feat: update version to 0.6.9 and add packaging for Linux and BSD

- Bump version from 0.6.8 to 0.6.9 in Cargo.toml and Cargo.lock.
- Enhance GitHub Actions workflow to build and publish .deb, .rpm, and Snap packages.
- Implement AUR publishing for both dcr and dcr-bin packages.
- Add support for workspace-only projects in the build system.
- Introduce new `workspace` flag for build and run commands.
- Create snapcraft.yaml for Snap package configuration.
- Update build.rs and related files to handle workspace members and inheritance.
- Modify config handling to support optional package and build configurations.

.github/workflows/aur.yml

@@ -1,138 +0,0 @@
-name: AUR Publish
-
-on:
-  workflow_dispatch:
-    inputs:
-      version:
-        description: "Tag version without v prefix (e.g. 0.2.2)"
-        required: true
-  push:
-    tags:
-      - "v*"
-
-permissions:
-  contents: read
-
-jobs:
-  publish-aur:
-    # Не публикуем dev/pre-release теги в AUR
-    if: "!contains(github.ref_name, '-')"
-    runs-on: ubuntu-latest
-    environment: aur
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Derive version and checksum
-        id: meta
-        shell: bash
-        run: |
-          set -euo pipefail
-          if [[ "${GITHUB_EVENT_NAME}" == "workflow_dispatch" ]]; then
-            PKGVER="${{ inputs.version }}"
-          else
-            PKGVER="${GITHUB_REF_NAME#v}"
-          fi
-          SRC_URL="https://github.com/dexoron/dcr/archive/refs/tags/v${PKGVER}.tar.gz"
-          SHA256="$(curl -fsSL "$SRC_URL" | sha256sum | awk '{print $1}')"
-
-          echo "pkgver=$PKGVER" >> "$GITHUB_OUTPUT"
-          echo "source_url=$SRC_URL" >> "$GITHUB_OUTPUT"
-          echo "sha256=$SHA256" >> "$GITHUB_OUTPUT"
-
-      - name: Render AUR metadata
-        shell: bash
-        run: |
-          set -euo pipefail
-          PKGVER='${{ steps.meta.outputs.pkgver }}'
-          SRC_URL='${{ steps.meta.outputs.source_url }}'
-          SHA256='${{ steps.meta.outputs.sha256 }}'
-
-          cat > packaging/aur/dcr/PKGBUILD <<PKG
-          pkgname=dcr
-          pkgver=${PKGVER}
-          pkgrel=1
-          pkgdesc="Cargo-like utility to manage C/C++ projects"
-          arch=('x86_64' 'aarch64')
-          url="https://github.com/dexoron/dcr"
-          license=('MIT')
-          depends=('gcc-libs')
-          makedepends=('cargo')
-          options=('!lto')
-          optdepends=(
-            'gcc: build C/C++ projects with GCC'
-            'clang: build C/C++ projects with Clang'
-          )
-          source=("\$pkgname-\$pkgver.tar.gz::\$url/archive/refs/tags/v\$pkgver.tar.gz")
-          sha256sums=('${SHA256}')
-
-          build() {
-            cd "\$srcdir/\$pkgname-\$pkgver"
-            export CARGO_PROFILE_RELEASE_LTO=false
-            export RUSTFLAGS="\${RUSTFLAGS:-}"
-            export RUSTFLAGS="\${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
-            cargo build --release --locked
-          }
-
-          package() {
-            cd "\$srcdir/\$pkgname-\$pkgver"
-            install -Dm755 "target/release/dcr" "\$pkgdir/usr/bin/dcr"
-            install -Dm644 LICENSE "\$pkgdir/usr/share/licenses/\$pkgname/LICENSE"
-          }
-          PKG
-
-          cat > packaging/aur/dcr/.SRCINFO <<SRC
-          pkgbase = dcr
-          	pkgdesc = Cargo-like utility to manage C/C++ projects
-          	pkgver = ${PKGVER}
-          	pkgrel = 1
-          	url = https://github.com/dexoron/dcr
-          	arch = x86_64
-          	arch = aarch64
-          	license = MIT
-          	makedepends = cargo
-          	depends = gcc-libs
-          	optdepends = gcc: build C/C++ projects with GCC
-          	optdepends = clang: build C/C++ projects with Clang
-            options = !lto
-          	source = dcr-${PKGVER}.tar.gz::${SRC_URL}
-          	sha256sums = ${SHA256}
-
-          pkgname = dcr
-          SRC
-
-      - name: Push to AUR
-        env:
-          AUR_SSH_PRIVATE_KEY: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
-          AUR_PACKAGE: dcr
-        shell: bash
-        run: |
-          set -euo pipefail
-
-          if [[ -z "${AUR_SSH_PRIVATE_KEY:-}" ]]; then
-            echo "AUR_SSH_PRIVATE_KEY secret is missing"
-            exit 1
-          fi
-
-          install -d -m 700 ~/.ssh
-          printf '%s\n' "$AUR_SSH_PRIVATE_KEY" > ~/.ssh/aur
-          chmod 600 ~/.ssh/aur
-          ssh-keyscan aur.archlinux.org >> ~/.ssh/known_hosts
-
-          export GIT_SSH_COMMAND='ssh -i ~/.ssh/aur -o IdentitiesOnly=yes'
-          git clone "ssh://aur@aur.archlinux.org/${AUR_PACKAGE}.git" aur-repo
-          cp packaging/aur/dcr/PKGBUILD aur-repo/PKGBUILD
-          cp packaging/aur/dcr/.SRCINFO aur-repo/.SRCINFO
-
-          cd aur-repo
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-
-          if git diff --quiet; then
-            echo "No AUR changes"
-            exit 0
-          fi
-
-          git add PKGBUILD .SRCINFO
-          git commit -m "dcr ${{ steps.meta.outputs.pkgver }}"
-          git push

