libaio: fixed a condition that checks whether we are running on OS X (#12976)

* libaio: fixed a condition that checks whether we are running on OS X

* libaio: simplified package by adding an explicit conflict for darwin

* libaio: added information to the docstring

* fio: added version 3.16, added conflict when using libaio, docstring

* lvm2: conflict due to libaio dep, improved docstring, simpler install

* mariadb: conflict due to libaio dep, improved docstring, version 10.4.7

* mariadb: the dependency on libaio is now conditional, removed conflict

* mariadb: fixed a typo in previous commit

Co-Authored-By: Adam J. Stewart <ajstewart426@gmail.com>

* libaio: turned into a MakefilePackage

var/spack/repos/builtin/packages/fio/package.py

@@ -3,15 +3,20 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-from spack import *
-
 
 class Fio(AutotoolsPackage):
-    """Flexible I/O Tester."""
+    """Flexible I/O Tester.
+
+    Fio spawns a number of threads or processes doing a particular type of I/O
+    action as specified by the user. fio takes a number of global parameters,
+    each inherited by the thread unless otherwise parameters given to them
+    overriding that setting is given.
+    """
 
     homepage = "https://github.com/axboe/fio"
-    url      = "https://github.com/axboe/fio/archive/fio-2.19.tar.gz"
+    url = "https://github.com/axboe/fio/archive/fio-2.19.tar.gz"
 
+    version('3.16', sha256='c7731a9e831581bab7104da9ea60c9f44e594438dbe95dff26726ca0285e7b93')
     version('2.19', '67125b60210a4daa689a4626fc66c612')
 
     variant('gui', default=False, description='Enable building of gtk gfio')
@@ -24,6 +29,9 @@ class Fio(AutotoolsPackage):
 
     depends_on('py-sphinx', type='build', when='+doc')
 
+    conflicts('+libaio', when='platform=darwin',
+              msg='libaio does not support Darwin')
+
     def configure_args(self):
         config_args = []
 

var/spack/repos/builtin/packages/libaio/package.py

@@ -3,22 +3,24 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-from spack import *
 
+class Libaio(MakefilePackage):
+    """Linux native Asynchronous I/O interface library.
 
-class Libaio(Package):
-    """This is the linux native Asynchronous I/O interface library."""
+    AIO enables even a single application thread to overlap I/O operations
+    with other processing, by providing an interface for submitting one or
+    more I/O requests in one system call (io_submit()) without waiting for
+    completion, and a separate interface (io_getevents()) to reap completed
+    I/O operations associated with a given completion group.
+    """
 
     homepage = "http://lse.sourceforge.net/io/aio.html"
-    url      = "https://debian.inf.tu-dresden.de/debian/pool/main/liba/libaio/libaio_0.3.110.orig.tar.gz"
+    url = "https://debian.inf.tu-dresden.de/debian/pool/main/liba/libaio/libaio_0.3.110.orig.tar.gz"
 
     version('0.3.110', '2a35602e43778383e2f4907a4ca39ab8')
 
-    def install(self, spec, prefix):
-        # libaio is not supported on OS X
-        if spec.satisfies('arch=darwin-x86_64'):
-            # create a dummy directory
-            mkdir(prefix.lib)
-            return
+    conflicts('platform=darwin', msg="libaio is a linux specific library")
 
-        make('prefix={0}'.format(prefix), 'install')
+    @property
+    def install_targets(self):
+        return ['prefix={0}'.format(self.spec.prefix), 'install']

var/spack/repos/builtin/packages/lvm2/package.py

@@ -3,20 +3,22 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
-from spack import *
-
 
 class Lvm2(AutotoolsPackage):
     """LVM2 is the userspace toolset that provides logical volume
-    management facilities on linux.  To use it you need 3 things:
-    device-mapper in your kernel, the userspace device-mapper support
-    library (libdevmapper) and the userspace LVM2 tools (dmsetup).  These
-    userspace components, and associated header files, are provided by this
-    package.  See http://sources.redhat.com/dm/ for additional information
-    about the device-mapper kernel and userspace components."""
+    management facilities on linux.
+
+    To use it you need 3 things: device-mapper in your kernel, the userspace
+    device-mapper support library (libdevmapper) and the userspace LVM2 tools
+    (dmsetup). These userspace components, and associated header files, are
+    provided by this package.
+
+    See http://sources.redhat.com/dm/ for additional information
+    about the device-mapper kernel and userspace components.
+    """
 
     homepage = "https://www.sourceware.org/lvm2"
-    url      = "https://sourceware.org/pub/lvm2/releases/LVM2.2.03.05.tgz"
+    url = "https://sourceware.org/pub/lvm2/releases/LVM2.2.03.05.tgz"
 
     version('2.03.05', sha256='ca52815c999b20c6d25e3192f142f081b93d01f07b9d787e99664b169dba2700')
     version('2.03.04', sha256='f151f36fc0039997d2d9369b607b9262568b1a268afe19fd1535807355402142')
@@ -35,13 +37,11 @@ def url_for_version(self, version):
     depends_on('libaio')
     depends_on('pkgconfig', type='build', when='+pkgconfig')
 
+    conflicts('platform=darwin',
+              msg='lvm2 depends on libaio which does not support Darwin')
+
     def configure_args(self):
-        args = ['--with-confdir={0}'.
-                format(self.prefix.etc),
-                '--with-default-system-dir={0}'.
-                format(self.prefix.etc.lvm)]
-        if self.spec.satisfies('+pkgconfig'):
-            args.append('--enable-pkgconfig')
-        else:
-            args.append('--disable-pkgconfig')
-        return args
+        return [
+            '--with-confdir={0}'.format(self.prefix.etc),
+            '--with-default-system-dir={0}'.format(self.prefix.etc.lvm)
+        ] + self.enable_or_disable('pkgconfig')

var/spack/repos/builtin/packages/mariadb/package.py

@@ -7,15 +7,20 @@
 
 
 class Mariadb(CMakePackage):
-    """MariaDB turns data into structured information in a wide array of
+    """MariaDB Server is one of the most popular database servers
+    in the world.
+
+    MariaDB turns data into structured information in a wide array of
     applications, ranging from banking to websites. It is an enhanced, drop-in
     replacement for MySQL. MariaDB is used because it is fast, scalable and
     robust, with a rich ecosystem of storage engines, plugins and many other
-    tools make it very versatile for a wide variety of use cases."""
+    tools make it very versatile for a wide variety of use cases.
+    """
 
     homepage = "https://mariadb.org/about/"
-    url      = "http://ftp.hosteurope.de/mirror/archive.mariadb.org/mariadb-10.2.8/source/mariadb-10.2.8.tar.gz"
+    url = "http://ftp.hosteurope.de/mirror/archive.mariadb.org/mariadb-10.2.8/source/mariadb-10.2.8.tar.gz"
 
+    version('10.4.7', sha256='c8e6a6d0bb4f22c416ed675d24682a3ecfa383c5283efee70c8edf131374d817')
     version('10.2.8', 'f93cbd5bfde3c0d082994764ff7db580')
     version('10.1.23', '1a7392cc05c7c249acd4495022719ca8')
     version('5.5.56', '8bc7772fea3e11b0bc1a09d2278e2e32')
@@ -32,7 +37,7 @@ class Mariadb(CMakePackage):
     depends_on('pkgconfig', type='build')
     depends_on('bison', type='build')
     depends_on('jemalloc')
-    depends_on('libaio')
+    depends_on('libaio', when='platform=linux')
     depends_on('libedit')
     depends_on('libevent', when='+nonblocking')
     depends_on('ncurses')