add cli args

.gitignore

@@ -1 +1,2 @@
 go.sum
+examples/**/target

cmd/feynman/main.go

@@ -0,0 +1,31 @@
+package main
+
+import "flag"
+
+type arguments struct {
+	buildDeps bool
+	library   bool
+	output    string
+	depsPath  string
+	test      bool
+}
+
+func main() {
+	initArgs()
+}
+func initArgs() *arguments {
+	b := flag.Bool("b", false, "Enables building dependencies from source, instead of searching for already compiled binaries in the library path.")
+	l := flag.Bool("l", false, "Determines if the output should be placed in the standard dependency crate path.")
+	o := flag.String("o", "build", "Output path for this compilation. Should only be used for binaries.")
+	p := flag.String("p", "/usr/lib/feynman", "Library path root.")
+	t := flag.Bool("t", false, "Enables tests. Does not run Cargo benchmarks or examples.")
+
+	flag.Parse()
+	return &arguments{
+		buildDeps: *b,
+		library:   *l,
+		output:    *o,
+		depsPath:  *p,
+		test:      *t,
+	}
+}

examples/base64_test/Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "base64"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
+
+[[package]]
+name = "base64_test"
+version = "0.1.0"
+dependencies = [
+ "base64",
+]

examples/base64_test/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "base64_test"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+base64 = "0.22.1"

examples/base64_test/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, {}!", base64::encode("world"));
+}

examples/getrandom_test/Cargo.lock

@@ -0,0 +1,39 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "cfg-if"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
+
+[[package]]
+name = "getrandom"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "300e883d756b2e4ec94e02791f39b04b522276138852cfc41d9fb7e904106099"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+]
+
+[[package]]
+name = "getrandom_test"
+version = "0.1.0"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.186"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
+
+[[package]]
+name = "r-efi"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"

examples/getrandom_test/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "getrandom_test"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+getrandom = "0.4.3"

examples/getrandom_test/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, {}!", getrandom::u64().unwrap());
+}

examples/helloworld/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "helloworld"
+version = "0.1.0"

examples/helloworld/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "helloworld"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

examples/helloworld/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}

examples/libc_test/Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "libc"
+version = "0.2.186"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
+
+[[package]]
+name = "libc_test"
+version = "0.1.0"
+dependencies = [
+ "libc",
+]

examples/libc_test/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "libc_test"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+libc = "0.2.186"

examples/libc_test/src/main.rs

@@ -0,0 +1,15 @@
+extern crate libc;
+
+use std::ffi::CStr;
+fn main() {
+    unsafe {
+        let buf: *mut libc::utsname = libc::malloc(size_of::<libc::utsname>()) as *mut libc::utsname;
+        if buf.is_null() {
+            panic!("failed to allocate buf");
+        }
+        libc::uname(buf);
+        let sysname: &CStr = CStr::from_ptr((*buf).sysname.as_ptr());
+        println!("Hello, {}!", sysname.to_str().unwrap());
+        libc::free(buf as *mut core::ffi::c_void);
+    }
+}

examples/serde_test/Cargo.lock

@@ -0,0 +1,107 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "itoa"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
+
+[[package]]
+name = "memchr"
+version = "2.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf8baf1c55e62ffcace7a9f06f4bd9cd3f0c4beb022d3b367256b91b87513d98"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.106"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfbc457d0c7a0759a614551b11a6409e5951f6c7537be1f1b7682b9ae9230368"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "serde"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.150"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8014e44b4736ed0538adeecded0fce2a272f22dc9578a7eb6b2d9993c74cfb9"
+dependencies = [
+ "itoa",
+ "memchr",
+ "serde",
+ "serde_core",
+ "zmij",
+]
+
+[[package]]
+name = "serde_test"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.118"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9ae57f904213ebb649ce6895b8a66c66f0203b9319718f69a5612a065b1422"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
+
+[[package]]
+name = "zmij"
+version = "1.0.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd2f034a4bebf216c9e4b7083603e024cf930873fd67830cfb083c9fa33129d9"

examples/serde_test/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "serde_test"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+serde_json = "1.0.150"
+serde = { version = "1.0.228", features = ["derive"] }

examples/serde_test/src/main.rs

@@ -0,0 +1,13 @@
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+struct HelloWorld {
+    who: String,
+}
+fn main() {
+    let json = r#"{
+        "who": "serde"
+    }"#;
+    let hw: HelloWorld = serde_json::from_str(json).unwrap();
+    println!("Hello, {}!", hw.who);
+}

internal/cargo/lockfile.go

@@ -0,0 +1,13 @@
+package cargo
+
+type CargoLock struct {
+	Packages []LockPackage `toml:"package"`
+}
+
+type LockPackage struct {
+	Name         string   `toml:"name"`
+	Version      string   `toml:"version"`
+	Dependencies []string `toml:"dependencies"`
+	Source       string   `toml:"source"`
+	Checksum     string   `toml:"checksum"`
+}

internal/cargo/manifest.go

@@ -0,0 +1,51 @@
+package cargo
+
+type CargoManifest struct {
+	Package           `toml:"package"`
+	Library           Target                `toml:"lib"`
+	Binaries          []Target              `toml:"bin"`
+	Tests             []Target              `toml:"test"`
+	Dependencies      map[string]Dependency `toml:"dependencies"`
+	BuildDependencies map[string]Dependency `toml:"build-dependencies"`
+	DevDependencies   map[string]Dependency `toml:"dev-dependencies"`
+	Target            TargetTable           `toml:"target"`
+}
+type Package struct {
+	Name        string `toml:"name"`
+	Version     string `toml:"version"`
+	Edition     string `toml:"edition"`
+	RustVersion string `toml:"rust-version"`
+	Workspace   string `toml:"workspace"`
+	Build       string `toml:"build"`
+	Links       string `toml:"links"`
+	Autolib     bool   `toml:"autolib"`
+	Autobins    bool   `toml:"autobins"`
+	Autotests   bool   `toml:"autotests"`
+	Resolver    string `toml:"resolver"`
+}
+
+type Target struct {
+	Name             string   `toml:"name"`
+	Path             string   `toml:"path"`
+	Test             bool     `toml:"test"`
+	ProcMacro        bool     `toml:"proc-macro"`
+	Harness          bool     `toml:"harness"`
+	CrateType        []string `toml:"crate-type"`
+	RequiredFeatures []string `toml:"required-features"`
+}
+
+// n.b. only crates.io and local dependencies are supported.
+type Dependency struct {
+	Version         string   `toml:"version"`
+	Path            string   `toml:"path"`
+	DefaultFeatures bool     `toml:"default-features"`
+	Features        []string `toml:"features"`
+	Optional        bool     `toml:"optional"`
+	Package         string   `toml:"package"`
+	Workspace       string   `toml:"workspace"`
+}
+
+type DependenciesTable struct {
+	Dependencies map[string]Dependency `toml:"dependencies"`
+}
+type TargetTable map[string]DependenciesTable