src/main/kotlin/update/PluginUpdater.kt diff

← → edited src/main/kotlin/update/PluginUpdater.kt

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⁠ kyle wood: Standardize HTTP requests through Jetbrains HttpRequests

The McdevHttp util allows us to serve mocked results for tests in the
future.

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/*
* Minecraft Development for IntelliJ
*
* https://mcdev.io/
*
* Copyright (C) 2026 minecraft-dev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, version 3.0 only.
*
* 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/

package com.demonwav.mcdev.update

import com.demonwav.mcdev.util.McdevReflection
import com.demonwav.mcdev.util.forEachNotNull
import com.demonwav.mcdev.util.invokeLater
import com.intellij.ide.plugins.IdeaPluginDescriptor
import com.intellij.ide.plugins.PluginManagerCore
import com.intellij.ide.plugins.PluginManagerMain
import com.intellij.ide.plugins.PluginNode
import com.intellij.ide.plugins.RepositoryHelper
import com.intellij.openapi.application.ApplicationInfo
import com.intellij.openapi.application.ApplicationManager
import com.intellij.openapi.application.ModalityState
import com.intellij.openapi.progress.ProgressIndicator
import com.intellij.openapi.progress.ProgressManager
import com.intellij.openapi.progress.Task
import com.intellij.openapi.updateSettings.impl.PluginDownloader
import com.intellij.openapi.util.JDOMUtil
import com.intellij.openapi.util.SystemInfo
import com.intellij.util.io.HttpRequests
import java.io.IOException
import java.net.URLEncoder
import org.jdom.Element
import org.jdom.JDOMException

object PluginUpdater {
fun runUpdateCheck(callback: (PluginUpdateStatus) -> Boolean) {
ApplicationManager.getApplication().executeOnPooledThread { updateCheck(callback) }
}

// Custom update check to enable downgrading the plugin switching from nightly -> stable
private fun updateCheck(callback: (PluginUpdateStatus) -> Boolean) {
var updateStatus: PluginUpdateStatus
try {
updateStatus = checkUpdatesInMainRepo()

RepositoryHelper.getPluginHosts()
.forEachNotNull { updateStatus = updateStatus.mergeWith(checkUpdatesInCustomRepo(it)) }

val finalUpdate = updateStatus
ApplicationManager.getApplication().invokeLater({ callback(finalUpdate) }, ModalityState.any())
} catch (_: Exception) {
PluginUpdateStatus.CheckFailed("Minecraft Development plugin update check failed")
}
}

private fun checkUpdatesInMainRepo(): PluginUpdateStatus {
val buildNumber = ApplicationInfo.getInstance().build.asString()
val currentVersion = PluginUtil.pluginVersion
val os = URLEncoder.encode(SystemInfo.OS_NAME + " " + SystemInfo.OS_VERSION, Charsets.UTF_8)
val url =
"https://plugins.jetbrains.com/plugins/list?pluginId=8327&build=" +
"$buildNumber&pluginVersion=$currentVersion&os=$os"

val responseDoc = HttpRequests.request(url).connect<Element> { request ->
try {
return@connect JDOMUtil.load(request.inputStream)
} catch (e: JDOMException) {
e.printStackTrace()
}

null
} ?: return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response")

if (responseDoc.name != "plugin-repository") {
return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response")
}
if (responseDoc.children.isEmpty()) {
return PluginUpdateStatus.LatestVersionInstalled
}

val newVersion = responseDoc.getChild("category")?.getChild("idea-plugin")?.getChild("version")?.text
?: return PluginUpdateStatus.CheckFailed("Couldn't find plugin version in repository response")

val plugin = PluginManagerCore.getPlugin(PluginUtil.PLUGIN_ID)!!
val pluginNode = PluginNode(PluginUtil.PLUGIN_ID)
pluginNode.version = newVersion
pluginNode.name = plugin.name
pluginNode.description = plugin.description

if (pluginNode.version == PluginUtil.pluginVersion) {
return PluginUpdateStatus.LatestVersionInstalled
}

return PluginUpdateStatus.Update(pluginNode, null)
}

private fun checkUpdatesInCustomRepo(host: String): PluginUpdateStatus {
val plugins = try {
RepositoryHelper.loadPluginModels(host, null, null)
.map { it.getDescriptor() }
} catch (_: IOException) {
return PluginUpdateStatus.CheckFailed("Checking custom plugin repository $host failed")
}

