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submarine/docs
simonfrankenandClaude Sonnet 5.5 f287d6009f Draw diverged commits on the spine as a fork
A tip, checkout or committed pin that has diverged from the pin gets its
own lane, which joins the main lane at a "base" node: the merge base of
the two, with its SHA and subject. Only one diverged commit is drawn as a
fork; with two, or without a merge base, the nodes stay in a line with
the "diverged" gap.

Add Status.Bases, filled by the git provider with `merge-base` for each
diverged commit.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-23 16:40:25 +02:00
..

submarine — documentation

submarine is a terminal UI for git repositories with many (recursively nested) submodules. It shows the submodules, as a collapsible tree (plus the state of the superproject itself in the header), and describes each pin as a branch plus distance (origin/main ↓1) instead of a bare commit hash.

Documents

Document Contents
requirements.md What the tool must do: functional and non-functional requirements
state-model.md How a submodule's state is determined, summarized into issues, and how pins are resolved to refs
ux-guide.md Layout, attention hierarchy, colors, wording, navigation and key bindings
architecture.md Package layout, the provider boundary, async loading, testing
actions.md the write actions restore and switch branch (done) and stage pin (draft)
decisions.md Decision log with rationale (ADR style)

Install

curl -fsSL https://git.simon-franken.de/simonfranken/submarine/raw/branch/main/install.sh | sh

Installs submarine and the alias sub (linux/macOS, amd64/arm64) to ~/.local/bin. Update with submarine update. Maintainers publish with GITEA_TOKEN=… make release (see architecture).

Status

Prototype. The UI is complete for browsing. It reads real repositories through a git provider (internal/submodule/git): submarine [dir]. It fetches only when asked (f) and follows changes made in other shells. submarine --mock shows the built-in mock data (internal/submodule/mock). ! shows only submodules with problems. x restores the selection and b switches its branch (actions.md); stage pin is drafted there.

Next steps, roughly in order:

  1. Stage pin, see actions.md. (Restore and switch branch are done.)
  2. (done) "Problems only" (!) view, reusing the tree's filter.