Add r2md-remove binary

1 files changed, 97 insertions, 0 deletions

diff --git a/src/bin/r2md-remove.rs b/src/bin/r2md-remove.rs
new file mode 100644
index 0000000..0835668
--- /dev/null
+++ b/src/bin/r2md-remove.rs
@@ -0,0 +1,97 @@
+use std::{io, path::PathBuf};
+
+use clap::Parser;
+use repo2markdown::{normalizer::Normalizer, path_list_editor::remove_paths};
+
+/// Remove paths from a null-separated file list from stdin.
+#[derive(Debug, Parser)]
+#[command(version, about, long_about = None)]
+struct Cli {
+    /// Base path used to resolve relative input paths and removal paths.
+    #[arg(long, default_value = ".")]
+    origin: PathBuf,
+
+    /// Paths to remove from the input sequence.
+    paths: Vec<PathBuf>,
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let cli = Cli::parse();
+
+    let normalizer = Normalizer::new(&cli.origin, &cli.origin)?;
+
+    remove_paths(
+        io::stdin().lock(),
+        io::stdout().lock(),
+        &cli.paths,
+        &normalizer,
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use std::path::PathBuf;
+
+    use clap::Parser;
+
+    use super::Cli;
+
+    #[test]
+    fn defaults_origin_to_current_directory() {
+        let cli = Cli::try_parse_from(["r2md-remove"]).unwrap();
+
+        assert_eq!(cli.origin, PathBuf::from("."));
+    }
+
+    #[test]
+    fn accepts_origin() {
+        let cli =
+            Cli::try_parse_from(["r2md-remove", "--origin", "/repo", "src/generated.rs"]).unwrap();
+
+        assert_eq!(cli.origin, PathBuf::from("/repo"));
+        assert_eq!(cli.paths, vec![PathBuf::from("src/generated.rs")]);
+    }
+
+    #[test]
+    fn accepts_no_paths() {
+        let cli = Cli::try_parse_from(["r2md-remove"]).unwrap();
+
+        assert_eq!(cli.paths, Vec::<PathBuf>::new());
+    }
+
+    #[test]
+    fn accepts_one_path() {
+        let cli = Cli::try_parse_from(["r2md-remove", "README.md"]).unwrap();
+
+        assert_eq!(cli.paths, vec![PathBuf::from("README.md")]);
+    }
+
+    #[test]
+    fn accepts_multiple_paths() {
+        let cli = Cli::try_parse_from(["r2md-remove", "README.md", "src/main.rs"]).unwrap();
+
+        assert_eq!(
+            cli.paths,
+            vec![PathBuf::from("README.md"), PathBuf::from("src/main.rs")]
+        );
+    }
+
+    #[test]
+    fn treats_arguments_after_double_dash_as_paths() {
+        let cli = Cli::try_parse_from([
+            "r2md-remove",
+            "--",
+            "--filename-that-looks-like-an-option",
+            "main.rs",
+        ])
+        .unwrap();
+
+        assert_eq!(
+            cli.paths,
+            vec![
+                PathBuf::from("--filename-that-looks-like-an-option"),
+                PathBuf::from("main.rs")
+            ]
+        );
+    }
+}