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-rw-r--r--guix/build/syscalls.scm123
-rw-r--r--guix/build/texlive-build-system.scm89
2 files changed, 212 insertions, 0 deletions
diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index 2def2a108f..9c082b4352 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -28,6 +28,7 @@
#:use-module (srfi srfi-9 gnu)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-19)
+ #:use-module (srfi srfi-26)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 regex)
#:use-module (ice-9 match)
@@ -68,6 +69,7 @@
mkdtemp!
fdatasync
pivot-root
+ scandir*
fcntl-flock
set-thread-name
@@ -819,6 +821,127 @@ system to PUT-OLD."
;;;
+;;; Opendir & co.
+;;;
+
+(define-c-struct %struct-dirent-header
+ sizeof-dirent-header
+ (lambda (inode offset length type name)
+ ;; Convert TYPE to symbols like 'stat:type' does.
+ (let ((type (cond ((= type DT_REG) 'regular)
+ ((= type DT_LNK) 'symlink)
+ ((= type DT_DIR) 'directory)
+ ((= type DT_FIFO) 'fifo)
+ ((= type DT_CHR) 'char-special)
+ ((= type DT_BLK) 'block-special)
+ ((= type DT_SOCK) 'socket)
+ (else 'unknown))))
+ `((type . ,type)
+ (inode . ,inode))))
+ read-dirent-header
+ write-dirent-header!
+ (inode int64)
+ (offset int64)
+ (length unsigned-short)
+ (type uint8)
+ (name uint8)) ;first byte of 'd_name'
+
+;; Constants for the 'type' field, from <dirent.h>.
+(define DT_UNKNOWN 0)
+(define DT_FIFO 1)
+(define DT_CHR 2)
+(define DT_DIR 4)
+(define DT_BLK 6)
+(define DT_REG 8)
+(define DT_LNK 10)
+(define DT_SOCK 12)
+(define DT_WHT 14)
+
+(define string->pointer/utf-8
+ (cut string->pointer <> "UTF-8"))
+
+(define pointer->string/utf-8
+ (cut pointer->string <> <> "UTF-8"))
+
+(define opendir*
+ (let ((proc (syscall->procedure '* "opendir" '(*))))
+ (lambda* (name #:optional (string->pointer string->pointer/utf-8))
+ (let-values (((ptr err)
+ (proc (string->pointer name))))
+ (if (null-pointer? ptr)
+ (throw 'system-error "opendir*"
+ "~A: ~A" (list name (strerror err))
+ (list err))
+ ptr)))))
+
+(define closedir*
+ (let ((proc (syscall->procedure int "closedir" '(*))))
+ (lambda (directory)
+ (let-values (((ret err)
+ (proc directory)))
+ (unless (zero? ret)
+ (throw 'system-error "closedir"
+ "closedir: ~A" (list (strerror err))
+ (list err)))))))
+
+(define readdir*
+ (let ((proc (syscall->procedure '* "readdir64" '(*))))
+ (lambda* (directory #:optional (pointer->string pointer->string/utf-8))
+ (let ((ptr (proc directory)))
+ (and (not (null-pointer? ptr))
+ (cons (pointer->string
+ (make-pointer (+ (pointer-address ptr)
+ (c-struct-field-offset
+ %struct-dirent-header name)))
+ -1)
+ (read-dirent-header
+ (pointer->bytevector ptr sizeof-dirent-header))))))))
+
+(define* (scandir* name #:optional
+ (select? (const #t))
+ (entry<? (lambda (entry1 entry2)
+ (match entry1
+ ((name1 . _)
+ (match entry2
+ ((name2 . _)
+ (string<? name1 name2)))))))
+ #:key
+ (string->pointer string->pointer/utf-8)
+ (pointer->string pointer->string/utf-8))
+ "This procedure improves on Guile's 'scandir' procedure in several ways:
+
+ 1. Systematically encode decode file names using STRING->POINTER and
+ POINTER->STRING (UTF-8 by default; this works around a defect in Guile 2.0/2.2
+ where 'scandir' decodes file names according to the current locale, which is
+ not always desirable.
+
+ 2. Each entry that is returned has the form (NAME . PROPERTIES).
+ PROPERTIES is an alist showing additional properties about the entry, as
+ found in 'struct dirent'. An entry may look like this:
+
+ (\"foo.scm\" (type . regular) (inode . 123456))
+
+ Callers must be prepared to deal with the case where 'type' is 'unknown'
+ since some file systems do not provide that information.
+
+ 3. Raise to 'system-error' when NAME cannot be opened."
+ (let ((directory (opendir* name string->pointer)))
+ (dynamic-wind
+ (const #t)
+ (lambda ()
+ (let loop ((result '()))
+ (match (readdir* directory pointer->string)
+ (#f
+ (sort result entry<?))
+ (entry
+ (loop (if (select? entry)
+ (cons entry result)
+ result))))))
+ (lambda ()
+ (closedir* directory)))))
+
+
+;;;
;;; Advisory file locking.
;;;
diff --git a/guix/build/texlive-build-system.scm b/guix/build/texlive-build-system.scm
new file mode 100644
index 0000000000..c1fd9fd9af
--- /dev/null
+++ b/guix/build/texlive-build-system.scm
@@ -0,0 +1,89 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
+;;;
+;;; 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 build texlive-build-system)
+ #:use-module ((guix build gnu-build-system) #:prefix gnu:)
+ #:use-module (guix build utils)
+ #:use-module (ice-9 match)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
+ #:export (%standard-phases
+ texlive-build))
+
+;; Commentary:
+;;
+;; Builder-side code of the standard build procedure for TeX Live packages.
+;;
+;; Code:
+
+(define (compile-with-latex format file)
+ (zero? (system* format
+ "-interaction=batchmode"
+ "-output-directory=build"
+ (string-append "&" format)
+ file)))
+
+(define* (build #:key inputs build-targets tex-format #:allow-other-keys)
+ ;; Find additional tex and sty files
+ (setenv "TEXINPUTS"
+ (string-append
+ (getcwd) ":" (getcwd) "/build:"
+ (string-join
+ (append-map (match-lambda
+ ((_ . dir)
+ (find-files dir
+ (lambda (_ stat)
+ (eq? 'directory (stat:type stat)))
+ #:directories? #t
+ #:stat stat)))
+ inputs)
+ ":")))
+ (setenv "TEXFORMATS"
+ (string-append (assoc-ref inputs "texlive-latex-base")
+ "/share/texmf-dist/web2c/"))
+ (setenv "LUAINPUTS"
+ (string-append (assoc-ref inputs "texlive-latex-base")
+ "/share/texmf-dist/tex/latex/base/"))
+ (mkdir "build")
+ (every (cut compile-with-latex tex-format <>)
+ (if build-targets build-targets
+ (find-files "." "\\.ins$"))))
+
+(define* (install #:key outputs tex-directory #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out"))
+ (target (string-append
+ out "/share/texmf-dist/tex/" tex-directory)))
+ (mkdir-p target)
+ (for-each delete-file (find-files "." "\\.(log|aux)$"))
+ (for-each (cut install-file <> target)
+ (find-files "build" ".*"))
+ #t))
+
+(define %standard-phases
+ (modify-phases gnu:%standard-phases
+ (delete 'configure)
+ (replace 'build build)
+ (delete 'check)
+ (replace 'install install)))
+
+(define* (texlive-build #:key inputs (phases %standard-phases)
+ #:allow-other-keys #:rest args)
+ "Build the given TeX Live package, applying all of PHASES in order."
+ (apply gnu:gnu-build #:inputs inputs #:phases phases args))
+
+;;; texlive-build-system.scm ends here