(define-module (gn packages file-systems)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (gnu packages)
  #:use-module (guix packages)
  #:use-module (guix git-download)
  #:use-module (guix utils)
  #:use-module (guix build-system cmake)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages check)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages logging)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python))

(define-public lizardfs
  (package
    (name "lizardfs")
    (version "3.12.0")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/lizardfs/lizardfs")
               (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "0zk73wmx82ari3m2mv0zx04x1ggsdmwcwn7k6bkl5c0jnxffc4ax"))))
    (build-system cmake-build-system)
    (arguments
     `(#:configure-flags
       (list "-DENABLE_CLIENT_LIB=YES"
             ;"-DENABLE_TESTS=YES"
             "-DENABLE_STATIC=NO"
             "-DENABLE_VERBOSE_ASCIIDOC=YES"
             "-DENABLE_TCMALLOC=NO"
             ;; Some directories need to be changed
             "-DRUN_SUBDIR=/var/run/lizardfs"
             "-DDATA_SUBDIR=/var/lib/lizardfs"
             "-DENABLE_UTILS=YES")
       #:tests? #f  ; Tests fail to build.
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'dont-use-lib64
           (lambda _
             (substitute* "CMakeLists.txt"
               (("\"64\"") "\"\""))
             #t))
         (add-after 'unpack 'use-system-libraries
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((gtest  (assoc-ref inputs "googletest"))
                   (spdlog (assoc-ref inputs "spdlog")))
               (substitute* "cmake/Libraries.cmake"
                 (("ENABLE_TESTS") "DOWNLOAD_GTEST")
                 (("# Find GoogleTest" all)
                  (string-append "set(GTEST_NAME gtest)\n" all))
                 (("GTEST_INCLUDE_DIRS.*")
                  (string-append "GTEST_INCLUDE_DIRS " gtest "/include)\n"))
                 (("download_external\\(SPDLOG" all)
                  (string-append "if(DOWNLOAD_SPDLOG)\n" all))
                 (("\"spdlog-1\")")
                  (string-append "\"spdlog-1\")\n"
                                 "endif()\n"
                                 "find_package(spdlog CONFIG REQUIRED)"))
                 (("include_directories(external/spdlog-0.14.0/include)") ""))
               ;; Don't include gtest vendor directory
               (substitute* "external/CMakeLists.txt"
                 (("add_subdirectory.*") ""))

               ;; Compatability with spdlog1.2.0+
               ;; https://github.com/lizardfs/lizardfs/issues/774
               (substitute* "src/common/slogger.h"
                 (("spdlog/spdlog.h\"")
                  (string-append "spdlog/spdlog.h\"\n"
                                 "#include \"spdlog/sinks/rotating_file_sink.h\"\n"
                                 "#include \"spdlog/sinks/syslog_sink.h\"\n"
                                 "#include \"spdlog/sinks/stdout_color_sinks.h\"")))
               (substitute* "src/common/slogger.cc"
                 (("spdlog::syslog_logger\\(\"syslog\"\\);")
                  "spdlog::syslog_logger_mt(\"syslog\");"))

               ;; fix FTBFS with glibc-2.28; for makedev
               ;; https://github.com/lizardfs/lizardfs/issues/655
               (substitute* "src/chunkserver/iostat.h"
                 (("sys/stat.h>") "sys/stat.h>\n#include <sys/sysmacros.h>"))

               #t))))))
    (inputs
     `(("boost" ,boost)
       ("fuse" ,fuse)
       ("linux-pam" ,linux-pam)
       ("python" ,python-2)
       ("spdlog" ,spdlog)
       ("zlib" ,zlib)))
    (native-inputs
     `(("asciidoc" ,asciidoc)
       ("googletest" ,googletest-1.8)
       ("pkg-config" ,pkg-config)))
    (home-page "https://lizardfs.com/")
    (synopsis "Distributed, scalable, fault-tolerant, highly available file system")
    (description
     "LizardFS makes files secure by keeping all the data in many replicas
spread over all available servers. It can be used also to build affordable
storage because it runs without any problems on commodity hardware.  Disk and
server failures are handled transparently and most of all without any downtime
or loss of data.  If storage requirements grow, it's possible to scale an
existing LizardFS installation just by adding new servers at any time, without
any downtime.  The system will automatically move data across to the newly
added servers, as it continuously takes care of balancing disk usage across all
connected nodes.")
    (license (list license:asl2.0   ; external/crcutil
                   license:gpl3))))