homes/softwares/bash.nix

   1 { pkgs, lib, config, ... }:
   2 {
   3 programs.bash = {
   4   shellAliases = {
   5     grep = "grep --color";
   6     g = "git";
   7     md-toc = "grep '^#\\+' --color";
   8     mpl = "mplayer";
   9     rsync = "rsync --no-inc-recursive --info=progress2 --inplace --partial";
  10     watch = "watch --color";
  11   };
  12   initExtra = ''
  13     shopt -s globstar
  14     # Disable ctrl-s/ctrl-q flow control
  15     stty -ixon
  16
  17     smartctl-tbw () {
  18       device=''${1:-/dev/sda}
  19       sudo smartctl -A $device |
  20       { awk '
  21         $0 ~ /Power_On_Hours/ { poh=$10; printf "%s / %d hours / %d days / %.2f years\n",  $2, $10, $10 / 24, $10 / 24 / 365.25 }
  22         $0 ~ /Total_LBAs_Written/ {
  23             lbas = $10;
  24             bytes = $10 * 512;
  25             mb = bytes / 1024^2;
  26             gb = bytes / 1024^3;
  27             tb = bytes / 1024^4;
  28             printf "%s / %s  / %d mb / %.1f gb / %.3f tb\n", $2, $10, mb, gb, tb
  29             printf "mean writes per hour:  / %.2f",  mb/poh
  30         }
  31         $0 ~ /Airflow_Temperature_Cel/ { print $2 " / " $10}
  32         $0 ~ /Wear_Leveling_Count/ { printf "%s / %d (%% health)\n", $2, int($4) }
  33       '; echo; } |
  34       sed -e 's:/:@:' |
  35       sed -e "s\$^\$$device @ \$" |
  36       column -ts@
  37     }
  38     swaplist () {
  39       lastpid=
  40       swap=0
  41       sudo grep -H '^Swap:' /proc/*/smaps 2>/dev/null |
  42       while IFS=: read -r file x size x
  43       do
  44         pid=''${file#/proc/}
  45         pid=''${pid%/smaps}
  46         size=''${size% kB}
  47         size=''${size##* }
  48         if test "$pid" = "$lastpid"
  49         then swap=$(( swap + size ))
  50         else
  51           if test "$swap" -gt 0
  52           then printf "%u pid=%u cmd=%s\n" "$swap" "$lastpid" "$(tr '\000' ' ' </proc/"$lastpid"/cmdline)"
  53           fi
  54           if test "$pid" = self
  55           then break
  56           else
  57             lastpid=$pid
  58             swap=$size
  59           fi
  60         fi
  61       done |
  62       sort -nk1,1
  63     }
  64     vim-git () { $EDITOR $(git diff-tree --no-commit-id --name-only --recursive "$@"); }
  65     vim-git-grep () { $EDITOR $(git grep --name-only --recursive "$@"); }
  66     zfs-mount () { for d in $(zfs list -rH -o name "$@"); do sudo zfs mount -l "$d"; done; }
  67     zfs-unmount () { sudo zfs unmount -u "$@"; }
  68   '';
  69   profileExtra = ''
  70   '';
  71 };
  72 programs.direnv.enableBashIntegration = true;
  73 programs.broot.enableBashIntegration = true;
  74 home.sessionVariables = {
  75   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)\$ '';
  76 };
  77 programs.readline = {
  78   enable = lib.mkDefault config.programs.bash.enable;
  79   includeSystemConfig = true;
  80   bindings = {
  81     "\\eOF"    = "end-of-line";
  82     "\\eOH"    = "beginning-of-line";
  83     "\\e[1;5C" = "forward-word";
  84     "\\e[1;5D" = "backward-word";
  85     "\\e[1~"   = "beginning-of-line";
  86     "\\e[4~"   = "end-of-line";
  87     "\\e[5C"   = "forward-word";
  88     "\\e[5D"   = "backward-word";
  89     "\\e[7~"   = "beginning-of-line";
  90     "\\e[8~"   = "end-of-line";
  91     "\\e[A"    = "history-search-backward";
  92     "\\e[B"    = "history-search-forward";
  93     "\\e[F"    = "end-of-line";
  94     "\\e[H"    = "beginning-of-line";
  95     "\\e\\e[C" = "forward-word";
  96     "\\e\\e[D" = "backward-word";
  97   };
  98   variables = {
  99     colored-completion-prefix = lib.mkDefault true;
 100     colored-stats = lib.mkDefault true; # Note that this may cause completion text blink in some terminals (e.g. xterm).
 101     echo-control-characters = lib.mkDefault true;
 102     mark-symlinked-directories = lib.mkDefault true;
 103     menu-complete-display-prefix = lib.mkDefault true;
 104     show-all-if-ambiguous = lib.mkDefault true;
 105     show-all-if-unmodified = lib.mkDefault true;
 106     visible-stats = lib.mkDefault false; # Append char to indicate type
 107   };
 108 };
 109 }