641cdf3ba6
The use of the pathMapper is no longer needed the way we have organized the code base. The extra level of indirection has proved unnecessary and confusing so we've opted to clean it up. In the future, we may require more flexibility, but now it is simply not required. Signed-off-by: Stephen J Day <stephen.day@docker.com>
66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
package storage
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import (
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"errors"
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"io"
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"path"
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"sort"
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"strings"
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"github.com/docker/distribution/context"
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"github.com/docker/distribution/registry/storage/driver"
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)
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// Returns a list, or partial list, of repositories in the registry.
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// Because it's a quite expensive operation, it should only be used when building up
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// an initial set of repositories.
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func (reg *registry) Repositories(ctx context.Context, repos []string, last string) (n int, err error) {
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var foundRepos []string
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var errVal error
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if len(repos) == 0 {
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return 0, errors.New("no space in slice")
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}
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root, err := pathFor(repositoriesRootPathSpec{})
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if err != nil {
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return 0, err
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}
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// Walk each of the directories in our storage. Unfortunately since there's no
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// guarantee that storage will return files in lexigraphical order, we have
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// to store everything another slice, sort it and then copy it back to our
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// passed in slice.
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Walk(ctx, reg.blobStore.driver, root, func(fileInfo driver.FileInfo) error {
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filePath := fileInfo.Path()
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// lop the base path off
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repoPath := filePath[len(root)+1:]
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_, file := path.Split(repoPath)
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if file == "_layers" {
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repoPath = strings.TrimSuffix(repoPath, "/_layers")
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if repoPath > last {
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foundRepos = append(foundRepos, repoPath)
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}
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return ErrSkipDir
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} else if strings.HasPrefix(file, "_") {
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return ErrSkipDir
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}
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return nil
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})
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sort.Strings(foundRepos)
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n = copy(repos, foundRepos)
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// Signal that we have no more entries by setting EOF
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if len(foundRepos) <= len(repos) {
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errVal = io.EOF
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}
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return n, errVal
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}
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