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list.go
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list.go
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/*
Copyright 2017 WALLIX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package commands
import (
"fmt"
"os"
"sort"
"strings"
"github.com/spf13/cobra"
"github.com/wallix/awless/aws"
"github.com/wallix/awless/cloud"
"github.com/wallix/awless/console"
"github.com/wallix/awless/graph"
"github.com/wallix/awless/sync"
)
var (
listingFormat string
listingFiltersFlag []string
listOnlyIDs bool
sortBy []string
)
func init() {
RootCmd.AddCommand(listCmd)
cobra.EnableCommandSorting = false
for _, srvName := range aws.ServiceNames {
listCmd.AddCommand(listAllResourceInServiceCmd(srvName))
}
for _, name := range aws.ServiceNames {
var resources []string
for _, resType := range aws.ResourceTypesPerServiceName()[name] {
resources = append(resources, resType)
}
sort.Strings(resources)
for _, resType := range resources {
listCmd.AddCommand(listSpecificResourceCmd(resType))
}
}
listCmd.PersistentFlags().StringVar(&listingFormat, "format", "table", "Output format: table, csv, tsv, json (default to table)")
listCmd.PersistentFlags().StringSliceVar(&listingFiltersFlag, "filter", []string{}, "Filter resources given key/values fields. Ex: --filter type=t2.micro")
listCmd.PersistentFlags().BoolVar(&listOnlyIDs, "ids", false, "List only ids")
listCmd.PersistentFlags().StringSliceVar(&sortBy, "sort", []string{"Id"}, "Sort tables by column(s) name(s)")
}
var listCmd = &cobra.Command{
Use: "list",
Aliases: []string{"ls"},
Example: " awless list instances --sort uptime\n awless list users --format csv\n awless list volumes --filter state=use --filter type=gp2\n awless list instances --filter state=running,type=micro\n awless list s3objects --filter bucketname=pdf-bucket ",
PersistentPreRun: applyHooks(initLoggerHook, initAwlessEnvHook, initCloudServicesHook),
PersistentPostRun: applyHooks(saveHistoryHook, verifyNewVersionHook),
Short: "List various type of resources",
}
var listSpecificResourceCmd = func(resType string) *cobra.Command {
return &cobra.Command{
Use: cloud.PluralizeResource(resType),
Short: fmt.Sprintf("[%s] List %s %s", aws.ServicePerResourceType[resType], strings.ToUpper(aws.APIPerResourceType[resType]), cloud.PluralizeResource(resType)),
Run: func(cmd *cobra.Command, args []string) {
var g *graph.Graph
if localGlobalFlag {
if srvName, ok := aws.ServicePerResourceType[resType]; ok {
g = sync.LoadCurrentLocalGraph(srvName)
} else {
exitOn(fmt.Errorf("cannot find service for resource type %s", resType))
}
} else {
srv, err := cloud.GetServiceForType(resType)
exitOn(err)
g, err = srv.FetchByType(resType)
exitOn(err)
}
printResources(g, resType)
},
}
}
var listAllResourceInServiceCmd = func(srvName string) *cobra.Command {
return &cobra.Command{
Use: srvName,
Short: fmt.Sprintf("List all %s resources", srvName),
Hidden: true,
Run: func(cmd *cobra.Command, args []string) {
g := sync.LoadCurrentLocalGraph(srvName)
displayer, err := console.BuildOptions(
console.WithFormat(listingFormat),
console.WithIDsOnly(listOnlyIDs),
).SetSource(g).Build()
exitOn(err)
exitOn(displayer.Print(os.Stdout))
},
}
}
func printResources(g *graph.Graph, resType string) {
displayer, err := console.BuildOptions(
console.WithRdfType(resType),
console.WithHeaders(console.DefaultsColumnDefinitions[resType]),
console.WithFilters(listingFiltersFlag),
console.WithMaxWidth(console.GetTerminalWidth()),
console.WithFormat(listingFormat),
console.WithIDsOnly(listOnlyIDs),
console.WithSortBy(sortBy...),
).SetSource(g).Build()
exitOn(err)
exitOn(displayer.Print(os.Stdout))
}