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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2019, 2020 Ludovic Courtès <>
;;; Copyright © 2020 Björn Höfling <>
;;; 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
;;; 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 <>.
;; This file contains machinery to build HTML and PDF copies of the manual
;; that can be readily published on the web site. To do that, run:
;; guix build -f build.scm
;; The result is a directory hierarchy that can be used as the manual/
;; sub-directory of the web site.
(use-modules (guix)
(guix gexp)
(guix git)
(guix git-download)
(guix utils)
(gnu packages base)
(gnu packages gawk)
(gnu packages gettext)
(gnu packages guile)
(gnu packages guile-xyz)
(gnu packages iso-codes)
(gnu packages texinfo)
(gnu packages tex)
(srfi srfi-19)
(srfi srfi-71))
(define file-append*
(@@ (guix self) file-append*))
(define translated-texi-manuals
(@@ (guix self) translate-texi-manuals))
(define info-manual
(@@ (guix self) info-manual))
(define %manual
;; The manual to build--i.e., the base name of a .texi file, such as "guix"
;; or "guix-cookbook".
(or (getenv "GUIX_MANUAL")
(define %languages
;; The cookbook is currently only translated into German.
(if (string=? %manual "guix-cookbook")
'("de" "en")
'("de" "en" "es" "fr" "ru" "zh_CN")))
(define (texinfo-manual-images source)
"Return a directory containing all the images used by the user manual, taken
from SOURCE, the root of the source tree."
(define graphviz
(module-ref (resolve-interface '(gnu packages graphviz))
(define images
(file-append* source "doc/images"))
(define build
(with-imported-modules '((guix build utils))
(use-modules (guix build utils)
(srfi srfi-26))
(define (dot->image dot-file format)
(invoke #+(file-append graphviz "/bin/dot")
"-T" format "-Gratio=.9" "-Gnodesep=.005"
"-Granksep=.00005" "-Nfontsize=9"
"-Nheight=.1" "-Nwidth=.1"
"-o" (string-append #$output "/"
(basename dot-file ".dot")
"." format)
;; Build graphs.
(mkdir-p #$output)
(for-each (lambda (dot-file)
(for-each (cut dot->image dot-file <>)
'("png" "pdf")))
(find-files #$images "\\.dot$"))
;; Copy other PNGs.
(for-each (lambda (png-file)
(install-file png-file #$output))
(find-files #$images "\\.png$")))))
(computed-file "texinfo-manual-images" build))
(define* (texinfo-manual-source source #:key
(version "0.0")
(languages %languages)
(date 1))
"Gather all the source files of the Texinfo manuals from SOURCE--.texi file
as well as images, OS examples, and translations."
(define documentation
(file-append* source "doc"))
(define examples
(file-append* source "gnu/system/examples"))
(define build
(with-imported-modules '((guix build utils))
(use-modules (guix build utils)
(srfi srfi-19))
(define (make-version-texi language)
;; Create the 'version.texi' file for LANGUAGE.
(let ((file (if (string=? language "en")
(string-append "version-" language ".texi"))))
(call-with-output-file (string-append #$output "/" file)
(lambda (port)
(let* ((version #$version)
(time (make-time time-utc 0 #$date))
(date (time-utc->date time)))
(format port "
@set UPDATED ~a
@set EDITION ~a
@set VERSION ~a\n"
(date->string date "~e ~B ~Y")
(date->string date "~B ~Y")
version version))))))
(install-file #$(file-append documentation "/htmlxref.cnf")
(for-each (lambda (texi)
(install-file texi #$output))
(append (find-files #$documentation "\\.(texi|scm|json)$")
(find-files #$(translated-texi-manuals source)
;; Create 'version.texi'.
(for-each make-version-texi '#$languages)
;; Copy configuration templates that the manual includes.
(for-each (lambda (template)
(copy-file template
#$output "/os-config-"
(basename template ".tmpl")
(find-files #$examples "\\.tmpl$"))
(symlink #$(texinfo-manual-images source)
(string-append #$output "/images")))))
(computed-file "texinfo-manual-source" build))
(define %web-site-url
;; URL of the web site home page.
(or (getenv "GUIX_WEB_SITE_URL")
(define %makeinfo-html-options
;; Options passed to 'makeinfo --html'.
