added project parser

src/main.rs

@@ -1,4 +1,7 @@
+use std::path::Path;
+use undeepend::maven::project_parser::parse_project;
+
 fn main() {
-    let message = &"xmlns:Hello, world!"[6..];
+    let project = parse_project(Path::new("tests/maven/resources/sample_project")).unwrap();
-    println!("{}",message);
+    println!("{:?}", project);
 }

src/maven/mod.rs

@@ -2,3 +2,4 @@ pub mod metadata;
 pub mod pom;
 pub mod pom_view;
 pub mod pom_parser;
+pub mod project_parser;

src/maven/pom.rs

@@ -8,7 +8,7 @@ pub struct Pom {
     pub group_id: Option<String>,
     pub artifact_id: String,
     pub version: Option<String>,
-    pub name: String,
+    pub name: Option<String>,
     pub packaging: Option<String>,
     pub url: Option<String>,
     pub dependencies: Vec<Dependency>,

src/maven/pom_parser.rs

@@ -3,7 +3,7 @@ use crate::xml::SaxError;
 use crate::xml::dom_parser::{Node, get_document};
 use std::collections::HashMap;
 
-pub fn get_pom(xml: &str) -> Result<Pom, SaxError> {
+pub fn get_pom(xml: impl Into<String>) -> Result<Pom, SaxError> {
     let mut group_id = None;
     let mut artefact_id = None;
     let mut parent = None;
@@ -16,7 +16,7 @@ pub fn get_pom(xml: &str) -> Result<Pom, SaxError> {
     let mut properties = HashMap::new(); // useless assignment...
     let mut modules = vec![]; // not useless assignment...
 
-    for child in get_document(xml)?.root.children {
+    for child in get_document(xml.into().as_str())?.root.children {
         match child.name.as_str() {
             "groupId" => group_id = child.text,
             "artifactId" => artefact_id = child.text,
@@ -37,7 +37,7 @@ pub fn get_pom(xml: &str) -> Result<Pom, SaxError> {
         group_id,
         artifact_id: artefact_id.unwrap(),
         version,
-        name: name.unwrap(),
+        name,
         packaging,
         url,
         dependencies,

src/maven/project_parser.rs

@@ -0,0 +1,41 @@
+use crate::maven::pom::Pom;
+use crate::maven::pom_parser::get_pom;
+use std::fs;
+use std::path::Path;
+
+pub fn parse_project(project_dir: &Path) -> Result<Project, String> {
+    if !project_dir.is_dir() {
+        return Err(format!("{:?} is not a directory", project_dir));
+    }
+
+    let mut pom_file = project_dir.to_path_buf();
+    pom_file.push(Path::new("pom.xml"));
+
+    let pom_file = fs::read_to_string(pom_file).map_err(|e| e.to_string())?;
+    let root = get_pom(pom_file).map_err(|e| e.to_string())?;
+
+    let modules= root.modules
+        .iter()
+        .map(|module| read_module_pom(project_dir, module))
+        .collect();
+
+    Ok(Project {
+        root,
+        modules,
+    })
+}
+
+fn read_module_pom(project_dir: &Path, module: &String) -> Pom {
+    let mut module_file = project_dir.to_path_buf();
+    module_file.push(Path::new(module));
+    module_file.push(Path::new("pom.xml"));
+    let module_pom = fs::read_to_string(module_file)
+        .expect(format!("Cannot read file {}", module).as_str());
+    get_pom(module_pom).expect(format!("Cannot create module pom {}", module).as_str())
+}
+
+#[derive(Debug)]
+pub struct Project {
+    pub root: Pom,
+    pub modules: Vec<Pom>,
+}

tests/maven/mod.rs

@@ -1 +1,2 @@
 mod pom_parser_test;
+mod project_parser_test;

tests/maven/pom_parser_test.rs

@@ -4,7 +4,7 @@ use undeepend::maven::pom_parser::get_pom;
 fn test_pom_parser_is_correct() {
     let test_xml = include_str!("../maven/resources/pom.xml");
     let pom = get_pom(test_xml).expect("failed to get document");
-    assert_eq!("Mockito",pom.name);
+    assert_eq!(Some("Mockito".to_string()),pom.name);
     assert_eq!(Some("org.mockito".to_string()),pom.group_id);
     assert_eq!("mockito-core",pom.artifact_id);
     assert_eq!(Some("1.9.5".to_string()),pom.version);

tests/maven/project_parser_test.rs

@@ -0,0 +1,3 @@
+use std::path::Path;
+use undeepend::maven::project_parser::parse_project;
+