;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 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 (gnu packages bioinformatics)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system trivial)
  #:use-module (gnu packages)
  #:use-module (gnu packages base)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python))
  #:use-module (gnu packages tbb)

(define-public bedtools
  (package
    (name "bedtools")
    (version "2.22.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/arq5x/bedtools2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "16aq0w3dmbd0853j32xk9jin4vb6v6fgakfyvrsmsjizzbn3fpfl"))))
    (build-system gnu-build-system)
    (native-inputs `(("python" ,python-2)))
    (inputs `(("samtools" ,samtools)
              ("zlib" ,zlib)))
    (arguments
     '(#:test-target "test"
       #:phases
       (alist-cons-after
        'unpack 'patch-makefile-SHELL-definition
        (lambda _
          ;; patch-makefile-SHELL cannot be used here as it does not
          ;; yet patch definitions with `:='.  Since changes to
          ;; patch-makefile-SHELL result in a full rebuild, features
          ;; of patch-makefile-SHELL are reimplemented here.
          (substitute* "Makefile"
            (("^SHELL := .*$") (string-append "SHELL := " (which "bash") " -e \n"))))
        (alist-delete
         'configure
         (alist-replace
          'install
          (lambda* (#:key outputs #:allow-other-keys)
            (let ((bin (string-append (assoc-ref outputs "out") "/bin/")))
              (mkdir-p bin)
              (for-each (lambda (file)
                          (copy-file file (string-append bin (basename file))))
                        (find-files "bin" ".*"))))
          %standard-phases)))))
    (home-page "https://github.com/arq5x/bedtools2")
    (synopsis "Tools for genome analysis and arithmetic")
    (description
     "Collectively, the bedtools utilities are a swiss-army knife of tools for
a wide-range of genomics analysis tasks.  The most widely-used tools enable
genome arithmetic: that is, set theory on the genome.  For example, bedtools
allows one to intersect, merge, count, complement, and shuffle genomic
intervals from multiple files in widely-used genomic file formats such as BAM,
BED, GFF/GTF, VCF.")
    (license license:gpl2)))

(define-public bowtie
  (package
    (name "bowtie")
    (version "2.2.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/BenLangmead/bowtie2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "15dnbqippwvhyh9zqjhaxkabk7lm1xbh1nvar1x4b5kwm117zijn"))
              (modules '((guix build utils)))
              (snippet
               '(substitute* "Makefile"
                  (("^CC = .*$") "CC = gcc")
                  (("^CPP = .*$") "CPP = g++")
                  ;; replace BUILD_HOST and BUILD_TIME for deterministic build
                  (("-DBUILD_HOST=.*") "-DBUILD_HOST=\"\\\"guix\\\"\"")
                  (("-DBUILD_TIME=.*") "-DBUILD_TIME=\"\\\"0\\\"\"")))
              (patches (list (search-patch "bowtie-fix-makefile.patch")))))
    (build-system gnu-build-system)
    (inputs `(("perl" ,perl)
              ("perl-clone" ,perl-clone)
              ("perl-test-deep" ,perl-test-deep)
              ("perl-test-simple" ,perl-test-simple)
              ("python" ,python-2)))
    (arguments
     '(#:make-flags '("allall")
       #:phases
       (alist-delete
        'configure
        (alist-replace
         'install
         (lambda* (#:key outputs #:allow-other-keys)
           (let ((bin (string-append (assoc-ref outputs "out") "/bin/")))
             (mkdir-p bin)
             (for-each (lambda (file)
                         (copy-file file (string-append bin file)))
                       (find-files "." "bowtie2.*"))))
         (alist-replace
          'check
          (lambda* (#:key outputs #:allow-other-keys)
            (system* "perl"
                     "scripts/test/simple_tests.pl"
                     "--bowtie2=./bowtie2"
                     "--bowtie2-build=./bowtie2-build"))
          %standard-phases)))))
    (home-page "http://bowtie-bio.sourceforge.net/bowtie2/index.shtml")
    (synopsis "Fast and sensitive nucleotide sequence read aligner")
    (description
     "Bowtie 2 is a fast and memory-efficient tool for aligning sequencing
reads to long reference sequences.  It is particularly good at aligning reads
of about 50 up to 100s or 1,000s of characters, and particularly good at
aligning to relatively long (e.g. mammalian) genomes.  Bowtie 2 indexes the
genome with an FM Index to keep its memory footprint small: for the human
genome, its memory footprint is typically around 3.2 GB.  Bowtie 2 supports
gapped, local, and paired-end alignment modes.")
    (supported-systems '("x86_64-linux"))
    (license license:gpl3+)))

