mirror of https://github.com/databricks/cli.git
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package sync
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import (
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"fmt"
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"strings"
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"time"
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"github.com/databricks/bricks/git"
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)
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type snapshot map[string]time.Time
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type diff struct {
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put []string
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delete []string
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}
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func (d diff) IsEmpty() bool {
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return len(d.put) == 0 && len(d.delete) == 0
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}
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func (d diff) String() string {
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if d.IsEmpty() {
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return "no changes"
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}
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var changes []string
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if len(d.put) > 0 {
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changes = append(changes, fmt.Sprintf("PUT: %s", strings.Join(d.put, ", ")))
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}
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if len(d.delete) > 0 {
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changes = append(changes, fmt.Sprintf("DELETE: %s", strings.Join(d.delete, ", ")))
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}
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return strings.Join(changes, ", ")
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}
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func (s snapshot) diff(all []git.File) (change diff) {
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currentFilenames := map[string]bool{}
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for _, f := range all {
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// create set of current files to figure out if removals are needed
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currentFilenames[f.Relative] = true
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// get current modified timestamp
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modified := f.Modified()
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lastSeenModified, seen := s[f.Relative]
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if !(!seen || modified.After(lastSeenModified)) {
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continue
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}
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change.put = append(change.put, f.Relative)
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s[f.Relative] = modified
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}
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// figure out files in the snapshot, but not on local filesystem
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for relative := range s {
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_, exists := currentFilenames[relative]
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if exists {
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continue
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}
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// and add them to a delete batch
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change.delete = append(change.delete, relative)
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}
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// and remove them from the snapshot
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for _, v := range change.delete {
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delete(s, v)
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}
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return
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}
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