Replace udev-rs libudev bindings with native Rust udev

.github/workflows/build.yml

@@ -21,9 +21,13 @@ jobs:
       fail-fast: false
       matrix:
         job:
-          - { os: ubuntu-latest, target: aarch64-unknown-linux-gnu, use-cross: true, feature-flags: "--all-features" }
+          # only default as don't generate docs or hwdb
+          - { os: ubuntu-latest, target: aarch64-unknown-linux-gnu, use-cross: true, feature-flags: "" }
+          # all ok as udev ignored on non-linux
           - { os: ubuntu-latest, target: x86_64-pc-windows-gnu, use-cross: true, feature-flags: "--all-features"  }
-          - { os: ubuntu-latest, target: x86_64-unknown-linux-gnu, use-cross: false, feature-flags: "--all-features"  }
+          # specificy to avoid udevlib
+          - { os: ubuntu-latest, target: x86_64-unknown-linux-gnu, use-cross: false, feature-flags: "-F=cli_generate"  }
+          # all ok as udev ignored on non-linux
           - { os: macos-latest, target: universal-apple-darwin, use-cross: false, feature-flags: "--all-features"  }
     steps:
       - uses: actions/checkout@v4

CHANGELOG.md

@@ -2,7 +2,13 @@
 
 ## [Unreleased]
 
-- Working on full dumps of device descriptors ([#15](https://github.com/tuna-f1sh/cyme/issues/15))
+### Addded
+
+- Full dumps of device descriptors for matching `--lsusb --verbose` ([#15](https://github.com/tuna-f1sh/cyme/issues/15))
+
+### Changed
+
+- Replace [udev-rs](https://github.com/Smithay/udev-rs) and indirectly libudev-sys with Rust native [udev](https://github.com/cr8t/udev); libudev dependency (and system requirement) is now optional but can be used with `--no-default-features -F=udevlib`. ([#19](https://github.com/tuna-f1sh/cyme/pull/19))
 
 ## [1.6.1] - 2024-13-06
 

Cargo.toml

@@ -5,7 +5,7 @@ description = "List system USB buses and devices; a modern cross-platform `lsusb
 repository = "https://github.com/tuna-f1sh/cyme"
 readme = "README.md"
 license = "GPL-3.0-or-later"
-version = "1.6.1"
+version = "1.7.0"
 edition = "2021"
 keywords = ["usb", "lsusb", "system_profiler", "macos", "libusb"]
 categories = ["command-line-utilities"]
@@ -32,32 +32,34 @@ terminal_size = "0.2.5"
 strum = "0.24.1"
 strum_macros = "0.24.3"
 
-[patch.crates-io]
-libudev-sys = { git = "https://github.com/Emilgardis/libudev-sys/", branch = "fix-cross-compilation" }
-
 [dev-dependencies]
 diff = "0.1"
 assert-json-diff = "2.0.2"
 
 [target.x86_64-unknown-linux-gnu.dependencies]
-udev = { version = "^0.8.0", optional = true }
+udevrs = { version = "^0.3.0", optional = true }
+udevlib = { package = "udev", version = "^0.8.0", optional = true }
 rusb = "0.9.4"
 
 [target.arm-unknown-linux-gnueabihf.dependencies]
-udev = { version = "^0.8.0", optional = true }
+udevrs = { version = "^0.3.0", optional = true }
+udevlib = { package = "udev", version = "^0.8.0", optional = true }
 rusb = "0.9.4"
 
 [target.aarch64-unknown-linux-gnu.dependencies]
-udev = { version = "^0.8.0", optional = true }
+udevrs = { version = "^0.3.0", optional = true }
+udevlib = { package = "udev", version = "^0.8.0", optional = true }
 rusb = "0.9.4"
 
 [features]
 libusb = ["dep:rusb"]
-udev = ["dep:udev"]
-udev_hwdb = ["udev/hwdb"]
+udev = ["libusb", "dep:udevrs"]
+udev_hwdb = ["libusb", "udevlib?/hwdb"]
+# libudev C binding
+udevlib = ["libusb", "dep:udevlib"]
 usb_test = []
 cli_generate = ["dep:clap_complete", "dep:clap_mangen"] # for generating man and completions
-default = ["libusb"]
+default = ["libusb", "udev"]
 
 [[bin]]
 name = "cyme"

README.md

@@ -47,7 +47,6 @@ The name comes from the technical term for the type of blossom on a Apple tree:
 ## Requirements
 
 * Linux/Windows and pre-compiled targets require [libusb 1.0.0](https://libusb.info): `brew install libusb`, `sudo apt install libusb-1.0-0-dev` or one's package manager of choice.
-* Linux pre-compiled and `--features udev`/`--features udev_hwdb` requires 'libudev-dev': `sudo apt install libudev-dev` or one's package manager of choice.
 
 For pre-compiled binaries, see the [releases](https://github.com/tuna-f1sh/cyme/releases).
 
@@ -70,9 +69,12 @@ More package managers to come/package distribution, please feel free to create a
 
 ## Linux udev
 
-To obtain device and interface drivers being used on Linux like `lsusb`, one must install 'libudev-dev' via a package manager and the `--features udev` feature when building. To lookup USB IDs from the udev hwdb as well (like `lsusb`) use `--features udev_hwdb`. Without hwdb, `cyme` will use the 'usb-ids' crate, which is the same source as the hwdb binary data but the bundled hwdb may differ due to customisations or last update ('usb-ids' will be most up to date).
+> [!NOTE]
+> Only supported on Linux targets.
 
-Only supported on Linux targets.
+To obtain device and interface drivers being used on Linux like `lsusb`, one can use the `--features udev` feature when building - it's a default feature. The feature uses the Rust crate [udevrs](https://crates.io/crates/udevrs) to obtain the information. To use the C FFI libudev library, use `--no-default-features --features udevlib` which will use the 'libudev' crate. Note that this will require 'libudev-dev' to be installed on the host machine.
+
+To lookup USB IDs from the udev hwdb as well (like `lsusb`) use `--features udev_hwdb`. Without hwdb, `cyme` will use the 'usb-ids' crate, which is the same source as the hwdb binary data but the bundled hwdb may differ due to customisations or last update ('usb-ids' will be most up to date).
 
 ## Alias `lsusb`
 

src/lib.rs

@@ -47,6 +47,9 @@ pub mod system_profiler;
 pub mod types;
 #[cfg(all(target_os = "linux", feature = "udev"))]
 pub mod udev;
+#[cfg(all(all(target_os = "linux", feature = "udevlib"), not(feature = "udev")))]
+#[path = "udev_ffi.rs"]
+pub mod udev;
 pub mod usb;
 
 /// Set cyme module and binary log level