git-pages/server/gitea/cache.go

package gitea

import (
	"net/http"
	"time"
)

type FileResponse struct {
	Exists    bool
	IsSymlink bool
	ETag      string
	MimeType  string
	Body      []byte
}

func (f FileResponse) IsEmpty() bool {
	return len(f.Body) != 0
}

func (f FileResponse) createHttpResponse() *http.Response {
	resp := &http.Response{
		Header: make(http.Header),
	}

	if f.Exists {
		resp.StatusCode = http.StatusOK
	} else {
		resp.StatusCode = http.StatusNotFound
	}

	if f.IsSymlink {
		resp.Header.Set(giteaObjectTypeHeader, objTypeSymlink)
	}
	resp.Header.Set(eTagHeader, f.ETag)
	resp.Header.Set(contentTypeHeader, f.MimeType)

	return resp
}

type BranchTimestamp struct {
	Branch    string
	Timestamp time.Time
}

const (
	// defaultBranchCacheTimeout specifies the timeout for the default branch cache. It can be quite long.
	defaultBranchCacheTimeout = 15 * time.Minute

	// branchExistenceCacheTimeout specifies the timeout for the branch timestamp & existence cache. It should be shorter
	// than fileCacheTimeout, as that gets invalidated if the branch timestamp has changed. That way, repo changes will be
	// picked up faster, while still allowing the content to be cached longer if nothing changes.
	branchExistenceCacheTimeout = 5 * time.Minute

	// fileCacheTimeout specifies the timeout for the file content cache - you might want to make this quite long, depending
	// on your available memory.
	// TODO: move as option into cache interface
	fileCacheTimeout = 5 * time.Minute

	// fileCacheSizeLimit limits the maximum file size that will be cached, and is set to 1 MB by default.
	fileCacheSizeLimit = int64(1024 * 1024)
)