dockerfetch

Imported from whyhilde/dockerfetch (AGENTS.md). Install upstream with npx skills add whyhilde/dockerfetch. Copyright stays with the author.

dockerfetch

Neofetch-style CLI for Docker info.

Build & Verify

go build -o dockerfetch .
go run .                    # full output
go run . --short            # essential only
go run . --json             # JSON output
go run . --no-color         # monochrome
go vet ./...
go test ./...
gofmt -s -w .               # format

Package layout

main.go                     # flags, orchestration
internal/docker/client.go   # Docker SDK — Fetch() returns *DockerInfo
internal/docker/types.go    # DockerInfo, ContainerSummary, Line
internal/ascii/logo.go      # ASCII art constants (Fedora, Ubuntu, Debian, Arch, Alpine, macOS)
internal/display/render.go  # side-by-side table + JSON
internal/display/color.go   # ANSI wrappers, NoColor flag
internal/system/info.go     # host OS, kernel, uptime, OSID

Key decisions

• ASCII default: OS logo detected from /etc/os-release; falls back to Ubuntu
• Connection: Unix socket + DOCKER_HOST env (via Docker SDK's FromEnv)
• Flags: --short, --no-color, --json
• Colors: ANSI by default; --no-color disables
• Field order: OS → Docker → API → Cgroup → Storage → Root → CPUs → Memory → Containers → Images → Volumes → Networks
• Container statuses: running / paused / stopped — from docker info directly
• Networks filter: built-in ingress networks excluded
• OS detection: system.Get() reads /etc/os-release for ID= field; logo selected by ascii.Get(osID)
• Logos sourced from: fastfetch — backtick characters replaced with ' to avoid Go raw string conflicts

Notes

• Requires running Docker daemon
• Docker SDK pulled via go mod tidy (github.com/moby/moby/client + api)
• ANSI codes use \033 literals (not \e)
• The internal/system/info.go reads /proc (Linux only); Darwin/Windows fall back to runtime.GOOS