github.com/inspektor-gadget/inspektor-gadget@v0.28.1/pkg/gadget-registry/gadget-registry.go (about)

     1  // Copyright 2022-2023 The Inspektor Gadget authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gadgetregistry
    16  
    17  import (
    18  	"fmt"
    19  	"sort"
    20  
    21  	"github.com/inspektor-gadget/inspektor-gadget/pkg/gadgets"
    22  )
    23  
    24  var gadgetRegistry = map[string]gadgets.GadgetDesc{}
    25  
    26  func Register(gadget gadgets.GadgetDesc) {
    27  	key := gadget.Category() + "/" + gadget.Name()
    28  	if _, ok := gadgetRegistry[key]; ok {
    29  		panic(fmt.Sprintf("Gadget %q already registered", key))
    30  	}
    31  	gadgetRegistry[key] = gadget
    32  }
    33  
    34  func Get(category, name string) gadgets.GadgetDesc {
    35  	return gadgetRegistry[category+"/"+name]
    36  }
    37  
    38  func GetAll() (gadgets []gadgets.GadgetDesc) {
    39  	for _, g := range gadgetRegistry {
    40  		gadgets = append(gadgets, g)
    41  	}
    42  
    43  	// Return gadgets in deterministic order
    44  	sort.Slice(gadgets, func(i, j int) bool {
    45  		a := fmt.Sprintf("%s-%s", gadgets[i].Category(), gadgets[i].Name())
    46  		b := fmt.Sprintf("%s-%s", gadgets[j].Category(), gadgets[j].Name())
    47  		return a < b
    48  	})
    49  	return
    50  }