@@ -26,7 +26,7 @@ if [[ -r $TOP_DIR/.stackenv ]]; then

 fi

 # Determine what system we are running on.  This provides ``os_VENDOR``,

-# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``

+# ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``

 # and ``DISTRO``

 GetDistro

@@ -292,112 +292,71 @@ function warn {

 # ================

 # Determine OS Vendor, Release and Update

-# Tested with OS/X, Ubuntu, RedHat, CentOS, Fedora

-# Returns results in global variables:

+

+#

+# NOTE : For portability, you almost certainly do not want to use

+# these variables directly!  The "is_*" functions defined below this

+# bundle up compatible platforms under larger umbrellas that we have

+# determinted are compatible enough (e.g. is_ubuntu covers Ubuntu &

+# Debian, is_fedora covers RPM-based distros).  Higher-level functions

+# such as "install_package" further abstract things in better ways.

+#

 # ``os_VENDOR`` - vendor name: ``Ubuntu``, ``Fedora``, etc

 # ``os_RELEASE`` - major release: ``14.04`` (Ubuntu), ``20`` (Fedora)

-# ``os_UPDATE`` - update: ex. the ``5`` in ``RHEL6.5``

 # ``os_PACKAGE`` - package type: ``deb`` or ``rpm``

-# ``os_CODENAME`` - vendor's codename for release: ``snow leopard``, ``trusty``

-os_VENDOR=""

-os_RELEASE=""

-os_UPDATE=""

-os_PACKAGE=""

-os_CODENAME=""

+# ``os_CODENAME`` - vendor's codename for release: ``trusty``

+

+declare os_VENDOR os_RELEASE os_PACKAGE os_CODENAME

+

+# Make a *best effort* attempt to install lsb_release packages for the

+# user if not available.  Note can't use generic install_package*

+# because they depend on this!

+function _ensure_lsb_release {

+    if [[ -x $(which lsb_release 2>/dev/null) ]]; then

+        return

+    fi

+

+    if [[ -x $(which apt-get 2>/dev/null) ]]; then

+        sudo apt-get install -y lsb-release

+    elif [[ -x $(which zypper 2>/dev/null) ]]; then

+        # XXX: old code paths seem to have assumed SUSE platforms also

+        # had "yum".  Keep this ordered above yum so we don't try to

+        # install the rh package.  suse calls it just "lsb"

+        sudo zypper -y install lsb

+    elif [[ -x $(which dnf 2>/dev/null) ]]; then

+        sudo dnf install -y redhat-lsb-core

+    elif [[ -x $(which yum 2>/dev/null) ]]; then

+        # all rh patforms (fedora, centos, rhel) have this pkg

+        sudo yum install -y redhat-lsb-core

+    else

+        die $LINENO "Unable to find or auto-install lsb_release"

+    fi

+}

 # GetOSVersion

+#  Set the following variables:

+#  - os_RELEASE

+#  - os_CODENAME

+#  - os_VENDOR

+#  - os_PACKAGE

 function GetOSVersion {

+    # We only support distros that provide a sane lsb_release

+    _ensure_lsb_release

-    # Figure out which vendor we are

-    if [[ -x "`which sw_vers 2>/dev/null`" ]]; then

-        # OS/X

-        os_VENDOR=`sw_vers -productName`

-        os_RELEASE=`sw_vers -productVersion`

-        os_UPDATE=${os_RELEASE##*.}

-        os_RELEASE=${os_RELEASE%.*}

-        os_PACKAGE=""

-        if [[ "$os_RELEASE" =~ "10.7" ]]; then

-            os_CODENAME="lion"

-        elif [[ "$os_RELEASE" =~ "10.6" ]]; then

-            os_CODENAME="snow leopard"

-        elif [[ "$os_RELEASE" =~ "10.5" ]]; then

-            os_CODENAME="leopard"

-        elif [[ "$os_RELEASE" =~ "10.4" ]]; then

-            os_CODENAME="tiger"

-        elif [[ "$os_RELEASE" =~ "10.3" ]]; then

-            os_CODENAME="panther"

-        else

-            os_CODENAME=""

-        fi

-    elif [[ -x $(which lsb_release 2>/dev/null) ]]; then

-        os_VENDOR=$(lsb_release -i -s)

-        os_RELEASE=$(lsb_release -r -s)

-        os_UPDATE=""

-        os_PACKAGE="rpm"

-        if [[ "Debian,Ubuntu,LinuxMint" =~ $os_VENDOR ]]; then

-            os_PACKAGE="deb"

-        elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then

-            lsb_release -d -s | grep -q openSUSE

-            if [[ $? -eq 0 ]]; then

-                os_VENDOR="openSUSE"

-            fi

-        elif [[ $os_VENDOR == "openSUSE project" ]]; then

-            os_VENDOR="openSUSE"

-        elif [[ $os_VENDOR =~ Red.*Hat ]]; then

-            os_VENDOR="Red Hat"

-        fi

-        os_CODENAME=$(lsb_release -c -s)

-    elif [[ -r /etc/redhat-release ]]; then

-        # Red Hat Enterprise Linux Server release 5.5 (Tikanga)

-        # Red Hat Enterprise Linux Server release 7.0 Beta (Maipo)

-        # CentOS release 5.5 (Final)

-        # CentOS Linux release 6.0 (Final)

-        # Fedora release 16 (Verne)

-        # XenServer release 6.2.0-70446c (xenenterprise)

-        # Oracle Linux release 7

-        # CloudLinux release 7.1

-        os_CODENAME=""

