commit a1dcd606d9d2c2545d726f1f25a7336a4c50504e
Author: finga <finga@onders.org>
Date:   Thu Apr 21 20:40:52 2022 +0200

    Read from hardcoded serial port

diff --git a/.cargo/config b/.cargo/config
new file mode 100644
index 0000000..199c867
--- /dev/null
+++ b/.cargo/config
@@ -0,0 +1,13 @@
+[target.'cfg(feature = "cargo-clippy")']
+rustflags = [
+    "-Dwarnings",
+    "-Dclippy::pedantic",
+    "-Dclippy::nursery",
+    "-Dclippy::cargo",
+]
+
+[target.armv7-unknown-linux-gnueabihf]
+linker = "arm-linux-gnueabihf-gcc"
+
+[target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/.woodpecker.yml b/.woodpecker.yml
new file mode 100644
index 0000000..c037259
--- /dev/null
+++ b/.woodpecker.yml
@@ -0,0 +1,30 @@
+pipeline:
+  fmt:
+    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
+
+  build_release:
+    group: release
+    image: rust_full
+    commands:
+      - cargo build --all-features --release
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..ab9d474
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,198 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "CoreFoundation-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0e9889e6db118d49d88d84728d0e964d973a5680befb5f85f55141beea5c20b"
+dependencies = [
+ "libc",
+ "mach 0.1.2",
+]
+
+[[package]]
+name = "IOKit-sys"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99696c398cbaf669d2368076bdb3d627fb0ce51a26899d7c61228c5c0af3bf4a"
+dependencies = [
+ "CoreFoundation-sys",
+ "libc",
+ "mach 0.1.2",
+]
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "libc"
+version = "0.2.124"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
+
+[[package]]
+name = "libudev"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78b324152da65df7bb95acfcaab55e3097ceaab02fb19b228a9eb74d55f135e0"
+dependencies = [
+ "libc",
+ "libudev-sys",
+]
+
+[[package]]
+name = "libudev-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c8469b4a23b962c1396b9b451dda50ef5b283e8dd309d69033475fa9b334324"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
+[[package]]
+name = "mach"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fd13ee2dd61cc82833ba05ade5a30bb3d63f7ced605ef827063c63078302de9"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "mach"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "mightyohm-gc-exporter"
+version = "0.1.0-dev"
+dependencies = [
+ "serialport",
+]
+
+[[package]]
+name = "nix"
+version = "0.23.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f866317acbd3a240710c63f065ffb1e4fd466259045ccb504130b7f668f35c6"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
+[[package]]
+name = "pkg-config"
+version = "0.3.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
+
+[[package]]
+name = "regex"
+version = "1.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a11647b6b25ff05a515cb92c365cec08801e83423a235b51e231e1808747286"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "serialport"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fc52fd78198e211d0e39928cbca339da52f679f4a964cdf335b33fc1855f63f"
+dependencies = [
+ "CoreFoundation-sys",
+ "IOKit-sys",
+ "bitflags",
+ "cfg-if",
+ "libudev",
+ "mach 0.3.2",
+ "nix",
+ "regex",
+ "winapi",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..d46d6a9
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "mightyohm-gc-exporter"
+version = "0.1.0-dev"
+edition = "2021"
+description = "Prometheus exporter for the MightyOhm Geiger Counter"
+license = "GPL-3.0-or-later"
+repository = "https://git.onders.org/finga/mightyohm-gc-exporter"
+keywords = ["prometheus", "metrics"]
+categories = ["api-bindings", "command-line-utilities", "visualization"]
+
+[dependencies]
+serialport = "4.1"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..35264c1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,15 @@
+# Exporter for the MightyOhm Geiger Counter [![status-badge](https://ci.onders.org/api/badges/finga/mightyohm-gc-exporter/status.svg)](https://ci.onders.org/finga/mightyohm-gc-exporter)
+A Prometheus exporter for the [MightyOhm Geiger Counter](https://mightyohm.com/blog/products/geiger-counter/).
+
+## Build
+### Same architecture as system
+To 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:
+```sh
+PKG_CONFIG_SYSROOT_DIR=/usr/aarch64-linux-gnu cargo build --target aarch64-unknown-linux-gnu --release
+```
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..fdcda0a
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,34 @@
+use std::{
+    io::{self, Write},
+    time::Duration,
+};
+
+fn main() {
+    let port_name = "/dev/serial0";
+    let baud_rate = 9600;
+
+    let port = serialport::new(port_name, baud_rate)
+        .timeout(Duration::from_millis(100))
+        .open();
+
+    match port {
+        Ok(mut port) => {
+            let mut serial_buf: Vec<u8> = vec![0; 1000];
+            println!("Receiving data on {} at {} baud:", &port_name, &baud_rate);
+            loop {
+                match port.read(serial_buf.as_mut_slice()) {
+                    Ok(t) => io::stdout().write_all(&serial_buf[..t]).unwrap(),
+                    Err(ref e) if e.kind() == io::ErrorKind::TimedOut => (),
+                    Err(e) => {
+                        eprintln!("Failed to read \"{}\". Error: {}", port_name, e);
+                        ::std::process::exit(1);
+                    }
+                }
+            }
+        }
+        Err(e) => {
+            eprintln!("Failed to open \"{}\". Error: {}", port_name, e);
+            ::std::process::exit(1);
+        }
+    }
+}