add extra repo's

support for snapshots (with build timestamps)
bugfixes

src/compile/mod.rs

@@ -2,11 +2,11 @@ use std::fs;
 use std::path::{Path, PathBuf};
 use std::process::Command;
 
+use crate::compile::PathNode::*;
 use anyhow::Error;
 use colored::Colorize;
-use crate::compile::PathNode::*;
 
-use crate::Project;
+use crate::project::Project;
 
 const SOURCES: &str = "src/main/java";
 const TESTSOURCES: &str = "src/test/java";
@@ -16,7 +16,6 @@ const TESTRESOURCES: &str = "src/main/java";
 const TARGET_MAIN: &str = "target/classes";
 const TARGET_TEST: &str = "target/test-classes";
 
-
 /// internal view of the src filesystem
 #[derive(Debug)]
 enum PathNode {
@@ -26,21 +25,25 @@ enum PathNode {
 
 /// runs the compile stage
 pub fn run(project: &Project) -> Result<(), Error> {
-    println!("{} {}.{}-{}", "Compiling".green(), project.group, project.name, project.version);
+    println!(
+        "{} {}.{}-{}",
+        "Compiling".green(),
+        project.group,
+        project.name,
+        project.version
+    );
 
     let root = PathBuf::from(&project.project_root).join(SOURCES);
 
     let mut src_tree = DirNode(root.clone(), Vec::new(), Vec::new());
     determine_src_tree(root, &mut src_tree)?;
-    println!("{:?}", src_tree);
-
-    compile_sourcedir(project, &mut src_tree)?;
+    compile_source_dir(project, &mut src_tree)?;
 
     Ok(())
 }
 
 /// walks the source tree and compiles any java files
-fn compile_sourcedir(project: &Project, src_tree: &mut PathNode) -> Result<(), Error> {
+fn compile_source_dir(project: &Project, src_tree: &mut PathNode) -> Result<(), Error> {
     if let DirNode(dir_name, subdirs, contents) = src_tree {
         if !contents.is_empty() {
             let mut javac = if cfg!(target_os = "windows") {
@@ -78,7 +81,7 @@ fn compile_sourcedir(project: &Project, src_tree: &mut PathNode) -> Result<(), E
             println!("{}", String::from_utf8(output.stdout)?);
         }
         for subdir in subdirs {
-            compile_sourcedir(project, subdir)?;
+            compile_source_dir(project, subdir)?;
         }
     }
     Ok(())

src/config.rs

@@ -4,7 +4,6 @@ use std::sync::OnceLock;
 /// Contains any config elements
 pub struct Config {
     pub cache_location: String,
-    pub maven_central: String,
     pub user_home: PathBuf,
 }
 
@@ -15,9 +14,8 @@ pub fn config() -> &'static Config {
     CONFIG.get_or_init(|| {
         let user_home = home::home_dir().unwrap();
         Config {
-            cache_location: format!("{}/jargo/repo", user_home.to_str().unwrap()).into(),//TODO make '.jargo'
+            cache_location: format!("{}/jargo/repo", user_home.to_str().unwrap()).into(), //TODO make it '.jargo'
             user_home,
-            maven_central: "https://repo.maven.apache.org/maven2".into()
         }
     });
     CONFIG.get().unwrap()

src/deploader.rs

@@ -9,10 +9,13 @@ use bytes::Bytes;
 use sha1::{Digest, Sha1};
 use strong_xml::XmlRead;
 
-use crate::Artifact;
 use crate::config::config;
-use crate::pom::model::Pom;
+use crate::maven;
+use crate::maven::metadata::Metadata;
+use crate::maven::pom::Pom;
+use crate::project::{Artifact, Project};
 use colored::Colorize;
+use reqwest::StatusCode;
 
 /// Loads a list of artifacts from remote repo or local cache
 ///
@@ -25,100 +28,277 @@ use colored::Colorize;
 /// 7. if not downloads it from a repo (now mavencentral only)
 /// 8. verifies the SHA1 as for the jar
 /// 9. extracts the transitive dependencies from the pom and recurses to (1) for the list of dependencies
-pub fn load_artifacts(artifacts: &[Artifact]) -> Result<(), Error> {
+pub fn load(project: &Project) -> Result<(), Error> {
+    load_artifacts(project, &project.main_dependencies)?;
+    load_artifacts(project, &project.test_dependencies)?;
+    Ok(())
+}
+
+fn load_artifacts(project: &Project, artifacts: &Vec<Artifact>) -> Result<(), Error> {
     for art in artifacts {
-        load_artifact(art)?;
+        load_artifact(project, art)?;
     }
     Ok(())
 }
 