.github/workflows/release.yml

@@ -148,6 +148,82 @@ jobs:
           body_path: .github/release-notes.md
           prerelease: ${{ needs.setup.outputs.prerelease == 'true' }}
 
+  # ── Linux Packages (.deb & .rpm) ───────────────────────────────────────────
+  build-deb-rpm:
+    if: ${{ github.event_name == 'push' || github.event.inputs.run_linux == 'true' }}
+    needs: [setup, notes]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.setup.outputs.tag }}
+
+      - name: Download Release Notes
+        uses: actions/download-artifact@v4
+        with:
+          name: release-notes
+          path: .github
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install Tools
+        run: |
+          cargo install cargo-deb
+          cargo install cargo-generate-rpm
+
+      - name: Build Native Release
+        run: cargo build --release
+
+      - name: Generate .deb Package
+        run: cargo deb --no-build
+
+      - name: Generate .rpm Package
+        run: cargo generate-rpm
+
+      - name: Upload Packages to Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ needs.setup.outputs.tag }}
+          files: |
+            target/debian/*.deb
+            target/generate-rpm/*.rpm
+          body_path: .github/release-notes.md
+          prerelease: ${{ needs.setup.outputs.prerelease == 'true' }}
+
+  # ── Snapcraft ──────────────────────────────────────────────────────────────
+  build-snap:
+    if: ${{ github.event_name == 'push' || github.event.inputs.run_linux == 'true' }}
+    needs: [setup, notes]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.setup.outputs.tag }}
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Build Release Binary
+        run: |
+          cargo build --release
+          # Создаем папки для контекста snapcraft, если внутри yaml завязан относительный путь
+          mkdir -p dist
+          cp target/release/dcr dist/
+
+      - name: Build Snap Package
+        uses: snapcore/action-build@v1
+        id: snapcraft
+        with:
+          path: packages/snap
+
+      - name: Upload Snap to Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ needs.setup.outputs.tag }}
+          files: packages/snap/*.snap
+          prerelease: ${{ needs.setup.outputs.prerelease == 'true' }}
+
   # ── macOS ──────────────────────────────────────────────────────────────────
   build-macos:
     if: ${{ github.event_name == 'push' || github.event.inputs.run_macos == 'true' }}
@@ -194,7 +270,7 @@ jobs:
           body_path: .github/release-notes.md
           prerelease: ${{ needs.setup.outputs.prerelease == 'true' }}
 
-# ── BSD ────────────────────────────────────────────────────────────────────
+  # ── BSD Systems ────────────────────────────────────────────────────────────
   build-bsd:
     if: ${{ github.event_name == 'push' || github.event.inputs.run_bsd == 'true' }}
     needs: [setup, notes]
@@ -210,6 +286,7 @@ jobs:
           name: release-notes
           path: .github
 
+      # ── FreeBSD ──
       - name: Install cargo-zigbuild
         run: |
           pip install cargo-zigbuild
@@ -229,7 +306,8 @@ jobs:
           cp target/x86_64-unknown-freebsd/release/dcr "$ASSET"
           echo "FREEBSD_ASSET=${ASSET}" >> "$GITHUB_ENV"
 
-          - name: Build in OpenBSD VM
+      # ── OpenBSD ──
+      - name: Build in OpenBSD VM
         uses: vmactions/openbsd-vm@v1
         with:
           usesh: true
@@ -243,6 +321,7 @@ jobs:
           cp target/release/dcr "$ASSET"
           echo "OPENBSD_ASSET=${ASSET}" >> "$GITHUB_ENV"
 
+      # ── NetBSD ──
       - name: Build in NetBSD VM
         uses: vmactions/netbsd-vm@v1
         with:
@@ -257,6 +336,7 @@ jobs:
           cp target/release/dcr "$ASSET"
           echo "NETBSD_ASSET=${ASSET}" >> "$GITHUB_ENV"
 
+      # ── Assets Upload ──
       - name: Upload Release Assets
         uses: softprops/action-gh-release@v2
         with:
@@ -314,6 +394,218 @@ jobs:
           body_path: .github/release-notes.md
           prerelease: ${{ needs.setup.outputs.prerelease == 'true' }}
 
