From 8850b50624529ddb81ead04cf50b39b152dda814 Mon Sep 17 00:00:00 2001
From: Umar Getagazov <umar@handlerug.me>
Date: Wed, 14 Sep 2022 03:18:02 +0300
Subject: [PATCH] Get version from the help

I'm going to get executed for this crime
---
 Makefile           |  3 +--
 version/version.go | 28 +++++++++++++++++++---------
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/Makefile b/Makefile
index fe0aec9..2288cb6 100644
--- a/Makefile
+++ b/Makefile
@@ -5,13 +5,12 @@ PREFIX=/usr/local
 BINDIR=$(PREFIX)/bin
 MANDIR=$(PREFIX)/share/man
 GO=go
-LDFLAGS=-X "github.com/bouncepaw/mycorrhiza/version.taggedRelease=$$(git describe --tags --abbrev=0)"
 
 all: mycorrhiza
 
 mycorrhiza:
 	$(GO) generate $(GOFLAGS)
-	CGO_ENABLED=0 $(GO) build -ldflags="$(LDFLAGS)" $(GOFLAGS) -o mycorrhiza .
+	CGO_ENABLED=0 $(GO) build $(GOFLAGS) -o mycorrhiza .
 
 install:
 	mkdir -m755 -p $(DESTDIR)$(BINDIR) $(DESTDIR)$(MANDIR)/man1
diff --git a/version/version.go b/version/version.go
index 708a0d6..84dcd39 100644
--- a/version/version.go
+++ b/version/version.go
@@ -1,25 +1,35 @@
 package version
 
 import (
+	"regexp"
 	"runtime/debug"
 	"strconv"
+
+	"github.com/bouncepaw/mycorrhiza/help"
 )
 
-// This is set through ldflags='-X ...' in the Makefile
-var taggedRelease string = "unknown"
+var tag = "unknown"
+var versionRegexp = regexp.MustCompile(`This is documentation for \*\*Mycorrhiza Wiki\*\* (.*).`)
+
+func init() {
+	if b, err := help.Get("en"); err == nil {
+		matches := versionRegexp.FindSubmatch(b)
+		if matches != nil {
+			tag = "v" + string(matches[1])
+		}
+	}
+}
 
 func FormatVersion() string {
-	var commitHash string = ""
-	var dirty string = ""
-
+	var commit, dirty string
 	info, ok := debug.ReadBuildInfo()
 
 	if ok {
 		for _, setting := range info.Settings {
 			if setting.Key == "vcs.revision" {
-				commitHash = "+" + setting.Value
-				if len(commitHash) > 8 {
-					commitHash = commitHash[:8]
+				commit = "+" + setting.Value
+				if len(commit) > 8 {
+					commit = commit[:8]
 				}
 			} else if setting.Key == "vcs.modified" {
 				modified, err := strconv.ParseBool(setting.Value)
@@ -30,5 +40,5 @@ func FormatVersion() string {
 		}
 	}
 
-	return taggedRelease + commitHash + dirty
+	return tag + commit + dirty
 }