/usr/share/racket/collects/setup/pack.rkt is in racket-common 6.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(module pack racket/base
(require file/gzip
net/base64
racket/system
racket/port
racket/file
setup/getinfo)
(provide pack
pack-plt
mztar
std-filter
pack-collections
pack-collections-plt)
(define (x-arg-needs-true-arg who arg1-name v arg2-name)
(error who (string-append "true value for `~a' argument: ~e "
"requires a true value for `~a' argument")
arg1-name v arg2-name))
(define (pack dest name paths collections
[file-filter std-filter]
[encode? #t]
[file-mode 'file]
[unpack-unit #f]
[plt-relative? #t]
[requires null]
[conflicts null]
[at-plt-home? #f])
(pack-plt dest name paths
#:collections collections
#:file-filter file-filter
#:encode? encode?
#:file-mode file-mode
#:unpack-unit unpack-unit
#:plt-relative? plt-relative?
#:requires null
#:conflicts null
#:at-plt-home? at-plt-home?))
(define (pack-plt dest name paths
#:as-paths [as-paths paths]
#:collections [collections null]
#:file-filter [file-filter std-filter]
#:encode? [encode? #t]
#:file-mode [file-mode 'file]
#:unpack-unit [unpack-unit #f]
#:plt-relative? [plt-relative? #t]
#:requires [requires null]
#:conflicts [conflicts null]
#:at-plt-home? [at-plt-home? #f]
#:test-plt-dirs [test-plt-dirs #f])
(when (and at-plt-home? (not plt-relative?))
(x-arg-needs-true-arg 'pack-plt 'at-plt-home? at-plt-home? 'plt-relative?))
(when (and test-plt-dirs (not at-plt-home?))
(x-arg-needs-true-arg 'pack-plt 'test-plt-dirs test-plt-dirs 'at-plt-home?))
(let*-values ([(file) (open-output-file dest #:exists 'truncate/replace)]
[(fileout thd)
(if encode?
(let-values ([(b64-out b64-in) (make-pipe 4096)]
[(gz-out gz-in) (make-pipe 4096)])
(thread
(lambda ()
(let ([normal (lambda ()
(gzip-through-ports gz-out b64-in #f 0)
(close-output-port b64-in))]
[gzip (find-executable-path "gzip" #f)])
(if gzip
(let ([p (process* gzip "-c")])
(if (eq? 'running ((list-ref p 4) 'status))
(begin
;; Use gzip process.
;; Errors to error port:
(thread
(lambda ()
(dynamic-wind
void
(lambda ()
(copy-port (cadddr p) (current-error-port)))
(lambda ()
(close-input-port (cadddr p))))))
;; Copy input to gzip:
(thread
(lambda ()
(dynamic-wind
void
(lambda ()
(copy-port gz-out (cadr p)))
(lambda ()
(close-input-port gz-out)
(close-output-port (cadr p))))))
;; Copy input to b64:
(dynamic-wind
void
(lambda ()
(copy-port (car p) b64-in))
(lambda ()
(close-input-port (car p))
(close-output-port b64-in))))
(normal)))
(normal)))))
(values gz-in
(thread
(lambda ()
(base64-encode-stream b64-out file)
(close-output-port file)))))
(values file (thread void)))])
(fprintf fileout "PLT\n")
(write `(lambda (request failure)
(case request
[(name) ,name]
[(unpacker) 'mzscheme]
[(requires) ',requires]
[(conflicts) ',conflicts]
[(plt-relative?) ,plt-relative?]
[(plt-home-relative?) ,(and plt-relative? at-plt-home?)]
[(test-plt-dirs)
,(and plt-relative? at-plt-home? `',test-plt-dirs)]
[else (failure)]))
fileout)
(newline fileout)
(write (or unpack-unit
`(unit (import main-collects-parent-dir mzuntar) (export)
(mzuntar void)
(quote ,collections)))
fileout)
(newline fileout)
(for-each (lambda (path as-path)
(mztar (simplify-path path #f) #:as-path (simplify-path as-path #f)
fileout file-filter file-mode))
paths as-paths)
(close-output-port fileout)
(thread-wait thd)))
(define (element->string x)
(if (path? x) (path->string x) x))
(define (mztar path #:as-path [as-path path] output file-filter file-mode)
(define (path->list p)
(if (eq? p 'same)
null
(let-values ([(base name dir?) (split-path p)])
(if (path? base)
(append (path->list base) (list name))
(list name)))))
(define-values (init-dir init-as-dir init-files init-as-files)
(if (file-exists? path)
(let*-values ([(base name dir?) (split-path path)]
[(as-base as-name as-dir?) (if as-path
(split-path as-path)
(values base name dir?))])
