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tools.sls
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tools.sls
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(library (spon tools)
(export download verify decompress initialize setup install
system-name verbose? quiet? download-error? download-error-uri
implementation-name command
file-copy make-directory make-symbolic-link
current-directory)
(import (rnrs)
(srfi :39)
(srfi :48)
(spon config)
(spon compat))
(define-condition-type &spon &error
make-spon-error spon-error?)
(define-condition-type &download &spon
make-download-error download-error?
(uri download-error-uri))
(define-record-type (version make-version version?)
(fields
(immutable v1 version-major)
(immutable v2 version-minor)
(immutable v3 version-patch)))
(define-record-type (pkg-stat make-pkg-stat pkg-stat?)
(fields
(immutable status pkg-stat-status)
(immutable version pkg-stat-version)))
(define-record-type (pkg-info make-pkg-info pkg-info?)
(fields
(immutable name pkg-info-name)
(immutable version pkg-info-version)
(immutable depends pkg-info-depends)
(immutable description pkg-info-description)
(mutable status pkg-info-status pkg-info-status-set!)))
(define (file-copy src dst mode)
(command "install" "-m" (number->string mode 8) src dst))
(define (make-directory dir mode)
(command "install" "-m" (number->string mode 8) "-d" dir))
(define (make-symbolic-link target link)
(command "ln" "-sf" target link))
(define-syntax do-procs
(syntax-rules ()
((_ (pre cmd ok ng) ...)
(and (begin
(unless (quiet?)
(format #t "----> ~A~%" pre))
(let ((res cmd))
(unless (quiet?)
(if res
(when ok
(format #t "----> ~A~%" ok))
(format #t "----> ERROR: ~A~%" ng)))
res))
...))))
(define (read-package-list)
(define (get-version alis)
(cond ((assq 'version alis)
=> (lambda (xs)
(and (= (length (cdr xs)) 3)
(for-all number? (cdr xs))
(apply make-version (cdr xs)))))
(else #f)))
(let ((ht (make-eq-hashtable)))
(let ((file (format #f "~A/~A" base-path "package-list.sds")))
(when (file-exists? file)
(call-with-input-file file
(lambda (in)
(do ((i (read in) (read in)))
((eof-object? i))
(let ((name (car i))
(version (get-version (cdr i)))
(depends (cond ((assq 'depends (cdr i)) => cdr)
(else #f)))
(description (let ((d (assq 'description (cdr i))))
(and d (apply string-append (cdr d)))))
(status #f))
(hashtable-set! ht name
(make-pkg-info name version depends description status))))))))
(let ((file (format #f "~A/~A" base-path "install.sds")))
(when (file-exists? file)
(call-with-input-file file
(lambda (in)
(do ((i (read in) (read in)))
((eof-object? i))
(let ((name (car i))
(status (and (cadr i) #t))
(version (get-version (cddr i))))
(if (hashtable-contains? ht name)
(let ((p (hashtable-ref ht name)))
(pkg-info-status-set! p
(make-pkg-stat status version))
(hashtable-set! ht name p))
(hashtable-set! ht name
(make-pkg-info name #f #f #f
(make-pkg-stat status version))))))))))
ht))
(define (write-install-status pkg-ht)
(let ((file (format #f "~A/~A" base-path "install.sds")))
(call-with-output-file file
(lambda (out)
(let-values (((ks vs) (hashtable-entries pkg-ht)))
(vector-for-each
(lambda (key val)
(let ((stat (pkg-info-status val)))
(when (pkg-stat? stat)
(write (cons*
key (pkg-stat-status stat)
(if (version? (pkg-stat-version stat))
(list (version->list (pkg-stat-version stat)))
'()))
out)
(newline out))))
ks vs))))))
(define (version<? v1 v2)
(cond ((< (version-major v1) (version-major v2)) #t)
((> (version-major v1) (version-major v2)) #f)
(else
(cond ((< (version-minor v1) (version-minor v2)) #t)
((> (version-minor v1) (version-minor v2)) #f)
(else
(cond ((< (version-patch v1) (version-patch v2)) #t)
(else #f)))))))
(define (version->string version)
(string-append (number->string (version-major version))
"." (number->string (version-minor version))
"." (number->string (version-patch version))))
(define (version->list version)
(list 'version
(version-major version)
(version-minor version)
(version-patch version)))
(define (package->symbol p)
(cond
((symbol? p) p)
((string? p) (string->symbol p))
((pkg-info? p) (pkg-info-name p))
(else #f)))
(define (package->string p)
(cond
((symbol? p) (symbol->string p))
((string? p) p)
((pkg-info? p)
(if (version? (pkg-info-version p))
(string-append (symbol->string (pkg-info-name p))
"-"
(version->string (pkg-info-version p)))
(symbol->string (pkg-info-name p))))
(else #f)))
(define (package-installed? p ht)
(cond
((pkg-info? p)
(let ((stat (pkg-info-status p)))
(if (pkg-stat? stat) (pkg-stat-status stat) stat)))
((symbol? p) (package-installed? (hashtable-ref ht p #f) ht))
((string? p) (package-installed? (string->symbol p) ht))
(else #f)))
(define (cmd-wget uri dir)
(or (apply command
((get-config) "wget")
"-N" "-P" dir uri (if (quiet?) '("-q") '()))
(raise (make-download-error uri))))
(define (cmd-gpg signature file)
(let ((gpg ((get-config) "gpg" #f)))
(or (not gpg)
(apply command
gpg
`(,@(if (quiet?) '("-q") '()) "--verify" signature file)))))
(define (cmd-tar file dir)
(apply command
((get-config) "tar")
"-xzf" file "-C" dir (if (quiet?) '() '("-v"))))
(define (download package)
(let* ((config (get-config))
(download-uri (config "download-uri" download-uri))
(pkg-uri (format "~A/~A.tar.gz" download-uri (package->string package)))
(sig-uri (format "~A.asc" pkg-uri))
(src-path (config "source-path" source-path)))
(do-procs
((format "Downloading package: ~A ..." pkg-uri)
(cmd-wget pkg-uri src-path)
#f
"Failed to download the package")
((format "Downloading signature: ~A ..." sig-uri)
(cmd-wget sig-uri src-path)
#f
"Failed to download the signature"))))
(define (verify package)
(let* ((config (get-config))
(src-path (config "source-path" source-path))
(pkg-file (format "~A/~A.tar.gz" src-path (package->string package)))
(sig-file (format "~A.asc" pkg-file)))
(or (not (config "gpg" #f))
(do-procs
("Veryfying package ..."