+  # ── Arch User Repository (dcr) ───────────────────────────────────
+  publish-aur:
+    if: "!contains(github.ref_name, '-')"
+    needs: [setup]
+    runs-on: ubuntu-latest
+    environment: aur
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Derive checksum
+        id: meta
+        shell: bash
+        run: |
+          set -euo pipefail
+          SRC_URL="https://github.com/dexoron/dcr/archive/refs/tags/${{ needs.setup.outputs.tag }}.tar.gz"
+          SHA256="$(curl -fsSL "$SRC_URL" | sha256sum | awk '{print $1}')"
+          echo "source_url=$SRC_URL" >> "$GITHUB_OUTPUT"
+          echo "sha256=$SHA256" >> "$GITHUB_OUTPUT"
+
+      - name: Render AUR metadata
+        shell: bash
+        run: |
+          set -euo pipefail
+          PKGVER='${{ needs.setup.outputs.version }}'
+          SRC_URL='${{ steps.meta.outputs.source_url }}'
+          SHA256='${{ steps.meta.outputs.sha256 }}'
+
+          mkdir -p packages/aur/dcr
+          cat > packages/aur/dcr/PKGBUILD <<PKG
+          pkgname=dcr
+          pkgver=${PKGVER}
+          pkgrel=1
+          pkgdesc="Cargo-like utility to manage C/C++ projects"
+          arch=('x86_64' 'aarch64')
+          url="https://github.com/dexoron/dcr"
+          license=('GPL-3.0-or-later')
+          depends=('gcc-libs')
+          makedepends=('cargo')
+          options=('!lto')
+          optdepends=(
+            'gcc: build C/C++ projects with GCC'
+            'clang: build C/C++ projects with Clang'
+          )
+          source=("\$pkgname-\$pkgver.tar.gz::\$url/archive/refs/tags/v\$pkgver.tar.gz")
+          sha256sums=('${SHA256}')
+
+          build() {
+            cd "\$srcdir/\$pkgname-\$pkgver"
+            export CARGO_PROFILE_RELEASE_LTO=false
+            export RUSTFLAGS="\${RUSTFLAGS:-}"
+            export RUSTFLAGS="\${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
+            cargo build --release --locked
+          }
+
+          package() {
+            cd "\$srcdir/\$pkgname-\$pkgver"
+            install -Dm755 "target/release/dcr" "\$pkgdir/usr/bin/dcr"
+            install -Dm644 LICENSE "\$pkgdir/usr/share/licenses/\$pkgname/LICENSE"
+          }
+          PKG
+
+          cat > packages/aur/dcr/.SRCINFO <<SRC
+          pkgbase = dcr
+            pkgdesc = Cargo-like utility to manage C/C++ projects
+            pkgver = ${PKGVER}
+            pkgrel = 1
+            url = https://github.com/dexoron/dcr
+            arch = x86_64
+            arch = aarch64
+            license = GPL-3.0-or-later
+            makedepends = cargo
+            depends = gcc-libs
+            optdepends = gcc: build C/C++ projects with GCC
+            optdepends = clang: build C/C++ projects with Clang
+            options = !lto
+            source = dcr-${PKGVER}.tar.gz::${SRC_URL}
+            sha256sums = ${SHA256}
+
+          pkgname = dcr
+          SRC
+
+      - name: Push to AUR
+        env:
+          AUR_SSH_PRIVATE_KEY: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
+          AUR_PACKAGE: dcr
+        shell: bash
+        run: |
+          set -euo pipefail
+          install -d -m 700 ~/.ssh
+          printf '%s\n' "$AUR_SSH_PRIVATE_KEY" > ~/.ssh/aur
+          chmod 600 ~/.ssh/aur
+          ssh-keyscan aur.archlinux.org >> ~/.ssh/known_hosts
+
+          export GIT_SSH_COMMAND='ssh -i ~/.ssh/aur -o IdentitiesOnly=yes'
+          git clone "ssh://aur@aur.archlinux.org/${AUR_PACKAGE}.git" aur-repo
+          cp packages/aur/dcr/PKGBUILD aur-repo/PKGBUILD
+          cp packages/aur/dcr/.SRCINFO aur-repo/.SRCINFO
+
+          cd aur-repo
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          if git diff --quiet; then
+            echo "No AUR changes"
+            exit 0
+          fi
+
+          git add PKGBUILD .SRCINFO
+          git commit -m "dcr ${{ needs.setup.outputs.version }}"
+          git push
+
+  # ── Arch User Repository (dcr-bin) ────────────────────────────────
+  publish-aur-bin:
+    if: "!contains(github.ref_name, '-')"
+    # Ждем сборку линукса, чтобы бинарник гарантированно лежал в релизах
+    needs: [setup, build-linux]
+    runs-on: ubuntu-latest
+    environment: aur
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Derive checksum
+        id: meta
+        shell: bash
+        run: |
+          set -euo pipefail
+          BIN_URL="https://github.com/dexoron/dcr/releases/download/${{ needs.setup.outputs.tag }}/dcr-x86_64-unknown-linux-musl-${{ needs.setup.outputs.version }}"
+          SHA256="$(curl -fsSL "$BIN_URL" | sha256sum | awk '{print $1}')"
+          echo "bin_url=$BIN_URL" >> "$GITHUB_OUTPUT"
+          echo "sha256=$SHA256" >> "$GITHUB_OUTPUT"
+
+      - name: Render AUR Metadata
+        shell: bash
+        run: |
+          set -euo pipefail
+          PKGVER='${{ needs.setup.outputs.version }}'
+          BIN_URL='${{ steps.meta.outputs.bin_url }}'
+          SHA256='${{ steps.meta.outputs.sha256 }}'
+
+          mkdir -p packages/aur/dcr-bin
+          cat > packages/aur/dcr-bin/PKGBUILD <<PKG
+          pkgname=dcr-bin
+          pkgver=${PKGVER}
+          pkgrel=1
+          pkgdesc="Cargo-like utility to manage C/C++ projects (pre-compiled musl binary)"
+          arch=('x86_64')
+          url="https://github.com/dexoron/dcr"
+          license=('GPL-3.0-or-later')
+          provides=('dcr')
+          conflicts=('dcr')
+          optdepends=(
+            'gcc: build C/C++ projects with GCC'
+            'clang: build C/C++ projects with Clang'
+          )
+          source_x86_64=("dcr-\$pkgver::${BIN_URL}")
+          sha256sums_x86_64=('${SHA256}')
+
+          package() {
+            install -Dm755 "\$srcdir/dcr-\$pkgver" "\$pkgdir/usr/bin/dcr"
+          }
+          PKG
+
+          cat > packages/aur/dcr-bin/.SRCINFO <<SRC
+          pkgbase = dcr-bin
+            pkgdesc = Cargo-like utility to manage C/C++ projects (pre-compiled musl binary)
+            pkgver = ${PKGVER}
+            pkgrel = 1
+            url = https://github.com/dexoron/dcr
+            arch = x86_64
+            license = GPL-3.0-or-later
+            provides = dcr
+            conflicts = dcr
+            optdepends = gcc: build C/C++ projects with GCC
+            optdepends = clang: build C/C++ projects with Clang
+            source_x86_64 = dcr-${PKGVER}::${BIN_URL}
+            sha256sums_x86_64 = ${SHA256}
+
+          pkgname = dcr-bin
+          SRC
+
+      - name: Push to AUR
+        env:
+          AUR_SSH_PRIVATE_KEY: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
+          AUR_PACKAGE: dcr-bin
+        shell: bash
+        run: |
+          set -euo pipefail
+          install -d -m 700 ~/.ssh
+          printf '%s\n' "$AUR_SSH_PRIVATE_KEY" > ~/.ssh/aur
+          chmod 600 ~/.ssh/aur
+          ssh-keyscan aur.archlinux.org >> ~/.ssh/known_hosts
+
+          export GIT_SSH_COMMAND='ssh -i ~/.ssh/aur -o IdentitiesOnly=yes'
+          git clone "ssh://aur@aur.archlinux.org/${AUR_PACKAGE}.git" aur-repo
+          cp packages/aur/dcr-bin/PKGBUILD aur-repo/PKGBUILD
+          cp packages/aur/dcr-bin/.SRCINFO aur-repo/.SRCINFO
+
+          cd aur-repo
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          if git diff --quiet; then
+            echo "No AUR changes"
+            exit 0
+          fi
+
+          git add PKGBUILD .SRCINFO
+          git commit -m "dcr-bin ${{ needs.setup.outputs.version }}"
+          git push
+
   # ── crates.io ──────────────────────────────────────────────────────────────
   publish-crates:
     if: |
@@ -321,6 +613,9 @@ jobs:
       (github.event_name == 'workflow_dispatch' && github.event.inputs.run_publish == 'true')
     needs: [setup, build-linux, build-macos, build-windows, build-bsd]
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
     steps:
       - uses: actions/checkout@v4
         with:
@@ -329,7 +624,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
 
