986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
/*
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Copyright The ocicrypt Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"bytes"
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"io"
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"os/exec"
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"github.com/pkg/errors"
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)
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// FillBuffer fills the given buffer with as many bytes from the reader as possible. It returns
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// EOF if an EOF was encountered or any other error.
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func FillBuffer(reader io.Reader, buffer []byte) (int, error) {
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n, err := io.ReadFull(reader, buffer)
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if err == io.ErrUnexpectedEOF {
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return n, io.EOF
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}
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return n, err
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}
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// first argument is the command, like cat or echo,
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// the second is the list of args to pass to it
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type CommandExecuter interface {
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Exec(string, []string, []byte) ([]byte, error)
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}
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type Runner struct{}
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// ExecuteCommand is used to execute a linux command line command and return the output of the command with an error if it exists.
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func (r Runner) Exec(cmdName string, args []string, input []byte) ([]byte, error) {
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var out bytes.Buffer
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stdInputBuffer := bytes.NewBuffer(input)
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cmd := exec.Command(cmdName, args...)
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cmd.Stdin = stdInputBuffer
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cmd.Stdout = &out
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err := cmd.Run()
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if err != nil {
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return nil, errors.Wrapf(err, "Error while running command: %s", cmdName)
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}
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return out.Bytes(), nil
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}
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