github.com/mheon/docker@v0.11.2-0.20150922122814-44f47903a831/api/client/ps/custom.go (about)

     1  package ps
     2  
     3  import (
     4  	"fmt"
     5  	"strconv"
     6  	"strings"
     7  	"time"
     8  
     9  	"github.com/docker/docker/api"
    10  	"github.com/docker/docker/api/types"
    11  	"github.com/docker/docker/pkg/stringid"
    12  	"github.com/docker/docker/pkg/stringutils"
    13  	"github.com/docker/docker/pkg/units"
    14  )
    15  
    16  const (
    17  	tableKey = "table"
    18  
    19  	idHeader         = "CONTAINER ID"
    20  	imageHeader      = "IMAGE"
    21  	namesHeader      = "NAMES"
    22  	commandHeader    = "COMMAND"
    23  	createdAtHeader  = "CREATED AT"
    24  	runningForHeader = "CREATED"
    25  	statusHeader     = "STATUS"
    26  	portsHeader      = "PORTS"
    27  	sizeHeader       = "SIZE"
    28  	labelsHeader     = "LABELS"
    29  )
    30  
    31  type containerContext struct {
    32  	trunc  bool
    33  	header []string
    34  	c      types.Container
    35  }
    36  
    37  func (c *containerContext) ID() string {
    38  	c.addHeader(idHeader)
    39  	if c.trunc {
    40  		return stringid.TruncateID(c.c.ID)
    41  	}
    42  	return c.c.ID
    43  }
    44  
    45  func (c *containerContext) Names() string {
    46  	c.addHeader(namesHeader)
    47  	names := stripNamePrefix(c.c.Names)
    48  	if c.trunc {
    49  		for _, name := range names {
    50  			if len(strings.Split(name, "/")) == 1 {
    51  				names = []string{name}
    52  				break
    53  			}
    54  		}
    55  	}
    56  	return strings.Join(names, ",")
    57  }
    58  
    59  func (c *containerContext) Image() string {
    60  	c.addHeader(imageHeader)
    61  	if c.c.Image == "" {
    62  		return "<no image>"
    63  	}
    64  	if c.trunc {
    65  		return stringutils.Truncate(c.c.Image, 12)
    66  	}
    67  	return c.c.Image
    68  }
    69  
    70  func (c *containerContext) Command() string {
    71  	c.addHeader(commandHeader)
    72  	command := c.c.Command
    73  	if c.trunc {
    74  		command = stringutils.Truncate(command, 20)
    75  	}
    76  	return strconv.Quote(command)
    77  }
    78  
    79  func (c *containerContext) CreatedAt() string {
    80  	c.addHeader(createdAtHeader)
    81  	return time.Unix(int64(c.c.Created), 0).String()
    82  }
    83  
    84  func (c *containerContext) RunningFor() string {
    85  	c.addHeader(runningForHeader)
    86  	createdAt := time.Unix(int64(c.c.Created), 0)
    87  	return units.HumanDuration(time.Now().UTC().Sub(createdAt))
    88  }
    89  
    90  func (c *containerContext) Ports() string {
    91  	c.addHeader(portsHeader)
    92  	return api.DisplayablePorts(c.c.Ports)
    93  }
    94  
    95  func (c *containerContext) Status() string {
    96  	c.addHeader(statusHeader)
    97  	return c.c.Status
    98  }
    99  
   100  func (c *containerContext) Size() string {
   101  	c.addHeader(sizeHeader)
   102  	srw := units.HumanSize(float64(c.c.SizeRw))
   103  	sv := units.HumanSize(float64(c.c.SizeRootFs))
   104  
   105  	sf := srw
   106  	if c.c.SizeRootFs > 0 {
   107  		sf = fmt.Sprintf("%s (virtual %s)", srw, sv)
   108  	}
   109  	return sf
   110  }
   111  
   112  func (c *containerContext) Labels() string {
   113  	c.addHeader(labelsHeader)
   114  	if c.c.Labels == nil {
   115  		return ""
   116  	}
   117  
   118  	var joinLabels []string
   119  	for k, v := range c.c.Labels {
   120  		joinLabels = append(joinLabels, fmt.Sprintf("%s=%s", k, v))
   121  	}
   122  	return strings.Join(joinLabels, ",")
   123  }
   124  
   125  func (c *containerContext) Label(name string) string {
   126  	n := strings.Split(name, ".")
   127  	r := strings.NewReplacer("-", " ", "_", " ")
   128  	h := r.Replace(n[len(n)-1])
   129  
   130  	c.addHeader(h)
   131  
   132  	if c.c.Labels == nil {
   133  		return ""
   134  	}
   135  	return c.c.Labels[name]
   136  }
   137  
   138  func (c *containerContext) fullHeader() string {
   139  	if c.header == nil {
   140  		return ""
   141  	}
   142  	return strings.Join(c.header, "\t")
   143  }
   144  
   145  func (c *containerContext) addHeader(header string) {
   146  	if c.header == nil {
   147  		c.header = []string{}
   148  	}
   149  	c.header = append(c.header, strings.ToUpper(header))
   150  }
   151  
   152  func stripNamePrefix(ss []string) []string {
   153  	for i, s := range ss {
   154  		ss[i] = s[1:]
   155  	}
   156  
   157  	return ss
   158  }