homes/programs/bash.nix

   1 { pkgs, lib, config, ... }:
   2 {
   3 programs.bash = {
   4   shellAliases = {
   5     cl = "clear";
   6     g = "git";
   7     grep = "grep --color";
   8     j="sudo journalctl -u";
   9     jb="sudo journalctl -b";
  10     l = "ls -alh";
  11     ll = "ls -al";
  12     ls = "ls --color=tty";
  13     md-toc = "grep '^#\\+' --color";
  14     mem = "ps -e -orss=,user=,args= | sort -b -k1,1n";
  15     mem-top = "smem --sort rss --autosize";
  16     mpl = "mplayer";
  17     nixos-clean="sudo nix-collect-garbage -d";
  18     nixos-history="sudo nix-env --list-generations --profile /nix/var/nix/profiles/system";
  19     nixos-rollback="sudo nixos-rebuild switch --rollback";
  20     rsync = "rsync --no-inc-recursive --info=progress2 --inplace --partial";
  21     s="sudo systemctl";
  22     st="sudo systemctl status";
  23     u="systemctl --user";
  24     ut="systemctl --user status";
  25     watch = "watch --color";
  26   };
  27   initExtra = ''
  28     shopt -s globstar
  29     # Disable ctrl-s/ctrl-q flow control
  30     stty -ixon
  31
  32     mkcd () {
  33       mkdir -p "$1" &&
  34       cd "$1"
  35     }
  36     smartctl-tbw () {
  37       device=''${1:-/dev/sda}
  38       sudo smartctl -A $device |
  39       { awk '
  40         $0 ~ /Power_On_Hours/ { poh=$10; printf "%s / %d hours / %d days / %.2f years\n",  $2, $10, $10 / 24, $10 / 24 / 365.25 }
  41         $0 ~ /Total_LBAs_Written/ {
  42             lbas = $10;
  43             bytes = $10 * 512;
  44             mb = bytes / 1024^2;
  45             gb = bytes / 1024^3;
  46             tb = bytes / 1024^4;
  47             printf "%s / %s  / %d mb / %.1f gb / %.3f tb\n", $2, $10, mb, gb, tb
  48             printf "mean writes per hour:  / %.2f",  mb/poh
  49         }
  50         $0 ~ /Airflow_Temperature_Cel/ { print $2 " / " $10}
  51         $0 ~ /Wear_Leveling_Count/ { printf "%s / %d (%% health)\n", $2, int($4) }
  52       '; echo; } |
  53       sed -e 's:/:@:' |
  54       sed -e "s\$^\$$device @ \$" |
  55       column -ts@
  56     }
  57     swaplist () {
  58       lastpid=
  59       swap=0
  60       sudo grep -H '^Swap:' /proc/*/smaps 2>/dev/null |
  61       while IFS=: read -r file x size x
  62       do
  63         pid=''${file#/proc/}
  64         pid=''${pid%/smaps}
  65         size=''${size% kB}
  66         size=''${size##* }
  67         if test "$pid" = "$lastpid"
  68         then swap=$(( swap + size ))
  69         else
  70           if test "$swap" -gt 0
  71           then printf "%u pid=%u cmd=%s\n" "$swap" "$lastpid" "$(tr '\000' ' ' </proc/"$lastpid"/cmdline)"
  72           fi
  73           if test "$pid" = self
  74           then break
  75           else
  76             lastpid=$pid
  77             swap=$size
  78           fi
  79         fi
  80       done |
  81       sort -nk1,1
  82     }
  83     vim-git () { $EDITOR $(git diff-tree --no-commit-id --name-only --recursive "$@"); }
  84     vim-git-grep () { $EDITOR $(git grep --name-only --recursive "$@"); }
  85     zfs-mount () { for d in $(zfs list -rH -o name "$@"); do sudo zfs mount -l "$d"; done; }
  86     zfs-unmount () { sudo zfs unmount -u "$@"; }
  87   '';
  88   profileExtra = ''
  89   '';
  90 };
  91 programs.direnv.enableBashIntegration = true;
  92 programs.broot.enableBashIntegration = true;
  93 home.sessionVariables = {
  94   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)\$ '';
  95 };
  96 programs.readline = {
  97   enable = lib.mkDefault config.programs.bash.enable;
  98   includeSystemConfig = true;
  99   bindings = {
 100     "\\eOF"    = "end-of-line";
 101     "\\eOH"    = "beginning-of-line";
 102     "\\e[1;5C" = "forward-word";
 103     "\\e[1;5D" = "backward-word";
 104     "\\e[1~"   = "beginning-of-line";
 105     "\\e[4~"   = "end-of-line";
 106     "\\e[5C"   = "forward-word";
 107     "\\e[5D"   = "backward-word";
 108     "\\e[7~"   = "beginning-of-line";
 109     "\\e[8~"   = "end-of-line";
 110     "\\e[A"    = "history-search-backward";
 111     "\\e[B"    = "history-search-forward";
 112     "\\e[F"    = "end-of-line";
 113     "\\e[H"    = "beginning-of-line";
 114     "\\e\\e[C" = "forward-word";
 115     "\\e\\e[D" = "backward-word";
 116   };
 117   variables = {
 118     colored-completion-prefix = lib.mkDefault true;
 119     colored-stats = lib.mkDefault true; # Note that this may cause completion text blink in some terminals (e.g. xterm).
 120     echo-control-characters = lib.mkDefault true;
 121     mark-symlinked-directories = lib.mkDefault true;
 122     menu-complete-display-prefix = lib.mkDefault true;
 123     show-all-if-ambiguous = lib.mkDefault true;
 124     show-all-if-unmodified = lib.mkDefault true;
 125     visible-stats = lib.mkDefault false; # Append char to indicate type
 126   };
 127 };
 128 }