Improve easter egg for 20 years of grml.org

[grml-autoconfig.git] / autoconfig.functions

diff --git a/autoconfig.functions b/autoconfig.functions
index b7aaee0..254129b 100755 (executable)
--- a/autoconfig.functions
+++ b/autoconfig.functions
@@ -184,7 +184,8 @@ KVM=false
 VIRTUALBOX=false
 VMWARE=false
 
-if vmware-detect &>/dev/null; then
+if virt-what 2>/dev/null | grep -q 'vmware' || \
+  imvirt 2>/dev/null | grep -iq "vmware" ; then
   VIRTUAL=true; VMWARE=true; VIRTUAL_ENV='VMware'
 fi
 
@@ -212,12 +213,8 @@ fi
 config_log(){
 if checkbootparam 'log' || checkbootparam 'debug' ; then
    export DEBUG="/tmp/grml.log.`date +%Y%m%d`"
-   touch $DEBUG
-   einfo "Bootparameter log found. Log files: ${DEBUG} and /var/log/boot"
-   eindent
-     einfo "Starting bootlogd." # known to be *very* unreliable :(
-     bootlogd -r -c >>$DEBUG 2>&1 ; eend $?
-   eoutdent
+   touch "${DEBUG}"
+   einfo "Bootparameter log found, debug log file from grml-autoconfig available at '${DEBUG}'"
 else
    DEBUG="/dev/null"
 fi
@@ -549,20 +546,19 @@ running_under_secureboot() {
   # doesn't work as needed as it relies on /sys/firmware/efi/efivars (while
   # /sys/firmware/efi/vars would exist)
   if ! $SYSTEMD ; then
-    if modprobe efivars &>/dev/null ; then
+    if modprobe efivarfs &>/dev/null ; then
       mount -t efivarfs efivarfs /sys/firmware/efi/efivars
     fi
   fi
 
-  if [ -x /usr/bin/mokutil ] ; then
-    local secstate=$(mokutil --sb-state 2>/dev/null) # "SecureBoot enabled"
-    if [ -n "$secstate" ] ; then
+  if [[ -x "$(command -v mokutil)" ]] ; then
+    if mokutil --sb-state 2>/dev/null | grep -q 'SecureBoot enabled' ; then
       return 0
     else
       return 1
     fi
   else
-    if modprobe efivars &>/dev/null ; then
+    if modprobe efivarfs &>/dev/null ; then
       if od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data 2>/dev/null | grep -q 1 ; then
         return 0
       else
@@ -909,19 +905,23 @@ fi # -z $INSTALLED
 
 # {{{ CPU-detection
 config_cpu(){
-if checkbootparam 'nocpu'; then
-  ewarn "Skipping CPU detection as requested on boot commandline." ; eend 0
-  return 0
-fi
+  if checkbootparam 'nocpu'; then
+    ewarn "Skipping CPU detection as requested on boot commandline." ; eend 0
+    return 0
+  fi
 
-if [[ $(grep -c processor /proc/cpuinfo) -gt 1 ]] ; then
-   einfo "Found CPU:"
-   CPU=$(awk -F: '/^processor/{printf "        Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG)
-   echo $CPU | sed 's/ \{1,\}/ /g'
-   eend 0
-else
-   einfo "Found CPU: `awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG` " ; eend 0
-fi
+  if ! [ -x "$(which lscpu)" ] ; then
+    ewarn "Skipping CPU detection due to lack of lscpu."; eend 0
+    return 0
+  fi
+
+  local cpu_info num_cpus
+
+  cpu_info="$(lscpu | sed -n '/^Model name:/s/[^:]*:\s*//p')"
+  num_cpus=$(grep -c processor /proc/cpuinfo)
+
+  einfo "Found ${num_cpus} CPU(s): ${cpu_info}"
+  eend 0
 }
 # }}}
 
@@ -1643,7 +1643,7 @@ config_dmraid(){
   fi
 
   if ! [ -x /sbin/dmraid ] ; then
-    eerror "dmraid not available, can not execute it." ; eend 1
+    ewarn "dmraid not available, can not execute it." ; eend 1
     return
   fi
 
@@ -1992,5 +1992,43 @@ fi
 }
 # }}}
 
+# {{{ Easteregg (for 20 years grml.org)
+display_easteregg() {
+  einfo "You found the birthday easter egg!" ; eend 0
+
+  if [[ -x /bin/toilet && -x /usr/games/lolcat ]] ; then
+    visualize() { printf "%s\n" "$*" | toilet | /usr/games/lolcat ; }
+  elif [[ -x /bin/toilet ]] ; then
+    visualize() { printf "%s\n" "$*" | toilet ; }
+  else
+    visualize() { printf "%s\n" "$*" ; }
+  fi
+
+  visualize "   \o/   "
+  visualize "20 years"
+  visualize "grml.org"
+}
+
+config_easteregg() {
+  checkbootparam 'noeasteregg' && return 0
+
+  zmodload zsh/datetime 2>/dev/null || return 0
+  zmodload zsh/mathfunc 2>/dev/null || return 0
+
+  local birthday=1694822400            # := 2023-09-16 -> TZ=UTC date -d "2023-09-16" +%s
+  local one_month=$[24*30*3600]
+  local pi=3.14159265358979323846
+  local magic=$(( one_month/(pi/2) ))  # normalization factor, used to map the [birthday;birthday+-one_month] range onto [0;+-pi/2]
+
+  if [[ $(( abs(birthday-EPOCHSECONDS) )) -le $one_month ]] ; then
+    if [[ $(( rand48() )) -le $(( cos((birthday-EPOCHSECONDS)/magic) )) ]] ; then
+      display_easteregg
+    fi
+  fi
+
+  return 0
+}
+# }}}
+
 ## END OF FILE #################################################################
 # vim:foldmethod=marker expandtab ai ft=zsh shiftwidth=2