install.sh

   1 #!/bin/sh
   2 #
   3 # ConfigScripts - install.sh
   4 # Written by Alexander Barton <alex@barton.de>. Public Domain.
   5 #
   6
   7 NAME=`basename "$0"`
   8
   9 Msg() {
  10         printf -- "$*"
  11 }
  12
  13 Abort() {
  14         Msg "- ERROR!\n"
  15         exit 1
  16 }
  17
  18 Copy_File() {
  19         src="$1"; dst="$2"; own="$3"; perm="$4"
  20         Msg "     $src -> $dst"
  21         if [ -e "$dst" ]; then
  22                 grep "alex@barton.de" "$dst" >/dev/null 2>&1
  23                 if [ $? -ne 0 ]; then
  24                         Msg " (B)"
  25                         cp "$dst" "$dst.bak"
  26                 fi
  27         fi
  28         Msg " "
  29         cp "$src" "$dst" || Abort
  30         if [ -n "$own" -a "$own" != "$USER" ]; then
  31                 chown "$own" "$dst" || Abort
  32         fi
  33         if [ -n "$perm" ]; then
  34                 chmod "$perm" "$dst" || Abort
  35         fi
  36         Msg "- OK.\n"
  37 }
  38
  39 Config_System() {
  40         if [ "$UID" = "0" -a -z "$I_local" ]; then
  41                 Msg "Starting system configuration:\n"
  42                 Msg " - bash shell:\n"
  43                 if [ -e /etc/bash.bashrc ]; then
  44                         Copy_File sys/bashrc /etc/bash.bashrc root 644
  45                 else
  46                         Copy_File sys/bashrc /etc/bashrc root 644
  47                 fi
  48                 Copy_File sys/profile /etc/profile root 644
  49         else
  50                 Msg "Not running with root privileges - system configuration SKIPPED.\n"
  51                 grep "alex@barton.de" /etc/profile >/dev/null 2>&1
  52                 if [ $? -ne 0 -o -n "$I_local" ]; then
  53                         Msg "Installing system files to $HOME/.etc/ ...\n"
  54                         mkdir -p "$HOME/.etc"
  55                         Copy_File sys/bashrc $HOME/.etc/bashrc "$user" 600
  56                         Copy_File sys/profile $HOME/.etc/profile "$user" 600
  57                 else
  58                         Msg "System configuration seems to be modified: not installing locally.\n"
  59                 fi
  60         fi
  61 }
  62
  63 Config_User() {
  64         # $1: user name
  65         # $2: home directory
  66
  67         user="$1"
  68         home="$2"
  69
  70         Msg "Starting user configuration ($user in $home):\n"
  71         touch "$home/.test.$$" >/dev/null 2>&1
  72         if [ $? -eq 0 ]; then
  73                 rm -f "$home/.test.$$"
  74                 Msg " - bash shell:\n"
  75                 if [ -e "$home/.profile" ]; then
  76                         Copy_File user/bash_profile "$home/.profile" "$user" 600
  77                 else
  78                         Copy_File user/bash_profile "$home/.bash_profile" "$user" 600
  79                 fi
  80                 Copy_File user/bashrc "$home/.bashrc" "$user" 600
  81                 Copy_File user/bash_logout "$home/.bash_logout" "$user" 600
  82         else
  83                 Msg "Can't write to user home directory - user configuration SKIPPED.\n"
  84         fi
  85 }
  86
  87 Config_Skel() {
  88         if [ -w /etc/skel -a -z "$I_local" ]; then
  89                 Msg "Starting \"/etc/skel\" configuration:\n"
  90                 Copy_File user/bash_logout /etc/skel/.bash_logout
  91                 if [ -e /etc/skel/.profile ]; then
  92                         Copy_File user/bash_profile /etc/skel/.profile root 644
  93                 else
  94                         Copy_File user/bash_profile /etc/skel/.bash_profile root 644
  95                 fi
  96                 Copy_File user/bashrc /etc/skel/.bashrc root 644
  97         else
  98                 [ -z "$I_local" ] \
  99                         && Msg "Can't write to \"/etc/skel\" - configuration SKIPPED.\n" \
 100                         || Msg "Local install selected, \"/etc/skel\" configuration SKIPPED.\n"
 101         fi
 102 }
 103
 104 Config_RootUser() {
 105         if [ "$UID" = "0" ]; then
 106                 user=`grep "^.*:.*:0:" /etc/passwd | head -n 1 | cut -d':' -f1`
 107                 home=`grep "^.*:.*:0:" /etc/passwd | cut -d':' -f6`
 108                 Config_User "$user" "$home"
 109         else
 110                 Msg "Not running with root privileges - root user configuration SKIPPED.\n"
 111         fi
 112 }
 113
 114 while [ $# -gt 0 ]; do
 115         case "$1" in
 116         "--local"|"-l")
 117                 export I_local=1; ;;
 118         *)
 119                 echo "Usage: $0 [--local|-l]"
 120                 exit 1
 121         esac
 122         shift
 123 done
 124
 125 [ -n "$UID" ] || UID=`id -u`
 126 export UID
 127
 128 Msg "Running $NAME (uid=$UID) ...\n"
 129
 130 user=`basename "$HOME"`
 131
 132 Config_Skel
 133 Config_System
 134 Config_User "$user" "$HOME"
 135 Config_RootUser
 136
 137 Msg "$NAME: Done.\n"
 138
 139 # -eof-