Release first version

ci: Remove redundant CI jobs
All those checks should be executed by `cargo-checkmate` anyway.
2022-04-24 18:28:13 +02:00 · 2022-04-24 18:28:13 +02:00 · 2022-04-24 18:28:13 +02:00 · 2022-04-24 18:28:13 +02:00 · 2022-04-24 17:59:06 +02:00 · 2022-04-24 17:33:09 +02:00
7 changed files with 967 additions and 33 deletions
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@ -1,30 +1,18 @@
 pipeline:
-  fmt:
+  checkmate:
    group: default
    image: rust_full
    commands:
-      - cargo fmt --all -- --check
-
-  clippy:
-    group: default
-    image: rust_full
-    commands:
-      - cargo clippy --all-features
-
-  doc:
-    group: default
-    image: rust_full
-    commands:
-      - cargo doc --all-features
-
-  build:
-    group: default
-    image: rust_full
-    commands:
-      - cargo build --all-features
+      - cargo checkmate

  build_release:
-    group: release
+    group: default
    image: rust_full
    commands:
      - cargo build --all-features --release
+
+  build_deb:
+    group: default
+    image: rust_full
+    commands:
+      - cargo deb
--- a/Cargo.lock
+++ b/Cargo.lock
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 checksum = "08f9b8508dccb7687a1d6c4ce66b2b0ecef467c94667de27d8d7fe1f8d2a9cdc"

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+checksum = "ed6aa3524a2dfcf9fe180c51eae2b58738348d819517ceadf95789c51fff7600"
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+ "quote",
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+dependencies = [
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+ "libc",
+ "winapi",
+]
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 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"

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+ "itoa",
+ "matchit",
+ "memchr",
+ "mime",
+ "percent-encoding",
+ "pin-project-lite",
+ "serde",
+ "serde_json",
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+ "sync_wrapper",
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@ -88,6 +380,15 @@ dependencies = [
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@ -106,6 +407,18 @@ dependencies = [
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+
+[[package]]
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+checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
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+dependencies = [
+ "libc",
+ "mio",
+ "num_cpus",
+ "pin-project-lite",
+ "socket2",
+ "tokio-macros",
+ "winapi",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
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+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0edfdeb067411dba2044da6d1cb2df793dd35add7888d73c16e3381ded401764"
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+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
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+ "futures-core",
+ "futures-util",
+ "pin-project",
+ "pin-project-lite",
+ "tokio",
+ "tokio-util",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
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+checksum = "aba3f3efabf7fb41fae8534fc20a817013dd1c12cb45441efb6c82e6556b4cd8"
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+ "bitflags",
+ "bytes",
+ "futures-core",
+ "futures-util",
+ "http",
+ "http-body",
+ "http-range-header",
+ "pin-project-lite",
+ "tower",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
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+version = "0.3.1"
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+checksum = "343bc9466d3fe6b0f960ef45960509f84480bf4fd96f92901afe7ff3df9d3a62"
+
+[[package]]
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+checksum = "360dfd1d6d30e05fda32ace2c8c70e9c0a9da713275777f5a4dbb8a1893930c6"
+
+[[package]]
+name = "tracing"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d0ecdcb44a79f0fe9844f0c4f33a342cbcbb5117de8001e6ba0dc2351327d09"
+dependencies = [
+ "cfg-if",
+ "log",
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f54c8ca710e81886d498c2fd3331b56c93aa248d49de2222ad2742247c60072f"
+dependencies = [
+ "lazy_static",
+]
+
+[[package]]
+name = "try-lock"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
+name = "want"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
+dependencies = [
+ "log",
+ "try-lock",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@ -198,6 +875,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"