(cmd-gpg sig-file pkg-file)
#f
"cannot verify package.")))))
(define (decompress package)
(let* ((config (get-config))
(src-path (config "source-path" source-path))
(pkg-file (format "~A/~A.tar.gz" src-path (package->string package))))
(do-procs
("Decompressing package ..."
(cmd-tar pkg-file src-path)
#f
"error in decompressing package"))))
(define (initialize package mode)
(let* ((config (get-config))
(impl (implementation-name))
(src-path (config "source-path" source-path))
(pkg-path (format "~A/~A" source-path (package->string package)))
(install.ss (format "~A/install.ss" pkg-path)))
(do-procs
((format "Setup package for ~A ..." (string-upcase system-name))
(parameterize ((current-directory pkg-path))
(command impl install.ss (symbol->string mode)))
#f
(format "error in ~A" install.ss)))))
(define (setup package mode)
(let* ((config (get-config))
(impl (implementation-name))
(src-path (config "source-path" source-path))
(pkg-path (format "~A/~A" source-path (package->string package)))
(setup.ss (format "~A/setup.ss" pkg-path))
(setup.impl.ss (format "~A/setup.~A.ss" pkg-path impl)))
(do-procs
((format "Setup package to ~A ..." impl)
(parameterize ((current-directory pkg-path))
(command impl
(if (file-exists? setup.impl.ss) setup.impl.ss setup.ss)
(symbol->string mode)))
#f
(format "error in ~A" setup.ss)))))
(define (install package)
(define (install-rec package pkg-ht)
(let ((pi (hashtable-ref pkg-ht (package->symbol package) #f)))
(and (not (package-installed? pi pkg-ht))
(begin
(when (pkg-info? pi)
(let ((depends (pkg-info-depends pi)))
(when depends
(for-each (lambda (dep)
(install-rec dep pkg-ht))
depends))))
(let* ((p (if (pkg-info? pi) pi package))
(package-name (package->string p)))
(let ((r (do-procs
((format "Installing ~A" package-name)
(and (download p)
(verify p)
(decompress p)
(initialize p 'install)
(setup p 'install))
(format "~A is successfully installed.~%" package-name)
(format "~A install failed.~%" package-name)))))
(when r
(if (pkg-info? pi)
(pkg-info-status-set! pi (make-pkg-stat #t (pkg-info-version pi)))
(hashtable-set! pkg-ht
(package->symbol package)
(make-pkg-info package #f #f #f (make-pkg-stat #t #f)))))
r))))))
(let ((pkg-ht (read-package-list)))
(if (package-installed? package pkg-ht)
(begin
(format #t "----> ~A is already installed.~%" (package->string package))
#f)
(let ((r (install-rec package pkg-ht)))
(write-install-status pkg-ht)
r))))
(define (update package)
(define (updatable? pi)
(and (pkg-info? pi)
(let ((stat (pkg-info-status pi)))
(and (pkg-stat? stat)
(version<? (pkg-stat-version stat) (pkg-info-version pi))))))
(define (update-rec package pkg-ht)
(let* ((pi (hashtable-ref pkg-ht (package->symbol package) #f))
(package-name (package->string pi)))
(and (updatable? pi)
(begin
(let ((depends (pkg-info-depends pi)))
(when depends
(for-each (lambda (dep)
(update-rec dep pkg-ht))
depends)))
(let ((r (do-procs
((format "Updating ~A ..." package-name)
(and (download pi)
(verify pi)
(decompress pi)
(initialize pi 'update)
(setup pi 'update))
(format "~A is successfully update.~%" package-name)
(format "~A update failed.~%" package-name)))))
(when r
(if (pkg-info? pi)
(pkg-info-status-set! pi (make-pkg-stat #t (pkg-info-version pi)))
(hashtable-set! pkg-ht
(package->symbol package)
(make-pkg-info package #f #f #f (make-pkg-stat #t #f)))))
r)))))
(let ((pkg-ht (read-package-list)))
(let ((pi (hashtable-ref pkg-ht (package->symbol package) #f)))
(if (updatable? pi)
(let ((r (update-rec package pkg-ht)))
(write-install-status pkg-ht)
r)
(begin
(format #t "----> ~A can't update." (package->string package))
#f)))))
(define (uninstall package)
#f)
)