(module salmonella-html-report (compress-html? egg-dependencies-report egg-reverse-dependencies-report graphics-compressor-args compressed-graphics-extension graphics-compressor compress-graphics? compressed-html-extension html-compressor-args html-compressor salmonella-page-css rank-dependencies rank-test-time rank-installation-time egg-dependencies->dot egg-has-circular-dependencies? dot-installed? egg-test-report egg-test-report-page egg-installation-report egg-installation-report-page make-index sxml-log->html all-dependencies zebra-table cmd-line-arg die ;; circular-dependency record circular-dependency? ) (import scheme) (cond-expand (chicken-4 (import chicken) (use data-structures irregex extras files ports posix srfi-1 srfi-13 utils) (use sxml-transforms salmonella salmonella-log-parser)) ((or chicken-5 chicken-6) (import (chicken base) (chicken condition) (chicken file) (chicken format) (chicken irregex) (chicken pathname) (chicken port) (chicken process) (chicken sort) (chicken string) (chicken time posix)) (import sxml-transforms salmonella salmonella-log-parser srfi-1 srfi-13) (cond-expand (chicken-6 (import (scheme base))) (else))) ) ;;; Parameters (define salmonella-page-css (make-parameter "//wiki.call-cc.org/chicken.css")) (define egg-doc-uri (make-parameter (sprintf "http://wiki.call-cc.org/eggref/~a" (cond-expand (chicken-4 4) (chicken-5 5) (chicken-6 6))))) ;; Compression (define compress-html? (make-parameter #f)) (define html-compressor (make-parameter "gzip")) (define html-compressor-args (make-parameter "-9")) (define compressed-html-extension (make-parameter "htmlz")) (define compress-graphics? (make-parameter #f)) (define graphics-compressor (make-parameter "gzip")) (define graphics-compressor-args (make-parameter "-9")) (define compressed-graphics-extension (make-parameter "svgz")) ;;; Compression (define (maybe-compress-html file) (when (compress-html?) (system* (sprintf "~a ~a -c ~a > ~a" (html-compressor) (html-compressor-args) file (pathname-replace-extension file (compressed-html-extension)))) (delete-file file))) (define (maybe-compress-graphics file) (when (compress-graphics?) (system* (sprintf "~a ~a -c ~a > ~a" (graphics-compressor) (graphics-compressor-args) file (pathname-replace-extension file (compressed-graphics-extension)))) (delete-file file))) (define (html-extension) (if (compress-html?) (compressed-html-extension) "html")) (define (graphics-extension graphics-format) (if (compress-graphics?) (compressed-graphics-extension) graphics-format)) ;;; SXML utils (define (menu egg log active) (let ((locs `((summary . "Report summary") (install . "Installation report") (test . "Test report") (dep-graphs . "Dependency graph") (rev-dep-graphs . "Reverse dependency graph")))) `(ul (@ (id "salmonella-menu")) ,@(filter-map (lambda (item) (let ((path (car item)) (label (cdr item))) `(li ,(cond ((eq? active path) label) ((eq? path 'test) (link-egg-test egg log text: "Test report" relative-path: ".." text-no-test: "Test report")) (else `(a (@ (href ,(if (eq? path 'summary) "../" (conc "../" path "/" egg "." (html-extension))))) ,label)))))) locs)))) (define (page-template content #!key title (use-css? #t)) `((literal "") (html (@ (xmlns "http://www.w3.org/1999/xhtml")) (head (meta (@ (charset "utf-8"))) (meta (@ (name "generator") (content "salmonella-html-report"))) (title ,title) (link (@ (rel "stylesheet") (href ,(salmonella-page-css)) (type "text/css"))) (style (@ (type "text/css")) "#salmonella-menu li { display: inline; list-style-type: none; padding-right: 20px; }")) (body (div (@ (id "content")) ,content))))) (define (zebra-table header rows) `(table ,(if header `(tr ,@(map (lambda (h) `(th ,h)) header)) '()) ,(let ((odd-row #f)) (map (lambda (row) (set! odd-row (not odd-row)) `(tr (@ (class ,(if odd-row "odd" "even"))) ,@(map (lambda (cell) `(td ,cell)) row))) rows)))) (define (link-egg-doc egg log #!optional text omit-text-if-no-doc?) (if (doc-exists? egg log) (let ((egg (symbol->string egg))) `(a (@ (href ,(make-pathname (egg-doc-uri) egg))) ,(or text egg))) (if omit-text-if-no-doc? "" egg))) (define (link-egg-test egg log #!key text relative-path text-no-test) (let ((status (test-status egg log))) (if (and status (not (= status -1))) (let ((egg (symbol->string egg))) `(a (@ (href ,(make-pathname (if relative-path (list relative-path "test") "test") egg (html-extension)))) ,(if (status-zero? status) (or text "ok") (or text "fail")))) (or text-no-test "")))) (define (link-egg-install egg #!optional text) (let ((egg (symbol->string egg))) `(a (@ (href ,(make-pathname "install" egg (html-extension)))) ,(or text egg)))) (define (egg-summary-line egg log #!optional failed?) (let ((str-egg (symbol->string egg)) (broken-deps (broken-dependencies egg log))) (append `((a (@ (href ,(make-pathname "install" str-egg (html-extension)))) ,egg) ,(egg-version egg log) ,(link-egg-doc egg log "egg page" 'omit-text-if-no-doc) (a (@ (href ,(make-pathname "dep-graphs" str-egg (html-extension)))) "dependencies") (a (@ (href ,(make-pathname "rev-dep-graphs" str-egg (html-extension)))) "reverse dependencies")) (if failed? (if (null? broken-deps) '() (list (intersperse (map link-egg-install broken-deps) ", "))) '()) `(,(link-egg-test egg log)) ))) (define sxml-log->html (let ((rules `((literal *preorder* . ,(lambda (t b) b)) . ,universal-conversion-rules*))) (lambda (sxml output-file) (with-output-to-file output-file (lambda () (SRV:send-reply (pre-post-order* sxml rules)))) (maybe-compress-html output-file)))) ;;; Index page (define (render-summary log) (let ((blank '(literal " "))) `((h2 (@ (id "summary")) "Summary") (table (tr (th "Installation") (th "Tests") (th "Documentation") (th "Total")) (tr ;; Installation (td ,(zebra-table #f `(("Ok" ,(count-install-ok log)) ("Failed" ,(count-install-fail log)) (,blank ,blank)))) ;; Tests (td ,(zebra-table #f `(("Ok" ,(count-test-ok log)) ("Failed" ,(count-test-fail log)) ("No test" ,(count-no-test log))))) ;; Documentation (td ,(zebra-table #f `(("Documented" ,(count-documented log)) ("Undocumented" ,(count-undocumented log)) (,blank ,blank)))) ;; Total (td ,(zebra-table #f `(("Total number of eggs" ,(count-total-eggs log with-skipped?: #t)) ("Not skipped" ,(count-total-eggs log with-skipped?: #f)) ("Skipped" ,(length (log-skipped-eggs log)))))) ))))) (define (list-eggs/installation-failed eggs log) (zebra-table '("Egg" "Version" "Doc" "Dependencies" "Reverse dependencies" "Broken dependencies") (map (lambda (egg) (egg-summary-line egg log #t)) (remove (lambda (egg) (status-zero? (install-status egg log))) eggs)))) (define (list-eggs/installation-succeeded eggs log) (define (list-eggs eggs) (zebra-table '("Egg" "Version" "Doc" "Dependencies" "Reverse dependencies" "Tests") (map (lambda (egg) (egg-summary-line egg log #f)) eggs))) `((h3 (@ (id "installation-succeeded-test-failed")) "Tests failed") ,(list-eggs (filter (lambda (egg) (let ((status (install-status egg log)) (test-status (test-status egg log))) (and (status-zero? status) test-status (> test-status 0)))) eggs)) (h3 (@ (id "installation-succeeded-test-succeeded")) "Tests succeeded") ,(list-eggs (filter (lambda (egg) (let ((status (install-status egg log)) (test-status (test-status egg log))) (and (status-zero? status) (status-zero? test-status)))) eggs)) (h3 (@ (id "installation-succeeded-no-test")) "No tests") ,(list-eggs (filter (lambda (egg) (let ((status (install-status egg log)) (test-status (test-status egg log))) (and (status-zero? status) (eq? test-status -1)))) eggs)))) (define (get-egg-maintainer egg log) (let ((meta (meta-data egg log))) (if meta (or (and-let* ((maintainer (or (alist-ref 'maintainer meta) (alist-ref 'author meta)))) (car maintainer)) "") "Could not determine the maintainer -- no egg metadata"))) (define (list-eggs/undocumented log) (let* ((undocumented-eggs (filter-map (lambda (entry) (and (eq? 