Tracking Issue for cargo-script RFC 3424 (original) (raw)

Summary

eRFC: #3424
RFC: rust-lang/rfcs#3502, rust-lang/rfcs#3503

Testing steps (previous testing steps)

Implementation:

• feat: Initial support for single-file packages #12245
• fix(embedded): Don't append hash to bin names #12269
• fix(embedded): Align package name sanitization with cargo-new #12255
• refactor(embedded): Switch to syn for parsing doc comments #12258
• fix(embedded): Don't create an intermediate manifest #12268
• feat(cli): Support cargo Cargo.toml #12281
  • Remove the support for Cargo.toml of the cargo-script #14670
• fix(embeded): Don't pollute the scripts dir with target/ #12282
• fix(embedded): Don't auto-discover build.rs files #12283
• fix(embedded): Don't pollute script dir with lockfile #12284
• CARGO_MANIFEST_PATH variable to replace CARGO_MANIFEST_DIR (feat: add CARGO_MANIFEST_PATH env variable #14404)
• fix: Allow embedded manifests in all commands #12289
• fix(script): Process config relative to script, not CWD #12303
  • See Tracking Issue for cargo-script RFC 3424 #12207 (comment) for rustup (see also cargo install ignores the rust-toolchain.toml or uses the wrong one #11036)
• fix(script): Be quiet on programmatic output #12305
• docs(unstable): Update script documentation #12308
• Evaluation Gate
  • Call for Testing (TWiR, mastadon)
  • t-cargo check-in
• fix(embedded): Error on intentionally unsupported commands #12350
• feat(embedded): Hack in code fence support #12681
• Evaluate Consider making the version field optional in Cargo.toml #9829
• Change config paths to only check CARGO_HOME (Change config paths to only check CARGO_HOME for cargo-script #14749)
• cargo pkgid support (Add cargo pkgid for cargo-script #14831, feat: add cargo pkgid support for cargo-script #14961)
• Remove auto-discovery of a [lib] (Cargo scripts try to build a nearby src/lib.rs if present #14476)
• Remove doc-comment support
• Remove hack from feat(embedded): Hack in code fence support #12681, relying on rustc support for new syntax (see also Styling of Rust Frontmatter style-team#212 for requirements) (fix(toml): Remove workaround for rustc frontmatter support #15570)
• Allow newlines before code fence (fix(toml): Update frontmatter parser for RFC 3503 #14792)
• Harden code fence parser (fix(toml): Update frontmatter parser for RFC 3503 #14792)
• cargo add / cargo rm support (feat(toml): Allow adding/removing from cargo scripts #14857)
• cargo remove prints the edition warning twice
• cargo clippy support
• cargo fmt support (Styling of Rust Frontmatter style-team#212)
• cargo fix support (fix(fix): Migrate cargo script manifests across editions #14864)
• Switch from minimally-invasive manifest defaults to proper normalization (refactor(embedded): Integrate cargo-script logic into main parser #15168)
• Double check shebang detection code against rustc (cargo (for cargo script) and rustc disagee on shebangs #15170)
• Improve quality of parser (fix(embedded): Resolve multiple bugs in frontmatter parser #15573)
• Harden handling of disallowed fields (fix(toml): Prevent non-script fields in Cargo scripts #16026)
• Only sanitize invalid package names, not problematic ones (fix(script): Remove name sanitiztion outside what is strictly required #16120)
• rust-analyzer support
  • Add shebang support for "cargo script" rust-analyzer#15318
  • feat(parser): Don't error on frontmatter rust-analyzer#20854
  • Update r-a for the final parser design

Deferred / non-blocking:

• Users are subject to $CARGO passed to external subcommands can point to the wrong cargo if already set #15099
• cargo publish (including setting the includes implicitly)
• workspace support
• Reduce cargo foo.rs output noise (Cargo script should only output messages from the script for no-change builds #16388)
• RFC: Templating CARGO_TARGET_DIR to make it the parent of all target directories rfcs#3371 and last-seen zulip discussion for shared cache rather than a shared CARGO_TARGET_DIR like in the Pre-RFC
• Code in block doc comments are not formatted rustfmt#5931
• Make package.name optional #12689
• Cargo Scripts with -Zscript should override current_exe #12870
• cargo Cargo.toml support, see Remove the support for Cargo.toml of the cargo-script #14670
• cargo install --path (uses the same path syntax as [dependencies])

Documentation: https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#script

Issues: Z-script Nightly: cargo script

Note: third-party support

• Support for shebang tree-sitter/tree-sitter-rust#183

Considerations for stabilization

• Shebang detection uses a subset of rustc, see docs(embedded): Note the shebang deviation #15173
• Config is only loaded from CARGO_HOME, like cargo install (Change config paths to only check CARGO_HOME for cargo-script #14749)
  • Unlike regular Cargo commands (relative to current_dir)
  • Unlike what was proposed in the RFC (relative to script)
  • This could end up being annoying for scripts in workspaces
• Target dir is built from a hash of the file literally passed in and does not account for any symlinks (parent directories or for the file), see Tracking Issue for cargo-script RFC 3424 #12207 (comment)

Unresolved Issues

See also the Pre-RFC for more discussion

Known Issues

• You can't run cargo foo.rs -Zsomething, only cargo -Zsomething cargo.rs (true for any global flag in Cargo) because anything after the script name is assumed to be an argument to the script, like third-party subcommands.

Future Extensions

No response

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