use std::path::{Path, PathBuf}; use serde::{Deserialize, Serialize}; lazy_static::lazy_static! {    pub static ref HOME: PathBuf = dirs::home_dir().expect("failed to determine home directory");    pub static ref CONFIG_DIR: PathBuf = HOME.join(".config").join("zed");    pub static ref CONVERSATIONS_DIR: PathBuf = HOME.join(".config/zed/conversations");    pub static ref EMBEDDINGS_DIR: PathBuf = HOME.join(".config/zed/embeddings");    pub static ref LOGS_DIR: PathBuf = HOME.join("Library/Logs/Zed");    pub static ref SUPPORT_DIR: PathBuf = HOME.join("Library/Application Support/Zed");    pub static ref LANGUAGES_DIR: PathBuf = HOME.join("Library/Application Support/Zed/languages");    pub static ref COPILOT_DIR: PathBuf = HOME.join("Library/Application Support/Zed/copilot");    pub static ref DB_DIR: PathBuf = HOME.join("Library/Application Support/Zed/db");    pub static ref SETTINGS: PathBuf = CONFIG_DIR.join("settings.json");    pub static ref KEYMAP: PathBuf = CONFIG_DIR.join("keymap.json");    pub static ref LAST_USERNAME: PathBuf = CONFIG_DIR.join("last-username.txt");    pub static ref LOG: PathBuf = LOGS_DIR.join("Zed.log");    pub static ref OLD_LOG: PathBuf = LOGS_DIR.join("Zed.log.old");    pub static ref LOCAL_SETTINGS_RELATIVE_PATH: &'static Path = Path::new(".zed/settings.json");    pub static ref MODELS_DIR: PathBuf = HOME.join("Library/Application Support/Zed/models");} pub mod legacy {    use std::path::PathBuf;     lazy_static::lazy_static! {        static ref CONFIG_DIR: PathBuf = super::HOME.join(".zed");        pub static ref SETTINGS: PathBuf = CONFIG_DIR.join("settings.json");        pub static ref KEYMAP: PathBuf = CONFIG_DIR.join("keymap.json");    }} pub trait PathExt {    fn compact(&self) -> PathBuf;    fn icon_suffix(&self) -> Option<&str>;    fn extension_or_hidden_file_name(&self) -> Option<&str>;} impl<T: AsRef<Path>> PathExt for T {    /// Compacts a given file path by replacing the user's home directory    /// prefix with a tilde (`~`).    ///    /// # Returns    ///    /// * A `PathBuf` containing the compacted file path. If the input path    ///   does not have the user's home directory prefix, or if we are not on    ///   Linux or macOS, the original path is returned unchanged.    fn compact(&self) -> PathBuf {        if cfg!(target_os = "linux") || cfg!(target_os = "macos") {            match self.as_ref().strip_prefix(HOME.as_path()) {                Ok(relative_path) => {                    let mut shortened_path = PathBuf::new();                    shortened_path.push("~");                    shortened_path.push(relative_path);                    shortened_path                }                Err(_) => self.as_ref().to_path_buf(),            }        } else {            self.as_ref().to_path_buf()        }    }     /// Returns a suffix of the path that is used to determine which file icon to use    fn icon_suffix(&self) -> Option<&str> {        let file_name = self.as_ref().file_name()?.to_str()?;         if file_name.starts_with(".") {            return file_name.strip_prefix(".");        }         self.as_ref()            .extension()            .and_then(|extension| extension.to_str())    }     /// Returns a file's extension or, if the file is hidden, its name without the leading dot    fn extension_or_hidden_file_name(&self) -> Option<&str> {        if let Some(extension) = self.as_ref().extension() {            return extension.to_str();        }         self.as_ref().file_name()?.to_str()?.split('.').last()    }} /// A delimiter to use in `path_query:row_number:column_number` strings parsing.pub const FILE_ROW_COLUMN_DELIMITER: char = ':'; /// A representation of a path-like string with optional row and column numbers./// Matching values example: `te`, `test.rs:22`, `te:22:5`, etc.#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]pub struct PathLikeWithPosition<P> {    pub path_like: P,    pub row: Option<u32>,    // Absent if row is absent.    pub column: Option<u32>,} impl<P> PathLikeWithPosition<P> {    /// Parses a string that possibly has `:row:column` suffix.    /// Ignores trailing `:`s, so `test.rs:22:` is parsed as `test.rs:22`.    /// If any of the row/column component parsing fails, the whole string is then parsed as a path like.    pub fn parse_str<E>(        s: &str,        parse_path_like_str: impl Fn(&str) -> Result<P, E>,    ) -> Result<Self, E> {        let fallback = |fallback_str| {            Ok(Self {                path_like: parse_path_like_str(fallback_str)?,                row: None,                column: None,            })        };         match s.trim().split_once(FILE_ROW_COLUMN_DELIMITER) {            Some((path_like_str, maybe_row_and_col_str)) => {                let path_like_str = path_like_str.trim();                let maybe_row_and_col_str = maybe_row_and_col_str.trim();                if path_like_str.is_empty() {                    fallback(s)                } else if maybe_row_and_col_str.is_empty() {                    fallback(path_like_str)                } else {                    let (row_parse_result, maybe_col_str) =                        match maybe_row_and_col_str.split_once(FILE_ROW_COLUMN_DELIMITER) {                            Some((maybe_row_str, maybe_col_str)) => {                                (maybe_row_str.parse::<u32>(), maybe_col_str.trim())                            }                            None => (maybe_row_and_col_str.parse::<u32>(), ""),                        };                     match row_parse_result {                        Ok(row) => {                            if maybe_col_str.is_empty() {                                Ok(Self {                                    path_like: parse_path_like_str(path_like_str)?,                                    row: Some(row),                                    column: None,                                })                            } else {                                match maybe_col_str.parse::<u32>() {                                    Ok(col) => Ok(Self {                                        path_like: parse_path_like_str(path_like_str)?,                                        