commit 72b6a13216fba107f4a5478cf2bcf62091078257
Author: mace <safemind@posteo.net>
Date:   Sun Apr 12 13:01:48 2026 +0200

    cargo cleanup tool (plugin)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..67cd2b6
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,222 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anstream"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "824a212faf96e9acacdbd09febd34438f8f711fb84e09a8916013cd7815ca28d"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "940b3a0ca603d1eade50a4846a2afffd5ef57a9feac2c0e2ec2e14f9ead76000"
+
+[[package]]
+name = "anstyle-parse"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52ce7f38b242319f7cabaa6813055467063ecdc9d355bbb4ce0c68908cd8130e"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.102"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
+
+[[package]]
+name = "clap"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b193af5b67834b676abd72466a96c1024e6a6ad978a1f484bd90b85c94041351"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "714a53001bf66416adb0e2ef5ac857140e7dc3a0c48fb28b2f10762fc4b5069f"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1110bd8a634a1ab8cb04345d8d878267d57c3cf1b38d91b71af6686408bbca6a"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8d4a3bb8b1e0c1050499d1815f5ab16d04f0959b233085fb31653fbfc9d98f9"
+
+[[package]]
+name = "cleanup"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "clap",
+ "walkdir",
+]
+
+[[package]]
+name = "colorchoice"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"
+
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
+
+[[package]]
+name = "once_cell_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
+
+[[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 = "1.0.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41f2619966050689382d2b44f664f4bc593e129785a36d6ee376ddf37259b924"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
+[[package]]
+name = "syn"
+version = "2.0.117"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e665b8803e7b1d2a727f4023456bbbbe74da67099c585258af0ad9c5013b9b99"
+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 = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
+name = "walkdir"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
+dependencies = [
+ "same-file",
+ "winapi-util",
+]
+
+[[package]]
+name = "winapi-util"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "windows-link"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
+
+[[package]]
+name = "windows-sys"
+version = "0.61.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
+dependencies = [
+ "windows-link",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..ac68b71
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "cleanup"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1.0.102"
+clap = { version = "4.6.0", features = ["derive"] }
+walkdir = "2.5.0"
+
+[[bin]]
+name = "cargo-cleanup"
+path = "src/main.rs"
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..42b4b8b
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,118 @@
+use std::{
+    path::{Path, PathBuf},
+    process::Command,
+};
+
+use anyhow::Result;
+use walkdir::WalkDir;
+
+#[derive(Default)]
+pub struct Slimmer {
+    pub dry_run: bool,
+}
+
+pub struct Report {
+    pub output: String,
+}
+
+impl Slimmer {
+    #[must_use]
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn cleanup(&self, path: impl AsRef<Path>) -> Result<Report> {
+        let mut output = String::new();
+        for target in manifests(path)? {
+            let mut command = self.cargo_clean_cmd(&target);
+            let cmd_output = command.output()?;
+            output.push_str(&summary(target, &cmd_output));
+        }
+        Ok(Report { output })
+    }
+
+    fn cargo_clean_cmd(&self, target: &PathBuf) -> Command {
+        let mut command = Command::new("cargo");
+        command.arg("clean");
+        command.arg("--manifest-path");
+        command.arg(target);
+
+        if self.dry_run {
+            command.arg("--dry-run");
+        }
+
+        command
+    }
+}
+
+fn summary(target: impl AsRef<Path>, cmd_output: &std::process::Output) -> String {
+    format!(
+        "{}: {}",
+        target.as_ref().parent().unwrap().display(),