+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@ -1,8 +1,10 @@
 [package]
 name = "mightyohm-gc-exporter"
-version = "0.1.0-dev"
+version = "0.1.0"
+authors = ["finga <finga@onders.org>"]
 edition = "2021"
-description = "Prometheus exporter for the MightyOhm Geiger Counter"
+description = "Prometheus exporter for the MightyOhm Geiger Counter."
+readme = "README.md"
 license = "GPL-3.0-or-later"
 repository = "https://git.onders.org/finga/mightyohm-gc-exporter"
 keywords = ["prometheus", "metrics"]
@ -11,3 +13,19 @@ categories = ["api-bindings", "command-line-utilities", "visualization"]
 [dependencies]
 anyhow = "1.0"
 serialport = "4.1"
+log = "0.4"
+env_logger = "0.9"
+tokio = { version = "1.17", features = ["rt-multi-thread", "macros"] }
+axum = "0.5"
+clap = { version = "3.1", features = ["derive"] }
+
+[package.metadata.deb]
+extended-description = "Prometheus exporter for the MightyOhm Geiger Counter."
+section = "utility"
+maintainer-scripts = "debian/"
+systemd-units = { enable = true }
+assets = [
+    ["target/release/mightyohm-gc-exporter", "usr/bin/", "755"],
+    ["README.md", "usr/share/doc/mightyohm-gc-exporter/README", "644"],
+    ["debian/default", "etc/default/mightyohm-gc-exporter", "644"],
+]
--- a/README.md
+++ b/README.md
@ -2,14 +2,53 @@
 A Prometheus exporter for the [MightyOhm Geiger Counter](https://mightyohm.com/blog/products/geiger-counter/).

 ## Build
+Cargo, the Rust package manager, is used to build this project.
+
 ### Same architecture as system
-To compile it for the same architecture as the build system:
+Compile it for the same architecture as the build system:
 ```sh
 cargo build --release
 ```

-### Cross-compile for aarch64 (recent RaspberryPi)
-To cross-compile it for RaspberryPi:
+### Cross-compile for amd64 (recent RaspberryPi)
+Cross-compile it for the amd64 architecture:
 ```sh
 PKG_CONFIG_SYSROOT_DIR=/usr/aarch64-linux-gnu cargo build --target aarch64-unknown-linux-gnu --release
 ```
+
+## Debian
+To build a package for Debian, Raspbian, and so on,
+[`cargo-deb`](https://crates.io/crates/cargo-deb) can be used.
+
+The package comes with an automatically started and enabled systemd
+service unit which can be configured via
+`/etc/default/mightyohm-gc-exporter`.
+
+### Same architecture as system
+Build a `deb` package for the same architecture as the build system:
+```sh
+cargo deb
+```
+
+### Cross-compile for amd64 (recent RaspberryPi)
+Build a `deb` package for the amd64 architecture:
+```sh
+PKG_CONFIG_SYSROOT_DIR=/usr/aarch64-linux-gnu cargo deb --target aarch64-unknown-linux-gnu
+```
+
+## Usage
+```
+USAGE:
+    mightyohm-gc-exporter [OPTIONS]
+
+OPTIONS:
+    -a, --address <ADDRESS>            The IPv4 or IPv6 address where the metrics are served
+                                       [default: 127.0.0.1]
+    -b, --baud-rate <BAUD_RATE>        The baudrate of the serial connection [default: 9600]
+    -h, --help                         Print help information
+    -p, --port <PORT>                  The port where the metrics are served [default: 9111]
+    -s, --serial-port <SERIAL_PORT>    The port of the serial device, usually in '/dev/...'
+                                       [default: /dev/serial0]
+    -t, --timeout <TIMEOUT>            Timeout of the serial connection in ms [default: 1000]
+    -V, --version                      Print version information
+```
--- a/debian/default
+++ b/debian/default
@ -0,0 +1,10 @@
+ARGS=""
+
+# mightyohm-gc-exporter supports the following options:
+#  -a, --address <ADDRESS>            The IPv4 or IPv6 address where the metrics are served
+#                                     [default: 127.0.0.1]
+#  -b, --baud-rate <BAUD_RATE>        The baudrate of the serial connection [default: 9600]
+#  -p, --port <PORT>                  The port where the metrics are served [default: 9111]
+#  -s, --serial-port <SERIAL_PORT>    The port of the serial device, usually in '/dev/...'
+#                                     [default: /dev/serial0]
+#  -t, --timeout <TIMEOUT>            Timeout of the serial connection in ms [default: 1000]
--- a/debian/service
+++ b/debian/service
@ -0,0 +1,11 @@
+[Unit]
+Description=MightyOhm Geiger Counter exporter
+
+[Service]
+Group=dialout
+Restart=always
+EnvironmentFile=/etc/default/mightyohm-gc-exporter
+ExecStart=/usr/bin/mightyohm-gc-exporter $ARGS
+
+[Install]
+WantedBy=multi-user.target
--- a/src/main.rs
+++ b/src/main.rs
@ -1,21 +1,203 @@
-use anyhow::Result;
+use anyhow::{bail, Error, Result};
+use axum::{extract::Extension, routing::get, Router, Server};
+use clap::Parser;
+use log::{debug, info, trace};
 use std::{
    io::{BufRead, BufReader},
+    net::{IpAddr, SocketAddr},
+    str::FromStr,
+    sync::{
+        atomic::{AtomicU32, AtomicUsize, Ordering},
+        Arc,
+    },
    time::Duration,
 };
+use tokio::{spawn, task::JoinHandle, try_join};

