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git-checkout: add #:initial-error argument

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This commit is contained in:
Matthew Flatt 2015-05-16 16:21:52 -06:00
parent c4401313d4
commit 9272781d6d
1 changed files with 7 additions and 4 deletions
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11
racket/collects/net/git-checkout.rkt
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@ -30,6 +30,7 @@
#:status-printf [status-printf (lambda args
(apply printf args)
(flush-output))]
#:initial-error [initial-error #f]
#:tmp-dir [given-tmp-dir #f]
#:clean-tmp-dir? [clean-tmp-dir? (not given-tmp-dir)]
#:verify-server? [verify? #t]
@ -69,7 +70,7 @@
;; Parse server's initial reply
(define server-capabilities (parse-server-capabilities (car pkts)))
(define refs ; (list (list <name> <ID>) ...)
(parse-initial-refs pkts))
(parse-initial-refs pkts initial-error))
;; Find the commits needed for `ref`:
(define-values (ref-commit ; #f or an ID string
@ -296,13 +297,15 @@
;; parse-initial-refs : (listof bytes) -> (listof (list bytes string))
;; In each element of the returned list, first item is
;; the branch or tag name, second is the ID
(define (parse-initial-refs pkts)
(define (parse-initial-refs pkts initial-error)
(filter
values
(for/list ([pkt (in-list pkts)])
(define m (regexp-match #px#"^([0-9a-fA-F]{40})[ \t]([^\0\n]+)[\0\n]" pkt))
(unless m (error 'git-checkout "could not parse ref pkt\n pkt: ~s"
pkt))
(unless m
(when initial-error (initial-error))
(error 'git-checkout "could not parse ref pkt\n pkt: ~s"
pkt))
(define name (caddr m))
(define id (bytes->string/utf-8 (cadr m)))
(cond