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def waitJitpack(group, module, hash) { | |
preBuild.dependsOn(tasks.create(name: "waitJitpack-${module}-${hash}") { thisTask -> | |
def url = "https://jitpack.io/${group.replace('.', '/')}/${module}/${hash}/${module}-${hash}.pom" | |
def backoffLimit = 7 | |
for (def backoffCount : (0..backoffLimit)) { | |
def connection = new URL(url).openConnection() as HttpURLConnection | |
def timeout = (2**backoffCount) * 5 * 1000; // exponential timeout | |
connection.setConnectTimeout(timeout) | |
connection.setReadTimeout(timeout) | |
connection.setRequestMethod("HEAD"); | |
connection.setInstanceFollowRedirects(true) | |
try { | |
def responseCode = connection.getResponseCode(); | |
if (responseCode >= 200 && responseCode <= 299) { | |
// success. Just bail | |
return | |
} else { | |
def responseMessage = connection.getResponseCode(); | |
throw new RuntimeException("Failed reaching Jitpack for ${group}:${module}:${hash}: ${responseMessage}") | |
} | |
} catch (SocketTimeoutException ignored) { | |
if (backoffCount == backoffLimit) { | |
throw new Exception("Exhausted waiting for Jipack on ${group}:${module}:${hash}") | |
} | |
println "Retrying JitPack ${backoffCount+1}/${backoffLimit+1} for ${group}:${module}:${hash}" | |
} catch (Exception e) { | |
throw e | |
} | |
} | |
}) | |
return "${group}:${module}:${hash}" | |
} | |
ext { | |
waitJitpack = this.&waitJitpack | |
} |
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