-        for r in "Red Hat" CentOS Fedora XenServer CloudLinux; do

-            os_VENDOR=$r

-            if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then

-                ver=`sed -e 's/^.* \([0-9].*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`

-                os_CODENAME=${ver#*|}

-                os_RELEASE=${ver%|*}

-                os_UPDATE=${os_RELEASE##*.}

-                os_RELEASE=${os_RELEASE%.*}

-                break

-            fi

-            os_VENDOR=""

-        done

-        if [ "$os_VENDOR" = "Red Hat" ] && [[ -r /etc/oracle-release ]]; then

-            os_VENDOR=OracleLinux

-        fi

-        os_PACKAGE="rpm"

-    elif [[ -r /etc/SuSE-release ]]; then

-        for r in openSUSE "SUSE Linux"; do

-            if [[ "$r" = "SUSE Linux" ]]; then

-                os_VENDOR="SUSE LINUX"

-            else

-                os_VENDOR=$r

-            fi

+    os_RELEASE=$(lsb_release -r -s)

+    os_CODENAME=$(lsb_release -c -s)

+    os_VENDOR=$(lsb_release -i -s)

-            if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then

-                os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`

-                os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`

-                os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`

-                break

-            fi

-            os_VENDOR=""

-        done

-        os_PACKAGE="rpm"

-    # If lsb_release is not installed, we should be able to detect Debian OS

-    elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then

-        os_VENDOR="Debian"

+    if [[ $os_VENDOR =~ (Debian|Ubuntu|LinuxMint) ]]; then

         os_PACKAGE="deb"

-        os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')

-        os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')

+    else

+        os_PACKAGE="rpm"

     fi

-    export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME

+

+    typeset -xr os_VENDOR

+    typeset -xr os_RELEASE

+    typeset -xr os_PACKAGE

+    typeset -xr os_CODENAME

 }

 # Translate the OS version values into common nomenclature

@@ -407,7 +366,8 @@ declare DISTRO

 function GetDistro {

     GetOSVersion

     if [[ "$os_VENDOR" =~ (Ubuntu) || "$os_VENDOR" =~ (Debian) ]]; then

-        # 'Everyone' refers to Ubuntu / Debian releases by the code name adjective

+        # 'Everyone' refers to Ubuntu / Debian releases by

+        # the code name adjective

         DISTRO=$os_CODENAME

     elif [[ "$os_VENDOR" =~ (Fedora) ]]; then

         # For Fedora, just use 'f' and the release

@@ -415,26 +375,22 @@ function GetDistro {

     elif [[ "$os_VENDOR" =~ (openSUSE) ]]; then

         DISTRO="opensuse-$os_RELEASE"

     elif [[ "$os_VENDOR" =~ (SUSE LINUX) ]]; then

-        # For SLE, also use the service pack

-        if [[ -z "$os_UPDATE" ]]; then

-            DISTRO="sle${os_RELEASE}"

-        else

-            DISTRO="sle${os_RELEASE}sp${os_UPDATE}"

-        fi

-    elif [[ "$os_VENDOR" =~ (Red Hat) || \

+        # just use major release

+        DISTRO="sle${os_RELEASE%.*}"

+    elif [[ "$os_VENDOR" =~ (Red.*Hat) || \

         "$os_VENDOR" =~ (CentOS) || \

         "$os_VENDOR" =~ (OracleLinux) ]]; then

         # Drop the . release as we assume it's compatible

+        # XXX re-evaluate when we get RHEL10

         DISTRO="rhel${os_RELEASE::1}"

     elif [[ "$os_VENDOR" =~ (XenServer) ]]; then

-        DISTRO="xs$os_RELEASE"

+        DISTRO="xs${os_RELEASE%.*}"

     elif [[ "$os_VENDOR" =~ (kvmibm) ]]; then

         DISTRO="${os_VENDOR}${os_RELEASE::1}"

     else

-        # Catch-all for now is Vendor + Release + Update

-        DISTRO="$os_VENDOR-$os_RELEASE.$os_UPDATE"

+        die $LINENO "Unable to determine DISTRO"

     fi

-    export DISTRO

+    typeset -xr DISTRO

 }

 # Utility function for checking machine architecture

@@ -138,7 +138,7 @@ source $TOP_DIR/inc/meta-config

 source $TOP_DIR/lib/stack

 # Determine what system we are running on.  This provides ``os_VENDOR``,

-# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``

+# ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``

 # and ``DISTRO``

 GetDistro

@@ -24,7 +24,7 @@ TOP_DIR=$(cd $(dirname "$0")/.. && pwd)

 source $TOP_DIR/functions

 # Determine what system we are running on.  This provides ``os_VENDOR``,

-# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``

+# ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``

 # and ``DISTRO``

 GetDistro

@@ -52,10 +52,6 @@ GetDistro

 echo "os|distro=$DISTRO"

 echo "os|vendor=$os_VENDOR"

 echo "os|release=$os_RELEASE"

-if [ -n "$os_UPDATE" ]; then

-    echo "os|version=$os_UPDATE"

-fi

-

 # Repos

 # -----

@@ -28,7 +28,7 @@ if [[ -z "$TOP_DIR" ]]; then

     source $TOP_DIR/functions

     # Determine what system we are running on.  This provides ``os_VENDOR``,

-    # ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``

+    # ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``

     # and ``DISTRO``

     GetDistro

@@ -84,7 +84,7 @@ fi

 load_plugin_settings

 # Determine what system we are running on.  This provides ``os_VENDOR``,

-# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``

+# ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``

 GetOSVersion

 set -o xtrace