-fn load_artifact(art: &Artifact) -> Result<(), Error> {
-    let artifact_path = format!("{}/{}/{}", art.group.replace(".", "/"), art.name, art.version);
-
+/// loads the artifact (all data and metadata for 1 artifact)
+/// 1. create dir in local cache if necessary
+/// 2. look up the pom
+/// 3. look up the jar
+fn load_artifact(project: &Project, artifact: &Artifact) -> Result<(), Error> {
     // check/create artifact directory
-    let local_artifact_loc = format!("{}/{}", config().cache_location, artifact_path);
+    let local_artifact_loc = format!("{}/{}", config().cache_location, artifact.path);
     if !exists(&local_artifact_loc) {
         fs::create_dir_all(&local_artifact_loc)?;
     }
 
+    // download remote pom if not in cache
+    let pom_lookup = lookup_verified_pom(project, artifact, &local_artifact_loc)?;
+
     // download remote jar if not in cache and check its SHA-1 checksum
-    let local_artifact_jar_path = format!("{}/{}-{}.jar", local_artifact_loc, art.name, art.version);
+    let local_artifact_jar_path = format!(
+        "{}/{}-{}.jar",
+        local_artifact_loc, artifact.name, artifact.version
+    );
     if !exists(&local_artifact_jar_path) {
-        download_verify_artifact_jar(art, &artifact_path, &local_artifact_jar_path)?;
+        lookup_verified_jar(
+            project,
+            artifact,
+            &local_artifact_jar_path,
+            &pom_lookup.resolved_repo.unwrap(),
+            &pom_lookup.resolved_version.unwrap(),
+        )?;
     }
 
-    // download remote pom if not in cache //TODO check its SHA-1 checksum
-    let pom_xml = download_verify_pom(art, artifact_path, local_artifact_loc)?;
-
+    println!("{}", pom_lookup.pom_xml);
     // parse pom file
-    let pom = Pom::from_str(&pom_xml).unwrap();
+    let pom = Pom::from_str(&pom_lookup.pom_xml).unwrap();
 
-    let dependencies: Vec<Artifact> = pom.dependencies.value.into_iter().map(|d| d.into()).collect();
-    load_artifacts(&dependencies)?;
+    //TODO exclusions
+    if let Some(dependencies) = pom.dependencies {
+        let artifacts = dependencies.value.into_iter().map(|d| d.into()).collect();
+        load_artifacts(project, &artifacts)?;
+    }
     Ok(())
 }
 
-fn download_verify_pom(art: &Artifact, artifact_path: String, local_artifact_loc: String) -> Result<String, Error> {
-    let local_artifact_pom_path = &format!("{}/{}-{}.pom", local_artifact_loc, art.name, art.version);
-    let remote_artifact_pom_url = format!("{}/{}/{}-{}.pom", config().maven_central, artifact_path, art.name, art.version);
-    let pom_xml = if !exists(local_artifact_pom_path) {
-        println!("{} {}", "Downloading".green(), remote_artifact_pom_url);
-        let body = reqwest::blocking::get(&remote_artifact_pom_url)?.text().unwrap();
-        println!("{} {}", "Downloaded".green(), remote_artifact_pom_url);
-        write_text(local_artifact_pom_path, &body)?;
-        body
-    } else {
+/// main function to download and verify the pom xml.
+/// 1. check if file is locally cached and load if it is
+/// 2. or find a suitable repo (deferred to find_pom)
+/// 3. this function returns the downloaded pom, together with the repo it was found in and the "resolved version'
+/// this is only applicable to SNAPSHOT's where x-SNAPSHOT is resolved to x-<timestamp>-<build_nr>
+/// 4. download the SHA1 file from the same location
+/// 5. validate if the checksum equals the checksum calculated from the pom
+///
+/// The result from find_pom is passed on to the caller so that the information can be used
+/// for subsequent requests.
+fn lookup_verified_pom(
+    project: &Project,
+    artifact: &Artifact,
+    local_artifact_loc: &str,
+) -> Result<PomLookupResult, Error> {
+    let local_artifact_pom_path = &format!(
+        "{}/{}-{}.pom",
+        local_artifact_loc, artifact.name, artifact.version
+    );
+    let result = if exists(local_artifact_pom_path) {
         read_file_to_string(local_artifact_pom_path)?
+    } else {
+        find_pom(project, artifact, local_artifact_pom_path)?
     };
+    if result.is_none() {
+        panic!("Could not find pom for {}", artifact.path)
+    } else {
+        let result = result.unwrap();
+        let repo_with_pom = result.resolved_repo.as_ref(); //TODO replace tuple with struct
+        let pom_xml = &result.pom_xml;
 
