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use super::string_formatter::StringFormatterError;
use super::StringFormatter;
use once_cell::sync::Lazy;
use std::ops::Deref;
use versions::Versioning;
pub struct VersionFormatter<'a> {
formatter: StringFormatter<'a>,
}
impl<'a> VersionFormatter<'a> {
/// Creates an instance of a VersionFormatter from a format string
///
/// Like the StringFormatter, this will throw an error when the string isn't
/// parseable.
pub fn new(format: &'a str) -> Result<Self, StringFormatterError> {
let formatter = StringFormatter::new(format)?;
Ok(Self { formatter })
}
/// Format version string using provided format
pub fn format_version(
version: &'a str,
format: &'a str,
) -> Result<String, StringFormatterError> {
Self::new(format).and_then(|formatter| formatter.format(version))
}
/// Formats a version structure into a readable string
pub fn format(self, version: &'a str) -> Result<String, StringFormatterError> {
let parsed = Lazy::new(|| Versioning::new(version));
let formatted = self
.formatter
.map(|variable| match variable {
"raw" => Some(Ok(version.to_string())),
"major" => match parsed.deref().as_ref() {
Some(Versioning::Ideal(v)) => Some(Ok(v.major.to_string())),
Some(Versioning::General(v)) => Some(Ok(v.nth_lenient(0)?.to_string())),
_ => None,
},
"minor" => match parsed.deref().as_ref() {
Some(Versioning::Ideal(v)) => Some(Ok(v.minor.to_string())),
Some(Versioning::General(v)) => Some(Ok(v.nth_lenient(1)?.to_string())),
_ => None,
},
"patch" => match parsed.deref().as_ref() {
Some(Versioning::Ideal(v)) => Some(Ok(v.patch.to_string())),
Some(Versioning::General(v)) => Some(Ok(v.nth_lenient(2)?.to_string())),
_ => None,
},
_ => None,
})
.parse(None);
formatted.map(|segments| {
segments
.iter()
.map(|segment| segment.value.as_str())
.collect::<String>()
})
}
pub fn format_module_version(
module_name: &str,
version: &str,
version_format: &str,
) -> Option<String> {
match VersionFormatter::format_version(version, version_format) {
Ok(formatted) => Some(formatted),
Err(error) => {
log::warn!("Error formatting `{}` version:\n{}", module_name, error);
Some(format!("v{}", version))
}
}
}
}
#[cfg(test)]
mod tests {
use super::*;
const VERSION_FORMAT: &str = "major:${major} minor:${minor} patch:${patch} raw:${raw}";
#[test]
fn test_semver_full() {
assert_eq!(
VersionFormatter::format_version("1.2.3", VERSION_FORMAT),
Ok("major:1 minor:2 patch:3 raw:1.2.3".to_string())
);
}
#[test]
fn test_semver_partial() {
assert_eq!(
VersionFormatter::format_version("1.2", VERSION_FORMAT),
Ok("major:1 minor:2 patch: raw:1.2".to_string())
);
}
#[test]
fn test_general() {
assert_eq!(
VersionFormatter::format_version("1.2-a.3", VERSION_FORMAT),
Ok("major:1 minor:2 patch: raw:1.2-a.3".to_string())
);
}
#[test]
fn test_dummy() {
assert_eq!(
VersionFormatter::format_version("dummy version", VERSION_FORMAT),
Ok("major: minor: patch: raw:dummy version".to_string())
);
}
}
|
