feat: print target and package names formatted as file hyperlinks

[kpbaks]

Resolves #15401

Here is an example of the feature in kitty 0.40.1 with the following config set in ~/.config/kitty/kitty.conf

underline_hyperlinks always
show_hyperlink_targets yes
allow_hyperlinks yes
# ...

Tested on uname -a:

Linux nixos 6.14.0 #1-NixOS SMP PREEMPT_DYNAMIC Mon Mar 24 14:02:41 UTC 2025 x86_64 GNU/Linux

Terminals tested with:

• kitty 0.40.1

• ghostty 1.1.4-6f1b22a-nix
  

• alacritty 0.15.1
  

• VScode's version 1.98 integrated terminal aka. xterm.js

The following cargo invocations will have their output be modified by this change:

cargo run # If multiple binaries are defined in the manifest and [package.default-bin] is not defined
cargo run --bin
cargo run --example
cargo run --package
cargo build --bin
cargo build --example
cargo build --package
cargo test --test
cargo test --bench

In addition I have done a slight refactor to have the printed indent of targets and packages be the same by using a shared constant named const ITEM_INDENT: &str = " ";

This is my first PR to the cargo codebase, so I am not familiar with what is expected in terms of test for a feature such as this.

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[tcanabrava]

this would also work on vte and konsole.

[weihanglo]

Looks good to me! Thanks you.

[weihanglo]

Suggested change

	writeln!(output, "{ITEM_INDENT}{link}{}{link:#}", name)?;
	writeln!(output, "{ITEM_INDENT}{link}{name}{link:#}")?;

[weihanglo]

On macOS:

• ghostty 1.0.1 opened the default editor.
• kitty 0.38.1 opened the default editor.
• iterm2 3.5.11 didn't render any link, even the old existing ones. Anyway, I tried

  printf '\e]8;;file:///Users/user/foo/Cargo.toml\e\\This is a link\e]8;;\e\\'
  

  It tried to scp at the first attempt as we found in feat: Make browser links out of HTML file paths #12889 (comment). However in subsequent attempts it worked correctly and opened the default editor.
• alacritty 0.15.1 didn't render any link just like iterm2. With the same test link above it worked and opened the default editor.

@ehuss would you happen to know why iterm2 doesn't really render those links? Finished dev profile [unoptimized + debuginfo] target(s) in 0.04s should also have a rendered link, but on iterm2 I didn't see it.

[weihanglo]

I feel like this is a two-way door decision, and we already provide a way to disable the behavior, so the bar accepting this should be fairly low. However, as @ehuss has raised a concern of iterm2, I'd like to hear opinions from them :)

[ehuss]

IIRC, it is disabled via

cargo/src/cargo/core/shell.rs

Line 584 in c7be060

if std::env::var_os("TERM_PROGRAM").as_deref() == Some(std::ffi::OsStr::new("iTerm.app")) {

.

[weihanglo]

Yeah and by turning hyperlink on always, both alacritty and iTerm2 work for me. I am going to merge this since iTerm2 is already always disabled.