Meshtastic-Android/app/src/main/java/com/geeksville/mesh/model/DeviceVersion.kt
2025-01-02 07:00:51 -03:00

51 lines
No EOL
1.8 KiB
Kotlin

/*
* Copyright (c) 2025 Meshtastic LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.geeksville.mesh.model
import com.geeksville.mesh.android.Logging
/**
* Provide structured access to parse and compare device version strings
*/
data class DeviceVersion(val asString: String) : Comparable<DeviceVersion>, Logging {
val asInt
get() = try {
verStringToInt(asString)
} catch (e: Exception) {
warn("Exception while parsing version '$asString', assuming version 0")
0
}
/**
* Convert a version string of the form 1.23.57 to a comparable integer of
* the form 12357.
*
* Or throw an exception if the string can not be parsed
*/
private fun verStringToInt(s: String): Int {
// Allow 1 to two digits per match
val match =
Regex("(\\d{1,2}).(\\d{1,2}).(\\d{1,2})").find(s)
?: throw Exception("Can't parse version $s")
val (major, minor, build) = match.destructured
return major.toInt() * 10000 + minor.toInt() * 100 + build.toInt()
}
override fun compareTo(other: DeviceVersion): Int = asInt - other.asInt
}