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common/download.go: allow to specify relative path for file scheme 

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
This commit is contained in:
Vasiliy Tolstov 2016-07-03 12:36:29 +03:00
parent 443ffd68f2
commit 4392f6df1c
1 changed files with 19 additions and 8 deletions
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27
common/download.go
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@ -105,21 +105,29 @@ func (d *DownloadClient) Get() (string, error) {
return d.config.TargetPath, nil
}
url, err := url.Parse(d.config.Url)
u, err := url.Parse(d.config.Url)
if err != nil {
return "", err
}
log.Printf("Parsed URL: %#v", url)
log.Printf("Parsed URL: %#v", u)
// Files when we don't copy the file are special cased.
var f *os.File
var finalPath string
sourcePath := ""
if url.Scheme == "file" && !d.config.CopyFile {
if u.Scheme == "file" && !d.config.CopyFile {
// This is special case for relative path in this case user specify
// file:../ and after parse destination goes to Opaque
if u.Path != "" {
// If url.Path is set just use this
finalPath = u.Path
} else if u.Opaque != "" {
// otherwise try url.Opaque
finalPath = u.Opaque
}
// This is a special case where we use a source file that already exists
// locally and we don't make a copy. Normally we would copy or download.
finalPath = url.Path
log.Printf("[DEBUG] Using local file: %s", finalPath)
// Remove forward slash on absolute Windows file URLs before processing
@ -128,13 +136,16 @@ func (d *DownloadClient) Get() (string, error) {
}
// Keep track of the source so we can make sure not to delete this later
sourcePath = finalPath
if _, err = os.Stat(finalPath); err != nil {
return "", err
}
} else {
finalPath = d.config.TargetPath
var ok bool
d.downloader, ok = d.config.DownloaderMap[url.Scheme]
d.downloader, ok = d.config.DownloaderMap[u.Scheme]
if !ok {
return "", fmt.Errorf("No downloader for scheme: %s", url.Scheme)
return "", fmt.Errorf("No downloader for scheme: %s", u.Scheme)
}
// Otherwise, download using the downloader.
@ -143,8 +154,8 @@ func (d *DownloadClient) Get() (string, error) {
return "", err
}
log.Printf("[DEBUG] Downloading: %s", url.String())
err = d.downloader.Download(f, url)
log.Printf("[DEBUG] Downloading: %s", u.String())
err = d.downloader.Download(f, u)
f.Close()
if err != nil {
return "", err