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Properly parse the capi documents
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liztio committed Jul 15, 2019
1 parent b18543a commit 0e7a0bf
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Showing 3 changed files with 55 additions and 18 deletions.
7 changes: 6 additions & 1 deletion go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,14 @@ require (
go.uber.org/atomic v1.4.0 // indirect
go.uber.org/multierr v1.1.0 // indirect
go.uber.org/zap v1.10.0 // indirect
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 // indirect
golang.org/x/net v0.0.0-20190628185345-da137c7871d7 // indirect
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 // indirect
golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb // indirect
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542 // indirect
golang.org/x/text v0.3.2 // indirect
golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
golang.org/x/tools v0.0.0-20190710184609-286818132824 // indirect
golang.org/x/tools/gopls v0.1.3 // indirect
k8s.io/api v0.0.0-20190703205437-39734b2a72fe
k8s.io/apiextensions-apiserver v0.0.0-20181213153335-0fe22c71c476 // indirect
k8s.io/apimachinery v0.0.0-20190703205208-4cfb76a8bf76
Expand Down
13 changes: 13 additions & 0 deletions go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -193,6 +193,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90Pveol
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8 h1:1wopBVtVdWnn03fZelqdXTqk7U7zPQCb+T4rbU9ZEoU=
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 h1:HuIa8hRrWRSrqYzx1qI49NNxhdi2PrY7gxVSq1JjLDc=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/net v0.0.0-20170114055629-f2499483f923/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
Expand All @@ -204,10 +206,14 @@ golang.org/x/net v0.0.0-20190514140710-3ec191127204 h1:4yG6GqBtw9C+UrLp6s2wtSnia
golang.org/x/net v0.0.0-20190514140710-3ec191127204/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980 h1:dfGZHvZk057jK2MCeWus/TowKpJ8y4AmooUzdBSR9GU=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190628185345-da137c7871d7 h1:rTIdg5QFRR7XCaK4LCjBiPbx8j4DQRpdYMnGn/bJUEU=
golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20170830134202-bb24a47a89ea/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
Expand All @@ -219,6 +225,8 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190616124812-15dcb6c0061f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb h1:fgwFCsaw9buMuxNd6+DQfAuSFqbNiQZpcgJQAgJsK6k=
golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542 h1:6ZQFf1D2YYDDI7eSwW8adlkkavTB9sw5I24FVtEvNUQ=
golang.org/x/sys v0.0.0-20190710143415-6ec70d6a5542/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
Expand All @@ -230,6 +238,11 @@ golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGm
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20181011042414-1f849cf54d09/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190614205625-5aca471b1d59/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20190710153321-831012c29e42/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
golang.org/x/tools v0.0.0-20190710184609-286818132824 h1:dOGf5KG5e5tnConXcTAnHv2YgmYJtrYjN9b1cMC21TY=
golang.org/x/tools v0.0.0-20190710184609-286818132824/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
golang.org/x/tools/gopls v0.1.3 h1:CB5ECiPysqZrwxcyRjN+exyZpY0gODTZvNiqQi3lpeo=
golang.org/x/tools/gopls v0.1.3/go.mod h1:vrCQzOKxvuiZLjCKSmbbov04oeBQQOb4VQqwYK2PWIY=
google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
Expand Down
53 changes: 36 additions & 17 deletions objects/capi.go
Original file line number Diff line number Diff line change
Expand Up @@ -2,17 +2,17 @@ package objects

import (
"archive/tar"
"bufio"
"bytes"
"compress/gzip"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"

"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
"k8s.io/kubernetes/pkg/kubectl/scheme"
)

Expand Down Expand Up @@ -80,27 +80,46 @@ func getCAPIYAML(version, capiImage string) (io.Reader, error) {
}
}
}
return &buf, nil
s := buf.String()
fmt.Printf("<<<<<<>>>>>>\n%s\n<<<<<<<<<>>>>>>>>\n", s)

return strings.NewReader(s), nil
}

func getCAPIObjects(yaml io.Reader) ([]runtime.Object, error) {
func decodeCAPIObjects(yaml io.Reader) ([]runtime.Object, error) {
decoder := scheme.Codecs.UniversalDeserializer()
streamingDecoder := streaming.NewDecoder(ioutil.NopCloser(yaml), decoder)

defer streamingDecoder.Close()

objects := []runtime.Object{}
readbuf := bufio.NewReader(yaml)
writebuf := &bytes.Buffer{}

for {
obj, _, err := streamingDecoder.Decode(nil, nil)
if err == io.EOF {
break
}
line, err := readbuf.ReadBytes('\n')
// End of an object, parse it
if err == io.EOF || bytes.Equal(line, []byte("---\n")) {

// Use unstructured because scheme may not know about CRDs
if writebuf.Len() > 1 {
obj, _, err := decoder.Decode(writebuf.Bytes(), nil, &unstructured.Unstructured{})
if err == nil {
objects = append(objects, obj)
} else {
return []runtime.Object{}, errors.Wrap(err, "couldn't decode CAPI object")
}
}

if err != nil {
return []runtime.Object{}, errors.Wrap(err, "couldn't decode CAPI object")
}
// previously we didn't care if this was EOF or ---, but now we need to break the loop
if err == io.EOF {
break
}

objects = append(objects, obj)
// No matter what happened, start over
writebuf.Reset()
} else if err != nil {
return []runtime.Object{}, errors.Wrap(err, "couldn't read YAML")
} else {
// Just an ordinary line
writebuf.Write(line)
}
}

return objects, nil
Expand All @@ -112,5 +131,5 @@ func GetCAPI(version, capiImage string) ([]runtime.Object, error) {
return []runtime.Object{}, err
}

return getCAPIObjects(reader)
return decodeCAPIObjects(reader)
}

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