Merge #3016

3016: Revert "Automatically read license field from Cargo.toml" r=pksunkara a=epage



Co-authored-by: Ed Page <eopage@gmail.com>

examples/01a_quick_example.rs

@@ -33,7 +33,6 @@ fn main() {
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .about("Does awesome things")
-        .license("MIT OR Apache-2.0")
         .arg("-c, --config=[FILE] 'Sets a custom config file'")
         .arg("<output> 'Sets an optional output file'")
         .arg("-d..., --debug... 'Turn debugging information on'")

examples/01b_quick_example.rs

@@ -35,7 +35,6 @@ fn main() {
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .about("Does awesome things")
-        .license("MIT OR Apache-2.0")
         .arg(
             Arg::new("config")
                 .short('c')

examples/02_apps.rs

@@ -20,7 +20,6 @@ fn main() {
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .about("Does awesome things")
-        .license("MIT OR Apache-2.0")
         .get_matches();
 
     // This example doesn't do much, but it *does* give automatic -h, --help, -V, and --version functionality ;)

examples/04_using_matches.rs

@@ -16,7 +16,6 @@ fn main() {
     // argument.
     let matches = App::new("MyApp")
         .about("Parses an input file to do awesome things")
-        .license("MIT OR Apache-2.0")
         .version("1.0")
         .author("Kevin K. <kbknapp@gmail.com>")
         .arg(

examples/08_subcommands.rs

@@ -24,7 +24,6 @@ fn main() {
             App::new("add") // The name we call argument with
                 .about("Adds files to myapp") // The message displayed in "myapp -h"
                 // or "myapp help"
-                .license("MIT OR Apache-2.0")
                 .version("0.1") // Subcommands can have independent version
                 .author("Kevin K.") // And authors
                 .arg(

examples/20_subcommands.rs

@@ -49,7 +49,6 @@ fn main() {
         .subcommand(
             App::new("clone")
                 .about("clones repos")
-                .license("MIT OR Apache-2.0")
                 .arg(Arg::new("repo").about("The repo to clone").required(true)),
         )
         .subcommand(

examples/21_aliases.rs

@@ -6,7 +6,6 @@ fn main() {
             App::new("ls")
                 .aliases(&["list", "dir"])
                 .about("Adds files to myapp")
-                .license("MIT OR Apache-2.0")
                 .version("0.1")
                 .author("Kevin K.")
                 .arg(

src/build/app/mod.rs

@@ -71,7 +71,6 @@ pub struct App<'help> {
     pub(crate) author: Option<&'help str>,
     pub(crate) version: Option<&'help str>,
     pub(crate) long_version: Option<&'help str>,
-    pub(crate) license: Option<&'help str>,
     pub(crate) about: Option<&'help str>,
     pub(crate) long_about: Option<&'help str>,
     pub(crate) before_help: Option<&'help str>,
@@ -747,27 +746,6 @@ impl<'help> App<'help> {
         self
     }
 
-    /// Sets a string of the license to be displayed when displaying help information.
-    ///
-    /// **Pro-tip:** Use `clap`s convenience macro [`crate_license!`] to automatically set your
-    /// application's license to the same thing as your crate at compile time. See the
-    /// [`examples/`] directory for more information
-    ///
-    /// # Examples
-    ///
-    /// ```no_run
-    /// # use clap::{App, Arg};
-    /// App::new("myprog")
-    ///     .license("MIT OR Apache-2.0")
-    /// # ;
-    /// ```
-    /// [`crate_license!`]: ./macro.crate_license!.html
-    /// [`examples/`]: https://github.com/clap-rs/clap/tree/master/examples
-    pub fn license<S: Into<&'help str>>(mut self, license: S) -> Self {
-        self.license = Some(license.into());
-        self
-    }
-
     /// Overrides the `clap` generated usage string.
     ///
     /// This will be displayed to the user when errors are found in argument parsing.

src/macros.rs

@@ -32,37 +32,6 @@ macro_rules! load_yaml {
     };
 }
 
-/// Allows you to pull the licence from your Cargo.toml at compile time. If the `license` field is
-/// empty, then the `licence-field` is read. If both fields are empty, then an empty string is
-/// returned.
-///
-/// # Examples
-///
-/// ```no_run
-/// # #[macro_use]
-/// # extern crate clap;
-/// # use clap::App;
-/// # fn main() {
-/// let m = App::new("app")
-///             .license(crate_license!())
-///             .get_matches();
-/// # }
-/// ```
-#[cfg(feature = "cargo")]
-#[macro_export]
-macro_rules! crate_license {
-    () => {{
-        let mut license = env!("CARGO_PKG_LICENSE");
-        if license.is_empty() {
-            license = env!("CARGO_PKG_LICENSE_FILE");
-        }
-        if license.is_empty() {
-            license = "";
-        }
-        license
-    }};
-}
-
 /// Allows you to pull the version from your Cargo.toml at compile time as
 /// `MAJOR.MINOR.PATCH_PKGVERSION_PRE`
 ///
@@ -197,14 +166,12 @@ macro_rules! app_from_crate {
             .version($crate::crate_version!())
             .author($crate::crate_authors!())
             .about($crate::crate_description!())
-            .license($crate::crate_license!())
     };
     ($sep:expr) => {
         $crate::App::new($crate::crate_name!())
             .version($crate::crate_version!())
             .author($crate::crate_authors!($sep))
             .about($crate::crate_description!())
-            .license($crate::crate_license!())
     };
 }