chore: add justfile for build and AUR release automation

Recipes:
- build, release, run, test, check, fmt, clean
- show-version, bump, tag
- aur-update, aur-publish, aur-test
- release-full (complete release workflow)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

justfile

@@ -0,0 +1,138 @@
+# Owlry build and release automation
+
+# Default recipe
+default:
+    @just --list
+
+# Build debug
+build:
+    cargo build
+
+# Build release
+release:
+    cargo build --release
+
+# Run in debug mode
+run *ARGS:
+    cargo run -- {{ARGS}}
+
+# Run tests
+test:
+    cargo test
+
+# Check code
+check:
+    cargo check
+    cargo clippy
+
+# Format code
+fmt:
+    cargo fmt
+
+# Clean build artifacts
+clean:
+    cargo clean
+
+# === Release Management ===
+
+# AUR package directory
+aur_dir := "/home/cnachtigall/data/git/aur/owlry"
+
+# Get current version from Cargo.toml
+version := `grep '^version' Cargo.toml | head -1 | sed 's/.*"\(.*\)"/\1/'`
+
+# Show current version
+show-version:
+    @echo "Current version: {{version}}"
+
+# Bump version (usage: just bump 0.2.0)
+bump new_version:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    echo "Bumping version from {{version}} to {{new_version}}"
+    sed -i 's/^version = ".*"/version = "{{new_version}}"/' Cargo.toml
+    cargo check
+    git add Cargo.toml Cargo.lock
+    git commit -m "chore: bump version to {{new_version}}"
+    echo "Version bumped to {{new_version}}"
+
+# Create and push a release tag
+tag:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    echo "Creating tag v{{version}}"
+    git tag -a "v{{version}}" -m "Release v{{version}}"
+    git push origin "v{{version}}"
+    echo "Tag v{{version}} pushed"
+
+# Update AUR package
+aur-update:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    cd "{{aur_dir}}"
+
+    echo "Updating PKGBUILD to version {{version}}"
+    sed -i 's/^pkgver=.*/pkgver={{version}}/' PKGBUILD
+    sed -i 's/^pkgrel=.*/pkgrel=1/' PKGBUILD
+
+    # Update checksums
+    echo "Updating checksums..."
+    updpkgsums
+
+    # Generate .SRCINFO
+    echo "Generating .SRCINFO..."
+    makepkg --printsrcinfo > .SRCINFO
+
+    # Show diff
+    git diff
+
+    echo ""
+    echo "AUR package updated. Review changes above."
+    echo "Run 'just aur-publish' to commit and push."
+
+# Publish AUR package
+aur-publish:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    cd "{{aur_dir}}"
+
+    git add PKGBUILD .SRCINFO
+    git commit -m "Update to v{{version}}"
+    git push
+
+    echo "AUR package v{{version}} published!"
+
+# Test AUR package build locally
+aur-test:
+    #!/usr/bin/env bash
+    set -euo pipefail
+    cd "{{aur_dir}}"
+
+    echo "Testing PKGBUILD..."
+    makepkg -sf
+
+    echo ""
+    echo "Package built successfully!"
+    ls -lh *.pkg.tar.zst
+
+# Full release workflow (bump + tag + aur)
+release-full new_version: (bump new_version)
+    #!/usr/bin/env bash
+    set -euo pipefail
+
+    # Push version bump
+    git push
+
+    # Create and push tag
+    just tag
+
+    # Wait for tag to be available
+    echo "Waiting for tag to propagate..."
+    sleep 2
+
+    # Update AUR
+    just aur-update
+
+    echo ""
+    echo "Release v{{new_version}} prepared!"
+    echo "Review AUR changes, then run 'just aur-publish'"