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| 1 | +package bloop.cli.integration |
| 2 | + |
| 3 | +import java.net.{StandardProtocolFamily, UnixDomainSocketAddress} |
| 4 | +import java.nio.channels.SocketChannel |
| 5 | +import java.nio.charset.StandardCharsets |
| 6 | +import java.nio.ByteBuffer |
| 7 | + |
| 8 | +class BspTests extends munit.FunSuite { |
| 9 | + |
| 10 | + test("no JSON junk in errors") { |
| 11 | + TmpDir.fromTmpDir { root => |
| 12 | + val dirArgs = Seq[os.Shellable]("--daemon-dir", root / "daemon") |
| 13 | + val bspFile = root / "bsp-socket" |
| 14 | + |
| 15 | + val dummyMsg = |
| 16 | + """{ |
| 17 | + | "jsonrpc": "2.0", |
| 18 | + | "method": "workspace/buildTargetz", |
| 19 | + | "params": null, |
| 20 | + | "id": 2 |
| 21 | + |}""".stripMargin |
| 22 | + |
| 23 | + var bspProc: os.SubProcess = null |
| 24 | + var socket: SocketChannel = null |
| 25 | + |
| 26 | + try { |
| 27 | + os.proc(Launcher.launcher, dirArgs, "about") |
| 28 | + .call(cwd = root, stdin = os.Inherit, stdout = os.Inherit, env = Launcher.extraEnv) |
| 29 | + |
| 30 | + bspProc = |
| 31 | + os.proc(Launcher.launcher, dirArgs, "bsp", "--protocol", "local", "--socket", bspFile) |
| 32 | + .spawn(cwd = root, stdin = os.Inherit, stdout = os.Inherit) |
| 33 | + |
| 34 | + val addr = UnixDomainSocketAddress.of(bspFile.toNIO) |
| 35 | + var connected = false |
| 36 | + var attemptCount = 0 |
| 37 | + |
| 38 | + while (!connected && bspProc.isAlive() && attemptCount < 10) { |
| 39 | + if (attemptCount > 0) |
| 40 | + Thread.sleep(1000L) |
| 41 | + attemptCount += 1 |
| 42 | + |
| 43 | + if (os.exists(bspFile)) { |
| 44 | + socket = SocketChannel.open(StandardProtocolFamily.UNIX) |
| 45 | + socket.connect(addr) |
| 46 | + socket.finishConnect() |
| 47 | + connected = true |
| 48 | + } |
| 49 | + } |
| 50 | + |
| 51 | + if (!connected) |
| 52 | + sys.error("Not connected to Bloop server via BSP :|") |
| 53 | + |
| 54 | + def sendMsg(msg: String): Unit = { |
| 55 | + val bytes = msg.getBytes(StandardCharsets.UTF_8) |
| 56 | + |
| 57 | + def doWrite(buf: ByteBuffer): Unit = |
| 58 | + if (buf.position() < buf.limit()) { |
| 59 | + val written = socket.write(buf) |
| 60 | + if (written == 0) |
| 61 | + Thread.sleep(100L) |
| 62 | + doWrite(buf) |
| 63 | + } |
| 64 | + |
| 65 | + doWrite(ByteBuffer.wrap( |
| 66 | + (s"Content-Length: ${bytes.length}" + "\r\n\r\n").getBytes(StandardCharsets.UTF_8) |
| 67 | + )) |
| 68 | + doWrite(ByteBuffer.wrap(bytes)) |
| 69 | + } |
| 70 | + |
| 71 | + sendMsg(dummyMsg) |
| 72 | + |
| 73 | + val arr = Array.ofDim[Byte](10 * 1024) |
| 74 | + val buf = ByteBuffer.wrap(arr) |
| 75 | + |
| 76 | + // seems to do the job… |
| 77 | + def doRead(buf: ByteBuffer, count: Int): Int = { |
| 78 | + val read = socket.read(buf) |
| 79 | + if (read <= 0 && count < 100) { |
| 80 | + Thread.sleep(100L) |
| 81 | + doRead(buf, count + 1) |
| 82 | + } |
| 83 | + else |
| 84 | + read |
| 85 | + } |
| 86 | + |
| 87 | + val read = doRead(buf, 0) |
| 88 | + assert(read > 0) |
| 89 | + |
| 90 | + val resp = new String(arr, 0, read, StandardCharsets.UTF_8) |
| 91 | + |
| 92 | + def validateJson(content: String): Boolean = { |
| 93 | + assert(content.startsWith("{")) |
| 94 | + assert(content.endsWith("}")) |
| 95 | + val chars = content.toCharArray |
| 96 | + val objCount = Array.ofDim[Int](chars.length) |
| 97 | + for (i <- 0 until chars.length) { |
| 98 | + val previous = if (i == 0) 0 else objCount(i - 1) |
| 99 | + val count = previous + (if (chars(i) == '{') 1 else if (chars(i) == '}') -1 else 0) |
| 100 | + objCount(i) = count |
| 101 | + } |
| 102 | + objCount.dropRight(1).forall(_ > 0) |
| 103 | + } |
| 104 | + |
| 105 | + resp.linesWithSeparators.toVector match { |
| 106 | + case Seq(cl, empty, other @ _*) |
| 107 | + if cl.startsWith("Content-Length:") && empty.trim.isEmpty => |
| 108 | + val json = other.mkString |
| 109 | + val validated = validateJson(json) |
| 110 | + if (!validated) |
| 111 | + pprint.err.log(json) |
| 112 | + assert(validated, "Unexpected JSON response shape") |
| 113 | + case _ => |
| 114 | + pprint.err.log(resp) |
| 115 | + sys.error("Unexpected response shape") |
| 116 | + } |
| 117 | + } |
| 118 | + finally { |
| 119 | + if (socket != null) |
| 120 | + socket.close() |
| 121 | + |
| 122 | + if (bspProc != null) { |
| 123 | + bspProc.waitFor(1000L) |
| 124 | + if (bspProc.isAlive()) |
| 125 | + bspProc.close() |
| 126 | + |
| 127 | + os.proc(Launcher.launcher, dirArgs, "exit") |
| 128 | + .call(cwd = root, stdin = os.Inherit, stdout = os.Inherit, check = false) |
| 129 | + } |
| 130 | + } |
| 131 | + } |
| 132 | + } |
| 133 | + |
| 134 | +} |
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