feat: add .dcr/ build facts and canonical artifact paths for IDE integrations

tests/cli_gen.rs

@@ -0,0 +1,144 @@
+mod common;
+use common::*;
+use std::fs;
+use std::path::Path;
+
+#[test]
+fn gen_project_info_has_artifact_path() {
+    let dir = unique_sandbox_dir("gen_pi");
+    let out = run_dcr(&["new", "app", "--vcs", "none"], &dir);
+    assert!(out.status.success());
+    let project = dir.join("app");
+
+    let out = run_dcr(&["gen", "project-info", "-q"], &project);
+    assert!(
+        out.status.success(),
+        "project-info failed: {}",
+        String::from_utf8_lossy(&out.stderr)
+    );
+    let stdout = String::from_utf8_lossy(&out.stdout);
+    assert!(
+        stdout.contains("\"artifact_path\""),
+        "missing artifact_path: {stdout}"
+    );
+    assert!(stdout.contains("\"target_dir\""), "missing target_dir");
+    assert!(
+        stdout.contains("\"artifact_kind\""),
+        "missing artifact_kind"
+    );
+    assert!(stdout.contains("\"source_roots\""), "missing source_roots");
+
+    let root_canon = fs::canonicalize(&project).unwrap();
+    assert!(
+        stdout.contains(&root_canon.to_string_lossy().to_string()) || stdout.contains("app"),
+        "root should be absolute-ish: {stdout}"
+    );
+
+    assert!(project.join(".dcr").join("build-info.json").is_file());
+    assert!(project.join(".dcr").join("toolchain.json").is_file());
+    assert!(project.join(".clangd").is_file());
+    let clangd = fs::read_to_string(project.join(".clangd")).unwrap();
+    assert!(clangd.contains("CompilationDatabase: .dcr"));
+}
+
+#[test]
+fn gen_compile_commands_in_dcr_dir() {
+    let dir = unique_sandbox_dir("gen_cc");
+    let out = run_dcr(&["new", "app", "--vcs", "none"], &dir);
+    assert!(out.status.success());
+    let project = dir.join("app");
+
+    let out = run_dcr(&["gen", "compile-commands", "-q"], &project);
+    assert!(
+        out.status.success(),
+        "compile-commands failed: {}",
+        String::from_utf8_lossy(&out.stderr)
+    );
+    assert!(
+        !project.join("compile_commands.json").exists(),
+        "compile_commands.json must not be in project root"
+    );
+    let cc = project.join(".dcr").join("compile_commands.json");
+    assert!(cc.is_file(), "expected .dcr/compile_commands.json");
+    let content = fs::read_to_string(&cc).unwrap();
+    assert!(content.contains("\"directory\""), "missing directory field");
+    assert!(content.contains("\"file\""), "missing file field");
+    assert!(content.starts_with('['));
+
+    assert!(project.join(".clangd").is_file());
+    assert!(project.join(".dcr").join("ide").is_dir());
+}
+
+#[test]
+fn gen_clangd_not_overwritten_if_custom() {
+    let dir = unique_sandbox_dir("gen_clangd");
+    let out = run_dcr(&["new", "app", "--vcs", "none"], &dir);
+    assert!(out.status.success());
+    let project = dir.join("app");
+
+    let custom = "CompileFlags:\n  Add: [-Wall]\n";
+    fs::write(project.join(".clangd"), custom).unwrap();
+
+    let out = run_dcr(&["gen", "compile-commands", "-q"], &project);
+    assert!(out.status.success());
+    let after = fs::read_to_string(project.join(".clangd")).unwrap();
+    assert_eq!(after, custom, "custom .clangd must not be overwritten");
+}
+
+#[test]
+fn gen_vscode_launch_uses_resolver() {
+    let dir = unique_sandbox_dir("gen_vscode");
+    let out = run_dcr(&["new", "app", "--vcs", "none"], &dir);
+    assert!(out.status.success());
+    let project = dir.join("app");
+
+    let out = run_dcr(&["gen", "vscode"], &project);
+    assert!(
+        out.status.success(),
+        "gen vscode failed: {}",
+        String::from_utf8_lossy(&out.stderr)
+    );
+    let launch = fs::read_to_string(project.join(".vscode").join("launch.json")).unwrap();
+    assert!(launch.contains("\"program\""), "launch missing program");
+    assert!(
+        !launch.contains("target/debug/app\"") || launch.contains("linux"),
+        "program should use platform path layout when applicable: {launch}"
+    );
+    let settings = fs::read_to_string(project.join(".vscode").join("settings.json")).unwrap();
+    assert!(
+        settings.contains(".dcr") || settings.contains("compile-commands-dir"),
+        "settings should point at .dcr: {settings}"
+    );
+}
+
+#[test]
+fn build_print_artifact_path() {
+    if available_compiler().is_none() {
+        return;
+    }
+    let dir = unique_sandbox_dir("build_print");
+    let out = run_dcr(&["new", "app", "--vcs", "none"], &dir);
+    assert!(out.status.success());
+    let project = dir.join("app");
+
+    let out = run_dcr(&["build", "--print-artifact-path"], &project);
+    assert!(
+        out.status.success(),
+        "build failed: {}",
+        String::from_utf8_lossy(&out.stderr)
+    );
+    let stdout = String::from_utf8_lossy(&out.stdout);
+    let path_line = stdout
+        .lines()
+        .map(str::trim)
+        .rfind(|l| !l.is_empty())
+        .unwrap_or("");
+    assert!(
+        Path::new(path_line).is_absolute() || path_line.contains("app"),
+        "expected artifact path on stdout, got: {stdout}"
+    );
+    assert!(
+        project.join(".dcr").join("build-info.json").is_file(),
+        "build-info.json should be written after build"
+    );
+}

tests/cli_new.rs

@@ -37,7 +37,9 @@ fn new_vcs_options_work() {
     let project_dir = dir.join("hello_none");
     assert!(project_dir.is_dir());
     assert!(!project_dir.join(".git").exists());
-    assert!(!project_dir.join(".gitignore").exists());
+    assert!(project_dir.join(".gitignore").is_file());
+    let gi = std::fs::read_to_string(project_dir.join(".gitignore")).unwrap();
+    assert!(gi.contains(".dcr/"));
 
     // 2. Test --vcs git
     if is_git_in_path() {
@@ -50,6 +52,7 @@ fn new_vcs_options_work() {
         assert!(project_dir.join(".gitignore").is_file());
         let gitignore = std::fs::read_to_string(project_dir.join(".gitignore")).unwrap();
         assert!(gitignore.contains("/target"));
+        assert!(gitignore.contains(".dcr/"));
     }
 }
 
@@ -60,7 +63,9 @@ fn init_vcs_options_work() {
     let out = run_dcr(&["init", "--vcs", "none"], &dir);
     assert!(out.status.success(), "dcr init --vcs none should succeed");
     assert!(!dir.join(".git").exists());
-    assert!(!dir.join(".gitignore").exists());
+    assert!(dir.join(".gitignore").is_file());
+    let gi = std::fs::read_to_string(dir.join(".gitignore")).unwrap();
+    assert!(gi.contains(".dcr/"));
 
     // 2. Test --vcs git
     if is_git_in_path() {
@@ -71,5 +76,6 @@ fn init_vcs_options_work() {
         assert!(dir.join(".gitignore").is_file());
         let gitignore = std::fs::read_to_string(dir.join(".gitignore")).unwrap();
         assert!(gitignore.contains("/target"));
+        assert!(gitignore.contains(".dcr/"));
     }
 }