-    let local_artifact_pom_sha1_path = format!("{}.sha1", local_artifact_pom_path);
+        let local_artifact_pom_sha1_path = format!("{}.sha1", local_artifact_pom_path);
 
-    // verify jarfile with SHA1 checksum (which is hex encoded)
-    let checksum = hex::decode(
-        if !exists(&local_artifact_pom_sha1_path) {
-            download_checksum(&remote_artifact_pom_url, &local_artifact_pom_sha1_path)?
+        // verify jarfile with SHA1 checksum (which is hex encoded)
+        let checksum = if !exists(&local_artifact_pom_sha1_path) {
+            download_checksum(repo_with_pom, &local_artifact_pom_sha1_path)?
         } else {
             read_file_to_bytes(local_artifact_pom_sha1_path)?
-        })?;
-    let validated = validate_checksum_text(&pom_xml, checksum);
-    if !validated {
-        Err(anyhow!("SHA1 checksum for {} is not valid", remote_artifact_pom_url))
-    } else { Ok(pom_xml) }
+        };
+        if let Some(checksum) = checksum {
+            let validated = validate_checksum_text(&pom_xml, hex::decode(checksum)?);
+            return if !validated {
+                Err(anyhow!("SHA1 checksum for {} is not valid", artifact.path))
+            } else {
+                Ok(result.clone()) // SHA1 ok
+            };
+        } else {
+            // no SHA1 found
+            Ok(result.clone())
+        }
+    }
 }
 
+#[derive(Debug, Clone)]
+struct PomLookupResult {
+    pom_xml: String,
+    resolved_repo: Option<String>,
+    resolved_version: Option<String>,
+}
+
+fn find_pom(
+    project: &Project,
+    artifact: &Artifact,
+    local_artifact_pom_path: &str,
+) -> Result<Option<PomLookupResult>, Error> {
+    for repo in &project.repositories {
+        let resolved_version = resolve_version(&artifact, repo)?;
+        let r = download_pom(artifact, &resolved_version, local_artifact_pom_path, &repo)?;
+        if r.is_some() {
+            return Ok(Some(PomLookupResult {
+                pom_xml: r.unwrap(),
+                resolved_repo: Some(repo.clone()),
+                resolved_version: Some(resolved_version),
+            }));
+        }
+    }
+    Ok(None)
+}
+
+/// returns the pom and the repo where it was found
+fn download_pom(
+    artifact: &Artifact,
+    resolved_version: &str,
+    local_artifact_pom_path: &str,
+    repo: &str,
+) -> Result<Option<String>, Error> {
+    let remote_artifact_pom_url = format!(
+        "{}/{}/{}-{}.pom",
+        repo, artifact.path, artifact.name, resolved_version
+    );
+
+    println!("{} {}", "Downloading".green(), remote_artifact_pom_url);
+    let response = reqwest::blocking::get(&remote_artifact_pom_url)?;
+    if response.status().is_success() {
+        let body = response.text().unwrap();
+        println!("{} {}", "Downloaded".green(), remote_artifact_pom_url);
+        write_text(local_artifact_pom_path, &body)?;
+        Ok(Some((body)))
+    } else {
+        Ok(None)
+    }
+}
 
