Ability to run a script from stdin #126

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1. Gjum commented on May 30, 2024

   

   Gjum

   on May 30, 2024

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   Does process substitution do what you need?

   $ rust-script <(echo 'println!("Hello '"$USER"'!");')
   Hello gjum!
2. wiktor-k commented on Jun 3, 2024

   

   wiktor-k

   on Jun 3, 2024

   Author

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   🤔 Hm... maybe I'm holding it wrong or the inner shell is messing up the outer one but this fails:

   rust-script <( sed 's/PKG/ssh-openpgp-auth/g;s/KIND/shell_completions/g' <<< '//! ```cargo
   //! [dependencies]
   //! pkg = { path = "PKG", package = "PKG" }
   //! clap_allgen = "0.1.0"
   //! ```
   
   fn main() -> Result<(), Box<dyn std::error::Error>> {
       clap_allgen::render_KIND::<pkg::Commands>(
           &std::env::args().collect::<Vec<_>>()[1],
       )?;
       Ok(())
   }
   ' ) '/tmp/xxz'

   The error is:

   error: failed to get `ssh-openpgp-auth` as a dependency of package `_63_d589d09bfb5f45ea9b4b85e0 v0.1.0 (/home/wiktor/.cache/rust-script/projects/d589d09bfb5f45ea9b4b85e0)`
   
   Caused by:
     failed to load source for dependency `ssh-openpgp-auth`
   
   Caused by:
     Unable to update /dev/fd/ssh-openpgp-auth
   
   Caused by:
     failed to read `/dev/fd/ssh-openpgp-auth/Cargo.toml`
   
   Caused by:
     No such file or directory (os error 2)
   error: Could not execute cargo
   

   The following works:

   sed 's/PKG/ssh-openpgp-auth/g;s/KIND/shell_completions/g' > .script.rs <<< '//! ```cargo
   //! [dependencies]
   //! pkg = { path = "PKG", package = "PKG" }
   //! clap_allgen = "0.1.0"
   //! ```
   
   fn main() -> Result<(), Box<dyn std::error::Error>> {
       clap_allgen::render_KIND::<pkg::Commands>(
           &std::env::args().collect::<Vec<_>>()[1],
       )?;
       Ok(())
   }
   '
   rust-script .script.rs '/tmp/xxz'
   rm --force .script.rs

   Just for the record I'm modifying this file.

   Thanks for your time! 👋