homes/softwares/bash.nix

   1 { pkgs, lib, config, ... }:
   2 {
   3 programs.bash = {
   4   shellAliases = {
   5     grep = "grep --color";
   6     md-toc = "grep '^#\\+' --color";
   7     mpl = "mplayer";
   8     rsync = "rsync --no-inc-recursive --info=progress2 --inplace --partial";
   9     watch = "watch --color";
  10   };
  11   initExtra = ''
  12     shopt -s globstar
  13     # Disable ctrl-s/ctrl-q flow control
  14     stty -ixon
  15
  16     smartctl-tbw () {
  17       device=''${1:-/dev/sda}
  18       sudo smartctl -A $device |
  19       { awk '
  20         $0 ~ /Power_On_Hours/ { poh=$10; printf "%s / %d hours / %d days / %.2f years\n",  $2, $10, $10 / 24, $10 / 24 / 365.25 }
  21         $0 ~ /Total_LBAs_Written/ {
  22             lbas = $10;
  23             bytes = $10 * 512;
  24             mb = bytes / 1024^2;
  25             gb = bytes / 1024^3;
  26             tb = bytes / 1024^4;
  27             printf "%s / %s  / %d mb / %.1f gb / %.3f tb\n", $2, $10, mb, gb, tb
  28             printf "mean writes per hour:  / %.2f",  mb/poh
  29         }
  30         $0 ~ /Airflow_Temperature_Cel/ { print $2 " / " $10}
  31         $0 ~ /Wear_Leveling_Count/ { printf "%s / %d (%% health)\n", $2, int($4) }
  32       '; echo; } |
  33       sed -e 's:/:@:' |
  34       sed -e "s\$^\$$device @ \$" |
  35       column -ts@
  36     }
  37     swaplist () {
  38       lastpid=
  39       swap=0
  40       sudo grep -H '^Swap:' /proc/*/smaps 2>/dev/null |
  41       while IFS=: read -r file x size x
  42       do
  43         pid=''${file#/proc/}
  44         pid=''${pid%/smaps}
  45         size=''${size% kB}
  46         size=''${size##* }
  47         if test "$pid" = "$lastpid"
  48         then swap=$(( swap + size ))
  49         else
  50           if test "$swap" -gt 0
  51           then printf "%u pid=%u cmd=%s\n" "$swap" "$lastpid" "$(tr '\000' ' ' </proc/"$lastpid"/cmdline)"
  52           fi
  53           if test "$pid" = self
  54           then break
  55           else
  56             lastpid=$pid
  57             swap=$size
  58           fi
  59         fi
  60       done |
  61       sort -nk1,1
  62     }
  63     vim-git () { $EDITOR $(git diff-tree --no-commit-id --name-only --recursive "$@"); }
  64     vim-git-grep () { $EDITOR $(git grep --name-only --recursive "$@"); }
  65     zfs-mount () { for d in $(zfs list -rH -o name "$@"); do sudo zfs mount -l "$d"; done; }
  66     zfs-unmount () { sudo zfs unmount -u "$@"; }
  67   '';
  68 };
  69 programs.direnv.enableBashIntegration = true;
  70 programs.broot.enableBashIntegration = true;
  71 home.sessionVariables = {
  72   PS1 = ''\[\033[1;32m\]\[\e]0;\u@\h: \w\a\]\W\[\033[0m\] \$(e=\$?; if [ \$e != 0 ]; then echo '\[\e[0;91m\]'\$e'\[\e[0m\]'; fi)\$ '';
  73 };
  74 home.file.".inputrc".text = ''
  75   "\e[1~": beginning-of-line
  76   "\e[4~": end-of-line
  77   "\e[7~": beginning-of-line
  78   "\e[8~": end-of-line
  79   "\eOH": beginning-of-line
  80   "\eOF": end-of-line
  81   "\e[H": beginning-of-line
  82   "\e[F": end-of-line
  83   "\e[1;5C": forward-word
  84   "\e[1;5D": backward-word
  85   "\e[5C": forward-word
  86   "\e[5D": backward-word
  87   "\e\e[C": forward-word
  88   "\e\e[D": backward-word
  89 '';
  90 }