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publish: Factorize 'content-length' addition.

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* guix/scripts/publish.scm (with-content-length): New procedure.
(http-write) <application/octet-stream>: Use it.
This commit is contained in:
Ludovic Courtès 2016-12-04 00:38:30 +01:00
parent ba9f0db08c
commit 42d07286f4
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1 changed files with 10 additions and 7 deletions
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17
guix/scripts/publish.scm
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@ -365,6 +365,14 @@ (define (sans-content-length response)
(response-headers response)
eq?)))
(define (with-content-length response length)
"Return RESPONSE with a 'content-length' header set to LENGTH."
(set-field response (response-headers)
(alist-cons 'content-length length
(alist-delete 'content-length
(response-headers response)
eq?))))
(define-syntax-rule (swallow-EPIPE exp ...)
"Swallow EPIPE errors raised by EXP..."
(catch 'system-error
@ -432,13 +440,8 @@ (define (http-write server client response body)
(call-with-input-file (utf8->string body)
(lambda (input)
(let* ((size (stat:size (stat input)))
(headers (alist-cons 'content-length size
(alist-delete 'content-length
(response-headers response)
eq?)))
(response (write-response (set-field response
(response-headers)
headers)
(response (write-response (with-content-length response
size)
client))
(output (response-port response)))
(dump-port input output)