+ initial files

scripts/99_software.sh

@@ -0,0 +1,142 @@
+#!/usr/bin/env bash
+
+# klevstul
+
+# https://wiki.archlinux.org/title/pacman
+
+echo "<< 99_software.sh >>"
+
+if [ "$EUID" -ne 0 ]
+  then echo "error: run as 'root'"
+  exit
+fi
+
+this_file_name=`basename "$0"`
+if [ $# -lt 1 ]; then
+    echo "error: $# arguments given"
+    echo "usage: '$this_file_name [operation] [argument?]'"
+    exit 1
+fi
+
+operation=$1
+parameter=$2
+
+param_check() {
+    parameter=$1
+    error_msg=$2
+
+    if [ -z "${parameter}" ] ; then
+        echo "error: ${error_msg}" ; exit 1
+    fi
+}
+
+# -----
+# always update the system
+# -----
+sudo pacman -Syu
+
+echo "-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-"
+
+
+# -----
+# setup all packages for given host
+# -----
+if [ ${operation} == "setup" ] ; then
+
+    param_check "${parameter}" "no host name given"
+
+    package_list_url=https://git.mz.fo/fro/lnx-arch/raw/branch/master/dots/archinstall/${parameter}/packages.txt
+
+    trg_file=/tmp/packages.txt
+
+    wget -q ${package_list_url} -O ${trg_file}
+
+    if ! [ -s ${trg_file} ] ; then
+        echo "error: packages.txt is empty"
+        echo ""
+        echo "attempted to to download 'packages.txt' from:
+        echo '${package_list_url}'"
+        echo "'${parameter}' might be an invalid hostname, or 'packages.txt' might be created for given host."
+        exit 1
+    fi
+
+    # https://stackoverflow.com/questions/30988586/creating-an-array-from-a-text-file-in-bash
+    mapfile -t packages < ${trg_file}
+
+    installed=$(pacman -Qq)
+    list=()
+    for x in ${packages[@]}
+        do
+            if [[ $installed == *$x* ]]
+                then
+                    echo "Skipping (1) $x"
+            elif [[ $installed !=  *$x* ]]
+                then
+                    if [[ $(echo "$installed" | grep -E -o "^$x$") != $x ]]
+                        then
+                    echo "Adding $x to list"
+                    list+="$x "
+                    else
+                        echo "Skipping (2) $x"
+                    fi
+            fi
+    done
+
+    if [[ -n "$list" ]]
+        then
+            pacman -S --needed --noconfirm $list
+        else
+            echo "Nothing to install"
+    fi
+
+
+fi
+
+
+
+# -----
+# install package
+# -----
+if [ ${operation} == "install" ] ; then
+
+    param_check "${parameter}" "no package name given"
+
+    pacman -S ${parameter}
+
+fi
+
+# -----
+# search for package
+# -----
+if [ ${operation} == "search" ] ; then
+
+    param_check "${parameter}" "no package name given"
+
+    # search in name and description
+    pacman -Ss "^${parameter}-"
+
+fi
+
+# -----
+# remove orphaned packages (packages which are no longer needed)
+# -----
+if [ ${operation} == "orphans" ] ; then
+    echo "- - - - -"
+    echo "if no orphans to be removed were found, the following error will be displayed:"
+    echo "\"error: argument '-' specified with empty stdin\""
+    echo "- - - - -"
+    echo "removing orphans..."
+    pacman -Qtdq | pacman -Rns -
+fi
+
+# -----
+# remove orphaned packages (packages which are no longer needed)
+# -----
+if [ ${operation} == "uninstall" ] ; then
+
+    param_check "${parameter}" "no package name given"
+
+    # uninstall program and remove orphans
+    pacman -Rns ${parameter}
+
+fi