This change does some minor cleanups in the
cli/command/container package;
- sort imports
- replace `fmt.Fprintf()` with `fmt.Fprintln()` if no formatting is used
- replace `fmt.Errorf()` with `errors.New()` if no formatting is used
- remove some redundant `else`'s
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
While looking into `docker stats <c1> <c2> ...` I noticed that
the error output is quite long, especially if there are multiple errors:
```sh
ubuntu@ubuntu:~/docker$ docker stats nofound
: Error response from daemon: No such container: nofound
ubuntu@ubuntu:~/docker$ docker stats nofound foo bar
: Error response from daemon: No such container: nofound, : Error response from daemon: No such container: foo, : Error response from daemon: No such container: bar
```
There are several issues,
1. There is an extra `: ` at the beginning. That is because if container is not found,
the name will not be available from the daemon.
2. Multiple errors are concatenated with `, ` which will be quite long.
This fix:
1. Only prient out the error from daemon.
2. Multiple errors are printed out line by line.
Below is the new output:
```sh
ubuntu@ubuntu:~/docker$ docker stats nofound
Error response from daemon: No such container: nofound
ubuntu@ubuntu:~/docker$ docker stats nofound foo bar
Error response from daemon: No such container: nofound
Error response from daemon: No such container: foo
Error response from daemon: No such container: bar
```
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
As for `ps`, `images`, `network ls` and `volume ls`, this makes it
possible to define a custom default format.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
The formatter.ContainerStats struct exposes its Mutex.
This is a bad design and should be fixed.
To fix that, I separated the statistics
attributes from ContainerStats to StatsEntry and
hid the mutex. Notice that the mutex protects both
the `err` field and the statistics attributes.
Then, implemented SetStatistics, SetError, GetStatistics
and GetError to avoid races.
Moreover, to make this less granular, I decided to
replace the read-write mutex with the regular mutex and
to pass a StatsEntry slice to formatter.ContainerStatsWrite
Signed-off-by: Boaz Shuster <ripcurld.github@gmail.com>
