diff options
| -rw-r--r-- | Makefile.am | 1 | ||||
| -rw-r--r-- | guix/colors.scm | 129 | ||||
| -rw-r--r-- | guix/status.scm | 44 | ||||
| -rw-r--r-- | guix/ui.scm | 55 |
4 files changed, 132 insertions, 97 deletions
diff --git a/Makefile.am b/Makefile.am index c331da7267..87682b4949 100644 --- a/Makefile.am +++ b/Makefile.am @@ -138,6 +138,7 @@ MODULES = \ guix/store.scm \ guix/cvs-download.scm \ guix/svn-download.scm \ + guix/colors.scm \ guix/i18n.scm \ guix/ui.scm \ guix/status.scm \ diff --git a/guix/colors.scm b/guix/colors.scm new file mode 100644 index 0000000000..fad0bd2ab9 --- /dev/null +++ b/guix/colors.scm @@ -0,0 +1,129 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2013, 2014 Free Software Foundation, Inc. +;;; Copyright © 2018 Sahithi Yarlagadda <sahi@swecha.net> +;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net> +;;; Copyright © 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> +;;; +;;; This file is part of GNU Guix. +;;; +;;; GNU Guix is free software; you can redistribute it and/or modify it +;;; under the terms of the GNU General Public License as published by +;;; the Free Software Foundation; either version 3 of the License, or (at +;;; your option) any later version. +;;; +;;; GNU Guix is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (guix colors) + #:use-module (guix memoization) + #:use-module (srfi srfi-1) + #:use-module (ice-9 match) + #:use-module (ice-9 regex) + #:export (colorize-string + color-rules + color-output? + isatty?*)) + +;;; Commentary: +;;; +;;; This module provides tools to produce colored output using ANSI escapes. +;;; +;;; Code: + +(define color-table + `((CLEAR . "0") + (RESET . "0") + (BOLD . "1") + (DARK . "2") + (UNDERLINE . "4") + (UNDERSCORE . "4") + (BLINK . "5") + (REVERSE . "6") + (CONCEALED . "8") + (BLACK . "30") + (RED . "31") + (GREEN . "32") + (YELLOW . "33") + (BLUE . "34") + (MAGENTA . "35") + (CYAN . "36") + (WHITE . "37") + (ON-BLACK . "40") + (ON-RED . "41") + (ON-GREEN . "42") + (ON-YELLOW . "43") + (ON-BLUE . "44") + (ON-MAGENTA . "45") + (ON-CYAN . "46") + (ON-WHITE . "47"))) + +(define (color . lst) + "Return a string containing the ANSI escape sequence for producing the +requested set of attributes in LST. Unknown attributes are ignored." + (let ((color-list + (remove not + (map (lambda (color) (assq-ref color-table color)) + lst)))) + (if (null? color-list) + "" + (string-append + (string #\esc #\[) + (string-join color-list ";" 'infix) + "m")))) + +(define (colorize-string str . color-list) + "Return a copy of STR colorized using ANSI escape sequences according to the +attributes STR. At the end of the returned string, the color attributes will +be reset such that subsequent output will not have any colors in effect." + (string-append + (apply color color-list) + str + (color 'RESET))) + +(define isatty?* + (mlambdaq (port) + "Return true if PORT is a tty. Memoize the result." + (isatty? port))) + +(define (color-output? port) + "Return true if we should write colored output to PORT." + (and (not (getenv "INSIDE_EMACS")) + (not (getenv "NO_COLOR")) + (isatty?* port))) + +(define-syntax color-rules + (syntax-rules () + "Return a procedure that colorizes the string it is passed according to +the given rules. Each rule has the form: + + (REGEXP COLOR1 COLOR2 ...) + +where COLOR1 specifies how to colorize the first submatch of REGEXP, and so +on." + ((_ (regexp colors ...) rest ...) + (let ((next (color-rules rest ...)) + (rx (make-regexp regexp))) + (lambda (str) + (if (string-index str #\nul) + str + (match (regexp-exec rx str) + (#f (next str)) + (m (let loop ((n 1) + (c '(colors ...)) + (result '())) + (match c + (() + (string-concatenate-reverse result)) + ((first . tail) + (loop (+ n 1) tail + (cons (colorize-string (match:substring m n) + first) + result))))))))))) + ((_) + (lambda (str) + str)))) diff --git a/guix/status.scm b/guix/status.scm index bddaa003db..7edb558ee7 100644 --- a/guix/status.scm +++ b/guix/status.scm @@ -20,7 +20,7 @@ (define-module (guix status) #:use-module (guix records) #:use-module (guix i18n) - #:use-module ((guix ui) #:select (colorize-string)) + #:use-module (guix colors) #:use-module (guix progress) #:autoload (guix build syscalls) (terminal-columns) #:use-module ((guix build download) @@ -339,10 +339,6 @@ build-log\" traces." (and (current-store-protocol-version) (>= (current-store-protocol-version) #x163))) -(define isatty?* - (mlambdaq (port) - (isatty? port))) - (define spin! (let ((steps (circular-list "\\" "|" "/" "-"))) (lambda (phase port) @@ -362,44 +358,6 @@ the current build phase." (format port (G_ "'~a' phase") phase)) (force-output port))))))) -(define (color-output? port) - "Return true if we should write colored output to PORT." - (and (not (getenv "INSIDE_EMACS")) - (not (getenv "NO_COLOR")) - (isatty?* port))) - -(define-syntax color-rules - (syntax-rules () - "Return a procedure that colorizes the string it is passed according to -the given rules. Each rule has the form: - - (REGEXP COLOR1 COLOR2 ...) - -where COLOR1 specifies how to colorize the first submatch of REGEXP, and so -on." - ((_ (regexp colors ...) rest ...) - (let ((next (color-rules rest ...)) - (rx (make-regexp regexp))) - (lambda (str) - (if (string-index str #\nul) - str - (match (regexp-exec rx str) - (#f (next str)) - (m (let loop ((n 1) - (c '(colors ...)) - (result '())) - (match c - (() - (string-concatenate-reverse result)) - ((first . tail) - (loop (+ n 1) tail - (cons (colorize-string (match:substring m n) - first) - result))))))))))) - ((_) - (lambda (str) - str)))) - (define colorize-log-line ;; Take a string and return a possibly colorized string according to the ;; rules below. diff --git a/guix/ui.scm b/guix/ui.scm index 0070301c47..c2807b711f 100644 --- a/guix/ui.scm +++ b/guix/ui.scm @@ -10,8 +10,6 @@ ;;; Copyright © 2016 Roel Janssen <roel@gnu.org> ;;; Copyright © 2016 Benz Schenk <benz.schenk@uzh.ch> ;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com> -;;; Copyright © 2013, 2014 Free Software Foundation, Inc. -;;; Copyright © 2018 Sahithi Yarlagadda <sahi@swecha.net> ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net> ;;; ;;; This file is part of GNU Guix. @@ -118,8 +116,7 @@ guix-warning-port warning info - guix-main - colorize-string)) + guix-main)) ;;; Commentary: ;;; @@ -1703,54 +1700,4 @@ and signal handling has already been set up." (initialize-guix) (apply run-guix args)) -(define color-table - `((CLEAR . "0") - (RESET . "0") - (BOLD . "1") - (DARK . "2") - (UNDERLINE . "4") - (UNDERSCORE . "4") - (BLINK . "5") - (REVERSE . "6") - (CONCEALED . "8") - (BLACK . "30") - (RED . "31") - (GREEN . "32") - (YELLOW . "33") - (BLUE . "34") - (MAGENTA . "35") - (CYAN . "36") - (WHITE . "37") - (ON-BLACK . "40") - (ON-RED . "41") - (ON-GREEN . "42") - (ON-YELLOW . "43") - (ON-BLUE . "44") - (ON-MAGENTA . "45") - (ON-CYAN . "46") - (ON-WHITE . "47"))) - -(define (color . lst) - "Return a string containing the ANSI escape sequence for producing the -requested set of attributes in LST. Unknown attributes are ignored." - (let ((color-list - (remove not - (map (lambda (color) (assq-ref color-table color)) - lst)))) - (if (null? color-list) - "" - (string-append - (string #\esc #\[) - (string-join color-list ";" 'infix) - "m")))) - -(define (colorize-string str . color-list) - "Return a copy of STR colorized using ANSI escape sequences according to the -attributes STR. At the end of the returned string, the color attributes will -be reset such that subsequent output will not have any colors in effect." - (string-append - (apply color color-list) - str - (color 'RESET))) - ;;; ui.scm ends here |