 /// Download jar from remote repo and check its signature
 /// For now it's a blocking call, because async and recursion add unwanted complexity/I don't understand that
 /// TODO add progress bar
-fn download_verify_artifact_jar(art: &Artifact, artifact_path: &str, local_artifact_jar_path: &str) -> Result<(), Error> {
-    let remote_artifact_jar_url = format!("{}/{}/{}-{}.jar", config().maven_central, artifact_path, art.name, art.version);
+fn lookup_verified_jar(
+    project: &Project,
+    artifact: &Artifact,
+    local_artifact_jar_path: &str,
+    resolved_repo: &str,
+    resolved_version: &str,
+) -> Result<(), Error> {
+    let remote_artifact_jar_url = format!(
+        "{}/{}/{}-{}.jar",
+        resolved_repo, artifact.path, artifact.name, resolved_version
+    );
 
     println!("{} {}", "Downloading".green(), remote_artifact_jar_url);
-    let jar = reqwest::blocking::get(&remote_artifact_jar_url)?.bytes().unwrap();
-    println!("{} {}", "Downloaded".green(), remote_artifact_jar_url);
-    write_bytes_to_file(&local_artifact_jar_path, &jar)?;
+    let response = reqwest::blocking::get(&remote_artifact_jar_url)?;
+    if response.status().is_success() {
+        let jar = response.bytes().unwrap();
+        println!("{} {}", "Downloaded".green(), remote_artifact_jar_url);
+        write_bytes_to_file(&local_artifact_jar_path, &jar)?;
 
-    let local_artifact_jar_sha1_path = format!("{}.sha1", local_artifact_jar_path);
+        let local_artifact_jar_sha1_path = format!("{}.sha1", local_artifact_jar_path);
 
-    // verify jarfile with SHA1 checksum (which is hex encoded)
-    let checksum = hex::decode(
-        if !exists(&local_artifact_jar_sha1_path) {
-            download_checksum(&remote_artifact_jar_url, &local_artifact_jar_sha1_path)?
+        // verify jarfile with SHA1 checksum (which is hex encoded)
+        let checksum = if !exists(&local_artifact_jar_sha1_path) {
+            download_checksum(
+                Some(&remote_artifact_jar_url),
+                &local_artifact_jar_sha1_path,
+            )?
         } else {
             read_file_to_bytes(local_artifact_jar_sha1_path)?
-        })?;
-    let validated = validate_checksum_bytes(&jar, checksum);
-    if !validated {
-        Err(anyhow!("SHA1 checksum for {} is not valid", remote_artifact_jar_url))
-    } else { Ok(()) }
+        };
+        return if let Some(checksum) = checksum {
+            let validated = validate_checksum_bytes(&jar, hex::decode(checksum)?);
+            if !validated {
+                Err(anyhow!(
+                    "SHA1 checksum for {} is not valid",
+                    remote_artifact_jar_url
+                ))
+            } else {
+                Ok(()) // checksum found and ok
+            }
+        } else {
+            Ok(()) // no checksum found
+        };
+    }
+    panic!(
+        "Artifact {} not found in remote repository {}",
+        artifact.path, resolved_repo
+    );
 }
 
+fn resolve_version(artifact: &Artifact, repo: &String) -> Result<String, Error> {
+    Ok(if artifact.is_snapshot() {
+        let build_nr = load_snapshot_build_nr(&artifact.path, repo)?;
+        if let Some(build_nr) = build_nr {
+            artifact.version.replace("SNAPSHOT", &build_nr)
+        } else {
+            artifact.version.clone()
+        }
+    } else {
+        artifact.version.clone()
+    })
+}
 
