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use std::fmt::Write;
use toml::Value;
use failure::Fallible as Result;
use failure::ResultExt;
use libimagerror::errors::ErrorMsg as EM;
#[cfg(feature = "early-panic")]
#[macro_export]
macro_rules! if_cfg_panic {
() => { panic!() };
($msg:expr) => { panic!($msg) };
($fmt:expr, $($arg:tt)+) => { panic!($fmt, $($arg),+) };
}
#[cfg(not(feature = "early-panic"))]
#[macro_export]
macro_rules! if_cfg_panic {
() => { };
($msg:expr) => { };
($fmt:expr, $($arg:tt)+) => { };
}
pub fn entry_buffer_to_header_content(buf: &str) -> Result<(Value, String)> {
debug!("Building entry from string");
let mut header = String::new();
let mut content = String::new();
let mut header_consumed = false;
let mut iter = buf.split('\n').skip(1).peekable();
while let Some(line) = iter.next() {
if line == "---" && !header_consumed {
header_consumed = true;
} else if !header_consumed {
let _ = writeln!(header, "{}", line).context(EM::FormatError)?;
} else if iter.peek().is_some() {
let _ = writeln!(content, "{}", line).context(EM::FormatError)?;
} else {
let _ = write!(content, "{}", line).context(EM::FormatError)?;
}
}
let h = ::toml::de::from_str(&header).context(EM::TomlDeserError)?;
Ok((h, content))
}
#[cfg(test)]
mod test {
extern crate env_logger;
use super::entry_buffer_to_header_content;
fn setup_logging() {
let _ = env_logger::try_init();
}
fn mkfile(content: &str) -> String {
format!(r#"---
[imag]
version = '{version}'
---
{content}"#, version = env!("CARGO_PKG_VERSION"), content = content)
}
#[test]
fn test_entry_buffer_to_header_content_1() {
let content = "Hai";
let file = format!(r#"---
[imag]
version = '{version}'
---
{content}"#, version = env!("CARGO_PKG_VERSION"), content = content);
let res = entry_buffer_to_header_content(&file);
assert!(res.is_ok());
let (_, res_content) = res.unwrap();
assert_eq!(res_content, content)
}
#[test]
fn test_entry_buffer_to_header_content_2() {
setup_logging();
let content = r#"Hai
"#;
let file = mkfile(&content);
debug!("FILE: <<<{}>>>", file);
let res = entry_buffer_to_header_content(&file);
assert!(res.is_ok());
let (_, res_content) = res.unwrap();
debug!("CONTENT: <<<{}>>>", res_content);
assert_eq!(res_content, content)
}
#[test]
fn test_entry_buffer_to_header_content_3() {
let content = r#"Hai
barbar
"#;
let file = mkfile(&content);
let res = entry_buffer_to_header_content(&file);
assert!(res.is_ok());
let (_, res_content) = res.unwrap();
assert_eq!(res_content, content)
}
#[test]
fn test_entry_buffer_to_header_content_4() {
let content = r#"Hai
---
barbar
---
"#;
let file = mkfile(&content);
let res = entry_buffer_to_header_content(&file);
assert!(res.is_ok());
let (_, res_content) = res.unwrap();
assert_eq!(res_content, content)
}
#[test]
fn test_entry_buffer_to_header_content_5() {
let content = r#"Hai
---
barbar
---
"#;
let file = mkfile(&content);
let res = entry_buffer_to_header_content(&file);
assert!(res.is_ok());
let (_, res_content) = res.unwrap();
assert_eq!(res_content, content)
}
}