summaryrefslogtreecommitdiffstats
path: root/tv/5pkgs/simple/q/default.nix
blob: 809e37e593d931c679a3e6c51e6463f96dba8003 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
with import ./lib;
{ pkgs }:
let
  q-cal = let

    # Maximum width of cal's output.
    calwidth = 23;

    # Number of space characters between two calendars.
    hspace = 2;

    # Return number of columns required to print n calenders side by side.
    need_width = n: assert n >= 1; n * calwidth + (n - 1) * hspace;

  in /* sh */ ''
    cols=$(${pkgs.ncurses}/bin/tput cols)
    if test $cols -ge ${toString (need_width 3)}; then
      ${pkgs.utillinux}/bin/cal --color=always -mw3
    elif test $cols -ge ${toString (need_width 2)}; then
      ${pkgs.utillinux}/bin/cal --color=always -mw -n 2
    elif test $cols -ge ${toString (need_width 1)}; then
      ${pkgs.utillinux}/bin/cal --color=always -mw1
    else
      :
    fi |
    ${pkgs.gnused}/bin/sed -r '
      # dim week numbers
      s/((^ *|  )[ 1-5][0-9](   *)?)(([ 1-3][0-9])*)/\1\4/g
      # dim month and day names
      s/^ *[A-Z].*/&/
      # highlight current date
      s/\[7m//
      s/\[27m//
    '
  '';

  q-isodate = TZ: color: /* sh */ ''
    TZ=${shell.escape TZ} \
    ${pkgs.coreutils}/bin/date \
        '+%Y-%m-%dT[;'${shell.escape color}'m%H:%M:%S%:z'
  '';

  q-deudate = q-isodate "Europe/Berlin" "38;5;085";

  # Singapore's red is #ED2E38
  q-sgtdate = q-isodate "Asia/Singapore" "38;2;237;46;56";

  q-thadate = q-isodate "Asia/Bangkok" "38;5;226";

  q-utcdate = q-isodate "UTC" "38;5;065";

  q-gitdir = /* sh */ ''
    if test -d .git; then
      #git status --porcelain
      branch=$(
        ${pkgs.git}/bin/git branch \
          | ${pkgs.gnused}/bin/sed -rn 's/^\* (.*)/\1/p'
      )
      echo "± $LOGNAME@''${HOSTNAME-$(${pkgs.nettools}/bin/hostname)}:$PWD .git $branch"
    fi
  '';

  q-intel_backlight = /* sh */ ''
    cd /sys/class/backlight/intel_backlight
    </dev/null exec ${pkgs.gawk}/bin/awk '
      END {
        getline actual_brightness < "actual_brightness"
        getline max_brightness < "max_brightness"
        getline brightness < "brightness"
        printf "intel_backlight %d%% %d/%d\n" \
            , actual_brightness / max_brightness * 100 \
            , actual_brightness \
            , max_brightness
      }
    '
  '';

  q-virtualization = /* sh */ ''
    echo "VT: $(${pkgs.systemd}/bin/systemd-detect-virt)"
  '';

  q-net = /* sh */ ''
    for dev in $(
      ${pkgs.iproute}/bin/ip a |
      ${pkgs.gnused}/bin/sed -rn 's/^[0-9]+: ([^:]+):.*/\1/p' |
      ${pkgs.gnugrep}/bin/grep -Ev '^(lo|retiolum|wiregrill)$'
      # TODO wiregrill ping ni.w, retiolum ping ni.r
    ); do
      {
        inet=$(${pkgs.iproute}/bin/ip addr show $dev \
          | ${pkgs.gnused}/bin/sed -n '
              s/.*inet \([0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+\).*/\1/p
            ')
        ssid=$(${pkgs.iw}/bin/iw dev $dev link \
          | ${pkgs.gnused}/bin/sed -n '
              s/.*\tSSID: \(.*\)/\1/p
            ')
        latency=$(
          /run/wrappers/bin/ping -W .25 -c 1 -I "$dev" ni.i 2>&1 |
          ${pkgs.gnused}/bin/sed -rn '
            s/.*time=([0-9.]+).*/online ni=\1/p
            s/.*Network is unreachable.*/offline/p
            s/.*100% packet loss.*/offline/p
          '
        )
        echo "$dev''${inet:+ $inet}''${ssid:+ $ssid} $latency"
      } &
    done
    wait
  '';

  q-thermal_zone = /* sh */ ''
    for i in /sys/class/thermal/thermal_zone*; do
      type=$(${pkgs.coreutils}/bin/cat $i/type)
      temp=$(${pkgs.coreutils}/bin/cat $i/temp)
      printf '%s %s°C\n' $type $(echo $temp / 1000 | ${pkgs.bc}/bin/bc)
    done
  '';

  q-todo = /* sh */ ''
    TODO_file=$PWD/TODO
    if test -e "$TODO_file"; then
      ${pkgs.jq}/bin/jq -Rrs <"$TODO_file" -f ${pkgs.writeJq "q-todo.jq" ''
        split("\n") | map(
          (match("^([0-9]+-\\d{2}-\\d{2})\\s+(.*)$").captures | map(.string))
            as $captures |
          ($captures[0] | strptime("%Y-%m-%d") | mktime) as $date |
          $captures[1] as $text |

          select(now >= $date) |

          ($text | test("\\[URGENT]"; "i")) as $urgent |
          (if $urgent then "38;5;196" else "38;5;208" end) as $sgr |
          if $urgent then sub("\\s*\\[URGENT]\\s*"; " "; "i") else . end |

          "\u001b[\($sgr)m\(.)\u001b[m"
        ) |
        if length == 0 then "nothing to remind" else .[] end
      ''}
    else
      echo "$TODO_file: no such file or directory"
    fi
  '';

in
# bash needed for <(...)
pkgs.writeBashBin "q" ''
  set -eu
  export PATH=/var/empty
  ${q-cal}
  ${q-utcdate}
  ${q-deudate}
  ${q-sgtdate}
  (${q-gitdir}) &
  (${q-intel_backlight}) &
  ${pkgs.q-power_supply}/bin/q-power_supply &
  (${q-virtualization}) &
  (${q-net}) &
  (${q-thermal_zone}) &
  wait
  if test "$PWD" != "$HOME" && test -e "$HOME/TODO"; then
    TODO_home_entries=$(cd; (${q-todo}) | ${pkgs.coreutils}/bin/wc -l)
    if test "$TODO_home_entries" = 1; then
      TODO_format='There is %d entry in ~/TODO'
    else
      TODO_format='There are %d entries in ~/TODO'
    fi
    printf "\x1b[38;5;238m$TODO_format\x1b[m\n" "$TODO_home_entries"
  fi
  (${q-todo}) || :
''