-fn download_checksum(remote_artifact_url: &String, local_artifact_jar_sha1_path: &String) -> Result<Vec<u8>, Error> {
-    let remote_artifact_jar_sha1_url = format!("{}.sha1", remote_artifact_url);
-    let jar_checksum = reqwest::blocking::get(&remote_artifact_jar_sha1_url)?.bytes().unwrap();
-    write_bytes_to_file(&local_artifact_jar_sha1_path, &jar_checksum)?;
-    Ok(jar_checksum.to_vec())
+/// Snapshots in a maven repo can be in the form
+/// 'spring-boot-starter-web-3.0.0-20221124.170206-1099.jar'
+/// while we ask for
+/// 'spring-boot-starter-web-3.0.0-SNAPSHOT.jar'
+/// the metadata xml contains the info on what snapshot to download
+/// so we download and parse it
+fn load_snapshot_build_nr(artifact_path: &str, repo: &String) -> Result<Option<String>, Error> {
+    let metadata_url = format!("{}/{}/maven-metadata.xml", repo, artifact_path);
+    let response = reqwest::blocking::get(&metadata_url)?;
+    if response.status().is_success() {
+        let body = response.text().unwrap();
+        write_text(
+            format!(
+                "{}/{}/maven-metadata.xml",
+                config().cache_location,
+                artifact_path
+            )
+            .as_str(),
+            &body,
+        )?;
+        let metadata = Metadata::from_str(&body)?;
+        Ok(Some(format!(
+            "{}-{}",
+            metadata.versioning.snapshot.timestamp.value,
+            metadata.versioning.snapshot.build_number.value
+        )))
+    } else {
+        Ok(None)
+    }
+}
+
+fn download_checksum(
+    remote_artifact_url: Option<&String>,
+    local_artifact_jar_sha1_path: &str,
+) -> Result<Option<Vec<u8>>, Error> {
+    if let Some(remote_artifact_url) = remote_artifact_url {
+        let remote_artifact_jar_sha1_url = format!("{}.sha1", remote_artifact_url);
+        let response = reqwest::blocking::get(&remote_artifact_jar_sha1_url)?;
+        if response.status() == StatusCode::OK {
+            let jar_checksum = response.bytes().unwrap();
+            write_bytes_to_file(&local_artifact_jar_sha1_path, &jar_checksum)?;
+            Ok(Some(jar_checksum.to_vec()))
+        } else {
+            Ok(None)
+        }
+    } else {
+        Ok(None)
+    }
 }
 
 fn validate_checksum_bytes(jar: &Bytes, checksum: Vec<u8>) -> bool {
@@ -139,7 +319,6 @@ fn exists(path: &str) -> bool {
     Path::new(path).exists()
 }
 
-
 fn write_bytes_to_file(jar_path: &str, bytes: &Bytes) -> Result<(), Error> {
     let mut file = File::create(jar_path)?;
     file.write_all(bytes)?;
@@ -152,16 +331,20 @@ fn write_text(path: &str, contents: &String) -> Result<(), Error> {
     Ok(())
 }
 
-fn read_file_to_string(local_artifact_pom_path: &str) -> Result<String, Error> {
+fn read_file_to_string(local_artifact_pom_path: &str) -> Result<Option<PomLookupResult>, Error> {
     let mut file = File::open(local_artifact_pom_path)?;
     let mut contents = String::new();
     file.read_to_string(&mut contents)?;
-    Ok(contents)
+    Ok(Some(PomLookupResult {
+        pom_xml: contents,
+        resolved_repo: None,
+        resolved_version: None,
+    }))
 }
 
-fn read_file_to_bytes(local_artifact_jar_sha1_path: String) -> Result<Vec<u8>, Error> {
+fn read_file_to_bytes(local_artifact_jar_sha1_path: String) -> Result<Option<Vec<u8>>, Error> {
     let mut file = File::open(local_artifact_jar_sha1_path)?;
     let mut contents = Vec::new();
     file.read_to_end(&mut contents)?;
-    Ok(contents)
+    Ok(Some(contents))
 }