"-c" "EXTRA_HEAD=<meta name=\"viewport\" \
content=\"width=device-width, initial-scale=1\" />"))
(define guile-lib/htmlprag-fixed
;; Guile-Lib with a hotfix for (htmlprag).
(inherit guile-lib)
(substitute-keyword-arguments (package-arguments guile-lib)
((#:phases phases '%standard-phases)
`(modify-phases ,phases
(add-before 'build 'fix-htmlprag
(lambda _
;; When parsing
;; "<body><blockquote><p>foo</p>\n</blockquote></body>",
;; 'html->shtml' would mistakenly close 'blockquote' right
;; before <p>. This patch removes 'p' from the
;; 'parent-constraints' alist to fix that.
(substitute* "src/htmlprag.scm"
(("^[[:blank:]]*\\(p[[:blank:]]+\\. \\(body td th\\)\\).*")
(add-before 'check 'skip-known-failure
(lambda _
;; XXX: The above change causes one test failure among
;; the htmlprag tests.
(setenv "XFAIL_TESTS" "htmlprag.scm")
(define* (syntax-highlighted-html input
(name "highlighted-syntax")
"Return a derivation called NAME that processes all the HTML files in INPUT
to (1) add them a link to SYNTAX-CSS-URL, and (2) highlight the syntax of all
its <pre class=\"lisp\"> blocks (as produced by 'makeinfo --html')."
(define build
(with-extensions (list guile-lib/htmlprag-fixed guile-syntax-highlight)
(with-imported-modules '((guix build utils))
(use-modules (htmlprag)
(syntax-highlight scheme)
(syntax-highlight lexers)
(guix build utils)
(srfi srfi-1)
(srfi srfi-26)
(ice-9 match)
(ice-9 threads)
(ice-9 vlist))
(define (pair-open/close lst)
;; Pair 'open' and 'close' tags produced by 'highlights' and
;; produce nested 'paren' tags instead.
(let loop ((lst lst)
(level 0)
(result '()))
(match lst
((('open open) rest ...)
(lambda ()
(loop rest (+ 1 level) '()))
(lambda (inner close rest)
(loop rest level
(cons `(paren ,level ,open ,inner ,close)
((('close str) rest ...)
(if (> level 0)
(values (reverse result) str rest)
(format (current-error-port)
"warning: extra closing paren; context:~% ~y~%"
(reverse result))
(loop rest 0 (cons `(close ,str) result)))))
((item rest ...)
(loop rest level (cons item result)))
(when (> level 0)
(format (current-error-port)
"warning: missing ~a closing parens; context:~% ~y%"
level (reverse result)))
(values (reverse result) "" '())))))
(define (highlights->sxml* highlights anchors)
;; Like 'highlights->sxml', but handle nested 'paren tags. This
;; allows for paren matching highlights via appropriate CSS
;; "hover" properties. When a symbol is encountered, look it up
;; in ANCHORS, a vhash, and emit the corresponding href, if any.
(define (tag->class tag)
(string-append "syntax-" (symbol->string tag)))
(map (match-lambda
((? string? str) str)
(('paren level open (body ...) close)
`(span (@ (class ,(string-append "syntax-paren"
(number->string level))))
(span (@ (class "syntax-symbol"))
,@(highlights->sxml* body anchors))
(('symbol text)
;; Check whether we can emit a hyperlink for TEXT.
(match (vhash-assoc text anchors)
`(span (@ (class ,(tag->class 'symbol))) ,text))
((_ . target)
`(a (@ (class ,(tag->class 'symbol)) (href ,target))
((tag text)
`(span (@ (class ,(tag->class tag))) ,text)))
(define entity->string
("rArr" "⇒")
("rarr" "→")
("hellip" "…")
("rsquo" "’")
(e (pk 'unknown-entity e) (primitive-exit 2))))
(define (concatenate-snippets pieces)
;; Concatenate PIECES, which contains strings and entities,
;; replacing entities with their corresponding string.
(let loop ((pieces pieces)
(strings '()))
(match pieces
(string-concatenate-reverse strings))
(((? string? str) . rest)
(loop rest (cons str strings)))
((('*ENTITY* "additional" entity) . rest)
(loop rest (cons (entity->string entity) strings)))
((('span _ lst ...) . rest) ;for <span class="roman">
(loop (append lst rest) strings))
(pk 'unsupported-code-snippet something)
(primitive-exit 1)))))
(define (syntax-highlight sxml anchors)
;; Recurse over SXML and syntax-highlight code snippets.
