silver 2.0.0

A cross-shell customizable powerline-like prompt with icons
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use crate::{icons, Segment, CONFIG};
use std::path::Path;

use url::Url;

pub fn segment(segment: &mut Segment, args: &[&str]) {
    for dir in CONFIG.git.ignore_dirs.iter() {
        if std::env::current_dir().unwrap()
            == Path::new(
                &shellexpand::full_with_context_no_errors(dir, dirs::home_dir, |s| {
                    std::env::var(s).map(Some).unwrap_or_default()
                })
                .into_owned(),
            )
            .canonicalize()
            .unwrap()
        {
            return;
        }
    }
    if let Ok(mut repo) = git2::Repository::discover(".") {
        let mut domain = icons::get("git");
        if let Ok(origin) = repo.find_remote("origin") {
            let origin = origin.url().unwrap_or_default();
            match Url::parse(origin) {
                Ok(url) => {
                    match url.domain().unwrap_or_default() {
                        "github.com" => domain = icons::get("github"),
                        "gitlab.com" => domain = icons::get("gitlab"),
                        "bitbucket.org" => domain = icons::get("bitbucket"),
                        "dev.azure.com" => domain = icons::get("azure"),
                        _ => {}
                    }
                }
                Err(_) => {
                    if origin.starts_with("git@github.com:") {
                        domain = icons::get("github");
                    } else if origin.starts_with("git@gitlab.com:") {
                        domain = icons::get("gitlab");
                    } else if origin.starts_with("git@bitbucket.org:") {
                        domain = icons::get("bitbucket");
                    }
                }
            }
        }

        let mut stashes = 0;
        repo.stash_foreach(|_, _, _| {
            stashes += 1;
            true
        })
        .unwrap();
        let stashes = icons::repeat("stash", stashes);

        let mut graph = String::new();
        let mut branch = String::new();
        if let Ok(head) = repo.head() {
            branch = head.shorthand().unwrap_or_default().to_owned();
            let local = head.target().unwrap();
            if let Ok(local_branch) = repo.find_branch(&branch, git2::BranchType::Local) {
                let upstream = local_branch.upstream();
                if let Ok(upstream) = upstream {
                    if let Some(upstream) = upstream.get().target() {
                        let (ahead, behind) = match repo.graph_ahead_behind(local, upstream) {
                            Ok((ahead, behind)) => (ahead, behind),
                            Err(_) => (0, 0),
                        };
                        graph = icons::repeat("ahead", ahead) + &icons::repeat("behind", behind);
                    }
                }
            }
        }

        let mut modified = String::new();
        let mut staged = String::new();
        if let Ok(statuses) =
            repo.statuses(Some(git2::StatusOptions::new().include_untracked(true)))
        {
            for status in statuses.iter() {
                // dirty
                segment.background = if args.is_empty() { "yellow" } else { args[0] }.to_owned();

                let status = status.status();
                if modified.is_empty() && status.is_wt_new()
                    || status.is_wt_modified()
                    || status.is_wt_renamed()
                    || status.is_wt_typechange()
                {
                    modified = icons::get("modified");
                }
                if staged.is_empty() && status.is_index_new()
                    || status.is_index_modified()
                    || status.is_index_deleted()
                    || status.is_index_renamed()
                    || status.is_index_typechange()
                {
                    staged = icons::get("staged");
                }

                if !modified.is_empty() && !staged.is_empty() {
                    break;
                }
            }
        }

        let mut parts = vec![domain];
        if !stashes.is_empty() || !graph.is_empty() {
            parts.push(stashes + &graph);
        }
        if !branch.is_empty() {
            parts.push(branch);
        }
        if !modified.is_empty() || !staged.is_empty() {
            parts.push(modified + &staged);
        }
        segment.value = parts.join(" ");
    }
}