val minecraftPlugin = plugins.firstOrNull { plugin -> plugin.pluginId == PluginUtil.PLUGIN_ID }
?: return PluginUpdateStatus.LatestVersionInstalled

return updateIfNotLatest(minecraftPlugin, host)
}

private fun updateIfNotLatest(plugin: IdeaPluginDescriptor, host: String): PluginUpdateStatus {
if (plugin.version == PluginUtil.pluginVersion) {
return PluginUpdateStatus.LatestVersionInstalled
}
return PluginUpdateStatus.Update(plugin, host)
}

fun installPluginUpdate(update: PluginUpdateStatus.Update) {
val plugin = update.pluginDescriptor
val downloader = PluginDownloader.createDownloader(plugin, update.hostToInstallFrom, null)
ProgressManager.getInstance().run(
object : Task.Backgroundable(null, "Downloading plugin", true) {
override fun run(indicator: ProgressIndicator) {
try {
val status = downloader.prepareToInstall(indicator)
// If the download failed, quit
// But otherwise force the install
if (!status && McdevReflection.FIELD_PLUGIN_DOWNLOADER_MY_FILE.get(downloader) == null) {
return
}

downloader.install()

invokeLater {
PluginManagerMain.notifyPluginsUpdated(null)
}
} catch (e: IOException) {
e.printStackTrace()
}
}
},
)
}
}

/*
* Minecraft Development for IntelliJ
*
* https://mcdev.io/
*
* Copyright (C) 2026 minecraft-dev
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, version 3.0 only.
*
* 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/

package com.demonwav.mcdev.update

import com.demonwav.mcdev.util.McdevHttp
import com.demonwav.mcdev.util.McdevReflection
import com.demonwav.mcdev.util.forEachNotNull
import com.demonwav.mcdev.util.invokeLater
import com.intellij.ide.plugins.IdeaPluginDescriptor
import com.intellij.ide.plugins.PluginManagerCore
import com.intellij.ide.plugins.PluginManagerMain
import com.intellij.ide.plugins.PluginNode
import com.intellij.ide.plugins.RepositoryHelper
import com.intellij.openapi.application.ApplicationInfo
import com.intellij.openapi.application.ApplicationManager
import com.intellij.openapi.application.ModalityState
import com.intellij.openapi.progress.ProgressIndicator
import com.intellij.openapi.progress.ProgressManager
import com.intellij.openapi.progress.Task
import com.intellij.openapi.updateSettings.impl.PluginDownloader
import com.intellij.openapi.util.JDOMUtil
import com.intellij.openapi.util.SystemInfo
import java.io.IOException
import java.net.URLEncoder
import org.jdom.Element
import org.jdom.JDOMException

object PluginUpdater {
fun runUpdateCheck(callback: (PluginUpdateStatus) -> Boolean) {
ApplicationManager.getApplication().executeOnPooledThread { updateCheck(callback) }
}

// Custom update check to enable downgrading the plugin switching from nightly -> stable
private fun updateCheck(callback: (PluginUpdateStatus) -> Boolean) {
var updateStatus: PluginUpdateStatus
try {
updateStatus = checkUpdatesInMainRepo()

RepositoryHelper.getPluginHosts()
.forEachNotNull { updateStatus = updateStatus.mergeWith(checkUpdatesInCustomRepo(it)) }

val finalUpdate = updateStatus
ApplicationManager.getApplication().invokeLater({ callback(finalUpdate) }, ModalityState.any())
} catch (_: Exception) {
PluginUpdateStatus.CheckFailed("Minecraft Development plugin update check failed")
}
}

private fun checkUpdatesInMainRepo(): PluginUpdateStatus {
val buildNumber = ApplicationInfo.getInstance().build.asString()
val currentVersion = PluginUtil.pluginVersion
val os = URLEncoder.encode(SystemInfo.OS_NAME + " " + SystemInfo.OS_VERSION, Charsets.UTF_8)
val url =
"https://plugins.jetbrains.com/plugins/list?pluginId=8327&build=" +
"$buildNumber&pluginVersion=$currentVersion&os=$os"

val responseDoc = McdevHttp.request(url).connect<Element> { request ->
try {
return@connect JDOMUtil.load(request.inputStream)
} catch (e: JDOMException) {
e.printStackTrace()
}

null
} ?: return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response")

