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Diffstat (limited to 'pkg/bindings/images/build.go')
-rw-r--r--pkg/bindings/images/build.go138
1 files changed, 115 insertions, 23 deletions
diff --git a/pkg/bindings/images/build.go b/pkg/bindings/images/build.go
index d34ab87d9..02765816f 100644
--- a/pkg/bindings/images/build.go
+++ b/pkg/bindings/images/build.go
@@ -2,6 +2,7 @@ package images
import (
"archive/tar"
+ "compress/gzip"
"context"
"encoding/json"
"io"
@@ -18,6 +19,7 @@ import (
"github.com/containers/podman/v2/pkg/auth"
"github.com/containers/podman/v2/pkg/bindings"
"github.com/containers/podman/v2/pkg/domain/entities"
+ "github.com/containers/storage/pkg/fileutils"
"github.com/docker/go-units"
"github.com/hashicorp/go-multierror"
jsoniter "github.com/json-iterator/go"
@@ -138,12 +140,38 @@ func Build(ctx context.Context, containerFiles []string, options entities.BuildO
entries := make([]string, len(containerFiles))
copy(entries, containerFiles)
entries = append(entries, options.ContextDirectory)
- tarfile, err := nTar(entries...)
+
+ excludes := options.Excludes
+ if len(excludes) == 0 {
+ excludes, err = parseDockerignore(options.ContextDirectory)
+ if err != nil {
+ return nil, err
+ }
+ }
+
+ tarfile, err := nTar(excludes, entries...)
if err != nil {
+ logrus.Errorf("cannot tar container entries %v error: %v", entries, err)
return nil, err
}
defer tarfile.Close()
- params.Set("dockerfile", filepath.Base(containerFiles[0]))
+
+ containerFile, err := filepath.Abs(entries[0])
+ if err != nil {
+ logrus.Errorf("cannot find absolute path of %v: %v", entries[0], err)
+ return nil, err
+ }
+ contextDir, err := filepath.Abs(entries[1])
+ if err != nil {
+ logrus.Errorf("cannot find absolute path of %v: %v", entries[1], err)
+ return nil, err
+ }
+
+ if strings.HasPrefix(containerFile, contextDir+string(filepath.Separator)) {
+ containerFile = strings.TrimPrefix(containerFile, contextDir+string(filepath.Separator))
+ }
+
+ params.Set("dockerfile", containerFile)
conn, err := bindings.GetClient(ctx)
if err != nil {
@@ -200,52 +228,116 @@ func Build(ctx context.Context, containerFiles []string, options entities.BuildO
}
}
-func nTar(sources ...string) (io.ReadCloser, error) {
+func nTar(excludes []string, sources ...string) (io.ReadCloser, error) {
+ pm, err := fileutils.NewPatternMatcher(excludes)
+ if err != nil {
+ return nil, errors.Wrapf(err, "error processing excludes list %v", excludes)
+ }
+
if len(sources) == 0 {
return nil, errors.New("No source(s) provided for build")
}
pr, pw := io.Pipe()
- tw := tar.NewWriter(pw)
+ gw := gzip.NewWriter(pw)
+ tw := tar.NewWriter(gw)
var merr error
go func() {
defer pw.Close()
+ defer gw.Close()
defer tw.Close()
for _, src := range sources {
- s := src
- err := filepath.Walk(s, func(path string, info os.FileInfo, err error) error {
+ s, err := filepath.Abs(src)
+ if err != nil {
+ logrus.Errorf("cannot stat one of source context: %v", err)
+ merr = multierror.Append(merr, err)
+ return
+ }
+
+ err = filepath.Walk(s, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
- if !info.Mode().IsRegular() || path == s {
- return nil
- }
- f, lerr := os.Open(path)
- if lerr != nil {
- return lerr
+ if path == s {
+ return nil // skip root dir
}
name := strings.TrimPrefix(path, s+string(filepath.Separator))
- hdr, lerr := tar.FileInfoHeader(info, name)
- if lerr != nil {
- f.Close()
- return lerr
+
+ excluded, err := pm.Matches(filepath.ToSlash(name)) // nolint:staticcheck
+ if err != nil {
+ return errors.Wrapf(err, "error checking if %q is excluded", name)
}
- hdr.Name = name
- if lerr := tw.WriteHeader(hdr); lerr != nil {
- f.Close()
- return lerr
+ if excluded {
+ return nil
}
- _, cerr := io.Copy(tw, f)
- f.Close()
- return cerr
+ if info.Mode().IsRegular() { // add file item
+ f, lerr := os.Open(path)
+ if lerr != nil {
+ return lerr
+ }
+
+ hdr, lerr := tar.FileInfoHeader(info, name)
+ if lerr != nil {
+ f.Close()
+ return lerr
+ }
+ hdr.Name = name
+ if lerr := tw.WriteHeader(hdr); lerr != nil {
+ f.Close()
+ return lerr
+ }
+
+ _, cerr := io.Copy(tw, f)
+ f.Close()
+ return cerr
+ } else if info.Mode().IsDir() { // add folders
+ hdr, lerr := tar.FileInfoHeader(info, name)
+ if lerr != nil {
+ return lerr
+ }
+ hdr.Name = name
+ if lerr := tw.WriteHeader(hdr); lerr != nil {
+ return lerr
+ }
+ } else if info.Mode()&os.ModeSymlink != 0 { // add symlinks as it, not content
+ link, err := os.Readlink(path)
+ if err != nil {
+ return err
+ }
+ hdr, lerr := tar.FileInfoHeader(info, link)
+ if lerr != nil {
+ return lerr
+ }
+ hdr.Name = name
+ if lerr := tw.WriteHeader(hdr); lerr != nil {
+ return lerr
+ }
+ } //skip other than file,folder and symlinks
+ return nil
})
merr = multierror.Append(merr, err)
}
}()
return pr, merr
}
+
+func parseDockerignore(root string) ([]string, error) {
+ ignore, err := ioutil.ReadFile(filepath.Join(root, ".dockerignore"))
+ if err != nil && !os.IsNotExist(err) {
+ return nil, errors.Wrapf(err, "error reading .dockerignore: '%s'", root)
+ }
+ rawexcludes := strings.Split(string(ignore), "\n")
+ excludes := make([]string, 0, len(rawexcludes))
+ for _, e := range rawexcludes {
+ if len(e) == 0 || e[0] == '#' {
+ continue
+ }
+ excludes = append(excludes, e)
+ }
+ return excludes, nil
+}