LCOV2

This is an improved and more featureful library for working with LCOV coverage data.

Features

• Read LCOV files
• Write LCOV files
• Edit LCOV files
• Convert LCOV files to HTML

Future Features

• Merge LCOV files

Screenshot

lib.rs:

A library for generating and writing LCOV files, and converting them to HTML format.

Examples

Writing an LCOV file

This example will write an info file with a single record for a test file with two lines and a single function. (imagine main() has a lot of empty space!)

use lcov::{Records, Record};
use std::fs::write;

let mut records = Records::default();
let test_record = records.get_or_insert_mut(Path::new("/path/to/test.c"));
test_record.add_function_if_not_exists(1, 32, "main");
test_record.increment_function_data("main");
test_record.add_line_if_not_exists(1);
test_record.add_line_if_not_exists(32);
test_record.increment_line(1);
test_record.increment_line(32);
write("test.info", records.to_string()).unwrap();

Reading an LCOV file

This example will read an info file.

use lcov::Records;
use std::fs::read_to_string;

let contents = read_to_string("test.info").unwrap();
let records = Records::from_str(&contents).unwrap();

Generating an HTML report

This example will generate an HTML report from the records in a format that looks very much like LCOV style (not an exact match).

use lcov::Records;
use std::fs::{read_to_string, write};

let contents = read_to_string("test.info").unwrap();
let records = Records::from_str(&contents).unwrap();
write("test.html", records.to_html().unwrap()).unwrap();