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internal/version/version.go

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+// Package version exposes build-time version and commit information for the
+// ffd-indexer binaries.
+//
+// The values are injected at build time via the Go linker:
+//
+//	go build -ldflags "-X git.xengi.de/ffd/indexer/internal/version.Version=1.2.3 \
+//	                 -X   git.xengi.de/ffd/indexer/internal/version.Commit=a1b2c3d"
+//
+// (the flake sets these from `version` and `shortRev`). When built with a
+// plain `go build`/`go run` the variables stay empty and the binary reports
+// itself as the development build.
+package version
+
+import (
+	"fmt"
+	"runtime"
+)
+
+// Version is the application version, overridden at build time.
+var Version = ""
+
+// Commit is the git commit the binary was built from, overridden at build time.
+var Commit = ""
+
+// PrintFull writes the canonical multi-line version block to stdout. This is
+// the human-readable format used by kubectl, docker, kind and friends:
+//
+//	Version:      1.2.3
+//	Commit:       a1b2c3d
+//	Go version:   go1.27.1
+//
+// Empty values are printed as "dev" so the output is always self-explanatory.
+func PrintFull() {
+	v := Version
+	if v == "" {
+		v = "dev"
+	}
+	c := Commit
+	if c == "" {
+		c = "dev"
+	}
+	fmt.Printf("Version:      %s\n", v)
+	fmt.Printf("Commit:       %s\n", c)
+	fmt.Printf("Go version:   %s\n", runtime.Version())
+}