mirror of
https://github.com/webinstall/webi-installers.git
synced 2026-05-18 22:56:35 +00:00
631147901a
Rewrites the Node.js release classification pipeline in Go. webicached fetches upstream releases (GitHub, Gitea, GitLab, HashiCorp, custom sources), classifies assets by OS/arch/variant, and writes legacy-format JSON caches compatible with the existing webinstall.dev API. Git-clone packages emit git_tag and git_commit_hash from real repo clones — no fabricated refs.
95 lines
2.9 KiB
Go
95 lines
2.9 KiB
Go
// Package flutterdist fetches Flutter release data from Google Storage.
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//
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// Flutter publishes per-OS release indexes:
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//
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// https://storage.googleapis.com/flutter_infra_release/releases/releases_macos.json
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// https://storage.googleapis.com/flutter_infra_release/releases/releases_linux.json
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// https://storage.googleapis.com/flutter_infra_release/releases/releases_windows.json
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//
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// Each response has a base_url and a releases array with version, channel,
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// release_date, archive path, and sha256.
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package flutterdist
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import (
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"context"
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"encoding/json"
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"fmt"
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"iter"
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"net/http"
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)
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// index is the top-level JSON structure for one OS endpoint.
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type index struct {
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BaseURL string `json:"base_url"`
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Releases []Release `json:"releases"`
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}
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// Release is one Flutter release entry.
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type Release struct {
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Hash string `json:"hash"` // git commit hash
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Channel string `json:"channel"` // "stable", "beta", "dev"
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Version string `json:"version"` // "3.29.2"
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ReleaseDate string `json:"release_date"` // "2025-03-13T00:14:34.044690Z"
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Archive string `json:"archive"` // "stable/macos/flutter_macos_arm64_3.29.2-stable.zip"
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SHA256 string `json:"sha256"`
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// DownloadURL is the fully-qualified URL, assembled from base_url + archive.
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// Not in the upstream JSON — set by Fetch.
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DownloadURL string `json:"download_url"`
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// OS is the platform this entry came from ("macos", "linux", "windows").
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// Not in the upstream JSON — set by Fetch.
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OS string `json:"os"`
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}
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var defaultOSes = []string{"macos", "linux", "windows"}
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// Fetch retrieves Flutter releases for all platforms.
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//
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// Yields one batch per OS. The iterator interface exists so callers use
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// the same pattern as paginated sources.
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func Fetch(ctx context.Context, client *http.Client) iter.Seq2[[]Release, error] {
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return func(yield func([]Release, error) bool) {
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for _, osName := range defaultOSes {
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url := fmt.Sprintf(
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"https://storage.googleapis.com/flutter_infra_release/releases/releases_%s.json",
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osName,
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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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yield(nil, fmt.Errorf("flutterdist: %w", err))
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return
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}
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req.Header.Set("Accept", "application/json")
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resp, err := client.Do(req)
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if err != nil {
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yield(nil, fmt.Errorf("flutterdist: fetch %s: %w", osName, err))
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return
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}
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var idx index
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err = json.NewDecoder(resp.Body).Decode(&idx)
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resp.Body.Close()
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if err != nil {
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yield(nil, fmt.Errorf("flutterdist: decode %s: %w", osName, err))
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return
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}
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if resp.StatusCode != http.StatusOK {
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yield(nil, fmt.Errorf("flutterdist: fetch %s: %s", osName, resp.Status))
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return
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}
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for i := range idx.Releases {
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idx.Releases[i].DownloadURL = idx.BaseURL + "/" + idx.Releases[i].Archive
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idx.Releases[i].OS = osName
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}
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if !yield(idx.Releases, nil) {
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return
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}
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}
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}
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}
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