(let loop ((sxml sxml))
(match sxml
(('*TOP* decl body ...)
`(*TOP* ,decl ,@(map loop body)))
(('head things ...)
`(head ,@things
(link (@ (rel "stylesheet")
(type "text/css")
(href #$syntax-css-url)))))
(('pre ('@ ('class "lisp")) code-snippet ...)
`(pre (@ (class "lisp"))
(highlight lex-scheme
(concatenate-snippets code-snippet)))
((tag ('@ attributes ...) body ...)
`(,tag (@ ,@attributes) ,@(map loop body)))
((tag body ...)
`(,tag ,@(map loop body)))
((? string? str)
(define (underscore-decode str)
;; Decode STR, an "underscore-encoded" string as produced by
;; makeinfo for indexes, such as "_0025base_002dservices" for
;; "%base-services".
(let loop ((str str)
(result '()))
(match (string-index str #\_)
(string-concatenate-reverse (cons str result)))
(let ((char (string->number
(substring str (+ index 1) (+ index 5))
(loop (string-drop str (+ index 5))
(append (list (string (integer->char char))
(string-take str index))
(define (anchor-id->key id)
;; Convert ID, an anchor ID such as
;; "index-pam_002dlimits_002dservice" to the corresponding key,
;; "pam-limits-service" in this example. Drop the suffix of
;; duplicate anchor IDs like "operating_002dsystem-1".
(let ((id (if (any (cut string-suffix? <> id)
'("-1" "-2" "-3" "-4" "-5"))
(string-drop-right id 2)
(string-drop id (string-length "index-")))))
(define* (collect-anchors file #:optional (vhash vlist-null))
;; Collect the anchors that appear in FILE, a makeinfo-generated
;; file. Grab those from <dt> tags, which corresponds to
;; Texinfo @deftp, @defvr, etc. Return VHASH augmented with
;; more name/reference pairs.
(define string-or-entity?
((? string?) #t)
(('*ENTITY* _ ...) #t)
(_ #f)))
(define (worthy-entry? lst)
;; Attempt to match:
;; Scheme Variable: <strong>x</strong>
;; but not:
;; <code>cups-configuration</code> parameter: …
(let loop ((lst lst))
(match lst
(((? string-or-entity?) rest ...)
(loop rest))
((('strong _ ...) _ ...)
(_ #f))))
(let ((shtml (call-with-input-file file html->shtml)))
(let loop ((shtml shtml)
(vhash vhash))
(match shtml
(('dt ('@ ('id id)) rest ...)
(if (and (string-prefix? "index-" id)
(worthy-entry? rest))
(vhash-cons (anchor-id->key id)
(string-append (basename file)
"#" id)
((tag ('@ _ ...) body ...)
(fold loop vhash body))
((tag body ...)
(fold loop vhash body))
(_ vhash)))))
(define (process-html file anchors)
;; Parse FILE and perform syntax highlighting for its Scheme
;; snippets. Install the result to #$output.
(format (current-error-port) "processing ~a...~%" file)
(let* ((shtml (call-with-input-file file html->shtml))
(highlighted (syntax-highlight shtml anchors))
(base (string-drop file (string-length #$input)))
(target (string-append #$output base)))
(mkdir-p (dirname target))
(call-with-output-file target
(lambda (port)
(write-shtml-as-html highlighted port)))))
(define (copy-as-is file)
;; Copy FILE as is to #$output.
(let* ((base (string-drop file (string-length #$input)))
(target (string-append #$output base)))
(mkdir-p (dirname target))
(catch 'system-error
(lambda ()
(if (eq? 'symlink (stat:type (lstat file)))
(symlink (readlink file) target)
(link file target)))
(lambda args
(let ((errno (system-error-errno args)))
(pk 'error-link file target (strerror errno))
(primitive-exit 3))))))
(define (html? file stat)
(string-suffix? ".html" file))
;; Install a UTF-8 locale so we can process UTF-8 files.
(setenv "GUIX_LOCPATH"
#+(file-append glibc-utf8-locales "/lib/locale"))
(setlocale LC_ALL "en_US.utf8")
;; First process the mono-node 'guix.html' files.
(n-par-for-each (parallel-job-count)
(lambda (mono)
(let ((anchors (collect-anchors mono)))
(process-html mono anchors)))
;; Next process the multi-node HTML files in two phases: (1)
;; collect the list of anchors, and (2) perform
;; syntax-highlighting.
