feat(template): show GitHub links in about page only when tag and commit are available

Makefile

@@ -1,6 +1,6 @@
 APP             := miniflux
 DOCKER_IMAGE    := miniflux/miniflux
-VERSION         := $(shell git describe --tags --abbrev=0 2>/dev/null)
+VERSION         := $(shell git describe --tags --exact-match 2>/dev/null)
 LD_FLAGS        := "-s -w -X 'miniflux.app/v2/internal/version.Version=$(VERSION)'"
 PKG_LIST        := $(shell go list ./... | grep -v /vendor/)
 DB_URL          := postgres://postgres:postgres@localhost/miniflux_test?sslmode=disable

internal/template/functions.go

@@ -32,6 +32,7 @@ type funcMap struct {
 // Map returns a map of template functions that are compiled during template parsing.
 func (f *funcMap) Map() template.FuncMap {
 	return template.FuncMap{
+		"startsWith":       strings.HasPrefix,
 		"formatFileSize":   formatFileSize,
 		"dict":             dict,
 		"truncate":         truncate,

internal/template/templates/views/about.html

@@ -11,9 +11,23 @@
 <div class="panel">
     <h3>Miniflux</h3>
     <ul>
-        <li><strong>{{ t "page.about.version" }}</strong> <a href="https://github.com/miniflux/v2/releases/tag/{{ .version }}">{{ .version }}</a></li>
+        <li>
+            <strong>{{ t "page.about.version" }}</strong>&nbsp;
+            {{ if startsWith .version "2." }}
+                <a href="https://github.com/miniflux/v2/releases/tag/{{ .version }}">{{ .version }}</a>
+            {{ else }}
+                {{ .version }}
+            {{ end }}
+        </li>
 	{{ if .commit }}
-        <li><strong>{{ t "page.about.git_commit" }}</strong> <a href="https://github.com/miniflux/v2/commit/{{ .commit }}">{{ .commit }}</a></li>
+        <li>
+            <strong>{{ t "page.about.git_commit" }}</strong>&nbsp;
+            {{ if startsWith .commit "Unknown" }}
+                {{ .commit }}
+            {{ else }}
+                <a href="https://github.com/miniflux/v2/commit/{{ .commit }}">{{ .commit }}</a>
+            {{ end }}
+        </li>
 	{{ end }}
         <li><strong>{{ t "page.about.build_date" }}</strong> {{ .build_date }}</li>
     	<li><strong>{{t "page.about.go_version" }}</strong> {{ .go_version }}</li>