orphans.go RawHistoryFolder

1package preview
2
3import (
4	"path/filepath"
5	"strings"
6	"time"
7
8	"github.com/bnema/gordon/internal/domain"
9)
10
11const orphanGracePeriod = 5 * time.Minute
12
13// IsOrphanPreview returns true if the container looks like a preview (by image
14// tag pattern and domain separator) but is not in the tracked preview list.
15// Containers younger than 5 minutes are skipped to avoid racing with
16// CreatePreview.
17func IsOrphanPreview(c *domain.Container, tracked []domain.PreviewRoute, tagPatterns []string, separator string) bool {
18	imgLabel := c.Labels[domain.LabelImage]
19	domLabel := c.Labels[domain.LabelDomain]
20	if imgLabel == "" || domLabel == "" {
21		return false
22	}
23
24	// Grace period: skip very recent containers.
25	if !c.Created.IsZero() && time.Since(c.Created) < orphanGracePeriod {
26		return false
27	}
28
29	// Condition 1: image tag matches a preview pattern.
30	tag := tagFromImage(imgLabel)
31	if !matchesAnyPattern(tag, tagPatterns) {
32		return false
33	}
34
35	// Condition 2: domain contains the separator.
36	if !strings.Contains(domLabel, separator) {
37		return false
38	}
39
40	// Not an orphan if tracked.
41	for _, p := range tracked {
42		if p.Domain == domLabel {
43			return false
44		}
45	}
46	return true
47}
48
49// IsExpiredOrphan returns true if the container has exceeded the TTL based on
50// its creation time.
51func IsExpiredOrphan(c *domain.Container, ttl time.Duration) bool {
52	if c.Created.IsZero() {
53		return false // unknown creation time — don't delete, play it safe
54	}
55	return time.Since(c.Created) > ttl
56}
57
58// tagFromImage extracts the tag portion from an image reference.
59// "myapp:preview-feat" -> "preview-feat"
60// "registry.example.com/myapp:preview-feat" -> "preview-feat"
61// "myapp" -> "" (no tag)
62func tagFromImage(image string) string {
63	if idx := strings.Index(image, "@"); idx != -1 {
64		return ""
65	}
66	if idx := strings.LastIndex(image, ":"); idx != -1 {
67		return image[idx+1:]
68	}
69	return ""
70}
71
72// matchesAnyPattern checks if the tag matches any of the glob patterns.
73func matchesAnyPattern(tag string, patterns []string) bool {
74	for _, p := range patterns {
75		if matched, _ := filepath.Match(p, tag); matched {
76			return true
77		}
78	}
79	return false
80}