if (responseDoc.name != "plugin-repository") {
return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response")
}
if (responseDoc.children.isEmpty()) {
return PluginUpdateStatus.LatestVersionInstalled
}

val newVersion = responseDoc.getChild("category")?.getChild("idea-plugin")?.getChild("version")?.text
?: return PluginUpdateStatus.CheckFailed("Couldn't find plugin version in repository response")

val plugin = PluginManagerCore.getPlugin(PluginUtil.PLUGIN_ID)!!
val pluginNode = PluginNode(PluginUtil.PLUGIN_ID)
pluginNode.version = newVersion
pluginNode.name = plugin.name
pluginNode.description = plugin.description

if (pluginNode.version == PluginUtil.pluginVersion) {
return PluginUpdateStatus.LatestVersionInstalled
}

return PluginUpdateStatus.Update(pluginNode, null)
}

private fun checkUpdatesInCustomRepo(host: String): PluginUpdateStatus {
val plugins = try {
RepositoryHelper.loadPluginModels(host, null, null)
.map { it.getDescriptor() }
} catch (_: IOException) {
return PluginUpdateStatus.CheckFailed("Checking custom plugin repository $host failed")
}

val minecraftPlugin = plugins.firstOrNull { plugin -> plugin.pluginId == PluginUtil.PLUGIN_ID }
?: return PluginUpdateStatus.LatestVersionInstalled

return updateIfNotLatest(minecraftPlugin, host)
}

private fun updateIfNotLatest(plugin: IdeaPluginDescriptor, host: String): PluginUpdateStatus {
if (plugin.version == PluginUtil.pluginVersion) {
return PluginUpdateStatus.LatestVersionInstalled
}
return PluginUpdateStatus.Update(plugin, host)
}

fun installPluginUpdate(update: PluginUpdateStatus.Update) {
val plugin = update.pluginDescriptor
val downloader = PluginDownloader.createDownloader(plugin, update.hostToInstallFrom, null)
ProgressManager.getInstance().run(
object : Task.Backgroundable(null, "Downloading plugin", true) {
override fun run(indicator: ProgressIndicator) {
try {
val status = downloader.prepareToInstall(indicator)
// If the download failed, quit
// But otherwise force the install
if (!status && McdevReflection.FIELD_PLUGIN_DOWNLOADER_MY_FILE.get(downloader) == null) {
return
}

downloader.install()

invokeLater {
PluginManagerMain.notifyPluginsUpdated(null)
}
} catch (e: IOException) {
e.printStackTrace()
}
}
},
)
}
}

