Commit | Line | Data |
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75b23ff8 SK |
1 | #! /usr/bin/awk -f |
2 | ||
c4fd5e7d SK |
3 | # Naming convention: |
4 | # Variables: | |
5 | # - global, builtin : ALLCAPS | |
6 | # - global, public : CamelCase | |
7 | # - global, private : _snake_case_prefixed_underscore | |
8 | # - local : snake_case | |
9 | # Functions: | |
10 | # - global, public : snake_case | |
11 | ||
75b23ff8 SK |
12 | BEGIN { |
13 | FS = msg_fs ? msg_fs : "|" | |
14 | OFS = msg_fs ? msg_fs : "|" | |
15 | Kfs = key_fs ? key_fs : ":" | |
bd3e26c8 SK |
16 | |
17 | _total_to_diff["khatus_sensor_net_addr_io", "bytes_read" ] = 1 | |
18 | _total_to_diff["khatus_sensor_net_addr_io", "bytes_written" ] = 1 | |
19 | _total_to_diff["khatus_sensor_disk_io" , "sectors_read" ] = 1 | |
20 | _total_to_diff["khatus_sensor_disk_io" , "sectors_written"] = 1 | |
2d07b264 SK |
21 | |
22 | # (x * y) / z = x * w | |
23 | # ==> w = y / z | |
24 | # (x * bytes_per_sector) / bytes_per_mb = x * scaling_factor | |
25 | # ==> scaling_factor = bytes_per_sector / bytes_per_mb | |
c4fd5e7d SK |
26 | _bytes_per_sector = 512 |
27 | _bytes_per_mb = 1024 * 1024 | |
28 | _scale["khatus_sensor_disk_io", "sectors_written"] = _bytes_per_sector / _bytes_per_mb | |
29 | _scale["khatus_sensor_disk_io", "sectors_read" ] = _bytes_per_sector / _bytes_per_mb | |
2d07b264 SK |
30 | # (x / y) = x * z |
31 | # ==> z = 1 / y | |
32 | # x / bytes_per_mb = x * scaling_factor | |
33 | # ==> scaling_factor = 1 / bytes_per_mb | |
c4fd5e7d SK |
34 | _scale["khatus_sensor_net_addr_io", "bytes_written"] = 1 / _bytes_per_mb |
35 | _scale["khatus_sensor_net_addr_io", "bytes_read" ] = 1 / _bytes_per_mb | |
75b23ff8 SK |
36 | } |
37 | ||
38 | # ----------------------------------------------------------------------------- | |
39 | # Input | |
40 | # ----------------------------------------------------------------------------- | |
41 | $1 == "OK" { | |
c4fd5e7d | 42 | cache_update() |
75b23ff8 SK |
43 | } |
44 | ||
45 | $1 == "OK" && \ | |
46 | $2 == "khatus_sensor_datetime" { | |
47 | print_msg_ok("status_bar", make_status_bar()) | |
48 | } | |
49 | ||
75b23ff8 | 50 | # ----------------------------------------------------------------------------- |
c4fd5e7d | 51 | # Cache |
75b23ff8 SK |
52 | # ----------------------------------------------------------------------------- |
53 | ||
c4fd5e7d | 54 | function cache_update( src, key, val, len_line, len_head, len_val, time) { |
75b23ff8 SK |
55 | src = $2 |
56 | key = $3 | |
75b23ff8 SK |
57 | # Not just using $4 for val - because an unstructured value (like name of a |
58 | # song) might contain a character identical to FS | |
59 | len_line = length($0) | |
60 | len_head = length($1 FS $2 FS $3 FS) | |
61 | len_val = len_line - len_head | |
62 | val = substr($0, len_head + 1, len_val) | |
c4fd5e7d SK |
63 | val = cache_maybe_total_to_diff(src, key, val) |
64 | val = cache_maybe_scale(src, key, val) | |
65 | _cache[src, key] = val | |
66 | time = cache_get_time() | |
67 | _cache_mtime[src, key] = time | |
75b23ff8 | 68 | if (time % 3600 == 0) { |
c4fd5e7d | 69 | cache_gc() |
75b23ff8 SK |
70 | } |
71 | } | |
72 | ||
c4fd5e7d SK |
73 | function cache_get(result, src, key, ttl, time, age, is_expired) { |
74 | time = cache_get_time() | |
75 | _cache_atime[src, key] = time | |
76 | age = time - _cache_mtime[src, key] | |
77 | result["is_expired"] = ttl && age > ttl # ttl = 0 => forever | |
78 | result["value"] = _cache[src, key] | |
269df6fa SK |
79 | } |
80 | ||
c4fd5e7d | 81 | function cache_res_fmt_or_def(result, format, default) { |
269df6fa SK |
