1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use crate::core::PackageId;
use crate::core::{PackageIdSpec, PackageIdSpecQuery, SourceId};
use crate::ops::common_for_install_and_uninstall::*;
use crate::sources::PathSource;
use crate::util::errors::CargoResult;
use crate::util::Filesystem;
use crate::util::GlobalContext;
use anyhow::bail;
use std::collections::BTreeSet;
use std::env;

pub fn uninstall(
    root: Option<&str>,
    specs: Vec<&str>,
    bins: &[String],
    gctx: &GlobalContext,
) -> CargoResult<()> {
    if specs.len() > 1 && !bins.is_empty() {
        bail!("A binary can only be associated with a single installed package, specifying multiple specs with --bin is redundant.");
    }

    let root = resolve_root(root, gctx)?;
    let scheduled_error = if specs.len() == 1 {
        uninstall_one(&root, specs[0], bins, gctx)?;
        false
    } else if specs.is_empty() {
        uninstall_cwd(&root, bins, gctx)?;
        false
    } else {
        let mut succeeded = vec![];
        let mut failed = vec![];
        for spec in specs {
            let root = root.clone();
            match uninstall_one(&root, spec, bins, gctx) {
                Ok(()) => succeeded.push(spec),
                Err(e) => {
                    crate::display_error(&e, &mut gctx.shell());
                    failed.push(spec)
                }
            }
        }

        let mut summary = vec![];
        if !succeeded.is_empty() {
            summary.push(format!(
                "Successfully uninstalled {}!",
                succeeded.join(", ")
            ));
        }
        if !failed.is_empty() {
            summary.push(format!(
                "Failed to uninstall {} (see error(s) above).",
                failed.join(", ")
            ));
        }

        if !succeeded.is_empty() || !failed.is_empty() {
            gctx.shell().status("Summary", summary.join(" "))?;
        }

        !failed.is_empty()
    };

    if scheduled_error {
        bail!("some packages failed to uninstall");
    }

    Ok(())
}

pub fn uninstall_one(
    root: &Filesystem,
    spec: &str,
    bins: &[String],
    gctx: &GlobalContext,
) -> CargoResult<()> {
    let tracker = InstallTracker::load(gctx, root)?;
    let all_pkgs = tracker.all_installed_bins().map(|(pkg_id, _set)| *pkg_id);
    let pkgid = PackageIdSpec::query_str(spec, all_pkgs)?;
    uninstall_pkgid(root, tracker, pkgid, bins, gctx)
}

fn uninstall_cwd(root: &Filesystem, bins: &[String], gctx: &GlobalContext) -> CargoResult<()> {
    let tracker = InstallTracker::load(gctx, root)?;
    let source_id = SourceId::for_path(gctx.cwd())?;
    let mut src = path_source(source_id, gctx)?;
    let pkg = select_pkg(
        &mut src,
        None,
        |path: &mut PathSource<'_>| path.root_package().map(|p| vec![p]),
        gctx,
        None,
    )?;
    let pkgid = pkg.package_id();
    uninstall_pkgid(root, tracker, pkgid, bins, gctx)
}

fn uninstall_pkgid(
    root: &Filesystem,
    mut tracker: InstallTracker,
    pkgid: PackageId,
    bins: &[String],
    gctx: &GlobalContext,
) -> CargoResult<()> {
    let installed = match tracker.installed_bins(pkgid) {
        Some(bins) => bins.clone(),
        None => bail!("package `{}` is not installed", pkgid),
    };

    let dst = root.join("bin").into_path_unlocked();
    for bin in &installed {
        let bin = dst.join(bin);
        if !bin.exists() {
            bail!(
                "corrupt metadata, `{}` does not exist when it should",
                bin.display()
            )
        }
    }

    let bins = bins
        .iter()
        .map(|s| {
            if s.ends_with(env::consts::EXE_SUFFIX) {
                s.to_string()
            } else {
                format!("{}{}", s, env::consts::EXE_SUFFIX)
            }
        })
        .collect::<BTreeSet<_>>();

    for bin in bins.iter() {
        if !installed.contains(bin) {
            bail!("binary `{}` not installed as part of `{}`", bin, pkgid)
        }
    }

    let to_remove = {
        if bins.is_empty() {
            installed
        } else {
            bins
        }
    };

    for bin in to_remove {
        let bin_path = dst.join(&bin);
        gctx.shell().status("Removing", bin_path.display())?;
        tracker.remove_bin_then_save(pkgid, &bin, &bin_path)?;
    }

    Ok(())
}