ssh.scm (remote-daemon-channel)[redirect]: Define 'select*' and use it.
* ssh: Switch back to 'get-bytevector-some'.Ludovic Courtès2018-01-12
| | | | | | | | This mostly reverts 17af5d51de7c40756a4a39d336f81681de2ba447. Suggested by Andy Wingo <wingo@igalia.com>. * guix/ssh.scm (remote-daemon-channel)[redirect]: Remove 'read!' FFI hack. Use buffered ports.
* offload: 'test' reports Guile and module errors more nicely.Ludovic Courtès2018-01-12
| | | | | | | | | | | Fixes <https://bugs.gnu.org/26008>. Reported by Myles English <mylesenglish@gmail.com>. * guix/ssh.scm (retrieve-files*): Move error reporting to... (report-guile-error, report-module-error): ... here. New procedures. * guix/scripts/offload.scm (assert-node-repl): Use 'report-guile-error'. (assert-node-has-guix): Explicitly check for 'use-modules' first. Use 'report-module-error'.
* ssh: 'retrieve-files' now only retrieves what's missing.Ludovic Courtès2018-01-12
| | | | | | * guix/ssh.scm (retrieve-files): Remove the subset of FILES that is valid in LOCAL. (store-export-channel): Add comment.
* offload: Fix regression in file retrieval.Ludovic Courtès2018-01-12
| | | | | | | | | | | | | | | | This fixes a regression in 'retrieve-files*' introduced in 896fec476f728183b331cbb6e2afb891207b4205, whereby (guix scripts offload) would not read the initial sexp now sent by the remote host via 'store-export-channel'. This would effectively prevent file retrieval entirely when offloading. * guix/ssh.scm (retrieve-files*): New procedure, like former 'retrieve-files' but with an extra #:import parameter. (retrieve-files): Rewrite in terms of 'retrieve-files*'. (file-retrieval-port): Make private. * guix/scripts/offload.scm (transfer-and-offload): Pass #:import to 'retrieve-files*'. (retrieve-files*): Remove.
* ssh: Pass an empty "exceptfds" set to 'select'.Ludovic Courtès2018-01-11
| | | | | | | | | | Previously the redirect code could end up exiting prematurely because of an uninteresting "exceptional condition" on the socket (info "(libc) Waiting for I/O"). * guix/ssh.scm (remote-daemon-channel): Pass the empty list as the third argument to 'select'. It was a mistake to pass a non-empty list there in the first place.
* ssh: Work around 'get-bytevector-some' bug.Ludovic Courtès2018-01-11
| | | | | | | | | This works around <https://bugs.gnu.org/30066> and noticeably improves performance when using GUIX_DAEMON_SOCKET=ssh://HOST (the redirect code was transferring data to guix-daemon one byte at a time!). * guix/ssh.scm (remote-daemon-channel)[redirect]: Define 'read!' and use it instead of 'get-bytevector-some'.
* ssh: Improve error reporting when retrieving files.Ludovic Courtès2018-01-07
| | | | | | | | | | | | 'guix copy --from' now reports messages much more useful than "failed to retrieve files". * guix/ssh.scm (store-export-channel)[export]: Wrap 'use-modules' in 'catch' and 'with-store' in 'guard'. Check for invalid items. Write a status sexp on stdout. (raise-error): New macro. (retrieve-files): Read the initial status sexp and report errors accordingly.
* ssh: Use (guix i18n).Ludovic Courtès2017-11-19
| | | | * guix/ssh.scm: Use (guix i18n) instead of (guix ui).
* ssh: Improve error reporting when 'send-files' fails.Ludovic Courtès2017-06-04
| | | | | | | | | | Fixes <http://bugs.gnu.org/26972>. * guix/ssh.scm (store-import-channel)[import]: Add 'consume-input' procedure. Wrap body in 'catch' and 'guard'. Use 'open-remote-pipe' with OPEN_BOTH instead of 'open-remote-output-pipe'. (send-files): After the 'channel-send-eof' call, do (read port). Interpret the result sexp and raise an error condition if needed.
* ui: Rename '_' to 'G_'.Ludovic Courtès2017-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
* ssh: Decompose 'connect-to-remote-daemon'.Ludovic Courtès2017-04-21
| | | | | * guix/ssh.scm (remote-daemon-channel): New procedure. (connect-to-remote-daemon): Implement in terms of it.
* ssh: Move 'open-ssh-session' to (guix ssh).Ludovic Courtès2017-04-21
| | | | | | * guix/scripts/copy.scm (%compression, open-ssh-session): Move to... * guix/ssh.scm: ... here. Use '&message' conditions instead of calling 'leave'.
* ssh: 'retrieve-files' detects remote export failures.Ludovic Courtès2016-12-31
| | | | | * guix/ssh.scm (retrieve-files): Call 'lookahead-u8' and raise a '&message' condition when it returns EOF.
* ssh: 'send-files' returns the list of items sent.Ludovic Courtès2016-12-31
| | | | * guix/ssh.scm (send-files): Return MISSING.
* ssh: Allow transfers of complete closures.Ludovic Courtès2016-12-31
| | | | | | * guix/ssh.scm (store-export-channel, send-files) (file-retrieval-port, retrieve-files): Add #:recursive? parameter and honor it.
* Add (guix ssh) module.Ludovic Courtès2016-12-31
* guix/scripts/offload.scm (connect-to-remote-daemon) (store-import-channel, store-export-channel, send-files) (retrieve-files): Move to (guix ssh). (nonce): Add optional 'name' parameter and use it. (retrieve-files*): New procedure. (transfer-and-offload): Use it instead of 'retrieve-files', and add first parameter to 'send-files'. (assert-node-can-import): Likewise. (assert-node-can-export): Use 'retrieve-files' instead of 'store-export-channel'. * guix/ssh.scm: New file. * configure.ac: Use 'GUIX_CHECK_GUILE_SSH' and define 'HAVE_GUILE_SSH' Automake conditional. * Makefile.am (MODULES) [HAVE_GUILE_SSH]: Add guix/ssh.scm.
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