82 | return result["is_expired"] ? default : sprintf(format, result["value"]) |
83 | } | |
84 | ||
c4fd5e7d | 85 | function cache_get_fmt_def(src, key, ttl, format, default, result) { |
269df6fa | 86 | default = default ? default : "--" |
c4fd5e7d SK |
87 | cache_get(result, src, key, ttl) |
88 | return cache_res_fmt_or_def(result, format, default) | |
75b23ff8 SK |
89 | } |
90 | ||
c4fd5e7d | 91 | function cache_get_time( src, key, time) { |
75b23ff8 SK |
92 | src = "khatus_sensor_datetime" |
93 | key = "epoch" | |
c4fd5e7d SK |
94 | time = _cache[src, key] |
95 | _cache_atime[src, key] = time | |
75b23ff8 SK |
96 | return time |
97 | } | |
98 | ||
c4fd5e7d SK |
99 | function cache_gc( src_and_key, unused_for) { |
100 | for (src_and_key in _cache) { | |
101 | unused_for = cache_get_time() - _cache_atime[src_and_key] | |
75b23ff8 | 102 | if (unused_for > 3600) { |
171acde3 | 103 | print_msg_info(\ |
c4fd5e7d | 104 | "cache_gc", "Deleting unused src_and_key: " src_and_key \ |
75b23ff8 | 105 | ) |
c4fd5e7d | 106 | delete _cache[src_and_key] |
75b23ff8 SK |
107 | } |
108 | } | |
109 | } | |
110 | ||
c4fd5e7d | 111 | function cache_maybe_total_to_diff(src, key, val, key_parts) { |
bd3e26c8 SK |
112 | split(key, key_parts, Kfs) |
113 | if (_total_to_diff[src, key_parts[1]]) { | |
114 | _prev[src, key] = _curr[src, key] | |
115 | _curr[src, key] = val | |
116 | return (_curr[src, key] - _prev[src, key]) | |
117 | } else { | |
118 | return val | |
119 | } | |
120 | } | |
121 | ||
c4fd5e7d | 122 | function cache_maybe_scale(src, key, val, key_parts) { |
2d07b264 SK |
123 | split(key, key_parts, Kfs) |
124 | if ((src SUBSEP key_parts[1]) in _scale) { | |
125 | return val * _scale[src, key_parts[1]] | |
126 | } else { | |
127 | return val | |
128 | } | |
129 | } | |
130 | ||
75b23ff8 SK |
131 | # ----------------------------------------------------------------------------- |
132 | # Status bar | |
133 | # ----------------------------------------------------------------------------- | |
134 | ||
135 | function make_status_bar( position, bar, sep, i, j) { | |
136 | position[++i] = "" | |
137 | position[++i] = make_status_energy() | |
138 | position[++i] = make_status_mem() | |
139 | position[++i] = make_status_cpu() | |
140 | position[++i] = make_status_disk() | |
141 | position[++i] = make_status_net() | |
142 | position[++i] = make_status_bluetooth() | |
143 | position[++i] = make_status_screen_brightness() | |
144 | position[++i] = make_status_volume() | |
145 | position[++i] = make_status_mpd() | |
146 | position[++i] = make_status_weather() | |
147 | position[++i] = make_status_datetime() | |
148 | position[++i] = "" | |
149 | bar = "" | |
150 | sep = "" | |
151 | for (j = 1; j <= i; j++) { | |
152 | bar = bar sep position[j] | |
153 | sep = " " | |
154 | } | |
155 | return bar | |
156 | } | |
157 | ||
158 | function make_status_energy( state, charge, direction_of_change) { | |
c4fd5e7d SK |
159 | cache_get(state , "khatus_sensor_energy", "battery_state" , 0) |
160 | cache_get(charge, "khatus_sensor_energy", "battery_percentage", 0) | |
75b23ff8 | 161 | |
269df6fa | 162 | if (state["value"] == "discharging") { |
75b23ff8 | 163 | direction_of_change = "<" |
269df6fa | 164 | } else if (state["value"] == "charging") { |
75b23ff8 SK |
165 | direction_of_change = ">" |
166 | } else { | |
167 | direction_of_change = "=" | |
168 | } | |
169 | ||
269df6fa | 170 | return sprintf("E%s%d%%", direction_of_change, charge["value"]) |
75b23ff8 SK |
171 | } |
172 | ||
173 | function make_status_mem( total, used, percent, status) { | |
c4fd5e7d SK |
174 | cache_get(total, "khatus_sensor_memory", "total", 5) |
