imworkingon: Add Gerrit last-updated detection

1 files changed, 54 insertions, 0 deletions

diff --git a/cmd/generate/gerrit.go b/cmd/generate/gerrit.go
new file mode 100644
index 0000000..c8837fc
--- /dev/null
+++ b/cmd/generate/gerrit.go
@@ -0,0 +1,54 @@
+package main
+
+import (
+	"encoding"
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// httpGetGerritJSON is like [httpGetJSON], but
+// https://gerrit-review.googlesource.com/Documentation/rest-api.html#output
+func httpGetGerritJSON(u string, out any) error {
+	str, err := httpGet(u)
+	if err != nil {
+		return err
+	}
+	if _, body, ok := strings.Cut(str, "\n"); ok {
+		str = body
+	}
+	return json.Unmarshal([]byte(str), out)
+}
+
+const GerritTimeFormat = "2006-01-02 15:04:05.000000000"
+
+type GerritTime struct {
+	Val time.Time
+}
+
+var (
+	_ fmt.Stringer             = GerritTime{}
+	_ encoding.TextMarshaler   = GerritTime{}
+	_ encoding.TextUnmarshaler = (*GerritTime)(nil)
+)
+
+// String implements [fmt.Stringer].
+func (t GerritTime) String() string {
+	return t.Val.Format(GerritTimeFormat)
+}
+
+// MarshalText implements [encoding.TextMarshaler].
+func (t GerritTime) MarshalText() ([]byte, error) {
+	return []byte(t.String()), nil
+}
+
+// UnmarshalText implements [encoding.TextUnmarshaler].
+func (t *GerritTime) UnmarshalText(data []byte) error {
+	val, err := time.Parse(GerritTimeFormat, string(data))
+	if err != nil {
+		return err
+	}
+	t.Val = val
+	return nil
+}