Index parsing and gitignore files

src/subcommands/add.rs

@@ -0,0 +1,45 @@
+use anyhow::Result;
+use clap::Parser;
+use std::path::Path;
+
+use crate::{
+    git_fs::{gitignore::expands_and_filter_path, index::Index, normalize_path_in_worktree},
+    subcommands::hash_object::HashObjectSubcommand,
+};
+
+use super::Subcommand;
+
+#[derive(Parser, Debug)]
+pub struct AddSubcommand {
+    pub paths: Vec<String>,
+}
+
+impl Subcommand for AddSubcommand {
+    fn run(&self) -> Result<String> {
+        if self.paths.is_empty() {
+            return Ok(String::from("Nothing specified, nothing added"));
+        }
+
+        let mut index = Index::load()?;
+
+        for path in self.paths.iter().map(|p| Path::new(p).to_path_buf()) {
+            let expanded = expands_and_filter_path(path)?;
+            for p in expanded {
+                println!("Adding {}", p.display());
+                let path_str = String::from(p.to_str().unwrap());
+                let name = String::from(normalize_path_in_worktree(&p)?.to_str().unwrap());
+                println!("adding {}", name);
+                let hash = HashObjectSubcommand {
+                    write: true,
+                    path: path_str,
+                }
+                .run_raw()?;
+                index.add_file(name, hash)?;
+            }
+        }
+
+        index.save()?;
+
+        Ok(String::from(""))
+    }
+}