       - name: Publish to crates.io
-        run: cargo publish --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: cargo publish
 
   # ── Homebrew tap ───────────────────────────────────────────────────────────
   publish-brew:

Cargo.lock

@@ -112,7 +112,7 @@ dependencies = [
 
 [[package]]
 name = "dcr"
-version = "0.6.8"
+version = "0.6.9"
 dependencies = [
  "ctrlc",
  "git2",

Cargo.toml

@@ -1,12 +1,46 @@
 [package]
 name = "dcr"
-version = "0.6.8"
+version = "0.6.9"
 edition = "2024"
 build = "build.rs"
 description = "DCR is a utility for managing C/C++ projects in a Cargo-like style."
 license = "GPL-3.0-or-later"
 repository = "https://github.com/dexoron/dcr"
 
+[package.metadata.binstall]
+pkg-fmt = "bin"
+pkg-url = "{ repo }/releases/download/v{ version }/dcr-{ target }-{ version }{ bin-suffix }"
+
+[package.metadata.deb]
+maintainer = "Dexoron (Bezotechestvo Vladimir) <main@dexoron.su>"
+copyright = "2026, Dexoron"
+license-file = ["LICENSE"]
+extended-description = """\
+Cargo-like utility to manage C/C++ projects.\
+"""
+section = "devel"
+priority = "optional"
+assets = [
+    ["target/release/dcr", "usr/bin/dcr", "755"],
+    # man-page:
+    # ["assets/dcr.1", "usr/share/man/man1/dcr.1", "644"],
+]
+
+[package.metadata.rpm]
+maintainer = "Dexoron (Bezotechestvo Vladimir) <main@dexoron.su>"
+copyright = "2026, Dexoron"
+license-file = ["LICENSE"]
+extended-description = """\
+Cargo-like utility to manage C/C++ projects.\
+"""
+section = "devel"
+priority = "optional"
+assets = [
+    ["target/release/dcr", "usr/bin/dcr", "755"],
+    # man-page:
+    # ["assets/dcr.1", "usr/share/man/man1/dcr.1", "644"],
+]
+
 [dependencies]
 glob = "0.3"
 reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "rustls-tls"] }

packaging/snap/snapcraft.yaml

@@ -0,0 +1,18 @@
+name: dcr
+base: core22
+version: '0.6.9'
+summary: Cargo-like utility to manage C/C++ projects
+description: |
+  A build tool and package manager for C/C++ projects inspired by Rust's Cargo.
+
+grade: stable
+confinement: classic
+
+apps:
+  dcr:
+    command: bin/dcr
+
+parts:
+  dcr:
+    plugin: dump
+    source: ../../dist/

src/cli/build.rs

@@ -69,7 +69,9 @@ pub fn build(args: &[String]) -> i32 {
 
     if flags.target.is_none() {
         let config_path = root.join("dcr.toml");
-        if let Ok(config) = Config::open(config_path.to_str().unwrap()) {
+        if let Ok(config) = Config::open(config_path.to_str().unwrap())
+            && !config.is_workspace_only()
+        {
             let bt = get_build_string_with_profile(&config, "target", "debug");
             if !bt.is_empty() {
                 flags.target = Some(bt);
@@ -100,6 +102,7 @@ pub fn build(args: &[String]) -> i32 {
             flags.target.as_deref(),
             flags.force,
             flags.verbose,
+            flags.workspace.as_deref(),
         )
     }) {
         Ok(()) => 0,
@@ -372,8 +375,13 @@ fn get_build_steps_with_profile(
     get_build_steps(config, &format!("build.{field}"))
 }
 
-fn ensure_target_dirs(items: &[String], profile: &str, target_dir: Option<String>) {
+fn ensure_target_dirs(
-    if !items.contains(&"target".to_string()) {
+    items: &[String],
+    profile: &str,
+    target_dir: Option<String>,
+    skip_local_target: bool,
+) {
+    if !skip_local_target && !items.contains(&"target".to_string()) {
         let _ = fs::create_dir("./target");
     }
     if let Some(dir) = &target_dir {
@@ -414,8 +422,38 @@ fn build_from_root(
     target: Option<&str>,
     force: bool,
     verbose: bool,
+    workspace: Option<&str>,
 ) -> Result<(), String> {
     let config = Config::open("./dcr.toml").map_err(|err| err.to_string())?;
+
+    if config.is_workspace_only() {
+        let ws = parse_workspace(&config, profile, target, root)?
+            .ok_or_else(|| "Workspace root has no members defined".to_string())?;
+        let members: Vec<_> = if let Some(filter_name) = workspace {
+            ws.members
+                .into_iter()
+                .filter(|m| m.name == filter_name)
+                .collect()
+        } else {
+            ws.members
+        };
+        if members.is_empty() {
+            return Err("No matching workspace members to build".to_string());
+        }
+        for member in &members {
+            build_project_at(
+                &member.path,
+                profile,
+                target,
+                &[],
+                force,
+                verbose,
+                Some(root),
+            )?;
+        }
+        return Ok(());
+    }
+
     let project_name = get_config_str(&config, "package.name");
     let project_version = get_config_str(&config, "package.version");
 
