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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| use std::error::Error; | ||
| use std::fmt; | ||
|
|
||
| #[derive(Debug, Clone)] | ||
| pub struct Version { | ||
| pub major: u32, | ||
| pub minor: u32 | ||
| } | ||
|
|
||
| impl Version { | ||
| pub fn parse(version: &str) -> Result<Version, VersionParseError> { | ||
| if version.is_empty() { | ||
| return Err(VersionParseError::EmptyVersion); | ||
| } | ||
| let parts: Vec<&str> = version.split('.').collect(); | ||
| if parts.len() < 2 { | ||
| return Err(VersionParseError::InvalidFormat(version.to_string())); | ||
| } | ||
|
|
||
| let major = parts[0] | ||
| .parse::<u32>() | ||
| .map_err(|_| VersionParseError::InvalidFormat(version.to_string()))?; | ||
| let minor = parts[1] | ||
| .parse::<u32>() | ||
| .map_err(|_| VersionParseError::InvalidFormat(version.to_string()))?; | ||
|
|
||
| Ok(Version { major, minor }) | ||
| } | ||
| } | ||
|
|
||
| #[derive(Debug)] | ||
| pub enum VersionParseError { | ||
| EmptyVersion, | ||
| InvalidFormat(String), | ||
| } | ||
|
|
||
| impl fmt::Display for VersionParseError { | ||
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { | ||
| match self { | ||
| VersionParseError::EmptyVersion => write!(f, "Version is empty"), | ||
| VersionParseError::InvalidFormat(version) => { | ||
| write!(f, "Unable to parse version, expected format: x.y[.z], found: {}", version) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl Error for VersionParseError {} | ||
|
|
||
| pub fn is_compatible(client_version: Option<&str>, server_version: Option<&str>) -> bool { | ||
| if client_version.is_none() || server_version.is_none() { | ||
| println!( | ||
| "Unable to compare versions, client_version: {:?}, server_version: {:?}", | ||
| client_version, server_version | ||
| ); | ||
| return false; | ||
| } | ||
|
|
||
| let client_version = client_version.unwrap(); | ||
| let server_version = server_version.unwrap(); | ||
|
|
||
| if client_version == server_version { | ||
| return true; | ||
| } | ||
|
|
||
| match (Version::parse(client_version), Version::parse(server_version)) { | ||
| (Ok(client), Ok(server)) => { | ||
| let major_dif = (client.major as i32 - server.major as i32).abs(); | ||
| if major_dif >= 1 { | ||
| return false; | ||
| } | ||
| (client.minor as i32 - server.minor as i32).abs() <= 1 | ||
| } | ||
| (Err(e), _) | (_, Err(e)) => { | ||
| println!("Unable to compare versions: {}", e); | ||
| false | ||
| } | ||
| } | ||
| } |