row: Some(row),                                        column: Some(col),                                    }),                                    Err(_) => fallback(s),                                }                            }                        }                        Err(_) => fallback(s),                    }                }            }            None => fallback(s),        }    }     pub fn map_path_like<P2, E>(        self,        mapping: impl FnOnce(P) -> Result<P2, E>,    ) -> Result<PathLikeWithPosition<P2>, E> {        Ok(PathLikeWithPosition {            path_like: mapping(self.path_like)?,            row: self.row,            column: self.column,        })    }     pub fn to_string(&self, path_like_to_string: impl Fn(&P) -> String) -> String {        let path_like_string = path_like_to_string(&self.path_like);        if let Some(row) = self.row {            if let Some(column) = self.column {                format!("{path_like_string}:{row}:{column}")            } else {                format!("{path_like_string}:{row}")            }        } else {            path_like_string        }    }} #[cfg(test)]mod tests {    use super::*;     type TestPath = PathLikeWithPosition<String>;     fn parse_str(s: &str) -> TestPath {        TestPath::parse_str(s, |s| Ok::<_, std::convert::Infallible>(s.to_string()))            .expect("infallible")    }     #[test]    fn path_with_position_parsing_positive() {        let input_and_expected = [            (                "test_file.rs",                PathLikeWithPosition {                    path_like: "test_file.rs".to_string(),                    row: None,                    column: None,                },            ),            (                "test_file.rs:1",                PathLikeWithPosition {                    path_like: "test_file.rs".to_string(),                    row: Some(1),                    column: None,                },            ),            (                "test_file.rs:1:2",                PathLikeWithPosition {                    path_like: "test_file.rs".to_string(),                    row: Some(1),                    column: Some(2),                },            ),        ];         for (input, expected) in input_and_expected {            let actual = parse_str(input);            assert_eq!(                actual, expected,                "For positive case input str '{input}', got a parse mismatch"            );        }    }     #[test]    fn path_with_position_parsing_negative() {        for input in [            "test_file.rs:a",            "test_file.rs:a:b",            "test_file.rs::",            "test_file.rs::1",            "test_file.rs:1::",            "test_file.rs::1:2",            "test_file.rs:1::2",            "test_file.rs:1:2:",            "test_file.rs:1:2:3",        ] {            let actual = parse_str(input);            assert_eq!(                actual,                PathLikeWithPosition {                    path_like: input.to_string(),                    row: None,                    column: None,                },                "For negative case input str '{input}', got a parse mismatch"            );        }    }     // Trim off trailing `:`s for otherwise valid input.    #[test]    fn path_with_position_parsing_special() {        let input_and_expected = [            (                "test_file.rs:",                PathLikeWithPosition {                    path_like: "test_file.rs".to_string(),                    row: None,                    column: None,                },            ),            (                "test_file.rs:1:",                PathLikeWithPosition {                    path_like: "test_file.rs".to_string(),                    row: Some(1),                    column: None,                },            ),        ];         for (input, expected) in input_and_expected {            let actual = parse_str(input);            assert_eq!(                actual, expected,                "For special case input str '{input}', got a parse mismatch"            );        }    }     #[test]    fn test_path_compact() {        let path: PathBuf = [            HOME.to_string_lossy().to_string(),            "some_file.txt".to_string(),        ]        .iter()        .collect();        if cfg!(target_os = "linux") || cfg!(target_os = "macos") {            assert_eq!(path.compact().to_str(), Some("~/some_file.txt"));        } else {            assert_eq!(path.compact().to_str(), path.to_str());        }    }     #[test]    fn test_icon_suffix() {        // No dots in name        let path = Path::new("/a/b/c/file_name.rs");        assert_eq!(path.icon_suffix(), Some("rs"));         // Single dot in name        let path = Path::new("/a/b/c/file.name.rs");        assert_eq!(path.icon_suffix(), Some("rs"));         // Multiple dots in name        let path = Path::new("/a/b/c/long.file.name.rs");        assert_eq!(path.icon_suffix(), Some("rs"));         // Hidden file, no extension        let path = Path::new("/a/b/c/.gitignore");        assert_eq!(path.icon_suffix(), Some("gitignore"));         // Hidden file, with extension        let path = Path::new("/a/b/c/.eslintrc.js");        assert_eq!(path.icon_suffix(), Some("eslintrc.js"));    }     #[test]    fn test_extension_or_hidden_file_name() {        // No dots in name        let path = Path::new("/a/b/c/file_name.rs");        assert_eq!(path.extension_or_hidden_file_name(), Some("rs"));         // Single dot in name        let path = Path::new("/a/b/c/file.name.rs");        assert_eq!(path.extension_or_hidden_file_name(), Some("rs"));         // Multiple dots in name        let path = Path::new("/a/b/c/long.file.name.rs");        assert_eq!(path.extension_or_hidden_file_name(), Some("rs"));         // Hidden file, no extension        let path = Path::new("/a/b/c/.gitignore");        assert_eq!(path.extension_or_hidden_file_name(), Some("gitignore"));         // Hidden file, with extension        let path = Path::new("/a/b/c/.eslintrc.js");        assert_eq!(path.extension_or_hidden_file_name(), Some("js"));    }}