175 | cache_get(used , "khatus_sensor_memory", "used" , 5) | |
269df6fa SK |
176 | # Checking total["value"] to avoid division by zero when data is missing |
177 | if (!total["is_expired"] && \ | |
178 | !used["is_expired"] && \ | |
179 | total["value"] \ | |
180 | ) { | |
181 | percent = round((used["value"] / total["value"]) * 100) | |
75b23ff8 SK |
182 | status = sprintf("%d%%", percent) |
183 | } else { | |
184 | status = "__" | |
185 | } | |
186 | return sprintf("M=%s", status) | |
187 | } | |
188 | ||
269df6fa | 189 | function make_status_cpu( l, t, f) { |
fd710ac0 SK |
190 | l_src = "khatus_sensor_loadavg" |
191 | t_src = "khatus_sensor_temperature" | |
192 | f_src = "khatus_sensor_fan" | |
193 | l = cache_get_fmt_def(l_src, "load_avg_1min", 5, "%4.2f") | |
194 | t = cache_get_fmt_def(t_src, "temp_c" , 5, "%d" ) | |
195 | f = cache_get_fmt_def(f_src, "speed" , 5, "%4d" ) | |
269df6fa | 196 | return sprintf("C=[%s %s°C %srpm]", l, t, f) |
75b23ff8 SK |
197 | } |
198 | ||
fd710ac0 SK |
199 | function make_status_disk( u, w, r, src_u, src_io) { |
200 | src_u = "khatus_sensor_disk_space" | |
201 | src_io = "khatus_sensor_disk_io" | |
202 | u = cache_get_fmt_def(src_space, "disk_usage_percentage", 10, "%s") | |
203 | w = cache_get_fmt_def(src_io , "sectors_written" , 5, "%0.3f") | |
204 | r = cache_get_fmt_def(src_io , "sectors_read" , 5, "%0.3f") | |
2d07b264 | 205 | return sprintf("D=[%s%% %s▲ %s▼]", u, w, r) |
75b23ff8 SK |
206 | } |
207 | ||
208 | function make_status_net( \ | |
209 | number_of_net_interfaces_to_show, \ | |
210 | net_interfaces_to_show, \ | |
fd710ac0 SK |
211 | io, \ |
212 | wi, \ | |
75b23ff8 SK |
213 | i, \ |
214 | interface, \ | |
215 | label, \ | |
2d07b264 | 216 | wifi, \ |
75b23ff8 SK |
217 | addr, \ |
218 | w, \ | |
219 | r, \ | |
75b23ff8 | 220 | io_stat, \ |
2d07b264 SK |
221 | out, \ |
222 | sep \ | |
75b23ff8 SK |
223 | ) { |
224 | number_of_net_interfaces_to_show = \ | |
225 | split(opt_net_interfaces_to_show, net_interfaces_to_show, ",") | |
fd710ac0 SK |
226 | io = "khatus_sensor_net_addr_io" |
227 | wi = "khatus_sensor_net_wifi_status" | |
75b23ff8 SK |
228 | out = "" |
229 | sep = "" | |
230 | for (i = number_of_net_interfaces_to_show; i > 0; i--) { | |
231 | interface = net_interfaces_to_show[i] | |
232 | label = substr(interface, 1, 1) | |
75b23ff8 | 233 | if (interface ~ "^w") { |
fd710ac0 | 234 | wifi = cache_get_fmt_def(wi, "status" Kfs interface, 10, "%s") |
269df6fa | 235 | label = label ":" wifi |
75b23ff8 | 236 | } |
fd710ac0 SK |
237 | addr = cache_get_fmt_def(io, "addr" Kfs interface, 5, "%s", "") |
238 | w = cache_get_fmt_def(io, "bytes_written" Kfs interface, 5, "%0.3f") | |
239 | r = cache_get_fmt_def(io, "bytes_read" Kfs interface, 5, "%0.3f") | |
2d07b264 | 240 | io_stat = addr ? sprintf("%s▲ %s▼", w, r) : "--" |
75b23ff8 SK |
241 | out = out sep label ":" io_stat |
242 | sep = " " | |
243 | } | |
75b23ff8 SK |
244 | return sprintf("N[%s]", out) |
245 | } | |
246 | ||
269df6fa SK |
247 | function make_status_bluetooth( src, key) { |
248 | src = "khatus_sensor_bluetooth_power" | |
249 | key = "power_status" | |
c4fd5e7d | 250 | return sprintf("B=%s", cache_get_fmt_def(src, key, 10, "%s")) |
75b23ff8 SK |
251 | } |
252 | ||
269df6fa SK |
253 | function make_status_screen_brightness( src, key) { |
254 | src = "khatus_sensor_screen_brightness" | |
255 | key = "percentage" | |
c4fd5e7d | 256 | return sprintf("*%s%%", cache_get_fmt_def(src, key, 5, "%d")) |
75b23ff8 SK |
257 | } |
258 | ||
fd710ac0 | 259 | function make_status_volume( sink, mu, vl, vr, show) { |
75b23ff8 | 260 | sink = opt_pulseaudio_sink |
fd710ac0 SK |
