Merge pull request #417 from serpent-os/boulder-cmake-deps

boulder/drafter: Auto add cmake deps on boulder new

boulder/src/draft/build/cmake.rs

@@ -2,8 +2,14 @@
 //
 // SPDX-License-Identifier: MPL-2.0
 
+use regex::Regex;
+use std::path::Path;
+
+use fs_err as fs;
+
 use crate::draft::build::{Error, Phases, State};
 use crate::draft::File;
+use moss::{dependency, Dependency};
 
 pub fn phases() -> Phases {
     Phases {
@@ -22,7 +28,26 @@ pub fn process(state: &mut State<'_>, file: &File<'_>) -> Result<(), Error> {
 
     if file.file_name() == "CMakeLists.txt" {
         state.increment_confidence(20);
+        scan_cmake(state, &file.path)?;
     }
 
     Ok(())
 }
+
+fn scan_cmake(state: &mut State<'_>, path: &Path) -> Result<(), Error> {
+    let contents = fs::read_to_string(path)?;
+
+    let regex_cmake = Regex::new(r"find_package\(([^ )]+)")?;
+
+    for captures in regex_cmake.captures_iter(&contents) {
+        if let Some(capture) = captures.get(1) {
+            let name = capture.as_str().to_owned();
+
+            state.add_dependency(Dependency {
+                kind: dependency::Kind::CMake,
+                name,
+            });
+        }
+    }
+    Ok(())
+}