src/lib.rs

@@ -1,102 +1,5 @@
-use std::fs;
-use std::path::Path;
-
-use anyhow::{anyhow, Error};
-use toml::{Table, Value};
-
-pub mod pom;
+pub mod compile;
 mod config;
 pub mod deploader;
-pub mod compile;
-
-/// Top struct for jargo project data
-#[derive(Debug)]
-pub struct Project {
-    pub group: String,
-    pub name: String,
-    pub version: String,
-    pub dependencies: Vec<Artifact>,
-    pub test_dependencies: Vec<Artifact>,
-    pub project_root: String,
-}
-
-/// The identifier for any released bundle (jar, war etc) like in maven
-#[derive(Debug)]
-pub struct Artifact {
-    pub group: String,
-    pub name: String,
-    pub version: String,
-}
-
-/// Convert from XML view
-impl From<pom::model::Dependency> for Artifact {
-    fn from(value: pom::model::Dependency) -> Self {
-        Artifact {
-            group: value.group_id.value,
-            name: value.artifact_id.value,
-            version: value.version.value,
-        }
-    }
-}
-
-impl Artifact {
-
-    /// Convert from TOML view
-    pub fn from_table_entry(name_group: &str, version: String) -> Result<Self, Error>{
-        let name_group_split: Vec<&str> = name_group.split(":").collect();
-        if 2 != name_group_split.len(){
-            return Err(anyhow!("dependency {} not well formatted", name_group));
-        }
-        let group = name_group_split[0].into();
-        let name = name_group_split[1].into();
-
-        Ok(Self{
-            group,
-            name,
-            version: version[1..version.len()-1].to_owned(),
-        })
-    }
-}
-
-/// loads the project from the TOML file
-pub fn load_project(jargo_file: Option<&str>) -> Result<Project, Error> {
-    let jargo = Path::new(jargo_file.unwrap_or("./Jargo.toml"));
-
-    let project_table = fs::read_to_string(jargo)?.parse::<Table>()?;
-    let package = project_table.get("package").expect("package info missing");
-
-    let dependencies = get_dependencies(project_table.get("dependencies"))?;
-
-    let test_dependencies = get_dependencies(project_table.get("test-dependencies"))?;
-
-
-    Ok(Project {
-        group: strip_first_last(package.get("group").unwrap().to_string()),
-        name: strip_first_last(package.get("name").unwrap().to_string()),
-        version: strip_first_last(package.get("version").unwrap().to_string()),
-        dependencies,
-        test_dependencies,
-        project_root: jargo.parent().map(Path::to_str).unwrap().expect(&format!("projectroot {:?} not usable", jargo)).into(),
-    })
-}
-
-/// convert dependencies from the TOML view
-fn get_dependencies(table: Option<&Value>) -> Result<Vec<Artifact>, Error> {
-    let mut dependencies = vec![];
-    if let Some(table) = table {
-        let table = table.as_table();
-        if let Some(table) = table {
-            for dep in table {
-                dependencies.push(
-                    Artifact::from_table_entry(dep.0, dep.1.to_string())?
-                )
-            }
-        }
-    }
-    Ok(dependencies)
-}
-
-/// Because strings in the toml are surrounded by double quotes
-fn strip_first_last(text: String) -> String{
-    text[1..text.len()-1].into()
-}
+pub mod maven;
+pub mod project;

src/main.rs

@@ -2,8 +2,9 @@ use anyhow::Error;
 
 /// sample main that will be replaced by a generic one later
 fn main() -> anyhow::Result<(), Error> {
-    let project = jargo::load_project(Some("tests/sample_project/Jargo.toml"))?;
-    jargo::deploader::load_artifacts(&project.test_dependencies)?;
+    let project = jargo::project::load_project(Some("tests/sample_project/Jargo.toml"))?;
+    println!("{:?}", project);
+    jargo::deploader::load(&project)?;
     jargo::compile::run(&project)?;
     Ok(())
 }

src/maven/metadata.rs

@@ -0,0 +1,107 @@
+use strong_xml::XmlRead;
+
+use crate::maven::pom::{ArtifactId, GroupId, Version};
+
+/// The Maven variant to parse poms
+/// These structs is directly modelled after the XML because that is what strong-xml plugin requires
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "metadata")]
+pub struct Metadata {
+    #[xml(child = "groupId")]
+    pub group_id: GroupId,
+    #[xml(child = "artifactId")]
+    pub artifact_id: ArtifactId,
+    #[xml(child = "version")]
+    pub version: Version,
+    #[xml(child = "versioning")]
+    pub versioning: Versioning,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "versioning")]
+pub struct Versioning {
+    #[xml(child = "snapshot")]
+    pub snapshot: Snapshot,
+    #[xml(child = "lastUpdated")]
+    pub last_updated: LastUpdated,
+    #[xml(child = "snapshotVersions")]
+    pub snapshot_versions: SnapshotVersions,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "snapshot")]
+pub struct Snapshot {
+    #[xml(child = "timestamp")]
+    pub timestamp: Timestamp,
+    #[xml(child = "buildNumber")]
+    pub build_number: BuildNumber,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "snapshotVersions")]
+pub struct SnapshotVersions {
+    #[xml(child = "snapshotVersion")]
+    pub snapshot_versions: Vec<SnapshotVersion>,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "snapshotVersion")]
+pub struct SnapshotVersion {
+    #[xml(child = "classifier")]
+    pub classifier: Option<Classifier>,
+    #[xml(child = "extension")]
+    pub extension: Extension,
+    #[xml(child = "value")]
+    pub value: Value,
+    #[xml(child = "updated")]
+    pub updated: Updated,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "timestamp")]
+pub struct Timestamp {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "buildNumber")]
+pub struct BuildNumber {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "lastUpdated")]
+pub struct LastUpdated {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "updated")]
+pub struct Updated {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "extension")]
+pub struct Extension {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "classifier")]
+pub struct Classifier {
+    #[xml(text)]
+    pub value: String,
+}
+
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "value")]
+pub struct Value {
+    #[xml(text)]
+    pub value: String,
+}