'check-doc (report-action entry)) (not (status-zero? (report-status entry))) (let ((egg (report-egg entry))) (list egg (get-egg-maintainer egg log))))) log))) (if (null? undocumented-eggs) '() (zebra-table '("Egg" "Maintainer") undocumented-eggs)))) (define (render-warnings log circular-deps) (let ((warnings (append (filter-map (lambda (entry) (let ((action (report-action entry))) (and (memq action '(check-dependencies check-category check-license check-author useless-test-dependencies)) (list (report-egg entry) (report-message entry))))) log) (filter-map (lambda (egg) (let ((gpl-deps (gpl-dependencies egg log))) (and gpl-deps (list egg (conc egg "'s license is " (egg-license egg log) " but it has GPL eggs as dependencies: " (string-intersperse (map ->string gpl-deps) ", ")))))) (log-eggs log)) (map (lambda (egg/circ) (let ((egg (car egg/circ)) (circular-dep (cdr egg/circ))) (list egg (conc egg " (or some egg it depends on) contains circular dependencies")))) circular-deps)))) (if (null? warnings) '() `((h2 (@ (id "warnings")) "Warnings") ,(zebra-table '("Egg" "Warning") warnings))))) (define (make-index log eggs circular-deps) (let* ((date (seconds->string (start-time log))) (title (string-append "Salmonella report")) (skipped-eggs (log-skipped-eggs log))) (page-template `((h1 ,title) (p ,date) ;; TOC (h2 "Table of contents") (ul ,@(append '((li (a (@ (href "#summary")) "Summary")) (li (a (@ (href "#warnings")) "Warnings")) (li (a (@ (href "#installation-failed")) "Installation failed")) (li `((a (@ (href "#installation-succeeded")) "Installation succeeded") (ul (li (a (@ (href "#installation-succeeded-test-failed")) "Test failed")) (li (a (@ (href "#installation-succeeded-test-succeeded")) "Test succeeded")) (li (a (@ (href "#installation-succeeded-no-test")) "No test")))))) '((li (a (@ (href "#undocumented-eggs")) "Undocumented eggs"))) (if (null? skipped-eggs) '() '((li (a (@ (href "#skipped-eggs")) "Skipped eggs")))) '((li (a (@ (href "#ranks")) "Ranks")) (li (a (@ (href "#environment-information")) "Environment information")) (li (a (@ (href "#total-run-time")) "Total run time"))))) ,(render-summary log) ,(render-warnings log circular-deps) (h2 (@ (id "installation-failed")) "Installation failed") ,(list-eggs/installation-failed eggs log) (h2 (@ (id "installation-succeeded")) "Installation succeeded") ,(list-eggs/installation-succeeded eggs log) (h2 (@ (id "undocumented-eggs")) "Undocumented eggs") ,(let ((undocumented (list-eggs/undocumented log))) (if (null? undocumented) '(p "All eggs are documented.") undocumented)) ,(if (null? skipped-eggs) '() `((h2 (@ (id "skipped-eggs")) "Skipped eggs") ,(zebra-table #f (map list skipped-eggs)))) ,(ranks-report) (h2 (@ (id "environment-information")) "Environment information") (pre ,(salmonella-info log)) (h2 (@ (id "total-run-time")) "Total run time") ,(prettify-time (inexact->exact (total-time log))) (div (@ (style "text-align: center; font-size: small;")) "Generated by " (a (@ (href "http://wiki.call-cc.org/egg/salmonella-html-report")) "salmonella-html-report"))) title: (string-append title " - " date)))) ;;; Egg installation report page (define (egg-installation-report egg log #!key menu) `((h1 "Installation output for " ,(link-egg-doc egg log) " " ,(let ((status (install-status egg log))) (if (status-zero? status) "[ok]" "[fail]"))) ,(or menu '()) ,(cond ((not (status-zero? (fetch-status egg log))) `(pre ,(fetch-message egg log))) ((not (meta-data egg log)) '(p "Error reading .meta file")) (else `((p "Installation time: " ,(prettify-time (inexact->exact (install-duration egg log)))) (pre ,(install-message egg log))))))) (define (egg-installation-report-page egg log) (page-template (egg-installation-report egg log menu: (menu egg log 'install)) title: (conc egg ": Installation report"))) ;;; Egg test report page (define (egg-test-report egg log #!key menu) (let ((status (test-status egg log))) `((h1 "Test output for " ,(link-egg-doc egg log) " [" ,(if (status-zero? status) "ok" "fail") "]") ,(or menu '()) ,(if status `((p "Testing time: " ,(prettify-time (inexact->exact (test-duration egg log)))) (pre ,(test-message egg log))) '())))) (define (egg-test-report-page egg log) (page-template (egg-test-report egg log menu: (menu egg log 'test)) title: (conc egg ": Test output"))) ;;; Dependencies (define dot-installed? (let ((installed? 'undetermined)) (lambda () (when (eq? installed? 'undetermined) (set! installed? (handle-exceptions exn #f (and (system* "dot -V > /dev/null 2>&1") #t)))) installed?))) (define (dot->image dot-file graphics-format keep-dot-files?) (let ((graphics-file (pathname-replace-extension dot-file graphics-format))) (when (dot-installed?) (system* (sprintf "dot -T~a -o ~A ~A 2>&1" graphics-format graphics-file dot-file)) (unless keep-dot-files? (delete-file dot-file))) (maybe-compress-graphics graphics-file))) (define (link->dot egg link log reverse?) (let* ((orig (car link)) (dest (cdr link)) (direct-dep? (if reverse? (direct-reverse-dependency? egg orig log) (direct-dependency? egg dest log)))) (conc (egg->dot (car link)) " -> " (egg->dot (cdr link)) (if direct-dep? "" "[ color = gray ]") ";"))) (define (egg->dot name) (let ((name (->string name))) (string-append "_" ;; for eggnames starting with numbers (e.g., 9p) and the ;; digraph egg (irregex-replace/all "[-+]" name "_")))) (define (label->dot label log) (let ((egg (car label)) (version (cadr label)) (license (caddr label))) (conc (egg->dot egg) " [label=\"" egg (if version (conc " (" version ")") "") (if license (conc "\\n(" license ")") "") "\"" ;; If egg installation failed, paint the node red (let ((status (install-status egg log))) (if (status-zero? status) "" ",color=red,style=filled")) ;; If egg test failed, paint the node border red (let ((status (test-status egg log))) (if (and status (not (= status -1)) (not (zero? status))) ",color=red" "")) "]"))) (define (dot-graph egg labels links log reverse?) (string-append "digraph eggs {\n" "node [fontsize=8]\n" (string-intersperse (map (lambda (label) (label->dot label log)) labels) "\n") "\n" (string-intersperse (map (lambda (link) (link->dot egg link log reverse?)) links) "\n") "\n}")) (define reverse-dependencies (let ((rev-deps '())) (lambda (egg log) (or (alist-ref egg rev-deps) (let ((deps (filter (lambda (e) (memq egg (egg-dependencies e log))) (log-eggs log)))) (set! rev-deps (cons (cons egg deps) rev-deps)) deps))))) (define (direct-reverse-dependency? egg1 egg2 log) (and (memq egg2 (reverse-dependencies egg1 log)) #t)) (define (direct-dependency? egg1 egg2 log) (and (memq egg2 (egg-dependencies egg1 log)) #t)) (define (all-dependencies root-egg eggs log #!optional reverse?) ;; Returns a list of [reverse] dependencies for the given egg or a ;; circular-dependency object if a circular dependency is detected. ;; This procedure is just a helper, not intented to be used by ;; regular code. Use `all-egg-dependencies' instead. (let ((visited '())) (define (get-deps egg) (let ((deps (if (memq egg eggs) (if reverse? (reverse-dependencies egg log) (egg-dependencies egg log)) '()))) (cond ((null? deps) '()) ((find (lambda (dep) (member (cons dep egg) visited)) deps) => (lambda (circular) (list (make-circular-dependency egg circular)))) (else (for-each (lambda (dep) (set! visited (cons (cons egg dep) visited))) deps) (append deps (map get-deps deps)))))) (let ((deps (flatten (get-deps root-egg)))) (cond ((find circular-dependency? deps) => identity) (else (delete-duplicates