(values (if (eq? base 'relative) 'same base)
(if (eq? as-base 'relative) 'same as-base)
(list name)
(list as-name)))
(let* ([init-dir (if (string? path) (string->path path) path)]
[init-as-dir (if (string? as-path) (string->path as-path) as-path)])
(values init-dir
init-as-dir
#f
#f))))
(let loop ([dir init-dir] [dpath (path->list init-dir)]
[as-dir init-as-dir] [as-dpath (path->list init-as-dir)]
[files init-files]
[as-files init-as-files])
(printf "MzTarring ~a~a...\n"
(path->string
(if files
(build-path dir (car files))
dir))
(if (not (equal? path as-path))
(format " as ~a"
(if as-files
(build-path as-dir (car as-files))
as-dir))
""))
(fprintf output "~s\n~s\n" 'dir (map element->string as-dpath))
(let* ([files (or files (sort (map element->string (directory-list dir)) string<?))]
[as-files (or as-files files)])
(for ([f (in-list files)]
[as-f (in-list as-files)])
(let* ([p (build-path dir f)]
[filter-val (file-filter p)])
(when filter-val
(if (directory-exists? p)
(loop p
(append dpath (list f))
(build-path as-dir f)
(append as-dpath (list f))
#f
#f)
(let ([len (file-size p)])
;; (printf "MzTarring ~a\n" p)
(fprintf output "~s\n~s\n~s\n*"
(case filter-val
[(file) 'file]
[(file-replace) 'file-replace]
[else file-mode])
(map element->string (append as-dpath (list as-f)))
len)
(call-with-input-file*
p
(lambda (p) (copy-port p output)))))))))))
(define (std-filter path)
(let-values ([(base name dir?) (split-path path)])
(let ([name (path->bytes name)])
(not (or (regexp-match? #rx#"^(?:[.](?:git.*|svn|cvsignore)|CVS|compiled|doc)$"
name)
(regexp-match? #rx#"~$|^#.*#$|^[.]#" name)
(regexp-match? #rx#"[.]plt$" name))))))
(define (pack-collections output name collections replace? extra-setup-collections
[file-filter std-filter] [at-plt-home? #f])
(pack-collections-plt output name collections
#:replace? replace?
#:extra-setup-collections extra-setup-collections
#:file-filter file-filter
#:at-plt-home? at-plt-home?))
(define (pack-collections-plt output name collections
#:replace? [replace? #f]
#:extra-setup-collections [extra-setup-collections null]
#:file-filter [file-filter std-filter]
#:at-plt-home? [at-plt-home? #f]
#:test-plt-collects? [test-plt-collects? #t])
(let-values
([(source-files as-source-files requires conflicts name)
(let ([dirs (map (lambda (cp) (apply collection-path cp)) collections)])
;; Figure out the base path:
(let* ([base-path #f]
[base-path-setter #f]
[paths dirs]
[rel-paths
(map (lambda (coll)
(build-path "collects" (apply build-path coll)))
collections)]
[infos (map (lambda (cp) (get-info cp)) collections)]
[coll-list?
(lambda (cl)
(and (list? cl)
(andmap (lambda (c)
(and (list? c)
(andmap string? c)
(andmap relative-path? c)))
cl)))]
[get-dep-coll
(lambda (which)
(apply append
(map (lambda (i src-cp)
(let ([rl (if i
(i which (lambda () null))
null)])
(unless (coll-list? rl)
(error 'mzc "bad ~a specification in info.rkt for collection ~s"
which src-cp))
rl))
infos collections)))])
(values paths
rel-paths
(get-dep-coll 'requires)
(append (if replace? null collections)
(get-dep-coll 'conflicts))
(or name
((or (car infos) (lambda (n f) (caar collections)))
'name
(lambda () (caar collections)))))))])
(let ([output (path->complete-path output)])
(pack-plt
output name
source-files
#:as-paths as-source-files
#:collections (append extra-setup-collections
(filter get-info collections))
#:file-filter file-filter
#:file-mode (if replace? 'file-replace 'file)
#:plt-relative? #t
#:requires
;; For each require, get current version
(map (lambda (r)
(let ([i (get-info r)])
(let ([v (and i (i 'version (lambda () #f)))])
(if v
(begin
(unless (and (list? v)
(andmap number? v)
(andmap exact? v)
(andmap integer? v))
(error
'mzc
"bad version specification in info.rkt for collection ~s"
r))
(list r v))
(list r null)))))
requires
;; Packer used to automatically include "mzscheme"
;; dependency, but we've conlcuded that dependencies
;; aren't typically useful.
#;
(cons '("mzscheme") requires))
#:conflicts conflicts
#:at-plt-home? at-plt-home?
#:test-plt-dirs (and at-plt-home? test-plt-collects?
'("collects")))))))
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