/usr/share/racket/collects/pkg/util.rkt is in racket-common 6.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | #lang racket/base
(require racket/path
racket/list
racket/function
racket/file
racket/port
racket/match
racket/format
racket/string
racket/set
net/url
json)
(define-logger pkg)
(define (make-parent-directory* p)
(define parent (path-only p))
(make-directory* parent))
(define (table-display l)
(define how-many-cols (length (first l)))
(define max-widths
(for/list ([col (in-range how-many-cols)])
(apply max (map (compose string-length (curryr list-ref col)) l))))
(for ([row (in-list l)])
(for ([col (in-list row)]
[i (in-naturals 1)]
[width (in-list max-widths)])
(printf "~a~a"
col
(if (= i how-many-cols)
""
(make-string (+ (- width (string-length col)) 4) #\space))))
(printf "\n")))
(define (call/input-url+200 u fun
#:headers [headers '()]
#:failure [fail-k (lambda (s) #f)])
#;(printf "\t\tReading ~a\n" (url->string u))
(define-values (ip hs) (get-pure-port/headers u headers
#:redirections 25
#:status? #t))
(if (string=? "200" (substring hs 9 12))
(begin0
(fun ip)
(close-input-port ip))
(fail-k hs)))
(define (url-path/no-slash url)
(define p (url-path url))
(define rp (reverse p))
(reverse
(match rp
[(list* (path/param "" _) rest)
rest]
[_ rp])))
(define github-client_id (make-parameter #f))
(define github-client_secret (make-parameter #f))
(define (split-github-url pkg-url)
(if (equal? (url-scheme pkg-url) "github")
;; github://
(map path/param-path (url-path/no-slash pkg-url))
;; git://
(let* ([paths (map path/param-path (url-path/no-slash pkg-url))])
(list* (car paths)
(regexp-replace* #rx"[.]git$" (cadr paths) "")
(or (url-fragment pkg-url) "master")
(let ([a (assoc 'path (url-query pkg-url))])
(or (and a (cdr a) (string-split (cdr a) "/"))
null))))))
(define (package-url->checksum pkg-url-str [query empty]
#:download-printf [download-printf void]
#:pkg-name [pkg-name "package"])
(define pkg-url
(string->url pkg-url-str))
(match (url-scheme pkg-url)
[(or "github" "git")
(match-define (list* user repo branch path)
(split-github-url pkg-url))
(or
(for/or ([kind '("branches" "tags")])
(define api-u
(url "https" #f "api.github.com" #f #t
(map (λ (x) (path/param x empty))
(list "repos" user repo kind))
(append query
(if (and (github-client_id)
(github-client_secret))
(list (cons 'client_id (github-client_id))
(cons 'client_secret (github-client_secret)))
empty))
#f))
(download-printf "Querying GitHub ~a\n" kind)
(log-pkg-debug "Querying GitHub at ~a" (url->string api-u))
(define api-bs
(call/input-url+200
api-u port->bytes
#:headers (list (format "User-Agent: raco-pkg/~a" (version)))))
(unless api-bs
(error 'package-url->checksum
"could not connect to GitHub\n URL: ~a"
(url->string
(struct-copy url api-u
[query query]))))
(define branches
(read-json (open-input-bytes api-bs)))
(unless (and (list? branches)
(andmap hash? branches)
(andmap (λ (b) (hash-has-key? b 'name)) branches)
(andmap (λ (b) (hash-has-key? b 'commit)) branches))
(error 'package-url->checksum
"Invalid response from Github: ~e"
api-bs))
(for/or ([b (in-list branches)])
(and (equal? (hash-ref b 'name) branch)
(hash-ref (hash-ref b 'commit) 'sha))))
;; no matching branch/tag found, so if `branch' matches the
;; syntax of a commit id, then assume that it refers to a commit
(and (regexp-match? #rx"[a-f0-9]+" branch)
branch))]
[_
(define u (string-append pkg-url-str ".CHECKSUM"))
(download-printf "Downloading checksum for ~a\n" pkg-name)
(log-pkg-debug "Downloading checksum as ~a" u)
(call/input-url+200 (string->url u)
port->string)]))
;; uses a custodian to avoid leaks:
(define (call-with-url url handler)
(define c (make-custodian))
(dynamic-wind
void
(lambda ()
(define-values (p hs)
(parameterize ([current-custodian c])
(get-pure-port/headers url #:redirections 25 #:status? #t)))
(begin0
(and (string=? "200" (substring hs 9 12))
(handler p))
(close-input-port p)))
(lambda ()
(custodian-shutdown-all c))))
(define (read-from-server who url pred
[failure
(lambda (s)
(error who
(~a "bad response from server\n"
" url: ~a\n"
" response: ~v")
(url->string url)
s))])
(define bytes (call-with-url url port->bytes))
((if bytes
(with-handlers ([exn:fail:read? (lambda (exn)
(lambda () (failure bytes)))])
(define v (read (open-input-bytes bytes)))
(lambda ()
(if (pred v)
v
(failure bytes))))
(lambda () (failure #f)))))
(define (lift-directory-content pkg-dir path)
(define orig-sub (let ([s (car path)])
(if (string? s)
(string->path s)
s)))
;; Delete everything except `orig-sub`:
(for ([f (in-list (directory-list pkg-dir))])
(unless (equal? f orig-sub)
(delete-directory/files (build-path pkg-dir f))))
;; Get list of files and directories to move:
(define sub-l (directory-list (apply build-path pkg-dir path)))
;; Make sure `sub` doesn't match a name we want to move here:
(define sub
(let loop ([sub orig-sub] [i 0])
(cond
[(member sub sub-l)
;; pick a new name:
(loop (string->path (format "sub~a" i)) (add1 i))]
[(not (equal? sub orig-sub))
(rename-file-or-directory (build-path pkg-dir orig-sub)
(build-path pkg-dir sub))
sub]
[else sub])))
;; Move content of `sub` out:
(define sub-path (apply build-path (cons sub (cdr path))))
(for ([f (in-list sub-l)])
(rename-file-or-directory (build-path pkg-dir sub-path f)
(build-path pkg-dir f)))
;; Remove directory that we moved files out of:
(delete-directory/files (build-path pkg-dir sub)))
(define (remove-extra-directory-layer pkg-dir)
;; Treat a single directory produced in `pkg-dir`
;; as having the content of the package, instead of
;; being included itself in the package content.
(define l (directory-list pkg-dir))
(when (= 1 (length l))
(define orig-sub (car l))
(when (directory-exists? (build-path pkg-dir orig-sub))
(lift-directory-content pkg-dir (list orig-sub)))))
(provide (all-defined-out))
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