@@ -454,20 +492,50 @@ fn build_from_root(
                 )
             );
         }
-        if let Some(workspace) = parse_workspace(&config, profile, build_target.as_deref(), root)? {
+        if let Some(ws) = parse_workspace(&config, profile, build_target.as_deref(), root)? {
-            build_workspace(&workspace, profile, build_target.as_deref(), force, verbose)?;
+            if let Some(filter_name) = workspace {
-            let excludes: Vec<std::path::PathBuf> =
+                for member in ws.members.iter().filter(|m| m.name == filter_name) {
-                workspace.members.iter().map(|m| m.path.clone()).collect();
+                    build_project_at(
+                        &member.path,
+                        profile,
+                        build_target.as_deref(),
+                        &[],
+                        force,
+                        verbose,
+                        Some(root),
+                    )?;
+                }
+            } else {
+                build_workspace(
+                    &ws,
+                    profile,
+                    build_target.as_deref(),
+                    force,
+                    verbose,
+                    Some(root),
+                )?;
+                let excludes: Vec<std::path::PathBuf> =
+                    ws.members.iter().map(|m| m.path.clone()).collect();
+                build_project_at(
+                    root,
+                    profile,
+                    build_target.as_deref(),
+                    &excludes,
+                    force,
+                    verbose,
+                    None,
+                )?;
+            }
+        } else {
             build_project_at(
                 root,
                 profile,
                 build_target.as_deref(),
-                &excludes,
+                &[],
                 force,
                 verbose,
+                None,
             )?;
-        } else {
-            build_project_at(root, profile, build_target.as_deref(), &[], force, verbose)?;
         }
     }
     let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -485,9 +553,18 @@ fn build_workspace(
     target: Option<&str>,
     force: bool,
     verbose: bool,
+    workspace_root: Option<&Path>,
 ) -> Result<(), String> {
     for member in &workspace.members {
-        build_project_at(&member.path, profile, target, &[], force, verbose)?;
+        build_project_at(
+            &member.path,
+            profile,
+            target,
+            &[],
+            force,
+            verbose,
+            workspace_root,
+        )?;
     }
     Ok(())
 }
@@ -499,6 +576,7 @@ fn build_project_at(
     exclude_dirs: &[std::path::PathBuf],
     force: bool,
     verbose: bool,
+    workspace_root: Option<&Path>,
 ) -> Result<(), String> {
     with_dir(project_root, || {
         check_interrupted()?;
@@ -506,7 +584,22 @@ fn build_project_at(
         if !items.contains(&"dcr.toml".to_string()) {
             return Err("dcr.toml file not found".to_string());
         }
-        let config = Config::open("./dcr.toml").map_err(|err| err.to_string())?;
+        let mut config = Config::open("./dcr.toml").map_err(|err| err.to_string())?;
+        // Inherit build fields from workspace root if configured
+        if let Some(root) = workspace_root {
+            let has_inherit = config
+                .get("build.inherit")
+                .and_then(|v| v.as_bool())
+                .unwrap_or(false);
+            if has_inherit {
+                let root_path = root.join("dcr.toml");
+                if root_path.is_file() {
+                    let parent_config =
+                        Config::open(&root_path.to_string_lossy()).map_err(|e| e.to_string())?;
+                    config.merge_parent(&parent_config);
+                }
+            }
+        }
         let project_name = get_config_str(&config, "package.name");
         let project_version = get_config_str(&config, "package.version");
         let build_target_config = get_build_string_with_profile(&config, "target", profile);
@@ -598,8 +691,33 @@ fn build_project_at(
         let resolved_linker = resolve_tool("DCR_LD", tc_ld.as_deref());
         let resolved_archiver = resolve_tool("DCR_AR", tc_ar.as_deref());
 
-        let target_dir = build_target.map(|t| format!("target/{t}/{profile}"));
+        let target_dir_binding = match workspace_root {
-        ensure_target_dirs(&items, profile, target_dir);
+            Some(root) => {
+                let target_str = build_target
+                    .map(normalize_target_os)
+                    .filter(|t| !t.is_empty());
+                let rel: PathBuf = match target_str {
+                    Some(ref t) => Path::new("target").join(t).join(profile),
+                    None => {
+                        let default_dir = if cfg!(target_os = "linux") {
+                            let arch = std::env::consts::ARCH;
+                            format!("{arch}-unknown-linux-gnu/{profile}")
+                        } else {
+                            profile.to_string()
+                        };
+                        Path::new("target").join(&default_dir)
+                    }
+                };
+                root.join(&rel).to_string_lossy().to_string()
+            }
+            None => normalize_target(build_target.unwrap_or(""), profile).unwrap_or_default(),
+        };
+        let target_dir = if target_dir_binding.is_empty() {
+            None
+        } else {
+            Some(target_dir_binding.clone())
+        };
+        ensure_target_dirs(&items, profile, target_dir, workspace_root.is_some());
 
         let deps_table = config.get("dependencies").and_then(|v| v.as_table());
         let resolved = resolve_deps(&config, profile, build_target, project_root)?;
@@ -635,7 +753,15 @@ fn build_project_at(
                                 dep_root.display()
                             ));
                         }
-                        build_project_at(&dep_root, profile, build_target, &[], force, verbose)?;
+                        build_project_at(
+                            &dep_root,
+                            profile,
+                            build_target,
+                            &[],
+                            force,
+                            verbose,
+                            None,
+                        )?;
                         print!(
                             "\r{:100}\r       {} {} v{}",
                             "",
@@ -724,7 +850,6 @@ fn build_project_at(
             }
         }
 
