mirror of
https://github.com/clearlinux/mixer-tools.git
synced 2026-09-04 20:51:27 +00:00
102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
// Copyright © 2018 Intel Corporation
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package builder
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import (
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"net/url"
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"os"
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"os/exec"
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"path"
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"strconv"
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"strings"
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"github.com/clearlinux/mixer-tools/helpers"
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"github.com/pkg/errors"
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)
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func parseUint32(s string) (uint32, error) {
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parsed, err := strconv.ParseUint(s, 10, 32)
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if err != nil {
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return 0, errors.Wrapf(err, "error parsing value %q", s)
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}
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return uint32(parsed), nil
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}
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// buildUpstreamURL builds the full upstream URL based on a b.UpstreamURL and a
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// supplied subpath
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func (b *Builder) buildUpstreamURL(subpath string) (string, error) {
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base, err := url.Parse(b.UpstreamURL)
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if err != nil {
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return "", err
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}
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for _, token := range strings.Split(subpath, "/") {
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base.Path = path.Join(base.Path, token)
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}
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return base.String(), nil
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}
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// DownloadFileFromUpstreamAsString will download a file from the Upstream URL
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// joined with the passed subpath. It will trim leading and trailing whitespace
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// from the result.
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func (b *Builder) DownloadFileFromUpstreamAsString(subpath string) (string, error) {
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if b.UpstreamURL == "" {
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return b.State.Mix.Format, nil
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}
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url, err := b.buildUpstreamURL(subpath)
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if err != nil {
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return "", err
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}
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content, err := helpers.DownloadFileAsString(url)
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if err != nil {
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return "", err
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}
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return strings.TrimSpace(string(content)), nil
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}
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// DownloadFileFromUpstream will download a file from the Upstream URL
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// joined with the passed subpath and write that file to the supplied file path.
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// If the path is left empty, the file name will be inferred from the source
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// and written to PWD.
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func (b *Builder) DownloadFileFromUpstream(subpath string, filePath string) error {
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url, err := b.buildUpstreamURL(subpath)
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if err != nil {
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return err
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}
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return helpers.DownloadFile(url, filePath)
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}
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// TerminalWidth determines the screen width of the calling terminal.
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func TerminalWidth() (int, error) {
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cmd := exec.Command("stty", "size")
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cmd.Stdin = os.Stdin
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out, err := cmd.Output()
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if err != nil {
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return 0, err
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}
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outStrs := strings.Fields(string(out))
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if len(outStrs) != 2 {
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return 0, errors.Errorf("Invalid stty output")
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}
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width, err := strconv.Atoi(outStrs[1])
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if err != nil {
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return 0, err
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}
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return width, nil
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}
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