261 | cache_get(mu, "khatus_sensor_volume", "mute" Kfs sink, 5) |
262 | cache_get(vl, "khatus_sensor_volume", "vol_left" Kfs sink, 5) | |
263 | cache_get(vr, "khatus_sensor_volume", "vol_right" Kfs sink, 5) | |
767766df | 264 | show = "--" |
fd710ac0 SK |
265 | if (!mu["is_expired"] && !vl["is_expired"] && !vr["is_expired"]) { |
266 | if (mu["value"] == "yes") {show = "X"} | |
267 | else if (mu["value"] == "no") {show = vl["value"] " " vr["value"]} | |
75b23ff8 SK |
268 | else { |
269 | print_msg_error(\ | |
270 | "make_status_volume", \ | |
fd710ac0 | 271 | "Unexpected value for 'mute' field: " mu["value"] \ |
75b23ff8 SK |
272 | ) |
273 | } | |
75b23ff8 | 274 | } |
269df6fa | 275 | return sprintf("(%s)", show) |
75b23ff8 SK |
276 | } |
277 | ||
278 | function make_status_mpd( state, status) { | |
c4fd5e7d | 279 | cache_get(state, "khatus_sensor_mpd", "state", 5) |
269df6fa SK |
280 | if (!state["is_expired"] && state["value"]) { |
281 | if (state["value"] == "play") { | |
75b23ff8 | 282 | status = make_status_mpd_state_known("▶") |
269df6fa | 283 | } else if (state["value"] == "pause") { |
75b23ff8 | 284 | status = make_status_mpd_state_known("❚❚") |
269df6fa | 285 | } else if (state["value"] == "stop") { |
75b23ff8 SK |
286 | status = make_status_mpd_state_known("⬛") |
287 | } else { | |
288 | print_msg_error(\ | |
289 | "make_status_mpd", \ | |
269df6fa | 290 | "Unexpected value for 'state' field: " state["value"] \ |
75b23ff8 SK |
291 | ) |
292 | status = "--" | |
293 | } | |
294 | } else { | |
295 | status = "--" | |
296 | } | |
297 | ||
298 | return sprintf("[%s]", status) | |
299 | } | |
300 | ||
301 | function make_status_mpd_state_known(symbol, s, song, time, percentage) { | |
302 | s = "khatus_sensor_mpd" | |
c4fd5e7d SK |
303 | song = cache_get_fmt_def(s, "song" , 5, "%s", "?") |
304 | time = cache_get_fmt_def(s, "play_time_minimal_units", 5, "%s", "?") | |
305 | percent = cache_get_fmt_def(s, "play_time_percentage" , 5, "%s", "?") | |
75b23ff8 SK |
306 | song = substr(song, 1, opt_mpd_song_max_chars) |
307 | return sprintf("%s %s %s %s", symbol, time, percent, song) | |
308 | } | |
309 | ||
fd710ac0 SK |
310 | function make_status_weather( src, hour, t_f) { |
311 | src = "khatus_sensor_weather" | |
75b23ff8 | 312 | hour = 60 * 60 |
fd710ac0 | 313 | t_f = cache_get_fmt_def(src, "temperature_f", 3 * hour, "%d") |
75b23ff8 SK |
314 | return sprintf("%s°F", t_f) |
315 | } | |
316 | ||
317 | function make_status_datetime( dt) { | |
c4fd5e7d | 318 | return cache_get_fmt_def("khatus_sensor_datetime", "datetime", 5, "%s") |
75b23ff8 SK |
319 | } |
320 | ||
321 | # ----------------------------------------------------------------------------- | |
322 | # Output | |
323 | # ----------------------------------------------------------------------------- | |
324 | ||
325 | function print_msg_ok(key, val) { | |
326 | print_msg("OK", key, val, "/dev/stdout") | |
327 | } | |
328 | ||
171acde3 SK |
329 | function print_msg_info(location, msg) { |
330 | print_msg("INFO", location, msg, "/dev/stderr") | |
331 | } | |
332 | ||
75b23ff8 SK |
333 | function print_msg_error(location, msg) { |
334 | print_msg("ERROR", location, msg, "/dev/stderr") | |
335 | } | |
336 | ||
337 | function print_msg(status, key, val, channel) { | |
338 | print(status, "khatus_bar", key, val) > channel | |
339 | } | |
340 | ||
341 | # ----------------------------------------------------------------------------- | |
342 | # Numbers | |
343 | # ----------------------------------------------------------------------------- | |
344 | ||
345 | function round(n) { | |
346 | return int(n + 0.5) | |
347 | } |