feat(vendordep): add vendordep management

- Add vendordep add
- Add vendordep remove
- Add vendordep list
- Refactor downloading

cmd/vendordep/store.go

@@ -0,0 +1,80 @@
+package vendordep
+
+import (
+	"log/slog"
+	"os"
+	"path/filepath"
+	"rph/state"
+)
+
+const vendordepDir = "vendordeps"
+
+func MkCacheDir() {
+	os.MkdirAll(filepath.Join(state.CachePath, vendordepDir), 0755);
+}
+
+func Trash(path string) error {
+	_, err := os.Stat(path)
+	if err != nil {
+		slog.Error("Can't trash file, path must be a valid file", "path", path, "error", err)
+		return err
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		slog.Error("Failed to open vendordep file", "error", err)
+		return err
+	}
+	defer file.Close()
+
+	dep, err := Parse(file)
+	if err != nil {
+		slog.Error("Failed to parse vendordep file", "error", err)
+	}
+
+	err = os.Rename(path, filepath.Join(state.CachePath, vendordepDir, dep.FileName))
+	if err != nil {
+		slog.Info("Failed to move vendor dep", "error", err)
+		return err
+	}
+
+	return nil
+}
+
+// hasVendorDepOnDisk check if a vendor dep is already on your disk, this is only
+// useful if you've got the uuid of the vendordep you would like to install or
+// are in a very percarious situation where you have no internet and any version
+// of your vendordep will do.
+func hasVendorDepOnDisk(dep Vendordep, strict bool) (bool, error) {
+	path := filepath.Join(state.CachePath, vendordepDir)
+
+	// by default we're not matching
+	matches := false
+
+	err := filepath.WalkDir(path, func(path string, d os.DirEntry, err error) error {
+		if err != nil { return err }
+		if d.IsDir() { return nil }
+
+		file, err := os.Open(filepath.Join(path, d.Name()))
+		if err != nil {
+			slog.Error("Failed to open vendordep file", "error", err)
+			return err
+		}
+		defer file.Close()
+
+		new_dep, err := Parse(file)
+		if err != nil {
+			slog.Error("Failed to parse vendordep file", "error", err)
+		}
+
+		matches = new_dep.Matches(dep, strict)
+		return nil
+	})
+
+	if err != nil {
+		slog.Error("Failed to walk the vendordep directory", "error", err)
+		return false, err
+	}
+
+	return matches, nil
+}