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| author | Ludovic Courtès <ludo@gnu.org> | 2019-12-06 00:40:41 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2019-12-12 17:56:58 +0100 |
| commit | 22f06a212879369bd1d7f3aa5b19f8f89a8c6693 (patch) | |
| tree | b843f8fc7130138746872edc2e0f5d5cd838c3d6 | |
| parent | 1d9a4456a83a197a47bf2bdebc6b60ae78e00cfc (diff) | |
| download | guix-22f06a212879369bd1d7f3aa5b19f8f89a8c6693.tar.gz guix-22f06a212879369bd1d7f3aa5b19f8f89a8c6693.zip | |
progress: Add 'progress-report-port'.
* guix/scripts/substitute.scm (progress-report-port): Move to...
* guix/progress.scm (progress-report-port): ... here. New procedure.
| -rw-r--r-- | guix/progress.scm | 31 | ||||
| -rwxr-xr-x | guix/scripts/substitute.scm | 29 |
2 files changed, 31 insertions, 29 deletions
diff --git a/guix/progress.scm b/guix/progress.scm index 349637dbcf..c7567a35fd 100644 --- a/guix/progress.scm +++ b/guix/progress.scm @@ -40,6 +40,7 @@ progress-reporter/file progress-reporter/bar progress-reporter/trace + progress-report-port display-download-progress erase-current-line @@ -342,3 +343,33 @@ should be a <progress-reporter> object." (put-bytevector out buffer 0 bytes) (report total) (loop total (get-bytevector-n! in buffer 0 buffer-size)))))))) + +(define (progress-report-port reporter port) + "Return a port that continuously reports the bytes read from PORT using +REPORTER, which should be a <progress-reporter> object." + (match reporter + (($ <progress-reporter> start report stop) + (let* ((total 0) + (read! (lambda (bv start count) + (let ((n (match (get-bytevector-n! port bv start count) + ((? eof-object?) 0) + (x x)))) + (set! total (+ total n)) + (report total) + n)))) + (start) + (make-custom-binary-input-port "progress-port-proc" + read! #f #f + (lambda () + ;; XXX: Kludge! When used through + ;; 'decompressed-port', this port ends + ;; up being closed twice: once in a + ;; child process early on, and at the + ;; end in the parent process. Ignore + ;; the early close so we don't output + ;; a spurious "download-succeeded" + ;; trace. + (unless (zero? total) + (stop)) + (close-port port))))))) + diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm index 4802fbd1fe..7eca2c6874 100755 --- a/guix/scripts/substitute.scm +++ b/guix/scripts/substitute.scm @@ -823,35 +823,6 @@ was found." (= (string-length file) 32))))) (narinfo-cache-directories directory))) -(define (progress-report-port reporter port) - "Return a port that continuously reports the bytes read from PORT using -REPORTER, which should be a <progress-reporter> object." - (match reporter - (($ <progress-reporter> start report stop) - (let* ((total 0) - (read! (lambda (bv start count) - (let ((n (match (get-bytevector-n! port bv start count) - ((? eof-object?) 0) - (x x)))) - (set! total (+ total n)) - (report total) - n)))) - (start) - (make-custom-binary-input-port "progress-port-proc" - read! #f #f - (lambda () - ;; XXX: Kludge! When used through - ;; 'decompressed-port', this port ends - ;; up being closed twice: once in a - ;; child process early on, and at the - ;; end in the parent process. Ignore - ;; the early close so we don't output - ;; a spurious "download-succeeded" - ;; trace. - (unless (zero? total) - (stop)) - (close-port port))))))) - (define-syntax with-networking (syntax-rules () "Catch DNS lookup errors and TLS errors and gracefully exit." |