/* * Minecraft Development for IntelliJ * * https://mcdev.io/ * * Copyright (C) 2026 minecraft-dev * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation, version 3.0 only. * * 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 Lesser General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ package com.demonwav.mcdev.update import com.demonwav.mcdev.util.McdevReflection import com.demonwav.mcdev.util.forEachNotNull import com.demonwav.mcdev.util.invokeLater import com.intellij.ide.plugins.IdeaPluginDescriptor import com.intellij.ide.plugins.PluginManagerCore import com.intellij.ide.plugins.PluginManagerMain import com.intellij.ide.plugins.PluginNode import com.intellij.ide.plugins.RepositoryHelper import com.intellij.openapi.application.ApplicationInfo import com.intellij.openapi.application.ApplicationManager import com.intellij.openapi.application.ModalityState import com.intellij.openapi.progress.ProgressIndicator import com.intellij.openapi.progress.ProgressManager import com.intellij.openapi.progress.Task import com.intellij.openapi.updateSettings.impl.PluginDownloader import com.intellij.openapi.util.JDOMUtil import com.intellij.openapi.util.SystemInfo import com.intellij.util.io.HttpRequests import java.io.IOException import java.net.URLEncoder import org.jdom.Element import org.jdom.JDOMException object PluginUpdater { fun runUpdateCheck(callback: (PluginUpdateStatus) -> Boolean) { ApplicationManager.getApplication().executeOnPooledThread { updateCheck(callback) } } // Custom update check to enable downgrading the plugin switching from nightly -> stable private fun updateCheck(callback: (PluginUpdateStatus) -> Boolean) { var updateStatus: PluginUpdateStatus try { updateStatus = checkUpdatesInMainRepo() RepositoryHelper.getPluginHosts() .forEachNotNull { updateStatus = updateStatus.mergeWith(checkUpdatesInCustomRepo(it)) } val finalUpdate = updateStatus ApplicationManager.getApplication().invokeLater({ callback(finalUpdate) }, ModalityState.any()) } catch (_: Exception) { PluginUpdateStatus.CheckFailed("Minecraft Development plugin update check failed") } } private fun checkUpdatesInMainRepo(): PluginUpdateStatus { val buildNumber = ApplicationInfo.getInstance().build.asString() val currentVersion = PluginUtil.pluginVersion val os = URLEncoder.encode(SystemInfo.OS_NAME + " " + SystemInfo.OS_VERSION, Charsets.UTF_8) val url = "https://plugins.jetbrains.com/plugins/list?pluginId=8327&build=" + "$buildNumber&pluginVersion=$currentVersion&os=$os" val responseDoc = HttpRequests.request(url).connect<Element> { request -> try { return@connect JDOMUtil.load(request.inputStream) } catch (e: JDOMException) { e.printStackTrace() } null } ?: return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response") if (responseDoc.name != "plugin-repository") { return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response") } if (responseDoc.children.isEmpty()) { return PluginUpdateStatus.LatestVersionInstalled } val newVersion = responseDoc.getChild("category")?.getChild("idea-plugin")?.getChild("version")?.text ?: return PluginUpdateStatus.CheckFailed("Couldn't find plugin version in repository response") val plugin = PluginManagerCore.getPlugin(PluginUtil.PLUGIN_ID)!! val pluginNode = PluginNode(PluginUtil.PLUGIN_ID) pluginNode.version = newVersion pluginNode.name = plugin.name pluginNode.description = plugin.description if (pluginNode.version == PluginUtil.pluginVersion) { return PluginUpdateStatus.LatestVersionInstalled } return PluginUpdateStatus.Update(pluginNode, null) } private fun checkUpdatesInCustomRepo(host: String): PluginUpdateStatus { val plugins = try { RepositoryHelper.loadPluginModels(host, null, null) .map { it.getDescriptor() } } catch (_: IOException) { return PluginUpdateStatus.CheckFailed("Checking custom plugin repository $host failed") } val minecraftPlugin = plugins.firstOrNull { plugin -> plugin.pluginId == PluginUtil.PLUGIN_ID } ?: return PluginUpdateStatus.LatestVersionInstalled return updateIfNotLatest(minecraftPlugin, host) } private fun updateIfNotLatest(plugin: IdeaPluginDescriptor, host: String): PluginUpdateStatus { if (plugin.version == PluginUtil.pluginVersion) { return PluginUpdateStatus.LatestVersionInstalled } return PluginUpdateStatus.Update(plugin, host) } fun installPluginUpdate(update: PluginUpdateStatus.Update) { val plugin = update.pluginDescriptor val downloader = PluginDownloader.createDownloader(plugin, update.hostToInstallFrom, null) ProgressManager.getInstance().run( object : Task.Backgroundable(null, "Downloading plugin", true) { override fun run(indicator: ProgressIndicator) { try { val status = downloader.prepareToInstall(indicator) // If the download failed, quit // But otherwise force the install if (!status && McdevReflection.FIELD_PLUGIN_DOWNLOADER_MY_FILE.get(downloader) == null) { return } downloader.install() invokeLater { PluginManagerMain.notifyPluginsUpdated(null) } } catch (e: IOException) { e.printStackTrace() } } }, ) } } /* * Minecraft Development for IntelliJ * * https://mcdev.io/ * * Copyright (C) 2026 minecraft-dev * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published * by the Free Software Foundation, version 3.0 only. * * 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 Lesser General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ package com.demonwav.mcdev.update import com.demonwav.mcdev.util.McdevHttp import com.demonwav.mcdev.util.McdevReflection import com.demonwav.mcdev.util.forEachNotNull import com.demonwav.mcdev.util.invokeLater import com.intellij.ide.plugins.IdeaPluginDescriptor import com.intellij.ide.plugins.PluginManagerCore import com.intellij.ide.plugins.PluginManagerMain import com.intellij.ide.plugins.PluginNode import com.intellij.ide.plugins.RepositoryHelper import com.intellij.openapi.application.ApplicationInfo import com.intellij.openapi.application.ApplicationManager import com.intellij.openapi.application.ModalityState import com.intellij.openapi.progress.ProgressIndicator import com.intellij.openapi.progress.ProgressManager import com.intellij.openapi.progress.Task import com.intellij.openapi.updateSettings.impl.PluginDownloader import com.intellij.openapi.util.JDOMUtil import com.intellij.openapi.util.SystemInfo import java.io.IOException import java.net.URLEncoder import org.jdom.Element import org.jdom.JDOMException object PluginUpdater { fun runUpdateCheck(callback: (PluginUpdateStatus) -> Boolean) { ApplicationManager.getApplication().executeOnPooledThread { updateCheck(callback) } } // Custom update check to enable downgrading the plugin switching from nightly -> stable private fun updateCheck(callback: (PluginUpdateStatus) -> Boolean) { var updateStatus: PluginUpdateStatus try { updateStatus = checkUpdatesInMainRepo() RepositoryHelper.getPluginHosts() .forEachNotNull { updateStatus = updateStatus.mergeWith(checkUpdatesInCustomRepo(it)) } val finalUpdate = updateStatus ApplicationManager.getApplication().invokeLater({ callback(finalUpdate) }, ModalityState.any()) } catch (_: Exception) { PluginUpdateStatus.CheckFailed("Minecraft Development plugin update check failed") } } private fun checkUpdatesInMainRepo(): PluginUpdateStatus { val buildNumber = ApplicationInfo.getInstance().build.asString() val currentVersion = PluginUtil.pluginVersion val os = URLEncoder.encode(SystemInfo.OS_NAME + " " + SystemInfo.OS_VERSION, Charsets.UTF_8) val url = "https://plugins.jetbrains.com/plugins/list?pluginId=8327&build=" + "$buildNumber&pluginVersion=$currentVersion&os=$os" val responseDoc = McdevHttp.request(url).connect<Element> { request -> try { return@connect JDOMUtil.load(request.inputStream) } catch (e: JDOMException) { e.printStackTrace() } null } ?: return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response") if (responseDoc.name != "plugin-repository") { return PluginUpdateStatus.CheckFailed("Unexpected plugin repository response") } if (responseDoc.children.isEmpty()) { return PluginUpdateStatus.LatestVersionInstalled } val newVersion = responseDoc.getChild("category")?.getChild("idea-plugin")?.getChild("version")?.text ?: return PluginUpdateStatus.CheckFailed("Couldn't find plugin version in repository response") val plugin = PluginManagerCore.getPlugin(PluginUtil.PLUGIN_ID)!! val pluginNode = PluginNode(PluginUtil.PLUGIN_ID) pluginNode.version = newVersion pluginNode.name = plugin.name pluginNode.description = plugin.description if (pluginNode.version == PluginUtil.pluginVersion) { return PluginUpdateStatus.LatestVersionInstalled } return PluginUpdateStatus.Update(pluginNode, null) } private fun checkUpdatesInCustomRepo(host: String): PluginUpdateStatus { val plugins = try { RepositoryHelper.loadPluginModels(host, null, null) .map { it.getDescriptor() } } catch (_: IOException) { return PluginUpdateStatus.CheckFailed("Checking custom plugin repository $host failed") } val minecraftPlugin = plugins.firstOrNull { plugin -> plugin.pluginId == PluginUtil.PLUGIN_ID } ?: return PluginUpdateStatus.LatestVersionInstalled return updateIfNotLatest(minecraftPlugin, host) } private fun updateIfNotLatest(plugin: IdeaPluginDescriptor, host: String): PluginUpdateStatus { if (plugin.version == PluginUtil.pluginVersion) { return PluginUpdateStatus.LatestVersionInstalled } return PluginUpdateStatus.Update(plugin, host) } fun installPluginUpdate(update: PluginUpdateStatus.Update) { val plugin = update.pluginDescriptor val downloader = PluginDownloader.createDownloader(plugin, update.hostToInstallFrom, null) ProgressManager.getInstance().run( object : Task.Backgroundable(null, "Downloading plugin", true) { override fun run(indicator: ProgressIndicator) { try { val status = downloader.prepareToInstall(indicator) // If the download failed, quit // But otherwise force the install if (!status && McdevReflection.FIELD_PLUGIN_DOWNLOADER_MY_FILE.get(downloader) == null) { return } downloader.install() invokeLater { PluginManagerMain.notifyPluginsUpdated(null) } } catch (e: IOException) { e.printStackTrace() } } }, ) } }

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