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feat: create command hunt to trace multiple functions from different …
…test binaries (#18) feat: create command hunt to trace multiple functions from different test binaries --------- Signed-off-by: Alessio Greggi <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /* | ||
| Copyright © 2024 Alessio Greggi | ||
| 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 cmd | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/alegrey91/harpoon/internal/captor" | ||
| meta "github.com/alegrey91/harpoon/internal/metadata" | ||
| "github.com/spf13/cobra" | ||
| yaml "gopkg.in/yaml.v2" | ||
| ) | ||
|
|
||
| var ( | ||
| harpoonFile string | ||
| ) | ||
|
|
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| // huntCmd represents the create args | ||
| var huntCmd = &cobra.Command{ | ||
| Use: "hunt", | ||
| Short: "Hunt is like capture but gets a list of functions to be traced", | ||
| Long: ` | ||
| `, | ||
| Example: " harpoon hunt --file .harpoon.yaml", | ||
| Run: func(cmd *cobra.Command, args []string) { | ||
| file, err := os.Open(harpoonFile) | ||
| if err != nil { | ||
| fmt.Printf("failed to open %s: %v\n", harpoonFile, err) | ||
| return | ||
| } | ||
| defer file.Close() | ||
|
|
||
| byteValue, err := io.ReadAll(file) | ||
| if err != nil { | ||
| fmt.Printf("Failed to read file: %s", err) | ||
| } | ||
|
|
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| // Unmarshal the JSON data into the struct | ||
| var analysisReport meta.SymbolsList | ||
| if err := yaml.Unmarshal(byteValue, &analysisReport); err != nil { | ||
| fmt.Printf("Failed to unmarshal YAML: %v", err) | ||
| } | ||
| //fmt.Println(analysisReport) | ||
|
|
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| for _, symbolsOrigins := range analysisReport.SymbolsOrigins { | ||
| fmt.Println("test binary:", symbolsOrigins.TestBinaryPath) | ||
| fmt.Println("symbols:", symbolsOrigins.Symbols) | ||
|
|
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| // command builder | ||
| var captureArgs []string | ||
| captureArgs = append(captureArgs, symbolsOrigins.TestBinaryPath) | ||
| functionSymbols := strings.Join(symbolsOrigins.Symbols, ",") | ||
| opts := captor.CaptureOptions{ | ||
| CommandOutput: commandOutput, | ||
| LibbpfOutput: libbpfOutput, | ||
| Save: save, | ||
| Directory: directory, | ||
| } | ||
|
|
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| captor.Capture(functionSymbols, captureArgs, opts) | ||
| } | ||
| }, | ||
| } | ||
|
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| func init() { | ||
| rootCmd.AddCommand(huntCmd) | ||
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| huntCmd.Flags().StringVarP(&harpoonFile, "file", "F", ".harpoon.yaml", "File with the result of analysis") | ||
| huntCmd.MarkFlagRequired("file") | ||
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| huntCmd.Flags().StringVarP(&functionSymbols, "functions", "f", "", "Name of the function symbols to be traced") | ||
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| huntCmd.Flags().BoolVarP(&commandOutput, "include-cmd-output", "c", false, "Include the executed command output") | ||
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| huntCmd.Flags().BoolVarP(&libbpfOutput, "include-libbpf-output", "l", false, "Include the libbpf output") | ||
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| huntCmd.Flags().BoolVarP(&save, "save", "S", false, "Save output to a file") | ||
| huntCmd.Flags().StringVarP(&directory, "directory", "D", "", "Directory to use to store saved files") | ||
| huntCmd.MarkFlagsRequiredTogether("save", "directory") | ||
| } |
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