-        let target_dir_binding = normalize_target(build_target.unwrap_or(""), profile);
         let version_info = parse_version_info(&project_version);
         let substitute = |s: &str| -> String {
             s.replace("{profile}", profile)
@@ -749,7 +874,11 @@ fn build_project_at(
             standard: &build_standard,
             cxx_standard: &build_cxx_standard,
             target: build_target,
-            target_dir: target_dir_binding.as_deref(),
+            target_dir: if target_dir_binding.is_empty() {
+                None
+            } else {
+                Some(target_dir_binding.as_str())
+            },
             kind: normalize_kind(&build_kind),
             platform: normalize_platform(&build_platform),
             linker: resolved_linker.as_deref(),

src/cli/flags.rs

@@ -21,6 +21,7 @@ use crate::utils::log::warn;
 pub struct BuildRunFlags {
     pub profile: String,
     pub target: Option<String>,
+    pub workspace: Option<String>,
     pub force: bool,
     pub clean: bool,
     pub verbose: bool,
@@ -29,6 +30,7 @@ pub struct BuildRunFlags {
 pub fn parse_build_run_flags(args: &[String]) -> Result<BuildRunFlags, i32> {
     let mut profile = PROFILE.to_string();
     let mut target = None;
+    let mut workspace = None;
     let mut force = false;
     let mut clean = false;
     let mut verbose = false;
@@ -52,6 +54,15 @@ pub fn parse_build_run_flags(args: &[String]) -> Result<BuildRunFlags, i32> {
             verbose = true;
             continue;
         }
+        if candidate == "workspace" {
+            if let Some(w) = iter.next() {
+                workspace = Some(w.clone());
+            } else {
+                warn("--workspace requires a value");
+                return Err(1);
+            }
+            continue;
+        }
         if candidate == "target" {
             if let Some(t) = iter.next() {
                 target = Some(t.clone());
@@ -76,6 +87,7 @@ pub fn parse_build_run_flags(args: &[String]) -> Result<BuildRunFlags, i32> {
     Ok(BuildRunFlags {
         profile,
         target,
+        workspace,
         force,
         clean,
         verbose,

src/cli/run.rs

@@ -24,6 +24,7 @@ use crate::utils::fs::find_project_root;
 use crate::utils::fs::with_dir;
 use crate::utils::log::error;
 use crate::utils::text::{BOLD_GREEN, colored};
+use std::path::Path;
 use std::process::Command;
 
 fn get_run_cmd(
@@ -82,18 +83,82 @@ pub fn run(args: &[String]) -> i32 {
             return 1;
         }
     };
+
+    let flags = match parse_build_run_flags(args) {
+        Ok(v) => v,
+        Err(_) => return 1,
+    };
+
+    // Handle workspace-only root: delegate to workspace member
+    if config.is_workspace_only() {
+        let ws = match crate::core::workspace::parse_workspace(
+            &config,
+            &flags.profile,
+            flags.target.as_deref(),
+            &root,
+        ) {
+            Ok(Some(ws)) => ws,
+            Ok(None) => {
+                error("Workspace root has no members defined");
+                return 1;
+            }
+            Err(e) => {
+                error(&e);
+                return 1;
+            }
+        };
+        let member = match &flags.workspace {
+            Some(name) => ws.members.iter().find(|m| m.name == *name),
+            None => ws.main_member(),
+        };
+        let member = match member {
+            Some(m) => m,
+            None => {
+                if let Some(name) = &flags.workspace {
+                    error(&format!("Workspace member '{name}' not found"));
+                } else {
+                    error("No workspace member to run (set `main = true` on one member)");
+                }
+                return 1;
+            }
+        };
+        // Build and run from the member's directory
+        return match with_dir(&member.path, || {
+            run_project(&member.path, &flags, Some(root.as_path()))
+        }) {
+            Ok(code) => code,
+            Err(e) => {
+                error(&e);
+                1
+            }
+        };
+    }
+
+    match run_project(&root, &flags, None) {
+        Ok(code) => code,
+        Err(e) => {
+            error(&e);
+            1
+        }
+    }
+}
+
+fn run_project(
+    root: &Path,
+    flags: &crate::cli::flags::BuildRunFlags,
+    workspace_root: Option<&Path>,
+) -> Result<i32, String> {
+    let config =
+        Config::open(root.join("dcr.toml").to_str().unwrap()).map_err(|err| err.to_string())?;
+
     let project_name: &str = config
         .get("package.name")
         .and_then(|v| v.as_str())
         .unwrap_or("");
 
-    let mut flags = match parse_build_run_flags(args) {
-        Ok(v) => v,
-        Err(_) => return 1,
-    };
-
     // If no target specified, use default host target for target-specific config
-    if flags.target.is_none() {
+    let mut target = flags.target.clone();
+    if target.is_none() {
         let default_target = if cfg!(target_os = "linux") {
             "x86_64-unknown-linux-gnu"
         } else if cfg!(target_os = "macos") {
@@ -103,7 +168,7 @@ pub fn run(args: &[String]) -> i32 {
         } else {
             "unknown"
         };
-        flags.target = Some(default_target.to_string());
+        target = Some(default_target.to_string());
     }
 
     let build_kind = config
@@ -112,25 +177,30 @@ pub fn run(args: &[String]) -> i32 {
         .or_else(|| config.get("build.kind").and_then(|v| v.as_str()))
         .unwrap_or("");
 