-fn main() -> Result<()> {
-    let port_name = "/dev/serial0";
-    let baud_rate = 9600;
+#[derive(Parser)]
+#[clap(
+    about,
+    version,
+    author,
+    infer_subcommands(true),
+    propagate_version(true)
+)]
+struct Args {
+    /// The port of the serial device, usually in '/dev/...'.
+    #[clap(short, long, default_value = "/dev/serial0")]
+    serial_port: String,
+    /// The baudrate of the serial connection.
+    #[clap(short, long, default_value = "9600")]
+    baud_rate: u32,
+    /// Timeout of the serial connection in ms.
+    #[clap(short, long, default_value = "1000")]
+    timeout: u64,
+    /// The IPv4 or IPv6 address where the metrics are served.
+    #[clap(short, long, default_value = "127.0.0.1")]
+    address: IpAddr,
+    /// The port where the metrics are served.
+    #[clap(short, long, default_value = "9111")]
+    port: u16,
+}

+#[derive(Default)]
+struct AtomicF32 {
+    storage: AtomicU32,
+}
+
+impl AtomicF32 {
+    fn store(&self, value: f32, ordering: Ordering) {
+        let as_u32 = value.to_bits();
+        self.storage.store(as_u32, ordering);
+    }
+
+    fn load(&self, ordering: Ordering) -> f32 {
+        let as_u32 = self.storage.load(ordering);
+        f32::from_bits(as_u32)
+    }
+}
+
+#[derive(Debug)]
+enum Speed {
+    Slow = 0,
+    Fast,
+    Inst,
+}
+
+impl FromStr for Speed {
+    type Err = Error;
+
+    fn from_str(s: &str) -> Result<Self> {
+        match s {
+            "SLOW" => Ok(Self::Slow),
+            "FAST" => Ok(Self::Fast),
+            "INST" => Ok(Self::Inst),
+            _ => bail!("Could not parse speed"),
+        }
+    }
+}
+
+#[derive(Default)]
+struct Metrics {
+    cps: AtomicUsize,
+    cpm: AtomicUsize,
+    radiation: AtomicF32,
+    mode: AtomicUsize,
+}
+
+fn parse(input: &str) -> Result<(usize, usize, f32, Speed)> {
+    let input = input
+        .replace("CPS, ", "")
+        .replace(", CPM, ", " ")
+        .replace(", uSv/hr, ", " ")
+        .replace(", ", " ");
+    let input: Vec<&str> = input.split(' ').collect();
+
+    trace!(
+        "Parsed values: cps = {}, cpm = {}, μSv/h = {}, mode = {:?}",
+        input[0],
+        input[1],
+        input[2],
+        input[3]
+    );
+
+    Ok((
+        input[0].parse::<usize>()?,
+        input[1].parse::<usize>()?,
+        input[2].parse::<f32>()?,
+        input[3].parse::<Speed>()?,
+    ))
+}
+
+#[allow(clippy::unused_async, clippy::similar_names)]
+async fn listen_serial(
+    port_name: String,
+    baud_rate: u32,
+    timeout: u64,
+    metrics: Arc<Metrics>,
+) -> Result<()> {
    let port = serialport::new(port_name, baud_rate)
-        .timeout(Duration::from_millis(1000))
+        .timeout(Duration::from_millis(timeout))
        .open()?;