deps)))))) (define-record circular-dependency egg1 egg2) (define (all-egg-dependencies egg eggs/deps circular-deps) (or (alist-ref egg eggs/deps) (alist-ref egg circular-deps))) (define (egg-has-circular-dependencies? egg circular-deps) (and (alist-ref egg circular-deps) #t)) (define (egg-dependencies->dot egg log dep-graphs-dir graphics-format keep-dot-files? #!key reverse?) (let ((links '()) (labels '()) (eggs (log-eggs log))) (define (add-link! from to) (unless (member (cons from to) links) (set! links (cons (cons from to) links)))) (define (add-label! egg version license) (let ((egg/version/license (list egg version license))) (unless (member egg/version/license labels) (set! labels (cons egg/version/license labels))))) (define (egg-deps->dot! egg) (when (memq egg eggs) (let ((deps (if reverse? (reverse-dependencies egg log) (egg-dependencies egg log)))) (add-label! egg (egg-version egg log) (egg-license egg log)) (for-each (lambda (dep) (add-label! dep (egg-version dep log) (egg-license dep log)) (egg-deps->dot! dep) (if reverse? (add-link! dep egg) (add-link! egg dep))) deps)))) (egg-deps->dot! egg) (let ((dot-file (make-pathname dep-graphs-dir (symbol->string egg) "dot"))) (with-output-to-file dot-file (lambda () (print (dot-graph egg labels links log reverse?)))) (dot->image dot-file graphics-format keep-dot-files?)))) (define (color-legend) `((h4 "Legend") (table (@ (style "width: 300px;")) (tr (td (div (@ (style ,(string-append "width: 15px;" "height: 15px;" "background-color: red;"))))) (td "Egg whose installation failed")) (tr (td (div (@ (style ,(string-append "width: 12px;" "height: 12px;" "border-style: solid;" "border-width: 2px;" "border-color: red;"))))) (td "Egg whose tests failed")) (tr (td (hr (@ (style ,(string-append "width: 15px;" "background-color: black;" "height: 3px;" "border: 0px;" ))))) (td "Direct connection")) (tr (td (hr (@ (style ,(string-append "width: 15px;" "background-color: gray;" "height: 3px;" "border: 0px;" ))))) (td "Indirect connection"))))) (define (deps-report egg eggs/deps circular-deps graphics-format log reverse?) (page-template `(,(if reverse? `(h1 "Reverse dependencies for " ,(link-egg-doc egg log)) `(h1 "Dependencies for " ,(link-egg-doc egg log))) ,(menu egg log (if reverse? 'rev-dep-graphs 'dep-graphs)) ,(let ((all-deps (all-egg-dependencies egg eggs/deps circular-deps))) (if (circular-dependency? all-deps) `((p "This egg (or some egg " ,(if reverse? "that depends on it" "it depends on") ") contains circular dependencies.") ,(let ((egg1 (circular-dependency-egg1 all-deps)) (egg2 (circular-dependency-egg2 all-deps))) `(p (code ,egg1) " depends on " (code ,egg2) " and " (code ,egg2) " depends on " (code ,egg1) "."))) (let* ((total-deps (length all-deps)) (num-direct-deps (length (if reverse? (reverse-dependencies egg log) (egg-dependencies egg log)))) (num-indirect-deps (- total-deps num-direct-deps))) `((p ,(case total-deps ((0) (if reverse? (conc "No egg depends on " egg ".") (conc egg " has no dependencies."))) ((1) (if reverse? (conc "1 egg depends on " egg ".") (conc egg " has 1 dependency."))) (else (if reverse? (conc total-deps " eggs depend on " egg " (" num-direct-deps " direct, " num-indirect-deps " indirect)") (conc egg " has " total-deps " dependencies " "(" num-direct-deps " direct, " num-indirect-deps " indirect)"))))) (p (img (@ (src ,(make-pathname #f (symbol->string egg) (graphics-extension graphics-format))) (alt ,(conc (if reverse? "Reverse dependencies" "Dependencies") " graph for " egg))))) ,(color-legend)))))) title: (conc egg ": " (if reverse? "Reverse dependencies" "Dependencies")))) (define (egg-dependencies-report egg eggs/deps circular-deps graphics-format log) (deps-report egg eggs/deps circular-deps graphics-format log #f)) (define (egg-reverse-dependencies-report egg eggs/rev-deps