757a12086c
This commit adds two new Go programs to the `examples` directory to demonstrate how to use the `pkg/matrix` and `pkg/datanode` packages programmatically: - `examples/create_matrix_programmatically`: Shows how to create a `.matrix` file from scratch. - `examples/run_matrix_programmatically`: Shows how to unpack and execute a `.matrix` file using `runc`. The `examples` directory has been reorganized to place each runnable example in its own subdirectory, which is the standard Go practice for handling multiple `main` packages.
50 lines
934 B
Go
50 lines
934 B
Go
package main
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import (
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"fmt"
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"io/fs"
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"os"
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"github.com/Snider/Borg/pkg/compress"
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"github.com/Snider/Borg/pkg/datanode"
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)
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func main() {
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if len(os.Args) != 2 {
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fmt.Println("Usage: go run inspect_datanode.go <path to .dat file>")
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os.Exit(1)
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}
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datFile := os.Args[1]
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rawData, err := os.ReadFile(datFile)
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if err != nil {
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fmt.Printf("Error reading .dat file: %v\n", err)
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os.Exit(1)
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}
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data, err := compress.Decompress(rawData)
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if err != nil {
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fmt.Printf("Error decompressing data: %v\n", err)
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os.Exit(1)
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}
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dn, err := datanode.FromTar(data)
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if err != nil {
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fmt.Printf("Error creating DataNode from tarball: %v\n", err)
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os.Exit(1)
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}
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fmt.Printf("Contents of %s:\n", datFile)
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err = dn.Walk(".", func(path string, d fs.DirEntry, err error) error {
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if err != nil {
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return err
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}
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fmt.Println(path)
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return nil
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})
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if err != nil {
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fmt.Printf("Error walking DataNode: %v\n", err)
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os.Exit(1)
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}
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}
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