-    let normalized_target_dir = flags
+    let normalized_target_dir = match workspace_root {
-        .target
+        Some(wr) => target
-        .as_ref()
+            .as_ref()
-        .and_then(|t| crate::cli::build::normalize_target(t, &flags.profile));
+            .and_then(|t| crate::cli::build::normalize_target(t, &flags.profile))
+            .map(|rel| wr.join(&rel).to_string_lossy().to_string()),
+        None => target
+            .as_ref()
+            .and_then(|t| crate::cli::build::normalize_target(t, &flags.profile)),
+    };
 
     let version = config
         .get("package.version")
         .and_then(|v| v.as_str())
         .unwrap_or("");
-    let run_cmd = get_run_cmd(&config, &flags.profile, flags.target.as_deref(), version);
+    let run_cmd = get_run_cmd(&config, &flags.profile, target.as_deref(), version);
 
     let kind = build_kind.trim();
     if run_cmd.is_none()
         && (kind == "staticlib" || kind == "sharedlib" || kind == "efi" || kind == "elf")
     {
-        error("Cannot run library build");
+        return Err("Cannot run library build".to_string());
-        return 1;
     }
-    let build_status = build(args);
+
+    let build_status = build(&args_for_build(flags));
     let bin_path = crate::platform::bin_path(
         &flags.profile,
         project_name,
@@ -140,15 +210,15 @@ pub fn run(args: &[String]) -> i32 {
         if let Some(cmd) = run_cmd {
             println!("\n    {} {}", colored("Running", BOLD_GREEN), cmd);
             println!("--------------------------------");
-            return run_shell(&cmd);
+            return Ok(run_shell(&cmd));
         }
         println!("\n    {} {}", colored("Running", BOLD_GREEN), bin_path);
         println!("--------------------------------");
-        return run_binary(
+        return Ok(run_binary(
             project_name,
             &flags.profile,
             normalized_target_dir.as_deref(),
-        );
+        ));
     }
 
     let fallback_code = if let Some(cmd) = run_cmd {
@@ -161,11 +231,27 @@ pub fn run(args: &[String]) -> i32 {
         )
     };
     if fallback_code != 1 {
-        return fallback_code;
+        return Ok(fallback_code);
     }
 
-    error("Fix errors in the code to run the project");
+    Err("Fix errors in the code to run the project".to_string())
-    1
+}
+
+fn args_for_build(flags: &crate::cli::flags::BuildRunFlags) -> Vec<String> {
+    let mut args = Vec::new();
+    args.push(format!("--{}", flags.profile));
+    if let Some(ref target) = flags.target {
+        args.push("--target".to_string());
+        args.push(target.clone());
+    }
+    if let Some(ref name) = flags.workspace {
+        args.push("--workspace".to_string());
+        args.push(name.clone());
+    }
+    if flags.verbose {
+        args.push("--verbose".to_string());
+    }
+    args
 }
 
 fn run_shell(cmd: &str) -> i32 {

src/core/config.rs

@@ -77,8 +77,10 @@ pub struct Config {
 #[allow(dead_code)]
 #[derive(Debug, Clone, Deserialize)]
 pub struct DcrConfig {
-    pub package: PackageConfig,
+    #[serde(default)]
-    pub build: BuildConfig,
+    pub package: Option<PackageConfig>,
+    #[serde(default)]
+    pub build: Option<BuildConfig>,
     #[serde(default)]
     pub dependencies: BTreeMap<String, DependencyConfig>,
     #[serde(default)]
@@ -123,6 +125,8 @@ pub struct BuildConfig {
     pub clean: Vec<String>,
     #[serde(default)]
     pub src_disable: Option<bool>,
+    #[serde(default)]
+    pub workspace_only: bool,
 }
 
 #[derive(Debug, Clone, Deserialize)]
@@ -201,13 +205,100 @@ impl Config {
     }
 
     #[allow(dead_code)]
-    pub fn package(&self) -> &PackageConfig {
+    pub fn package(&self) -> Option<&PackageConfig> {
-        &self.typed.package
+        self.typed.package.as_ref()
     }
 
     #[allow(dead_code)]
-    pub fn build_config(&self) -> &BuildConfig {
+    pub fn build_config(&self) -> Option<&BuildConfig> {
-        &self.typed.build
+        self.typed.build.as_ref()
+    }
+
+    pub fn is_workspace_only(&self) -> bool {
+        self.typed
+            .build
+            .as_ref()
+            .map(|b| b.workspace_only)
+            .unwrap_or(false)
+            && !self.typed.workspace.is_empty()
+    }
+
+    /// Merge build fields from parent config into self where self has empty/default values.
+    /// Used for workspace member inheritance (build.inherit = true).
+    pub fn merge_parent(&mut self, parent: &Config) {
+        let fields: &[&str] = &[
+            "language",
+            "standard",
+            "cxx_standard",
+            "compiler",
+            "kind",
+            "target",
+            "platform",
+            "cflags",
+            "ldflags",
+            "exclude",
+            "include",
+            "roots",
+            "clean",
+            "src_disable",
+        ];
+        let parent_build = match parent.data.get("build").and_then(|v| v.as_table()) {
+            Some(t) => t.clone(),
+            None => return,
+        };
+
+        let self_build = self
+            .data
+            .get("build")
+            .and_then(|v| v.as_table())
+            .cloned()
+            .unwrap_or_default();
+
+        let mut changes: Vec<(String, toml::Value)> = Vec::new();
+
+        for field in fields {
+            let val = match parent_build.get(*field) {
+                Some(v) => v,
+                None => continue,
+            };
+
+            let self_val = self_build.get(*field);
+            let should_inherit = match val {
+                toml::Value::Array(_) => self_val.is_none(),
+                toml::Value::String(_) => self_val
+                    .and_then(|v| v.as_str())
+                    .map(|s| s.trim().is_empty())
+                    .unwrap_or(true),
+                _ => self_val.is_none(),
+            };
+            if should_inherit {
+                changes.push((field.to_string(), val.clone()));
+            }
+        }
+
+        if changes.is_empty() {
+            return;
+        }
+
+        if !self.data.is_table() {
+            let mut m = Map::new();
+            m.insert("build".to_string(), toml::Value::Table(Map::new()));
+            self.data = toml::Value::Table(m);
+        }
+
+        let tbl = self.data.as_table_mut().unwrap();
+        let build_tbl = tbl
+            .entry("build".to_string())
+            .or_insert_with(|| toml::Value::Table(Map::new()));
+        if let Some(build_tbl) = build_tbl.as_table_mut() {
+            for (key, val) in changes {
+                build_tbl.entry(key).or_insert(val);
+            }
+        }
+
+        if let Ok(typed) = parse_typed_config(&self.data) {
+            self.typed = typed;
+        }
     }
 