src/maven/mod.rs

@@ -0,0 +1,2 @@
+pub mod metadata;
+pub mod pom;

src/maven/pom.rs

@@ -1,4 +1,5 @@
-use strong_xml::{XmlRead};
+use strong_xml::XmlRead;
+use crate::maven::metadata::Versioning;
 
 /// The Maven variant to parse poms
 /// These structs is directly modelled after the XML because that is what strong-xml plugin requires
@@ -7,6 +8,8 @@ use strong_xml::{XmlRead};
 pub struct Pom {
     #[xml(child = "modelVersion")]
     pub model_version: ModelVersion,
+    #[xml(child = "parent")]
+    pub parent: Parent,
     #[xml(child = "groupId")]
     pub group_id: GroupId,
     #[xml(child = "artifactId")]
@@ -16,7 +19,7 @@ pub struct Pom {
     #[xml(child = "name")]
     pub name: Name,
     #[xml(child = "packaging")]
-    pub packaging: Packaging,
+    pub packaging: Option<Packaging>,
     #[xml(child = "url")]
     pub url: Url,
     #[xml(child = "description")]
@@ -28,7 +31,7 @@ pub struct Pom {
     #[xml(child = "developers")]
     pub developers: Developers,
     #[xml(child = "dependencies")]
-    pub dependencies: Dependencies,
+    pub dependencies: Option<Dependencies>,
 }
 
 #[derive(XmlRead, PartialEq, Debug)]
@@ -91,7 +94,7 @@ pub struct Url {
 #[xml(tag = "description")]
 pub struct Description {
     #[xml(text)]
-    value:String,
+    value: String,
 }
 
 #[derive(XmlRead, PartialEq, Debug)]
@@ -119,6 +122,17 @@ pub struct License {
     distribution: Option<Distribution>,
 }
 
+#[derive(XmlRead, PartialEq, Debug)]
+#[xml(tag = "parent")]
+pub struct Parent {
+    #[xml(child = "groupId")]
+    group_id: GroupId,
+    #[xml(child = "artifactId")]
+    artifact_id: ArtifactId,
+    #[xml(child = "version")]
+    version: Version,
+}
+
 #[derive(XmlRead, PartialEq, Debug)]
 #[xml(tag = "scm")]
 pub struct Scm {
@@ -145,7 +159,7 @@ struct Developer {
 #[derive(XmlRead, PartialEq, Debug)]
 #[xml(tag = "dependencies")]
 pub struct Dependencies {
-    #[xml(child = "developer")]
+    #[xml(child = "dependency")]
     pub value: Vec<Dependency>,
 }
 
@@ -157,14 +171,14 @@ pub struct Dependency {
     #[xml(child = "artifactId")]
     pub artifact_id: ArtifactId,
     #[xml(child = "version")]
-    pub version: Version,
+    pub version: Option<Version>,
 }
 
 #[cfg(test)]
 mod test {
     use strong_xml::XmlRead;
 
-    use crate::pom::model::Pom;
+    use crate::maven::pom::Pom;
 
     #[test]
     fn parse_should_not_fail() {

src/pom/mod.rs

@@ -1 +0,0 @@
-pub mod model;