(let* ((multi (find-files #$input "^html_node$"
#:directories? #t))
(anchors (n-par-map (parallel-job-count)
(lambda (multi)
(cons multi
(fold collect-anchors vlist-null
(find-files multi html?))))
(n-par-for-each (parallel-job-count)
(lambda (file)
(let ((anchors (assoc-ref anchors (dirname file))))
(process-html file anchors)))
(append-map (lambda (multi)
(find-files multi html?))
;; Last, copy non-HTML files as is.
(for-each copy-as-is
(find-files #$input (negate html?)))))))
(computed-file name build))
(define* (html-manual source #:key (languages %languages)
(version "0.0")
(manual %manual)
(date 1)
(options %makeinfo-html-options))
"Return the HTML manuals built from SOURCE for all LANGUAGES, with the given
makeinfo OPTIONS."
(define manual-source
(texinfo-manual-source source
#:version version
#:languages languages
#:date date))
(define images
(texinfo-manual-images source))
(define build
(with-imported-modules '((guix build utils))
(use-modules (guix build utils)
(ice-9 match))
(define (normalize language)
;; Normalize LANGUAGE. For instance, "zh_CN" becomes "zh-cn".
(string-map (match-lambda
(#\_ #\-)
(chr chr))
(string-downcase language)))
(define (language->texi-file-name language)
(if (string=? language "en")
(string-append #$manual-source "/"
#$manual ".texi")
(string-append #$manual-source "/"
#$manual "." language ".texi")))
;; Install a UTF-8 locale so that 'makeinfo' is at ease.
(setenv "GUIX_LOCPATH"
#+(file-append glibc-utf8-locales "/lib/locale"))
(setenv "LC_ALL" "en_US.utf8")
(setvbuf (current-output-port) 'line)
(setvbuf (current-error-port) 'line)
;; 'makeinfo' looks for "htmlxref.cnf" in the current directory, so
;; copy it right here.
(copy-file (string-append #$manual-source "/htmlxref.cnf")
(for-each (lambda (language)
(let* ((texi (language->texi-file-name language))
(opts `("--html"
"-c" ,(string-append "TOP_NODE_UP_URL=/manual/"
(format #t "building HTML manual for language '~a'...~%"
(mkdir-p (string-append #$output "/"
(normalize language)))
(setenv "LANGUAGE" language)
(apply invoke #$(file-append texinfo "/bin/makeinfo")
"-o" (string-append #$output "/"
(normalize language)
(apply invoke #$(file-append texinfo "/bin/makeinfo")
(string-append #$output "/"
(normalize language)
"/" #$manual
(if (string=? language "en")
(string-append "." language))
;; Make sure images are available.
(symlink #$images
(string-append #$output "/" (normalize language)
(symlink #$images
(string-append #$output "/" (normalize language)
(filter (compose file-exists? language->texi-file-name)
(let* ((name (string-append manual "-html-manual"))
(manual (computed-file name build)))
(syntax-highlighted-html manual
#:name (string-append name "-highlighted"))))
(define* (pdf-manual source #:key (languages %languages)
(version "0.0")
(manual %manual)
(date 1)
(options '()))
"Return the HTML manuals built from SOURCE for all LANGUAGES, with the given
makeinfo OPTIONS."
(define manual-source
(texinfo-manual-source source
#:version version
#:languages languages
#:date date))
;; FIXME: This union works, except for the table of contents of non-English
;; manuals, which contains escape sequences like "^^ca^^fe" instead of
;; accented letters.
;; (define texlive
;; (texlive-union (list texlive-tex-texinfo
;; texlive-generic-epsf
;; texlive-fonts-ec)))
(define build
(with-imported-modules '((guix build utils))
(use-modules (guix build utils)
(srfi srfi-34)
(ice-9 match))
(define (normalize language) ;XXX: deduplicate
;; Normalize LANGUAGE. For instance, "zh_CN" becomes "zh-cn".
(string-map (match-lambda
(#\_ #\-)
(chr chr))
(string-downcase language)))
;; Install a UTF-8 locale so that 'makeinfo' is at ease.
