// CheckPkg checks if versioned package is in records, and download it when needed.
func CheckPkg(importPath, rev string) (*Revision, error) {
// Check package record.
pkg, err := GetPakcageByPath(importPath)
if err != nil {
if err != ErrPackageNotExist {
return nil, err
}
blocked, blockErr, err := IsPackageBlocked(importPath)
if err != nil {
return nil, err
} else if blocked {
return nil, blockErr
}
}
n := archive.NewNode(importPath, rev)
// Get and check revision record.
if err = n.GetRevision(); err != nil {
return nil, err
}
var r *Revision
if pkg != nil {
r, err = GetRevision(pkg.Id, n.Revision)
if err != nil && err != ErrRevisionNotExist {
return nil, err
}
}
// return nil, fmt.Errorf("Revision: %s", n.Revision)
if r == nil || (r.Storage == LOCAL && !com.IsFile(n.ArchivePath)) {
if err := n.Download(); err != nil {
return nil, err
}
}
if pkg == nil {
pkg, err = NewPackage(n.ImportPath)
if err != nil {
return nil, err
}
}
if r == nil {
r = &Revision{
PkgId: pkg.Id,
Revision: n.Revision,
}
_, err = x.Insert(r)
} else {
_, err = x.Id(r.Id).Update(r)
}
return r, nil
}
func GetRevision(ctx *middleware.Context) {
importPath := archive.GetRootPath(ctx.Query("pkgname"))
rev := ctx.Query("revision")
n := archive.NewNode(importPath, rev)
if err := n.GetRevision(); err != nil {
ctx.JSON(422, map[string]interface{}{
"error": err.Error(),
})
return
}
ctx.JSON(200, map[string]interface{}{
"sha": n.Revision,
})
}