More intelligently perform operations based on the pyproject.toml

src/bin/huak/cli.rs

@@ -283,13 +283,13 @@ fn add(
     group: Option<String>,
     operation_config: OperationConfig,
 ) -> HuakResult<()> {
-    let deps: Vec<&str> =
-        dependencies.iter().map(|item| item.as_str()).collect();
     match group.as_ref() {
-        Some(it) => {
-            ops::add_project_optional_dependencies(&deps, it, &operation_config)
-        }
-        None => ops::add_project_dependencies(&deps, &operation_config),
+        Some(it) => ops::add_project_optional_dependencies(
+            &dependencies,
+            it,
+            &operation_config,
+        ),
+        None => ops::add_project_dependencies(&dependencies, &operation_config),
     }
 }
 
@@ -384,15 +384,15 @@ fn remove(
     group: Option<String>,
     operation_config: OperationConfig,
 ) -> HuakResult<()> {
-    let deps: Vec<&str> =
-        dependencies.iter().map(|item| item.as_str()).collect();
     match group.as_ref() {
         Some(it) => ops::remove_project_optional_dependencies(
-            &deps,
+            &dependencies,
             it,
             &operation_config,
         ),
-        None => ops::remove_project_dependencies(&deps, &operation_config),
+        None => {
+            ops::remove_project_dependencies(&dependencies, &operation_config)
+        }
     }
 }
 

src/huak/lib.rs

@@ -130,18 +130,28 @@ impl Project {
     }
 
     /// Add a Python package as a dependency to the project's manifest file.
-    pub fn add_dependency(&mut self, package_str: &str) {
-        self.pyproject_toml.add_dependency(package_str);
+    pub fn add_dependency(&mut self, package_str: &str) -> HuakResult<()> {
+        if !self.contains_dependency(package_str)?
+            && !self.contains_optional_dependency(package_str)?
+        {
+            self.pyproject_toml.add_dependency(package_str);
+        }
+        Ok(())
     }
 
     /// Add a Python package as a dependency to the project' project file.
     pub fn add_optional_dependency(
         &mut self,
         package_str: &str,
         group_name: &str,
-    ) {
-        self.pyproject_toml
-            .add_optional_dependency(package_str, group_name)
+    ) -> HuakResult<()> {
+        if !self.contains_dependency(package_str)?
+            && !self.contains_optional_dependency(package_str)?
+        {
+            self.pyproject_toml
+                .add_optional_dependency(package_str, group_name)
+        }
+        Ok(())
     }
 
     /// Remove a dependency from the project's manifest file.