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authorJakob Unterwurzacher2022-12-29 14:43:09 +0100
committerJakob Unterwurzacher2022-12-29 14:43:48 +0100
commit99cdaa0b69e884128e8f673f96bd4d3e32743d80 (patch)
tree8323fdf44a3d63bf447a9bb81909070fc1bc4cd7 /version.go
parent439dea1b198a9edd384e3b9763a9c5672ce62b67 (diff)
main: refactor BuildInfo code
Simplify and move it into a new file version.go.
Diffstat (limited to 'version.go')
-rw-r--r--version.go103
1 files changed, 103 insertions, 0 deletions
diff --git a/version.go b/version.go
new file mode 100644
index 0000000..97bf83a
--- /dev/null
+++ b/version.go
@@ -0,0 +1,103 @@
+package main
+
+import (
+ "fmt"
+ "runtime"
+ "runtime/debug"
+ "strconv"
+ "strings"
+
+ "github.com/rfjakob/gocryptfs/v2/internal/stupidgcm"
+ "github.com/rfjakob/gocryptfs/v2/internal/tlog"
+)
+
+const (
+ gitVersionNotSet = "[GitVersion not set - please compile using ./build.bash]"
+ gitVersionFuseNotSet = "[GitVersionFuse not set - please compile using ./build.bash]"
+ buildDateNotSet = "0000-00-00"
+)
+
+var (
+ // GitVersion is the gocryptfs version according to git, set by build.bash
+ GitVersion = gitVersionNotSet
+ // GitVersionFuse is the go-fuse library version, set by build.bash
+ GitVersionFuse = gitVersionFuseNotSet
+ // BuildDate is a date string like "2017-09-06", set by build.bash
+ BuildDate = buildDateNotSet
+)
+
+func init() {
+ versionFromBuildInfo()
+}
+
+// raceDetector is set to true by race.go if we are compiled with "go build -race"
+var raceDetector bool
+
+// printVersion prints a version string like this:
+// gocryptfs v1.7-32-gcf99cfd; go-fuse v1.0.0-174-g22a9cb9; 2019-05-12 go1.12 linux/amd64
+func printVersion() {
+ var tagsSlice []string
+ if stupidgcm.BuiltWithoutOpenssl {
+ tagsSlice = append(tagsSlice, "without_openssl")
+ }
+ tags := ""
+ if tagsSlice != nil {
+ tags = " " + strings.Join(tagsSlice, " ")
+ }
+ built := fmt.Sprintf("%s %s", BuildDate, runtime.Version())
+ if raceDetector {
+ built += " -race"
+ }
+ fmt.Printf("%s %s%s; go-fuse %s; %s %s/%s\n",
+ tlog.ProgramName, GitVersion, tags, GitVersionFuse, built,
+ runtime.GOOS, runtime.GOARCH)
+}
+
+// versionFromBuildInfo tries to get some information out of the information baked in
+// by the Go compiler. Does nothing when build.bash was used to build.
+func versionFromBuildInfo() {
+ info, ok := debug.ReadBuildInfo()
+ if !ok {
+ tlog.Debug.Println("versionFromBuildInfo: ReadBuildInfo() failed")
+ return
+ }
+ // Parse BuildSettings
+ var vcsRevision, vcsTime string
+ var vcsModified bool
+ for _, s := range info.Settings {
+ switch s.Key {
+ case "vcs.revision":
+ vcsRevision = s.Value
+ case "vcs.time":
+ vcsTime = s.Value
+ case "vcs.modified":
+ vcsModified, _ = strconv.ParseBool(s.Value)
+ }
+ }
+ // Fill our version strings
+ if GitVersion == gitVersionNotSet {
+ GitVersion = info.Main.Version
+ if GitVersion == "(devel)" && vcsRevision != "" {
+ GitVersion = fmt.Sprintf("vcs.revision=%s", vcsRevision)
+ }
+ if vcsModified {
+ GitVersion += "-dirty"
+ }
+ }
+ if GitVersionFuse == gitVersionFuseNotSet {
+ for _, m := range info.Deps {
+ if m.Path == "github.com/hanwen/go-fuse/v2" {
+ GitVersionFuse = m.Version
+ if m.Replace != nil {
+ GitVersionFuse = m.Replace.Version
+ }
+ break
+ }
+ }
+ }
+ if BuildDate == buildDateNotSet {
+ if vcsTime != "" {
+ BuildDate = fmt.Sprintf("vcs.time=%s", vcsTime)
+ }
+ }
+}