mirror of
https://github.com/containers/podman
synced 2024-10-22 02:03:38 +00:00
9cc0c8ae14
Move kpod stats to the libpod backend. Signed-off-by: baude <bbaude@redhat.com> Closes: #113 Approved by: baude
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package libpod
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/containers/image/signature"
|
|
"github.com/containers/image/types"
|
|
"github.com/pkg/errors"
|
|
"strconv"
|
|
)
|
|
|
|
// Runtime API constants
|
|
const (
|
|
// DefaultTransport is a prefix that we apply to an image name
|
|
// to check docker hub first for the image
|
|
DefaultTransport = "docker://"
|
|
)
|
|
|
|
// WriteFile writes a provided string to a provided path
|
|
func WriteFile(content string, path string) error {
|
|
baseDir := filepath.Dir(path)
|
|
if baseDir != "" {
|
|
if _, err := os.Stat(path); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
f, err := os.Create(path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer f.Close()
|
|
f.WriteString(content)
|
|
f.Sync()
|
|
return nil
|
|
}
|
|
|
|
// StringInSlice determines if a string is in a string slice, returns bool
|
|
func StringInSlice(s string, sl []string) bool {
|
|
for _, i := range sl {
|
|
if i == s {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// FuncTimer helps measure the execution time of a function
|
|
// For debug purposes, do not leave in code
|
|
// used like defer FuncTimer("foo")
|
|
func FuncTimer(funcName string) {
|
|
elapsed := time.Since(time.Now())
|
|
fmt.Printf("%s executed in %d ms\n", funcName, elapsed)
|
|
}
|
|
|
|
// hasTransport determines if the image string contains '://', returns bool
|
|
func hasTransport(image string) bool {
|
|
return strings.Contains(image, "://")
|
|
}
|
|
|
|
// CopyStringStringMap deep copies a map[string]string and returns the result
|
|
func CopyStringStringMap(m map[string]string) map[string]string {
|
|
n := map[string]string{}
|
|
for k, v := range m {
|
|
n[k] = v
|
|
}
|
|
return n
|
|
}
|
|
|
|
// GetPolicyContext creates a signature policy context for the given signature policy path
|
|
func GetPolicyContext(path string) (*signature.PolicyContext, error) {
|
|
policy, err := signature.DefaultPolicy(&types.SystemContext{SignaturePolicyPath: path})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return signature.NewPolicyContext(policy)
|
|
}
|
|
|
|
// RemoveScientificNotationFromFloat returns a float without any
|
|
// scientific notation if the number has any.
|
|
// golang does not handle conversion of float64s that have scientific
|
|
// notation in them and otherwise stinks. please replace this if you have
|
|
// a better implementation.
|
|
func RemoveScientificNotationFromFloat(x float64) (float64, error) {
|
|
bigNum := strconv.FormatFloat(x, 'g', -1, 64)
|
|
breakPoint := strings.IndexAny(bigNum, "Ee")
|
|
if breakPoint > 0 {
|
|
bigNum = bigNum[:breakPoint]
|
|
}
|
|
result, err := strconv.ParseFloat(bigNum, 64)
|
|
if err != nil {
|
|
return x, errors.Wrapf(err, "unable to remove scientific number from calculations")
|
|
}
|
|
return result, nil
|
|
}
|