src/project.rs

@@ -0,0 +1,135 @@
+use std::fs;
+use std::path::Path;
+
+use crate::maven::pom::Dependency;
+use anyhow::{anyhow, Error};
+use toml::{Table, Value};
+
+/// Top struct for jargo project data
+#[derive(Debug)]
+pub struct Project {
+    pub group: String,
+    pub name: String,
+    pub version: String,
+    pub main_dependencies: Vec<Artifact>,
+    pub test_dependencies: Vec<Artifact>,
+    pub project_root: String,
+    pub repositories: Vec<String>,
+}
+
+/// The identifier for any released bundle (jar, war etc) like in maven
+#[derive(Debug)]
+pub struct Artifact {
+    pub group: String,
+    pub name: String,
+    pub version: String,
+    pub path: String,
+}
+
+impl Artifact {
+    pub fn new(group: &str, name: &str, version: &str) -> Self {
+        Self {
+            group: group.into(),
+            name: name.into(),
+            version: version.into(),
+            path: format!("{}/{}/{}", group.replace(".", "/"), name, version),
+        }
+    }
+
+    pub fn is_snapshot(&self) -> bool {
+        self.version.ends_with("-SNAPSHOT")
+    }
+}
+
+/// Convert from XML view
+impl From<Dependency> for Artifact {
+    fn from(value: Dependency) -> Self {
+        Self::new(
+            &value.group_id.value,
+            &value.artifact_id.value,
+            &value.version.unwrap().value,
+        )
+    }
+}
+
+impl Artifact {
+    /// Convert from TOML view
+    pub fn from_table_entry(name_group: &str, version: String) -> Result<Self, Error> {
+        let name_group_split: Vec<&str> = name_group.split(":").collect();
+        if 2 != name_group_split.len() {
+            return Err(anyhow!("dependency {} not well formatted", name_group));
+        }
+        let group = name_group_split[0].into();
+        let name = name_group_split[1].into();
+
+        Ok(Self::new(
+            group,
+            name,
+            version[1..version.len() - 1].to_owned().as_str(),
+        ))
+    }
+}
+
+/// loads the project from the TOML file
+pub fn load_project(jargo_file: Option<&str>) -> Result<Project, Error> {
+    let jargo = Path::new(jargo_file.unwrap_or("./Jargo.toml"));
+
+    let project_table = fs::read_to_string(jargo)?.parse::<Table>()?;
+    let package = project_table.get("package").expect("package info missing");
+
+    let repositories = repositories(project_table.get("repositories"))?;
+    let main_dependencies = dependencies(project_table.get("dependencies"))?;
+    let test_dependencies = dependencies(project_table.get("test-dependencies"))?;
+
+    Ok(Project {
+        group: strip_first_last(package.get("group").unwrap().to_string()),
+        name: strip_first_last(package.get("name").unwrap().to_string()),
+        version: strip_first_last(package.get("version").unwrap().to_string()),
+        repositories,
+        main_dependencies,
+        test_dependencies,
+        project_root: jargo
+            .parent()
+            .map(Path::to_str)
+            .unwrap()
+            .expect(&format!("projectroot {:?} not usable", jargo))
+            .into(),
+    })
+}
+
+fn repositories(table: Option<&Value>) -> Result<Vec<String>, Error> {
+    let mut repositories = vec!["https://repo.maven.apache.org/maven2".to_owned()];
+    if let Some(table) = table {
+        let table = table.as_table();
+        if let Some(table) = table {
+            for repo in table {
+                let repo_details = repo.1.clone();
+                if let Value::Table(repo_details) = repo_details {
+                    if let Some(Value::String(url)) = repo_details.get("url") {
+                        repositories.push(url.into());
+                    }
+                }
+            }
+        }
+    }
+    Ok(repositories)
+}
+
+/// convert dependencies from the TOML view
+fn dependencies(table: Option<&Value>) -> Result<Vec<Artifact>, Error> {
+    let mut dependencies = vec![];
+    if let Some(table) = table {
+        let table = table.as_table();
+        if let Some(table) = table {
+            for dep in table {
+                dependencies.push(Artifact::from_table_entry(dep.0, dep.1.to_string())?);
+            }
+        }
+    }
+    Ok(dependencies)
+}
+
+/// Because strings in the toml are surrounded by double quotes
+fn strip_first_last(text: String) -> String {
+    text[1..text.len() - 1].into()
+}

tests/sample_project/Jargo.toml

@@ -3,7 +3,12 @@ group = "nl.sander"
 name = "sample_project"
 version = "0.1-SNAPSHOT"
 
+[repositories]
+spring-milestones = {url = "https://repo.spring.io/milestone"}
+spring-snapshots = {url = "https://repo.spring.io/snapshot"}
+
 [dependencies]
+"org.springframework.boot:spring-boot-starter-web" = "3.0.0-SNAPSHOT"
 
 [test-dependencies]
 "junit:junit" = "4.8.2"