(define-public flexbar
  (package
    (name "flexbar")
    (version "2.5")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/flexbar/"
                              version "/flexbar_v" version "_src.tgz"))
              (sha256
               (base32
                "13jaykc3y1x8y5nn9j8ljnb79s5y51kyxz46hdmvvjj6qhyympmf"))))
    (build-system cmake-build-system)
    (arguments
     `(;; There is no test target, although there is a directory containing
       ;; test data and scripts (launched by flexbar_validate.sh).
       #:tests? #f
       #:configure-flags (list
                          (string-append "-DFLEXBAR_BINARY_DIR="
                                         (assoc-ref %outputs "out")
                                         "/bin/"))
       #:phases
       (alist-delete 'install %standard-phases)))
    (inputs
     `(("tbb" ,tbb)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("seqan" ,seqan)))
    (home-page "http://flexbar.sourceforge.net")
    (synopsis "Barcode and adapter removal tool for sequencing platforms")
    (description
     "Flexbar preprocesses high-throughput nucleotide sequencing data
efficiently.  It demultiplexes barcoded runs and removes adapter sequences.
Moreover, trimming and filtering features are provided.  Flexbar increases
read mapping rates and improves genome and transcriptome assemblies.  It
supports next-generation sequencing data in fasta/q and csfasta/q format from
Illumina, Roche 454, and the SOLiD platform.")
    (license license:gpl3)))

(define-public samtools
  (package
    (name "samtools")
    (version "1.1")
    (source
     (origin
       (method url-fetch)
       (uri
        (string-append "mirror://sourceforge/samtools/"
                       version "/samtools-" version ".tar.bz2"))
       (sha256
        (base32
         "1y5p2hs4gif891b4ik20275a8xf3qrr1zh9wpysp4g8m0g1jckf2"))))
    (build-system gnu-build-system)
    (arguments
     `(;; There are 87 test failures when building on non-64-bit architectures
       ;; due to invalid test data.  This has since been fixed upstream (see
       ;; <https://github.com/samtools/samtools/pull/307>), but as there has
       ;; not been a new release we disable the tests for all non-64-bit
       ;; systems.
       #:tests? ,(string=? (or (%current-system) (%current-target-system))
                           "x86_64-linux")
       #:make-flags (list (string-append "prefix=" (assoc-ref %outputs "out")))
       #:phases
       (alist-cons-after
        'unpack
        'patch-makefile-curses
        (lambda _
          (substitute* "Makefile"
            (("-lcurses") "-lncurses")))
        (alist-cons-after
         'unpack
         'patch-tests
         (lambda* (#:key inputs #:allow-other-keys)
           (let ((bash (assoc-ref inputs "bash")))
             (substitute* "test/test.pl"
               ;; The test script calls out to /bin/bash
               (("/bin/bash")
                (string-append bash "/bin/bash"))
               ;; There are two failing tests upstream relating to the "stats"
               ;; subcommand in test_usage_subcommand ("did not have Usage"
               ;; and "usage did not mention samtools stats"), so we disable
               ;; them.
               (("(test_usage_subcommand\\(.*\\);)" cmd)
                (string-append "unless ($subcommand eq 'stats') {" cmd "};")))))
         (alist-delete
          'configure
          %standard-phases)))))
    (native-inputs `(("pkg-config" ,pkg-config)))
    (inputs `(("ncurses" ,ncurses)
              ("perl" ,perl)
              ("python" ,python)
              ("zlib" ,zlib)))
    (home-page "http://samtools.sourceforge.net")
    (synopsis "Utilities to efficiently manipulate nucleotide sequence alignments")
    (description
     "Samtools implements various utilities for post-processing nucleotide
sequence alignments in the SAM, BAM, and CRAM formats, including indexing,
variant calling (in conjunction with bcftools), and a simple alignment
viewer.")
    (license license:expat)))

(define-public seqan
  (package
    (name "seqan")
    (version "1.4.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://packages.seqan.de/seqan-library/"
                                  "seqan-library-" version ".tar.bz2"))
              (sha256
               (base32
                "05s3wrrwn50f81aklfm65i4a749zag1vr8z03k21xm0pdxy47yvp"))))
    ;; The documentation is 7.8MB and the includes are 3.6MB heavy, so it
    ;; makes sense to split the outputs.
    (outputs '("out" "doc"))
    (build-system trivial-build-system)
    (arguments
     `(#:modules ((guix build utils))
       #:builder
       (begin
         (use-modules (guix build utils))
         (let ((tar  (assoc-ref %build-inputs "tar"))
               (bzip (assoc-ref %build-inputs "bzip2"))
               (out  (assoc-ref %outputs "out"))
               (doc  (assoc-ref %outputs "doc")))
           (setenv "PATH" (string-append tar "/bin:" bzip "/bin"))
           (system* "tar" "xvf" (assoc-ref %build-inputs "source"))
           (chdir (string-append "seqan-library-" ,version))
           (copy-recursively "include" (string-append out "/include"))
           (copy-recursively "share"  (string-append doc "/share"))))))
    (native-inputs
     `(("source" ,source)
       ("tar" ,tar)
       ("bzip2" ,bzip2)))
    (home-page "http://www.seqan.de")
    (synopsis "Library for nucleotide sequence analysis")
    (description
     "SeqAn is a C++ library of efficient algorithms and data structures for
the analysis of sequences with the focus on biological data.  It contains
algorithms and data structures for string representation and their
manipulation, online and indexed string search, efficient I/O of
bioinformatics file formats, sequence alignment, and more.")
    (license license:bsd-3)))