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package cache // import "github.com/docker/docker/image/cache"
import (
"github.com/docker/docker/api/types/container"
)
// compare two Config struct. Do not compare the "Image" nor "Hostname" fields
// If OpenStdin is set, then it differs
func compare(a, b *container.Config) bool {
if a == nil || b == nil ||
a.OpenStdin || b.OpenStdin {
return false
}
if a.AttachStdout != b.AttachStdout ||
a.AttachStderr != b.AttachStderr ||
a.User != b.User ||
a.OpenStdin != b.OpenStdin ||
a.Tty != b.Tty {
return false
}
if len(a.Cmd) != len(b.Cmd) ||
len(a.Env) != len(b.Env) ||
len(a.Labels) != len(b.Labels) ||
len(a.ExposedPorts) != len(b.ExposedPorts) ||
len(a.Entrypoint) != len(b.Entrypoint) ||
len(a.Volumes) != len(b.Volumes) {
return false
}
for i := 0; i < len(a.Cmd); i++ {
if a.Cmd[i] != b.Cmd[i] {
return false
}
}
for i := 0; i < len(a.Env); i++ {
if a.Env[i] != b.Env[i] {
return false
}
}
for k, v := range a.Labels {
if v != b.Labels[k] {
return false
}
}
for k := range a.ExposedPorts {
if _, exists := b.ExposedPorts[k]; !exists {
return false
}
}
for i := 0; i < len(a.Entrypoint); i++ {
if a.Entrypoint[i] != b.Entrypoint[i] {
return false
}
}
for key := range a.Volumes {
if _, exists := b.Volumes[key]; !exists {
return false
}
}
return true
}
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