Files
artifactapi/internal/api/v1/gems_virtual.go
T
unkin-agent 18c58dc9c7 Add gems virtual repositories (#154)
Bundler needs one source for internal and public gems, but gems virtuals have no merger, so a local gems repo and rubygems.org cannot be served together.

- merge `info/<gem>` across members (member order wins a duplicate version-platform); pass a single-member gem through verbatim
- regenerate `versions` lines and md5s for gems several members list; union `names`
- 302 `gems/*.gem` and `quick/Marshal.4.8/*` to the member owning that version, via the shared member-path validation
- return 502 on a member error; cache merges in the shared virtual cache; route HEAD on virtuals
- add `docs/gems/virtual.md` and a stock `ruby:3.3` bundler e2e-docker case

Reviewed-on: #154
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-10-18 02:07:52 +11:00

40 lines
1.2 KiB
Go

package v1
import (
"errors"
"log/slog"
"net/http"
"git.unkin.net/unkin/artifactapi/internal/virtual"
"git.unkin.net/unkin/artifactapi/pkg/models"
)
// serveVirtualGems serves the merged compact index and 302s downloads to the
// member owning that version.
func (h *ProxyHandler) serveVirtualGems(w http.ResponseWriter, r *http.Request, virt models.Virtual, path, proxyBaseURL string) {
var body []byte
var loc string
var err error
if isGemsIndexPath(path) {
body, _, err = h.virtualEngine.FetchGems(r.Context(), virt, path)
} else {
loc, err = h.virtualEngine.GemsRedirect(r.Context(), virt, path, r.URL.RawQuery, proxyBaseURL)
}
switch {
case errors.Is(err, virtual.ErrNotFound):
gemsText(w, http.StatusNotFound, "not found")
case errors.Is(err, virtual.ErrBadPath):
gemsText(w, http.StatusBadRequest, err.Error())
case err != nil:
slog.Error("virtual gems fetch failed", "virtual", virt.Name, "path", path, "error", err)
gemsText(w, http.StatusBadGateway, "bad gateway")
case loc != "":
w.Header().Set("Cache-Control", "no-store")
w.Header().Set("Vary", "Host, X-Forwarded-Proto")
http.Redirect(w, r, loc, http.StatusFound)
default:
w.Header().Set("X-Artifact-Source", "virtual")
gemsText(w, http.StatusOK, string(body))
}
}