(setenv "GUIX_LOCPATH"
#+(file-append glibc-utf8-locales "/lib/locale"))
(setenv "LC_ALL" "en_US.utf8")
(setenv "PATH"
(string-append #+(file-append texlive "/bin") ":"
#+(file-append texinfo "/bin") ":"
;; Below are command-line tools needed by
;; 'texi2dvi' and friends.
#+(file-append sed "/bin") ":"
#+(file-append grep "/bin") ":"
#+(file-append coreutils "/bin") ":"
#+(file-append gawk "/bin") ":"
#+(file-append tar "/bin") ":"
#+(file-append diffutils "/bin")))
(setvbuf (current-output-port) 'line)
(setvbuf (current-error-port) 'line)
(setenv "HOME" (getcwd)) ;for kpathsea/mktextfm
;; 'SOURCE_DATE_EPOCH' is honored by pdftex.
(setenv "SOURCE_DATE_EPOCH" "1")
(for-each (lambda (language)
(let ((opts `("--pdf"
"-I" "."
,(if (string=? language "en")
(string-append #$manual-source "/"
#$manual ".texi")
(string-append #$manual-source "/"
#$manual "." language ".texi")))))
(format #t "building PDF manual for language '~a'...~%"
(mkdir-p (string-append #$output "/"
(normalize language)))
(setenv "LANGUAGE" language)
;; FIXME: Unfortunately building PDFs for non-Latin
;; alphabets doesn't work:
;; <>.
(guard (c ((invoke-error? c)
(format (current-error-port)
"~%~%Failed to produce \
PDF for language '~a'!~%~%"
(apply invoke #$(file-append texinfo "/bin/makeinfo")
"--pdf" "-o"
(string-append #$output "/"
(normalize language)
"/" #$manual
(if (string=? language "en")
(string-append "."
(computed-file (string-append manual "-pdf-manual") build))
(define (guix-manual-text-domain source languages)
"Return the PO files for LANGUAGES of the 'guix-manual' text domain taken
from SOURCE."
(define po-directory
(file-append* source "/po/doc"))
(define build
(with-imported-modules '((guix build utils))
(use-modules (guix build utils))
(mkdir-p #$output)
(for-each (lambda (language)
(define directory
(string-append #$output "/" language
(mkdir-p directory)
(invoke #+(file-append gnu-gettext "/bin/msgfmt")
"-c" "-o"
(string-append directory "/")
(string-append #$po-directory "/guix-manual."
language ".po")))
'#$(delete "en" languages)))))
(computed-file "guix-manual-po" build))
(define* (html-manual-indexes source
#:key (languages %languages)
(version "0.0")
(manual %manual)
(title (if (string=? "guix" manual)
"GNU Guix Reference Manual"
"GNU Guix Cookbook"))
(date 1))
(define build
(with-extensions (list guile-json-3)
(with-imported-modules '((guix build utils))
(use-modules (guix build utils)
(ice-9 match)
(ice-9 popen)
(sxml simple)
(srfi srfi-1)
(srfi srfi-19))
(define (normalize language) ;XXX: deduplicate
;; Normalize LANGUAGE. For instance, "zh_CN" becomes "zh-cn".
(string-map (match-lambda
(#\_ #\-)
(chr chr))
(string-downcase language)))
(define-syntax-rule (with-language language exp ...)
(let ((lang (getenv "LANGUAGE")))
(lambda ()
(setenv "LANGUAGE" language)
(setlocale LC_MESSAGES))
(lambda () exp ...)
(lambda ()
(if lang
(setenv "LANGUAGE" lang)
(unsetenv "LANGUAGE"))
(setlocale LC_MESSAGES)))))
;; (put 'with-language 'scheme-indent-function 1)
(define* (translate str language
#:key (domain "guix-manual"))
(define exp
(bindtextdomain "guix-manual"
(bindtextdomain "iso_639-3" ;language names
#+(file-append iso-codes
(write (gettext ,str ,domain))))
(with-language language
;; Since the 'gettext' function caches msgid translations,
;; regardless of $LANGUAGE, we have to spawn a new process each
;; time we want to translate to a different language. Bah!
(let* ((pipe (open-pipe* OPEN_READ
#+(file-append guile-2.2
"-c" (object->string exp)))
(str (read pipe)))
(close-pipe pipe)
(define (seconds->string seconds language)
(let* ((time (make-time time-utc 0 seconds))
(date (time-utc->date time)))
(with-language language (date->string date "~e ~B ~Y"))))
(define (guix-url path)
(string-append #$%web-site-url path))
(define (sxml-index language title body)
;; FIXME: Avoid duplicating styling info from guix-artwork.git.
