cli: fix clap deprecation warnings from version 3.2.0 onwards

See clap changelog:
https://github.com/clap-rs/clap/blob/master/CHANGELOG.md#320---2022-06-13

(also check out the clap issue 3822)

Author: devmatteini

src/cli/root_command.rs

@@ -7,10 +7,10 @@ use crate::github::Repository;
 
 #[derive(Debug, Parser)]
 #[clap(
-    name = "dra",
-    version,
-    about = "A command line tool to download release assets from GitHub",
-    long_about = "A command line tool to download release assets from GitHub.
+name = "dra",
+version,
+about = "A command line tool to download release assets from GitHub",
+long_about = "A command line tool to download release assets from GitHub.
 
 EXAMPLES:
 Select and download an asset:
@@ -37,47 +37,47 @@ pub enum Command {
     /// Select and download an asset
     Download {
         /// Github repository using format {owner}/{repo}
-        #[clap(parse(try_from_str = try_parse_repository))]
+        #[clap(value_parser = try_parse_repository)]
         repo: Repository,
 
         /// Untagged asset name to automatically select which asset to download
         ///
         /// Usually this value is generated by the command `untag`
-        #[clap(short = 's', long = "select")]
+        #[clap(short = 's', long = "select", action)]
         select: Option<String>,
 
         /// Set the tag name for fetching a specific release
         ///
         /// Latest release is used if not specified
-        #[clap(short = 't', long = "tag")]
+        #[clap(short = 't', long = "tag", action)]
         tag: Option<String>,
 
         /// Save asset to custom path
         ///
         /// Default path is current working directory and the name of the asset.
         ///
         /// If used with `--install` it must be a directory path
-        #[clap(short = 'o', long = "output", parse(from_os_str), value_hint = ValueHint::AnyPath)]
+        #[clap(short = 'o', long = "output", action, value_hint = ValueHint::AnyPath)]
         output: Option<PathBuf>,
 
         /// Install downloaded asset
         ///
         /// If the downloaded asset is a supported file, it will try to install it.
         /// By default is not used.
-        #[clap(short = 'i', long = "install")]
+        #[clap(short = 'i', long = "install", action)]
         install: bool,
     },
 
     /// Select an asset and generate an untagged version of it
     Untag {
         /// Github repository using format {owner}/{repo}
-        #[clap(parse(try_from_str = try_parse_repository))]
+        #[clap(value_parser = try_parse_repository)]
         repo: Repository,
     },
 
     /// Generate shell completion
     Completion {
-        #[clap(arg_enum)]
+        #[clap(value_enum, action)]
         shell: clap_complete::Shell,
     },
 }

src/github/mod.rs

@@ -11,7 +11,7 @@ pub mod tagged_asset;
 
 pub const GITHUB_TOKEN: &str = "GITHUB_TOKEN";
 
-#[derive(Debug, Eq, PartialEq)]
+#[derive(Debug, Eq, PartialEq, Clone)]
 pub struct Repository {
     pub owner: String,
     pub repo: String,