cargo_flutter/
error.rs

1#[derive(Debug)]
2pub enum Error {
3    PackageNotMember,
4    EngineNotFound(String),
5    FlutterNotFound,
6    DartNotFound,
7    GenSnapshotNotFound,
8    FormatNotSupported,
9    CargoError,
10    FlutterError,
11    NotCalledWithCargo,
12    Which(which::Error),
13    Io(std::io::Error),
14    Toml(toml::de::Error),
15    Utf8(std::str::Utf8Error),
16    Err(failure::Error),
17}
18
19impl std::fmt::Display for Error {
20    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
21        match self {
22            Error::PackageNotMember => write!(f, "Package is not a member of the workspace"),
23            Error::FlutterNotFound => write!(f, "Couldn't find flutter sdk"),
24            Error::EngineNotFound(version) => write!(
25                f,
26                r#"We couldn't find the requested engine version '{}'.
27This means that your flutter version is too old or to new.
28
29To update flutter run `flutter upgrade`. If the problem persists the engine
30build has not completed yet. This means you need to manually supply the flutter
31engine version through one of the following methods:
32
33```bash
34export FLUTTER_ENGINE_VERSION = "..."
35```
36
37`Cargo.toml`
38```toml
39[package.metadata.flutter]
40engine_version = "..."
41```
42
43You'll find the available builds on our github releases page [0].
44
45- [0] https://github.com/flutter-rs/engine-builds/releases"#,
46                version,
47            ),
48            Error::DartNotFound => write!(f, "Could't find dart"),
49            Error::GenSnapshotNotFound => write!(f, "Couldn't find gen_snapshot"),
50            Error::FormatNotSupported => write!(f, "Format not supported"),
51            Error::CargoError => write!(f, "Cargo did not exit successfully"),
52            Error::FlutterError => write!(f, "Flutter did not exit successfully"),
53            Error::NotCalledWithCargo => {
54                write!(f, "This binary may only be called via `cargo flutter`.")
55            }
56            Error::Which(error) => error.fmt(f),
57            Error::Io(error) => error.fmt(f),
58            Error::Toml(error) => error.fmt(f),
59            Error::Utf8(error) => error.fmt(f),
60            Error::Err(error) => error.fmt(f),
61        }
62    }
63}
64
65impl std::error::Error for Error {}
66
67impl From<which::Error> for Error {
68    fn from(error: which::Error) -> Self {
69        Error::Which(error)
70    }
71}
72
73impl From<std::io::Error> for Error {
74    fn from(error: std::io::Error) -> Self {
75        Error::Io(error)
76    }
77}
78
79impl From<toml::de::Error> for Error {
80    fn from(error: toml::de::Error) -> Self {
81        Error::Toml(error)
82    }
83}
84
85impl From<std::str::Utf8Error> for Error {
86    fn from(error: std::str::Utf8Error) -> Self {
87        Error::Utf8(error)
88    }
89}
90
91impl From<failure::Error> for Error {
92    fn from(error: failure::Error) -> Self {
93        Error::Err(error)
94    }
95}
cargo_flutter/error.rs

cargo_flutter/
error.rs
