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-rwxr-xr-xguix/scripts/substitute.scm20
-rw-r--r--guix/store.scm10
2 files changed, 25 insertions, 5 deletions
diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 82ce069598..db0416b0c0 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -31,7 +31,8 @@
#:use-module (guix pki)
#:use-module ((guix build utils) #:select (mkdir-p dump-port))
#:use-module ((guix build download)
- #:select (progress-proc uri-abbreviation
+ #:select (current-terminal-columns
+ progress-proc uri-abbreviation
open-connection-for-uri
close-connection
store-path-abbreviation byte-count->string))
@@ -973,6 +974,14 @@ found."
;; daemon.
'("http://hydra.gnu.org"))))
+(define (client-terminal-columns)
+ "Return the number of columns in the client's terminal, if it is known, or a
+default value."
+ (or (and=> (or (find-daemon-option "untrusted-terminal-columns")
+ (find-daemon-option "terminal-columns"))
+ string->number)
+ 80))
+
(define (guix-substitute . args)
"Implement the build daemon's substituter protocol."
(mkdir-p %narinfo-cache-directory)
@@ -1003,9 +1012,12 @@ found."
(loop (read-line)))))))
(("--substitute" store-path destination)
;; Download STORE-PATH and add store it as a Nar in file DESTINATION.
- (process-substitution store-path destination
- #:cache-urls %cache-urls
- #:acl (current-acl)))
+ ;; Specify the number of columns of the terminal so the progress
+ ;; report displays nicely.
+ (parameterize ((current-terminal-columns (client-terminal-columns)))
+ (process-substitution store-path destination
+ #:cache-urls %cache-urls
+ #:acl (current-acl))))
(("--version")
(show-version-and-exit "guix substitute"))
(("--help")
diff --git a/guix/store.scm b/guix/store.scm
index 906611658e..af311a0ebd 100644
--- a/guix/store.scm
+++ b/guix/store.scm
@@ -22,6 +22,7 @@
#:use-module (guix serialization)
#:use-module (guix monads)
#:autoload (guix base32) (bytevector->base32-string)
+ #:autoload (guix build syscalls) (terminal-columns)
#:use-module (rnrs bytevectors)
#:use-module (rnrs io ports)
#:use-module (srfi srfi-1)
@@ -530,7 +531,10 @@ encoding conversion errors."
;; the daemon's settings are used. Otherwise, it
;; overrides the daemons settings; see 'guix
;; substitute'.
- (substitute-urls #f))
+ (substitute-urls #f)
+
+ ;; Number of columns in the client's terminal.
+ (terminal-columns (terminal-columns)))
;; Must be called after `open-connection'.
(define socket
@@ -565,6 +569,10 @@ encoding conversion errors."
,@(if rounds
`(("build-repeat"
. ,(number->string (max 0 (1- rounds)))))
+ '())
+ ,@(if terminal-columns
+ `(("terminal-columns"
+ . ,(number->string terminal-columns)))
'()))))
(send (string-pairs pairs))))
(let loop ((done? (process-stderr server)))