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;;
;; pseudo-meta-egg-info - a Spiffy module for dynamically serving up
;; autogenerated release-info and file-lists for eggs in Subversion repos.
;;
;; This code was written by Peter Bex and is hereby placed in the Public Domain
;;
(module pseudo-meta-egg-info
(egg-repo release-info files-list)
(import chicken scheme)
(use extras data-structures spiffy intarweb uri-common svn-client)
(define egg-repo
(make-parameter "http://anonymous:@code.call-cc.org/svn/chicken-eggs/release/4/"))
(define (release-info continue)
(or (and-let* ((params (uri-query (request-uri (current-request))))
(port (response-port (current-response)))
(egg-name (alist-ref 'egg params))
((not (string=? egg-name "")))
(tag-dir (update-uri (uri-reference "")
path: (list egg-name "tags")))
(repo-uri (uri-reference (egg-repo)))
(tags-uri (update-uri (uri-relative-to tag-dir repo-uri)
username: #f password: #f)))
(or (and-let* ((releases (svn-client-list (uri->string tags-uri (constantly ""))
svn-opt-revision-head 2
(uri-username repo-uri)
(uri-password repo-uri)))
(files-list-uri (conc (uri->string
(uri-relative-to
(uri-reference "files-list")
(request-uri (current-request))))
;; template, so don't make this a query
"?egg={egg-name};release={egg-release}")))
(with-headers '((content-type "text/plain"))
(lambda ()
(write-logged-response)
(write `(uri files-list ,files-list-uri) port)
(newline port)
(for-each (lambda (r)
(when (and (eq? (svn-file-kind r) 'directory)
(not (string=? (svn-file-path r) "")))
(write `(release ,(svn-file-path r)) port)
(newline port)))
releases)
(close-output-port port))))
(send-status 404 (sprintf "Egg \"~A\" doesn't exist or has no tags dir" egg-name))))
(send-status 400 "No egg name given")))
(define (files-list continue)
(or (and-let* ((params (uri-query (request-uri (current-request))))
(port (response-port (current-response)))
(egg-name (alist-ref 'egg params))
((not (string=? egg-name "")))
(egg-release (alist-ref 'release params))
((not (string=? egg-release "")))
(files-dir (update-uri (uri-reference "")
path: (list egg-name "tags" egg-release)))
(repo-uri (uri-reference (egg-repo)))
(files-uri (update-uri (uri-relative-to files-dir repo-uri))))
(or (and-let* ((files (svn-client-list (uri->string files-uri (constantly ""))
svn-opt-revision-head #t
(uri-username repo-uri)
(uri-password repo-uri))))
(with-headers '((content-type "text/plain"))
(lambda ()
(write-logged-response)
(display (uri->string files-uri
(lambda (u p) (conc u ":" p))) port)
(newline port)
(for-each (lambda (f)
(when (eq? (svn-file-kind f) 'file)
(display (svn-file-path f) port)
(newline port)))
files)
(close-output-port port))))
(send-status 404
(sprintf "Release \"~A\" for egg \"~A\" doesn't exist"
egg-release egg-name))))
(send-status 400 "No egg name or release given")))
)
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