4 releases
0.1.3 | Dec 8, 2022 |
---|---|
0.1.2 | Jan 30, 2020 |
0.1.1 | Jul 1, 2019 |
0.1.0 | Feb 21, 2019 |
#101 in FFI
4,811 downloads per month
Used in 15 crates
(5 directly)
14KB
211 lines
java-locator
This is a small utility written in Rust.
It locates the active Java installation in the host.
Usage
The utility can be used as a library, or as an executable:
Library
extern crate java_locator;
fn main() -> java_locator::errors::Result<()> {
let java_home = java_locator::locate_java_home()?;
let dyn_lib_path = java_locator::locate_jvm_dyn_library()?;
let libjsig = java_locator::locate_file("libjsig.so")?;
println!("The java home is {}", java_home);
println!("The jvm dynamic library path is {}", dyn_lib_path);
println!("The file libjsig.so is located in {}", libjsig);
Ok(())
}
Executable
Having rust installed, you may install the utility using cargo:
cargo install java-locator --features build-binary
And then, issuing
java-locator
you should have an output like:
/usr/lib/jvm/java-11-openjdk-amd64
You may retrieve the location of the jvm
shared library:
java-locator --jvmlib
should give an output like:
/usr/lib/jvm/java-11-openjdk-amd64/lib/server
This may be used in cases when the LD_LIBRARY_PATH
(or PATH
in windows) should be populated.
You may also retrieve the location of any file inside the Java installation:
java-locator --file libjsig.so
and you can even use wildcards:
java-locator --file libjsig*
The latter two commands should return something like:
/usr/lib/jvm/java-11-openjdk-amd64/lib
License
At your option, under:
- Apache License, Version 2.0, (http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (http://opensource.org/licenses/MIT)
Dependencies
~51–480KB
~12K SLoC