28 lines
663 B
Rust
28 lines
663 B
Rust
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use std::{
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fs::File,
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io::{BufRead, BufReader},
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};
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use anyhow::Context;
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pub fn read_lines(
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file_path: &str,
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) -> anyhow::Result<impl Iterator<Item = std::io::Result<String>>, anyhow::Error> {
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if file_path.is_empty() {
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return Err(anyhow::anyhow!("File path cannot be empty"));
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}
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let file =
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File::open(file_path).with_context(|| format!("failed to open file: {file_path}"))?;
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let reader = BufReader::new(file);
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Ok(reader.lines())
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}
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pub fn consume_lines(iter: impl Iterator<Item = std::io::Result<String>>) {
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for line in iter {
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let line = line.unwrap_or("".into());
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println!("{line}");
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}
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}
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