     pub fn get(&self, key: &str) -> Option<&Value> {
@@ -229,15 +320,29 @@ impl Config {
     }
 
     pub fn validate(&self) -> Result<(), ConfigError> {
-        if self.typed.package.name.trim().is_empty() {
+        if self.is_workspace_only() {
+            return self.validate_workspace();
+        }
+
+        let pkg =
+            self.typed.package.as_ref().ok_or_else(|| {
+                ConfigError::Invalid("missing [package] section (required)".into())
+            })?;
+        let build = self
+            .typed
+            .build
+            .as_ref()
+            .ok_or_else(|| ConfigError::Invalid("missing [build] section (required)".into()))?;
+
+        if pkg.name.trim().is_empty() {
             return Err(ConfigError::Invalid("package.name is empty".into()));
         }
-        if self.typed.package.version.trim().is_empty() {
+        if pkg.version.trim().is_empty() {
             return Err(ConfigError::Invalid("package.version is empty".into()));
         }
-        validate_package_name(&self.typed.package.name)?;
+        validate_package_name(&pkg.name)?;
 
-        if let Some(pkg_type) = &self.typed.package.pkg_type {
+        if let Some(pkg_type) = &pkg.pkg_type {
             let pkg_type = pkg_type.trim();
             if !pkg_type.is_empty() && pkg_type != "lib" && pkg_type != "app" && pkg_type != "none"
             {
@@ -247,32 +352,32 @@ impl Config {
             }
         }
 
-        validate_language_config(&self.typed.build.language, "build.language")?;
+        validate_language_config(&build.language, "build.language")?;
-        if self.typed.build.standard.trim().is_empty() {
+        if build.standard.trim().is_empty() {
             return Err(ConfigError::Invalid("build.standard is empty".into()));
         }
-        if self.typed.build.compiler.trim().is_empty() {
+        if build.compiler.trim().is_empty() {
             return Err(ConfigError::Invalid("build.compiler is empty".into()));
         }
-        if let Some(platform) = &self.typed.build.platform
+        if let Some(platform) = &build.platform
             && platform.trim().is_empty()
         {
             return Err(ConfigError::Invalid("build.platform is empty".into()));
         }
         validate_toolchain(self.typed.toolchain.as_ref())?;
-        if let Some(kind) = &self.typed.build.kind {
+        if let Some(kind) = &build.kind {
             let kind = kind.trim();
             if !kind.is_empty() && !VALID_KINDS.contains(&kind) {
                 return Err(ConfigError::Invalid("build.kind is invalid".into()));
             }
         }
-        validate_string_list(&self.typed.build.exclude, "build.exclude")?;
+        validate_string_list(&build.exclude, "build.exclude")?;
-        validate_string_list(&self.typed.build.include, "build.include")?;
+        validate_string_list(&build.include, "build.include")?;
-        validate_string_list(&self.typed.build.roots, "build.roots")?;
+        validate_string_list(&build.roots, "build.roots")?;
-        validate_string_list(&self.typed.build.clean, "build.clean")?;
+        validate_string_list(&build.clean, "build.clean")?;
-        validate_string_list(&self.typed.build.cflags, "build.cflags")?;
+        validate_string_list(&build.cflags, "build.cflags")?;
-        validate_string_list(&self.typed.build.ldflags, "build.ldflags")?;
+        validate_string_list(&build.ldflags, "build.ldflags")?;
-        if let Some(target) = &self.typed.build.target {
+        if let Some(target) = &build.target {
             validate_non_empty_string(target, "build.target")?;
         }
         for profile in ["release", "debug"] {
@@ -824,10 +929,10 @@ mod tests {
             "[package]\nname = \"typed\"\nversion = \"1.2.3\"\ntype = \"lib\"\n\n[build]\nlanguage = [\"c\", \"c++\"]\nstandard = \"c11\"\ncompiler = \"clang\"\nkind = \"staticlib\"\ncflags = [\"-Wall\"]\n\n[dependencies]\nfoo = \"1.0.0\"\n",
         );
         let config = Config::open(&path.to_string_lossy()).unwrap();
-        assert_eq!(config.package().name, "typed");
+        assert_eq!(config.package().unwrap().name, "typed");
-        assert_eq!(config.typed().package.version, "1.2.3");
+        assert_eq!(config.typed().package.as_ref().unwrap().version, "1.2.3");
-        assert_eq!(config.build_config().compiler, "clang");
+        assert_eq!(config.build_config().unwrap().compiler, "clang");
-        assert_eq!(config.build_config().cflags, ["-Wall"]);
+        assert_eq!(config.build_config().unwrap().cflags, ["-Wall"]);
         assert!(config.typed().dependencies.contains_key("foo"));
     }
 

src/core/workspace.rs

@@ -26,6 +26,7 @@ pub struct WorkspaceMember {
     pub name: String,
     pub path: PathBuf,
     pub deps: Vec<String>,
+    pub main: bool,
 }
 
 #[derive(Debug, Clone)]
@@ -33,6 +34,15 @@ pub struct Workspace {
     pub members: Vec<WorkspaceMember>,
 }
 
+impl Workspace {
+    pub fn main_member(&self) -> Option<&WorkspaceMember> {
+        self.members
+            .iter()
+            .find(|m| m.main)
+            .or_else(|| self.members.first())
+    }
+}
+
 pub fn parse_workspace(
     config: &Config,
     profile: &str,
@@ -85,6 +95,7 @@ pub fn parse_workspace(
             name: name.to_string(),
             path,
             deps,
+            main: tbl.get("main").and_then(|v| v.as_bool()).unwrap_or(false),
         });
     }