mirror of
https://github.com/anchore/syft
synced 2024-11-10 06:14:16 +00:00
71 lines
2.5 KiB
Go
71 lines
2.5 KiB
Go
package main
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import (
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"context"
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"encoding/json"
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"os"
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"github.com/anchore/go-collections"
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"github.com/anchore/stereoscope"
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"github.com/anchore/syft/syft"
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"github.com/anchore/syft/syft/source"
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"github.com/anchore/syft/syft/source/sourceproviders"
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)
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/*
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This example demonstrates how to create a source object from a generic string input.
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Example inputs:
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alpine:3.19 pull an image from the docker daemon, podman, or the registry (based on what's available)
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./my.tar interpret a local archive as an OCI archive, docker save archive, or raw file from disk to catalog
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docker:yourrepo/yourimage:tag explicitly use the Docker daemon
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podman:yourrepo/yourimage:tag explicitly use the Podman daemon
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registry:yourrepo/yourimage:tag pull image directly from a registry (no container runtime required)
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docker-archive:path/to/yourimage.tar use a tarball from disk for archives created from "docker save"
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oci-archive:path/to/yourimage.tar use a tarball from disk for OCI archives (from Skopeo or otherwise)
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oci-dir:path/to/yourimage read directly from a path on disk for OCI layout directories (from Skopeo or otherwise)
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singularity:path/to/yourimage.sif read directly from a Singularity Image Format (SIF) container on disk
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dir:path/to/yourproject read directly from a path on disk (any directory)
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file:path/to/yourproject/file read directly from a path on disk (any single file)
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*/
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const defaultImage = "alpine:3.19"
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func main() {
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userInput := imageReference()
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// parse the scheme against the known set of schemes
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schemeSource, newUserInput := stereoscope.ExtractSchemeSource(userInput, allSourceTags()...)
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// set up the GetSourceConfig
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getSourceCfg := syft.DefaultGetSourceConfig()
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if schemeSource != "" {
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getSourceCfg = getSourceCfg.WithSources(schemeSource)
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userInput = newUserInput
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}
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src, err := syft.GetSource(context.Background(), userInput, getSourceCfg)
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if err != nil {
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panic(err)
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}
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// Show a basic description of the source to the screen
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enc := json.NewEncoder(os.Stdout)
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enc.SetIndent("", " ")
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if err := enc.Encode(src.Describe()); err != nil {
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panic(err)
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}
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}
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func imageReference() string {
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// read an image string reference from the command line or use a default
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if len(os.Args) > 1 {
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return os.Args[1]
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}
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return defaultImage
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}
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func allSourceTags() []string {
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return collections.TaggedValueSet[source.Provider]{}.Join(sourceproviders.All("", nil)...).Tags()
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}
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