devproxy

package

v0.66.1 Latest Latest Go to latest Published: Oct 25, 2026 License: MIT Imports: 8 Imported by: 0

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Repository

github.com/colonyops/hive

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Documentation ¶

Overview ¶

Package devproxy is the contract shared by cmd/desktop/devserver and cmd/desktop/devtools: where the development GitHub proxy listens, and how to tell whether one is already running there.

It exists because the proxy is a singleton by design (ADR devserver-github-proxy). devserver needs to know if it is a duplicate launch, and devtools needs to point a worktree's launch.env at the same address and fail loudly when nothing is listening. Duplicating either fact would let the two drift into a setup where the app is redirected at a port no proxy owns.

Index ¶

Constants
func BaseURL(listen string) string
func ListenFromConfig(root string) string
type Health
type Status
- func Probe(ctx context.Context, baseURL string) Status

Constants ¶

View Source

const DefaultListen = "127.0.0.1:7777"

DefaultListen is the proxy's bind address when the config omits one. It is a fixed loopback port rather than an allocated one precisely because every instance has to find it without discovery.

View Source

const EnvAPIBase = "HIVE_DESKTOP_DEVELOPMENT_GITHUB_API_BASE"

EnvAPIBase names the desktop setting this package's address feeds. It is duplicated from cmd/desktop/internal/app/settings rather than imported because cmd/desktop/devserver must not depend on an app package for a string (ADR devserver-github-proxy: the app does not import devserver and devserver does not import the app), and both binaries need the name — devtools to read it, devserver to name it in the hint it prints at startup. cmd/desktop/devtools imports both packages and asserts the two spellings agree.

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const HealthPath = "/_ctl/health"

HealthPath answers the "are you already running?" probe. It is deliberately cheaper than /_ctl/state, which builds a full overlay and scenario snapshot.

View Source

const RepoConfigPath = "cmd/desktop/devserver/devserver.yaml"

RepoConfigPath is the checked-in development config, relative to the repository root. Development configuration lives in the repo, not in a user's home directory: it is versioned with the code whose behaviour it simulates, and a fresh clone gets working scenarios with no setup step.

Variables ¶

This section is empty.

Functions ¶

func BaseURL ¶

func BaseURL(listen string) string

BaseURL is the API base a desktop instance sets to route through a proxy listening at listen.

func ListenFromConfig ¶

func ListenFromConfig(root string) string

ListenFromConfig reads the bind address out of the checked-in config at root, falling back to DefaultListen when the file is absent or declares no listen. The config is the single source of truth for the port, so a change there reaches launch.env without anyone editing two places.

Types ¶

type Health ¶

type Health struct {
	Devserver bool `json:"devserver"`
}

Health is the probe payload. The Devserver field is the marker that distinguishes our proxy from any other process holding the port — binding blindly over a stranger's listener would be a confusing way to fail.

type Status ¶

type Status int

Status is what a probe found at an address.

const (
	// StatusAbsent means nothing is listening: this process may bind.
	StatusAbsent Status = iota
	// StatusRunning means our devserver already owns the address.
	StatusRunning
	// StatusForeign means something answered but is not devserver.
	StatusForeign
)

func Probe ¶

func Probe(ctx context.Context, baseURL string) Status

Probe reports what is answering at baseURL. A dial failure is StatusAbsent rather than an error: "nothing there" is the normal case for both callers, and only a caller can say whether it is a problem.

Source Files ¶

View all Source files

devproxy.go

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