feat(updater): add plugin (#350)

Co-authored-by: Fabian-Lars <fabianlars@fabianlars.de>

plugins/updater/src/error.rs

@@ -0,0 +1,90 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+use http::StatusCode;
+use serde::{Serialize, Serializer};
+
+/// All errors that can occur while running the updater.
+#[derive(Debug, thiserror::Error)]
+#[non_exhaustive]
+pub enum Error {
+    /// IO Errors.
+    #[error("`{0}`")]
+    Io(#[from] std::io::Error),
+    /// Semver Errors.
+    #[error("Unable to compare version: {0}")]
+    Semver(#[from] semver::Error),
+    /// JSON (Serde) Errors.
+    #[error("JSON error: {0}")]
+    SerdeJson(#[from] serde_json::Error),
+    /// Minisign is used for signature validation.
+    #[error("Verify signature error: {0}")]
+    Minisign(#[from] minisign_verify::Error),
+    /// Error with Minisign base64 decoding.
+    #[error("Signature decoding error: {0}")]
+    Base64(#[from] base64::DecodeError),
+    /// UTF8 Errors in signature.
+    #[error("The signature {0} could not be decoded, please check if it is a valid base64 string. The signature must be the contents of the `.sig` file generated by the Tauri bundler, as a string.")]
+    SignatureUtf8(String),
+    /// Tauri utils, mainly extract and file move.
+    #[error("Tauri API error: {0}")]
+    TauriApi(#[from] tauri::api::Error),
+    /// Network error.
+    #[error("Download request failed with status: {0}")]
+    DownloadFailed(StatusCode),
+    /// Network error.
+    #[error("Network error: {0}")]
+    Network(#[from] reqwest::Error),
+    /// Failed to serialize header value as string.
+    #[error(transparent)]
+    Utf8(#[from] std::string::FromUtf8Error),
+    /// Could not fetch a valid response from the server.
+    #[error("Could not fetch a valid release JSON from the remote")]
+    ReleaseNotFound,
+    /// Error building updater.
+    #[error("Unable to prepare the updater: {0}")]
+    Builder(String),
+    /// Error building updater.
+    #[error("Unable to extract the new version: {0}")]
+    Extract(String),
+    /// Updater cannot be executed on this Linux package. Currently the updater is enabled only on AppImages.
+    #[error(
+        "Cannot run updater on this Linux package. Currently only an AppImage can be updated."
+    )]
+    UnsupportedLinuxPackage,
+    /// Operating system is not supported.
+    #[error("unsupported OS, expected one of `linux`, `darwin` or `windows`.")]
+    UnsupportedOs,
+    /// Unsupported app architecture.
+    #[error(
+    "Unsupported application architecture, expected one of `x86`, `x86_64`, `arm` or `aarch64`."
+  )]
+    UnsupportedArch,
+    /// The platform was not found on the updater JSON response.
+    #[error("the platform `{0}` was not found on the response `platforms` object")]
+    TargetNotFound(String),
+    /// Triggered when there is NO error and the two versions are equals.
+    /// On client side, it's important to catch this error.
+    #[error("No updates available")]
+    UpToDate,
+    /// The updater responded with an invalid signature type.
+    #[error("the updater response field `{0}` type is invalid, expected {1} but found {2}")]
+    InvalidResponseType(&'static str, &'static str, serde_json::Value),
+    /// HTTP error.
+    #[error(transparent)]
+    Http(#[from] http::Error),
+    /// Temp dir is not on same mount mount. This prevents our updater to rename the AppImage to a temp file.
+    #[cfg(target_os = "linux")]
+    #[error("temp directory is not on the same mount point as the AppImage")]
+    TempDirNotOnSameMountPoint,
+}
+
+impl Serialize for Error {
+    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        serializer.serialize_str(self.to_string().as_ref())
+    }
+}