44 lines
1.4 KiB
Markdown
44 lines
1.4 KiB
Markdown
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# emulating `termux-location`
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to bodge surplus on wheels (s+ow) on non-Termux systems
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!!! note
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dummy admonition for colour matching
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!!! warning
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dummy admonition for colour matching
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`termux-location`, part of [Termux:API](https://wiki.termux.com/wiki/Termux:API), gets the device's
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location via android apis and returns a json response through stdout:
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```text
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{
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"latitude": 1.3277513,
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"longitude": 103.678317,
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"altitude": 51.6298828125,
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"accuracy": 48.46337890625,
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"vertical_accuracy": 38.4659423828125,
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"bearing": 0.0,
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"speed": 0.0,
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"elapsedMs": 28,
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"provider": "gps"
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}
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```
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see <https://wiki.termux.com/wiki/Termux-location> for more information
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## implementing for surplus on wheels (s+ow)
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s+ow will call the command a total of six times, being three pairs of parallel
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`$LOCATION_CMD -p "network"` and `$LOCATION_CMD -p "gps"` invocations, before deciding after
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exhausting all six runs on which output to choose, if any command runs were successful
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even if somewhere in the termux-location implementation fails, it always (begrudgingly) returns
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zero. s+ow will treat the invocation of the command as successful if there is **any output** to
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the standard output (stdout) stream
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## implementing for surplus (s+)
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s+, when passed `--t / --using-termux-location`, will consume stdin, parse it as json and then
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attempt to retrieve the `latitude` and `longitude` keys as floating point numbers
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