Initial commit

1 files changed, 49 insertions, 0 deletions

diff --git a/src/install.rs b/src/install.rs
new file mode 100644
index 0000000..57da431
--- /dev/null
+++ b/src/install.rs
@@ -0,0 +1,49 @@
+use crate::config::{Step, CopyPath};
+use std::{fs, path::PathBuf};
+use crate::util::expand_home;
+
+fn resolve_paths_and_mkdir(paths: &CopyPath, base_path: &PathBuf) -> Result<(PathBuf, PathBuf), Box<dyn std::error::Error>> {
+    let expanded_home = &expand_home(&paths.to);
+    let destination = PathBuf::from(expanded_home);
+    let mut source = base_path.clone();
+    source.push(&paths.from);
+    
+    let dest_parent = destination.parent().unwrap();
+    fs::create_dir_all(dest_parent)?;
+    Ok((source, destination))
+}
+
+fn ln(paths: &CopyPath, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
+    let (source, destination) = resolve_paths_and_mkdir(paths, base_path)?;
+    let source = source.as_path();
+    let destination = destination.as_path();
+    
+    let _ = fs::remove_file(destination);
+    fs::hard_link(source, destination)?;
+    Ok(true)
+}
+
+fn cp(paths: &CopyPath, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
+    let (source, destination) = resolve_paths_and_mkdir(paths, base_path)?;
+    let source = source.as_path();
+    let destination = destination.as_path();
+
+    if fs::metadata(destination).is_ok() {
+        return Ok(false); 
+    }
+    fs::copy(source, destination)?;
+    Ok(true)
+}
+
+fn run_shell(command: &String) -> Result<bool, Box<dyn std::error::Error>> {
+    let exit = std::process::Command::new("/bin/sh").arg("-c").arg(command).output()?;
+    return Ok(exit.status.success());
+}
+
+pub fn run_step(step: &Step, base_path: &PathBuf) -> Result<bool, Box<dyn std::error::Error>> {
+    match step {
+        Step::Link(path) => { ln(path, base_path) },
+        Step::Copy(path) => { cp(path, base_path) },
+        Step::Shell(command) => run_shell(command),
+    }
+}
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