+        String::from_utf8_lossy(&cmd_output.stderr).trim_start()
+    )
+}
+
+fn manifests(path: impl AsRef<Path>) -> Result<Vec<PathBuf>> {
+    let mut targets: Vec<PathBuf> = Vec::new();
+    let tmp = WalkDir::new(path)
+        .into_iter()
+        .filter_entry(|e| !e.path().ends_with("target/package"));
+    for entry in tmp {
+        let entry = entry?;
+        if entry.file_name() == "Cargo.toml" {
+            targets.push(entry.into_path());
+        }
+    }
+
+    Ok(targets)
+}
+
+#[cfg(test)]
+mod tests {
+    use std::process::{ExitStatus, Output};
+
+    use super::*;
+    #[test]
+    fn manifestes_returns_toml_paths() {
+        let mut manifest = manifests("tests/data").unwrap();
+        manifest.sort();
+        assert_eq!(
+            manifest,
+            vec![
+                PathBuf::from("tests/data/proj_1/Cargo.toml"),
+                PathBuf::from("tests/data/proj_2/Cargo.toml"),
+                PathBuf::from("tests/data/proj_3/Cargo.toml"),
+            ],
+            "wrong path",
+        );
+    }
+
+    #[test]
+    fn cargo_clean_cmd_returns_correct_command() {
+        let slimmer = Slimmer::new();
+        let cmd = slimmer.cargo_clean_cmd(&PathBuf::from("tests/data/proj_1/Cargo.toml"));
+        assert_eq!(cmd.get_program(), "cargo", "wrong program");
+        assert_eq!(
+            cmd.get_args().collect::<Vec<_>>(),
+            ["clean", "--manifest-path", "tests/data/proj_1/Cargo.toml"],
+            "wrong args"
+        )
+    }
+
+    #[test]
+    fn summary_returns_correct_string() {
+        let cmd_output = summary(
+            PathBuf::from("./target/Cargo.toml"),
+            &Output {
+                stdout: Vec::new(),
+                stderr: String::from("     Removed 2 files, 1.6MiB total\n").into_bytes(),
+                status: ExitStatus::default(),
+            },
+        );
+        assert_eq!(
+            cmd_output, "./target: Removed 2 files, 1.6MiB total\n",
+            "wrong formatting"
+        );
+    }
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..8ac9550
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,35 @@
+use anyhow::Result;
+use clap::Parser;
+use cleanup::{Slimmer};
+
+#[derive(Debug, Parser)]
+#[command(bin_name = "cargo")]
+enum CargoCommand {
+    Slim(Args),
+}
+
+#[derive(clap::Args, Debug)]
+/// Runs `cargo clean` recursively to save disk space by deleting build
+/// artifacts.
+struct Args {
+    #[arg(default_value = ".")]
+    paths: Vec<String>,
+    #[arg(long)]
+    dry_run: bool,
+}
+
+fn main() -> Result<()> {
+    let CargoCommand::Slim(args) = CargoCommand::parse();
+    let mut slimmer = Slimmer::new();
+
+    if args.dry_run {
+        slimmer.dry_run = true;
+    }
+
+    for path in &args.paths {
+        let output = slimmer.cleanup(path)?;
+        println!("{}", output.output);
+    }
+
+    Ok(())
+}
diff --git a/tests/data/proj_1/Cargo.toml b/tests/data/proj_1/Cargo.toml
new file mode 100644
index 0000000..1e2c850
--- /dev/null
+++ b/tests/data/proj_1/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "proj_1"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/tests/data/proj_1/src/main.rs b/tests/data/proj_1/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/tests/data/proj_1/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/tests/data/proj_2/Cargo.toml b/tests/data/proj_2/Cargo.toml
new file mode 100644
index 0000000..8ff59aa
--- /dev/null
+++ b/tests/data/proj_2/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "proj_2"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/tests/data/proj_2/src/main.rs b/tests/data/proj_2/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/tests/data/proj_2/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
diff --git a/tests/data/proj_3/Cargo.toml b/tests/data/proj_3/Cargo.toml
new file mode 100644
index 0000000..89c576b
--- /dev/null
+++ b/tests/data/proj_3/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "proj_3"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
diff --git a/tests/data/proj_3/src/main.rs b/tests/data/proj_3/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/tests/data/proj_3/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}