jcoffey-dev
77e80cb9f2
119 SPDX-FileCopyrightText headers and the README's licence line. The distinction that matters here: LINUXexpert-org appears in this repository in two completely different roles. As a copyright holder in the SPDX headers, which is what changes, and as the GitHub organisation in the module path and 64 import statements, which does not -- the repository still lives at github.com/LINUXexpert-org/stalwart-migrator, and rewriting that would not be a licence change, it would break the build. Both replacements are anchored to their copyright forms, so an import path cannot match either. Import count is 64 before and after, and go.mod is untouched. LICENSE untouched: the FSF's copyright on the GPL text and the "<name of author>" placeholders are not ours to edit. go vet, go build and go test all clean.
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
// SPDX-FileCopyrightText: 2026 Coffey Labs
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// SPDX-License-Identifier: GPL-3.0-or-later
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package recovery
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import (
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"context"
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"fmt"
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"net/http"
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"time"
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)
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// WaitForHealthy polls url until it responds (any status - even 401 proves
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// the HTTP server itself is up and routing requests, which is what this
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// check exists to confirm) or timeout elapses, returning a descriptive
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// error on timeout rather than hanging indefinitely. This is what makes
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// recovery mode's startup supervised rather than fire-and-forget - see
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// ARCHITECTURE.md §4.4.
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func WaitForHealthy(ctx context.Context, httpClient *http.Client, url string, timeout time.Duration) error {
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if httpClient == nil {
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httpClient = &http.Client{Timeout: 5 * time.Second}
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}
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deadline := time.Now().Add(timeout)
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var lastErr error
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for time.Now().Before(deadline) {
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if err := ctx.Err(); err != nil {
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return err
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
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if err != nil {
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return err
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}
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resp, err := httpClient.Do(req)
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if err != nil {
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lastErr = err
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} else {
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resp.Body.Close()
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return nil
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}
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select {
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case <-ctx.Done():
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return ctx.Err()
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case <-time.After(250 * time.Millisecond):
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}
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}
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return fmt.Errorf("recovery: %s did not become reachable within %s: %w", url, timeout, lastErr)
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}
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