circular-rev-deps graphics-format log) (deps-report egg eggs/rev-deps circular-rev-deps graphics-format log #t)) ;;; Broken dependencies (define broken-dependencies (let ((all-eggs #f)) (lambda (egg log) (unless all-eggs (set! all-eggs (log-eggs log))) (let ((deps (egg-dependencies egg log))) (filter (lambda (dep) (and (memq dep all-eggs) (not (status-zero? (install-status dep log))))) deps))))) ;;; GPL infection (define (gpl? license) (let ((license (->string license))) (and license (or (string-prefix-ci? "GPL" license) (string-prefix-ci? "AGPL" license))))) (define (gpl-dependencies egg log) (and (not (gpl? (egg-license egg log))) (let* ((deps (egg-dependencies egg log with-test-dependencies?: #f)) (gpl-deps (filter-map (lambda (egg) (and (gpl? (egg-license egg log)) egg)) deps))) (and (not (null? gpl-deps)) gpl-deps)))) ;;; Ranks (define (ranks-report) `((h2 (@ (id "ranks")) "Ranks") (ul (li (a (@ (href ,(make-pathname "ranks" "installation-time" (html-extension)))) "Installation time")) (li (a (@ (href ,(make-pathname "ranks" "test-time" (html-extension)))) "Test time")) (li (a (@ (href ,(make-pathname "ranks" "deps" (html-extension)))) "Dependencies")) (li (a (@ (href ,(make-pathname "ranks" "rev-deps" (html-extension)))) "Reverse dependencies"))))) (define (rank-duration action log) (map (lambda (egg/duration) (list (car egg/duration) (prettify-time (cdr egg/duration)))) (sort (filter-map (lambda (entry) (let ((entry-action (report-action entry))) (and (eq? action entry-action) (let ((egg (symbol->string (report-egg entry)))) (cons `(a (@ (href ,(make-pathname (list ".." (symbol->string action)) egg (html-extension)))) ,egg) (report-duration entry)))))) log) (lambda (a b) (> (cdr a) (cdr b)))))) (define (rank-page-nav) '(p (a (@ (href "..")) "Report summary"))) (define (rank-installation-time log) (page-template `((h1 "Installation time rank") ,(rank-page-nav) ,(zebra-table '("Egg" "Instalation time") (rank-duration 'install log))) title: "Installation time rank")) (define (rank-test-time log) (page-template `((h1 "Test time rank") ,(rank-page-nav) ,(zebra-table `("Egg" "Test time") (rank-duration 'test log))) title: "Test time rank")) (define (rank-dependencies log eggs/deps circular-deps graphs-disabled? #!optional reverse?) (define (link-dep egg) (if graphs-disabled? egg `(a (@ (href ,(make-pathname (list ".." (if reverse? "rev-dep-graphs" "dep-graphs")) (symbol->string egg) (html-extension)))) ,egg))) (page-template `((h1 ,(if reverse? "Reverse dependencies rank" "Dependencies rank")) ,(rank-page-nav) ,(zebra-table `("Egg" ,(if reverse? "Number of reverse dependencies" "Number of dependencies") "Percentage of the total number of eggs") (let* ((all-eggs (log-eggs log)) (num-eggs (length all-eggs))) (sort (map (lambda (egg) (let* ((all-deps (all-egg-dependencies egg eggs/deps circular-deps)) (num-deps (length all-deps))) (list (link-dep egg) num-deps (conc (inexact->exact (round (* (/ num-deps num-eggs) 100))) "%")))) (remove (lambda (egg) (egg-has-circular-dependencies? egg circular-deps)) all-eggs)) (lambda (a b) (> (cadr a) (cadr b)))))) ,(if (null? circular-deps) '() `((h2 "Eggs with circular dependencies" ,(if reverse? " in their reverse depedencies" "")) (ul ,@(map (lambda (egg) `(li ,(link-dep egg))) (map car circular-deps)))))) title: (if reverse? "Reverse dependencies rank" "Dependencies rank"))) ;;; Misc (define (cmd-line-arg option args) ;; Returns the argument associated to the command line option OPTION ;; in ARGS or #f if OPTION is not found in ARGS or doesn't have any ;; argument. (let ((val (any (lambda (arg) (irregex-match `(seq ,(->string option) "=" (submatch (* any))) arg)) args))) (and val (irregex-match-substring val 1)))) (define (die . msg) (with-output-to-port (current-error-port) (lambda () (print (apply conc msg)))) (exit 1)) ) ;; end module