feat(cli): Pull in cargo-script-mvs core logic

This is no where near the implementation we want but I think we should
develop incrementally on top of what we already have.

See https://github.com/epage/cargo-script-mvs/tree/main

Author: epage

Cargo.lock

@@ -13,6 +13,7 @@ exclude = [
 [workspace.dependencies]
 anyhow = "1.0.47"
 base64 = "0.21.0"
+blake3 = "1.3.3"
 bytesize = "1.0"
 cargo = { path = "" }
 cargo-credential = { version = "0.2.0", path = "credential/cargo-credential" }
@@ -66,6 +67,7 @@ pretty_env_logger = "0.4"
 proptest = "1.1.0"
 pulldown-cmark = { version = "0.9.2", default-features = false }
 rand = "0.8.5"
+regex = "1.8.3"
 rustfix = "0.6.0"
 same-file = "1.0.6"
 security-framework = "2.0.0"
@@ -79,6 +81,7 @@ sha2 = "0.10.6"
 shell-escape = "0.1.4"
 snapbox = { version = "0.4.0", features = ["diff", "path"] }
 strip-ansi-escapes = "0.1.0"
+syn = { version = "2.0.14", features = ["extra-traits", "full"] }
 tar = { version = "0.4.38", default-features = false }
 tempfile = "3.1.0"
 termcolor = "1.1.2"
@@ -112,6 +115,7 @@ path = "src/cargo/lib.rs"
 [dependencies]
 anyhow.workspace = true
 base64.workspace = true
+blake3.workspace = true
 bytesize.workspace = true
 cargo-platform.workspace = true
 cargo-util.workspace = true
@@ -147,7 +151,9 @@ os_info.workspace = true
 pasetors.workspace = true
 pathdiff.workspace = true
 pretty_env_logger = { workspace = true, optional = true }
+pulldown-cmark.workspace = true
 rand.workspace = true
+regex.workspace = true
 rustfix.workspace = true
 semver.workspace = true
 serde = { workspace = true, features = ["derive"] }
@@ -157,6 +163,7 @@ serde_json = { workspace = true, features = ["raw_value"] }
 sha1.workspace = true
 shell-escape.workspace = true
 strip-ansi-escapes.workspace = true
+syn.workspace = true
 tar.workspace = true
 tempfile.workspace = true
 termcolor.workspace = true

Cargo.toml

@@ -106,6 +106,7 @@ allow = [
     "MIT-0",
     "Apache-2.0",
     "BSD-3-Clause",
+    "BSD-2-Clause",
     "MPL-2.0",
     "Unicode-DFS-2016",
     "CC0-1.0",

deny.toml

@@ -6,6 +6,7 @@ use crate::command_prelude::*;
 use crate::util::restricted_names::is_glob_pattern;
 use cargo::core::Verbosity;
 use cargo::ops::{self, CompileFilter, Packages};
+use cargo::CargoResult;
 use cargo_util::ProcessError;
 
 pub fn cli() -> Command {
@@ -89,12 +90,54 @@ pub fn is_manifest_command(arg: &str) -> bool {
     1 < path.components().count() || path.extension() == Some(OsStr::new("rs"))
 }
 
-pub fn exec_manifest_command(config: &Config, cmd: &str, _args: &[OsString]) -> CliResult {
+pub fn exec_manifest_command(config: &Config, cmd: &str, args: &[OsString]) -> CliResult {
     if !config.cli_unstable().script {
         return Err(anyhow::anyhow!("running `{cmd}` requires `-Zscript`").into());
     }
 
-    todo!("support for running manifest-commands is not yet implemented")
+    let manifest_path = Path::new(cmd);
+    if !manifest_path.exists() {
+        return Err(
+            anyhow::anyhow!("manifest `{}` does not exist", manifest_path.display()).into(),
+        );
+    }
+    let manifest_path = crate::util::try_canonicalize(manifest_path)?;
+    let script = cargo::util::toml::embedded::RawScript::parse_from(&manifest_path)?;
+    let ws = script.to_workspace(config)?;
+
+    let compile_opts = default_compile_opts(config)?;
+
+    cargo::ops::run(&ws, &compile_opts, args).map_err(|err| to_run_error(config, err))
+}
+
+fn default_compile_opts(config: &Config) -> CargoResult<cargo::ops::CompileOptions> {
+    let mut build_config = cargo::core::compiler::BuildConfig::new(
+        config,
+        None,
+        false,
+        &[],
+        cargo::core::compiler::CompileMode::Build,
+    )?;
+    build_config.requested_profile = cargo::util::interning::InternedString::new("dev");
+    let compile_opts = cargo::ops::CompileOptions {
+        build_config,
+        cli_features: cargo::core::resolver::features::CliFeatures::from_command_line(
+            &[],
+            false,
+            true,
+        )?,
+        spec: cargo::ops::Packages::Default,
+        filter: cargo::ops::CompileFilter::Default {
+            required_features_filterable: false,
+        },
+        target_rustdoc_args: None,
+        target_rustc_args: None,
+        target_rustc_crate_types: None,
+        rustdoc_document_private_items: false,
+        honor_rust_version: true,
+    };
+
+    Ok(compile_opts)
 }
 
 fn to_run_error(config: &cargo::util::Config, err: anyhow::Error) -> CliError {