`(html (@ (lang ,language))
(title ,(string-append title " — GNU Guix"))
(meta (@ (charset "UTF-8")))
(meta (@ (name "viewport") (content "width=device-width, initial-scale=1.0")))
;; Menu prefetch.
(link (@ (rel "prefetch") (href ,(guix-url "menu/index.html"))))
;; Base CSS.
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/elements.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/common.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/messages.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/navbar.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/breadcrumbs.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/buttons.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/footer.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/page.css"))))
(link (@ (rel "stylesheet") (href ,(guix-url "static/base/css/post.css")))))
(header (@ (class "navbar"))
(h1 (a (@ (class "branding")
(href #$%web-site-url)))
(span (@ (class "a11y-offset"))
(nav (@ (class "menu"))))
(nav (@ (class "breadcrumbs"))
(a (@ (class "crumb")
(href #$%web-site-url))
(define (language-index language)
(define title
(translate #$title language))
language title
(@ (class "page centered-block limit-width"))
(h2 ,title)
(p (@ (class "post-metadata centered-text"))
#$version " — "
,(seconds->string #$date language))
(li (a (@ (href "html_node"))
"HTML, with one page per node"))
(li (a (@ (href
(if (string=? language
(string-append "."
"HTML, entirely on one page"))
,@(if (member language '("ru" "zh_CN"))
`((li (a (@ (href ,(string-append
(if (string=? language "en")
(string-append "."
(define %iso639-languages
(assoc-ref (call-with-input-file
#+(file-append iso-codes
(define (language-code->name code)
"Return the full name of a language from its ISO-639-3 code."
(let ((code (match (string-index code #\_)
(#f code)
(index (string-take code index)))))
(any (lambda (language)
(and (string=? (or (assoc-ref language "alpha_2")
(assoc-ref language "alpha_3"))
(assoc-ref language "name")))
(define (top-level-index languages)
(define title #$title)
"en" title
(@ (class "page centered-block limit-width"))
(h2 ,title)
"This document is available in the following
,@(map (lambda (language)
`(li (a (@ (href ,(normalize language)))
(language-code->name language)
#:domain "iso_639-3"))))
(define (write-html file sxml)
(call-with-output-file file
(lambda (port)
(display "<!DOCTYPE html>\n" port)
(sxml->xml sxml port))))
(setenv "GUIX_LOCPATH"
#+(file-append glibc-utf8-locales "/lib/locale"))
(setenv "LC_ALL" "en_US.utf8")
(setlocale LC_ALL "en_US.utf8")
(for-each (lambda (language)
(define directory
(string-append #$output "/"
(normalize language)))
(mkdir-p directory)
(write-html (string-append directory "/index.html")
(language-index language)))
(write-html (string-append #$output "/index.html")
(top-level-index '#$languages))))))
(computed-file "html-indexes" build))
(define* (pdf+html-manual source
#:key (languages %languages)
(version "0.0")
(date (time-second (current-time time-utc)))
(manual %manual))
"Return the union of the HTML and PDF manuals, as well as the indexes."
(directory-union (string-append manual "-manual")
(map (lambda (proc)
(proc source
#:date date
#:languages languages
#:version version
#:manual manual))
(list html-manual-indexes
html-manual pdf-manual))
#:copy? #t))
(define (latest-commit+date directory)
"Return two values: the last commit ID (a hex string) for DIRECTORY, and its
commit date (an integer)."
(let* ((repository (repository-open directory))
(head (repository-head repository))
(oid (reference-target head))
(commit (commit-lookup repository oid)))
;; TODO: Use (git describe) when it's widely available.
(values (oid->string oid) (commit-time commit))))
(let* ((root (canonicalize-path
(string-append (current-source-directory) "/..")))
(commit date (latest-commit+date root)))
(format (current-error-port)
"building manual from work tree around commit ~a, ~a~%"
(let* ((time (make-time time-utc 0 date))
(date (time-utc->date time)))
(date->string date "~e ~B ~Y")))
(pdf+html-manual (local-file root "guix" #:recursive? #t
#:select? (git-predicate root))
#:version (or (getenv "GUIX_MANUAL_VERSION")
(string-take commit 7))
#:date date))