    let mut port = BufReader::new(port);
    loop {
        let mut line = String::new();
        port.read_line(&mut line)?;
-        println!("{:?}", line);
+        let line = line.trim();
+        debug!("Reading line from serial port: {}", line);
+        let (cps, cpm, radiation, mode) = parse(line)?;
+
+        metrics.cps.store(cps, Ordering::Relaxed);
+        metrics.cpm.store(cpm, Ordering::Relaxed);
+        metrics.radiation.store(radiation, Ordering::Relaxed);
+        metrics.mode.store(mode as usize, Ordering::Relaxed);
    }
 }
+
+#[allow(clippy::unused_async)]
+async fn get_metrics(Extension(metrics): Extension<Arc<Metrics>>) -> String {
+    format!(
+        r"# HELP mightyohm_gc_cps Counts per second.
+# TYPE mightyohm_gc_cps gauge
+mightyohm_gc_cps {}
+# HELP mightyohm_gc_cpm Counts per minute.
+# TYPE mightyohm_gc_cpm gauge
+mightyohm_gc_cpm {}
+# HELP mightyohm_gc_radiation Ionizing Radiation in μSv/h.
+# TYPE mightyohm_gc_radiation gauge
+mightyohm_gc_radiation {}
+# HELP mightyohm_gc_mode Data acquisition mode (0 = Slow, 1 = Fast, 2 = Inst).
+# TYPE mightyohm_gc_mode gauge
+mightyohm_gc_mode {}
+",
+        metrics.cps.load(Ordering::Relaxed),
+        metrics.cpm.load(Ordering::Relaxed),
+        metrics.radiation.load(Ordering::Relaxed),
+        metrics.mode.load(Ordering::Relaxed)
+    )
+}
+
+async fn listen_http(address: IpAddr, port: u16, metrics: Arc<Metrics>) -> Result<()> {
+    let app = Router::new()
+        .route("/metrics", get(get_metrics))
+        .layer(Extension(metrics));
+    let addr = SocketAddr::from((address, port));
+    info!("Listening on {}:{}", address, port);
+
+    Ok(Server::bind(&addr).serve(app.into_make_service()).await?)
+}
+
+async fn flatten<T>(handle: JoinHandle<Result<T>>) -> Result<T>
+where
+    T: Send,
+{
+    match handle.await {
+        Ok(Ok(result)) => Ok(result),
+        Ok(Err(err)) => bail!(err),
+        Err(err) => bail!(err),
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::init();
+    let args = Args::parse();
+    let metrics = Arc::new(Metrics::default());
+
+    try_join!(
+        flatten(spawn(listen_serial(
+            args.serial_port,
+            args.baud_rate,
+            args.timeout,
+            Arc::clone(&metrics)
+        ))),
+        flatten(spawn(listen_http(
+            args.address,
+            args.port,
+            Arc::clone(&metrics)
+        )))
+    )?;
+
+    Ok(())
+}
Author	SHA1	Message	Date
finga	54abe207e0	Release first version All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details ci/woodpecker/tag/woodpecker Pipeline was successful Details	2022-04-24 18:28:13 +02:00
finga	bd27a6433b	ci: Remove redundant CI jobs All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details All those checks should be executed by `cargo-checkmate` anyway.	2022-04-24 18:28:13 +02:00
finga	33b64209b0	ci: Also build a Debian package with `cargo-deb` All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details	2022-04-24 18:28:13 +02:00
finga	599e6b692d	Extend `Cargo.toml` and `Readme.md` All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details	2022-04-24 18:28:13 +02:00
finga	e156d5958b	ci: Move `build_release` into default group All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details	2022-04-24 17:59:06 +02:00
finga	4396b9eca4	Use `cargo-deb` to build a Debian package All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details This ships also a systemd service unit and a config file for `/etc/default`	2022-04-24 17:33:09 +02:00
finga	ccb05e9b02	In CI pipeline also run `cargo checkmate` All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details	2022-04-24 17:31:44 +02:00
finga	bd0dce1bce	Add command line arguments All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details To not rely on hardcoded values introduce command line arguments.	2022-04-23 23:24:38 +02:00
finga	b20ed73290	Also listen for http requests and serve metrics All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details Use axum to listen for http requests to respond with the metrics.	2022-04-23 21:02:56 +02:00
finga	52f1452613	Store actual result All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details Use atomics to store the actual result.	2022-04-23 21:02:35 +02:00
finga	e820273c89	Read asynchronous from serial All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details Use tokio to read asynchronous from serial port.	2022-04-23 21:01:51 +02:00
finga	1d5f5fd0f3	Add logging All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details Print some somewhat usefull log messages.	2022-04-23 20:31:57 +02:00
finga	ef00bffabe	Parse serial input All checks were successful ci/woodpecker/push/woodpecker Pipeline was successful Details	2022-04-23 01:42:09 +02:00