mirror of
https://github.com/aptly-dev/aptly.git
synced 2026-01-12 03:21:33 +00:00
113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
package cmd
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import (
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"fmt"
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"github.com/gonuts/commander"
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"github.com/gonuts/flag"
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"github.com/smira/aptly/debian"
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"github.com/wsxiaoys/terminal/color"
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)
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func aptlySnapshotDiff(cmd *commander.Command, args []string) error {
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var err error
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if len(args) != 2 {
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cmd.Usage()
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return err
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}
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onlyMatching := cmd.Flag.Lookup("only-matching").Value.Get().(bool)
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snapshotCollection := debian.NewSnapshotCollection(context.database)
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packageCollection := debian.NewPackageCollection(context.database)
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// Load <name-a> snapshot
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snapshotA, err := snapshotCollection.ByName(args[0])
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if err != nil {
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return fmt.Errorf("unable to load snapshot A: %s", err)
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}
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err = snapshotCollection.LoadComplete(snapshotA)
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if err != nil {
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return fmt.Errorf("unable to load snapshot A: %s", err)
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}
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// Load <name-b> snapshot
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snapshotB, err := snapshotCollection.ByName(args[1])
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if err != nil {
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return fmt.Errorf("unable to load snapshot B: %s", err)
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}
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err = snapshotCollection.LoadComplete(snapshotB)
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if err != nil {
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return fmt.Errorf("unable to load snapshot B: %s", err)
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}
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// Calculate diff
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diff, err := snapshotA.RefList().Diff(snapshotB.RefList(), packageCollection)
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if err != nil {
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return fmt.Errorf("unable to calculate diff: %s", err)
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}
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if len(diff) == 0 {
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fmt.Printf("Snapshots are identical.\n")
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} else {
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fmt.Printf(" Arch | Package | Version in A | Version in B\n")
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for _, pdiff := range diff {
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if onlyMatching && (pdiff.Left == nil || pdiff.Right == nil) {
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continue
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}
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var verA, verB, pkg, arch, code string
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if pdiff.Left == nil {
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verA = "-"
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verB = pdiff.Right.Version
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pkg = pdiff.Right.Name
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arch = pdiff.Right.Architecture
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} else {
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pkg = pdiff.Left.Name
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arch = pdiff.Left.Architecture
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verA = pdiff.Left.Version
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if pdiff.Right == nil {
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verB = "-"
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} else {
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verB = pdiff.Right.Version
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}
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}
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if pdiff.Left == nil {
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code = "@g+@|"
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} else {
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if pdiff.Right == nil {
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code = "@r-@|"
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} else {
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code = "@y!@|"
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}
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}
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color.Printf(code+" %-6s | %-40s | %-40s | %-40s\n", arch, pkg, verA, verB)
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}
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}
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return err
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}
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func makeCmdSnapshotDiff() *commander.Command {
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cmd := &commander.Command{
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Run: aptlySnapshotDiff,
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UsageLine: "diff <name-a> <name-b>",
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Short: "calculates difference in packages between two snapshots",
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Long: `
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Command diff shows list of missing and new packages, difference in package versions between two snapshots.
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ex.
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$ aptly snapshot diff -only-matching wheezy-main wheezy-backports
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`,
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Flag: *flag.NewFlagSet("aptly-snapshot-diff", flag.ExitOnError),
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}
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cmd.Flag.Bool("only-matching", false, "display diff only for matching packages (don't display missing packages)")
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return cmd
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}
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