[geary] Use GNOME odd/even version numbering to detect if running -dev

[Michael Gratton <mjog src gnome org>]

commit 322bdd2d4212b8189c48a14e15f42ad36a9bde11
Author: Michael Gratton <mike vee net>
Date:   Sun Apr 28 17:55:59 2019 +1000

    Use GNOME odd/even version numbering to detect if running -dev
    
    Since switching to the GNOME release schedule, we need to do unstable
    releases off of mainline, which means we need to update the version
    number (and drop the "-dev" suffix) so tarballs etc get the right
    version.
    
    Instead of looking for the -dev suffix, parse the version number
    to determine if we should display the revision in About.

 meson.build                                   |  6 +++-
 src/client/application/geary-application.vala | 41 ++++++++++++++++++++++++---
 src/console/main.vala                         |  2 +-
 src/geary-version.vala.in                     | 17 ++++++++---
 src/meson.build                               | 29 +++++++++----------
 5 files changed, 69 insertions(+), 26 deletions(-)
---
diff --git a/meson.build b/meson.build
index cc557b58..08115c93 100644
--- a/meson.build
+++ b/meson.build
@@ -182,9 +182,13 @@ conf.set_quoted('_WEB_EXTENSIONS_DIR', web_extensions_dir)
 conf.set_quoted('LANGUAGE_SUPPORT_DIRECTORY', locale_dir)
 conf.set_quoted('ISO_CODE_639_XML', iso_639_xml)
 conf.set_quoted('ISO_CODE_3166_XML', iso_3166_xml)
+conf.set('GCR_API_SUBJECT_TO_CHANGE', true)
 conf.set('HAVE_FTS3_TOKENIZE', true)
+# geary-version.vala.in gets configured twice (once for the version,
+# once for the revision), so make sure the revision template carries
+# through to the second time.
+conf.set('REVISION', '@REVISION@')
 conf.set('VERSION', meson.project_version())
-conf.set('GCR_API_SUBJECT_TO_CHANGE', true)
 configure_file(output: 'config.h', configuration: conf)
 
 # Post-install scripts
diff --git a/src/client/application/geary-application.vala b/src/client/application/geary-application.vala
index 69d00b97..bd413d3e 100644
--- a/src/client/application/geary-application.vala
+++ b/src/client/application/geary-application.vala
@@ -28,7 +28,7 @@ public class GearyApplication : Gtk.Application {
     public const string WEBSITE_LABEL = _("Visit the Geary web site");
     public const string BUGREPORT = "https://wiki.gnome.org/Apps/Geary/ReportingABug";;
 
-    public const string VERSION = Geary.Version.GEARY_VERSION;
+    public const string VERSION = Geary.Version.NUMBER;
     public const string INSTALL_PREFIX = _INSTALL_PREFIX;
     public const string GSETTINGS_DIR = _GSETTINGS_DIR;
     public const string SOURCE_ROOT_DIR = _SOURCE_ROOT_DIR;
@@ -66,6 +66,7 @@ public class GearyApplication : Gtk.Application {
 
     // Local-only command line options
     private const string OPTION_VERSION = "version";
+    private const string OPTION_VERSION_FULL = "version-full";
 
     // Local command line options
     private const string OPTION_DEBUG = "debug";
@@ -146,6 +147,10 @@ public class GearyApplication : Gtk.Application {
           /// Command line option
           N_("Display program version"), null },
           // Use this to specify arguments in the help section
+        { OPTION_VERSION_FULL, 'V', 0, GLib.OptionArg.NONE, null,
+          /// Command line option
+          N_("Display program version and revision id"), null },
+          // Use this to specify arguments in the help section
         { GLib.OPTION_REMAINING, 0, 0, GLib.OptionArg.STRING_ARRAY, null, null,
           "[mailto:[...]]"; },
         { null }
@@ -271,6 +276,7 @@ public class GearyApplication : Gtk.Application {
 
         /// Application runtime information label
         info.add({ _("Geary version"), VERSION });
+        info.add({ _("Geary revision"), Geary.Version.ID });
         /// Application runtime information label
         info.add({ _("GTK version"),
                     "%u.%u.%u".printf(
@@ -385,6 +391,14 @@ public class GearyApplication : Gtk.Application {
                 "%s: %s\n", this.binary, GearyApplication.VERSION
             );
             return 0;
+        } else if (options.contains(OPTION_VERSION_FULL)) {
+            GLib.stdout.printf(
+                "%s: %s (%s)\n",
+                this.binary,
+                GearyApplication.VERSION,
+                Geary.Version.ID
+            );
+            return 0;
         }
 
         return -1;
@@ -469,6 +483,22 @@ public class GearyApplication : Gtk.Application {
     public async void show_about() {
         yield this.present();
 
+        // Use just the version string for stable builds, i.e. those
+        // with even-numbered minor revisions like "3.32.0", but show
+        // the version number and revision for unstable builds
+        // i.e. those with odd-numbered minor revisions like "3.33.0"
+        string displayed_version = VERSION;
+        string[] version_parts = VERSION.split(".");
+        if (version_parts.length >= 2) {
+            int minor = int.parse(version_parts[1]);
+            if (minor % 2 == 1) {
+                displayed_version = "%s (%s)".printf(
+                    Geary.Version.NUMBER,
+                    Geary.Version.ID
+                );
+            }
+        }
+
         Gtk.show_about_dialog(get_active_window(),
             "program-name", NAME,
             "comments", DESCRIPTION,
@@ -476,7 +506,7 @@ public class GearyApplication : Gtk.Application {
             "copyright", string.join("\n", COPYRIGHT_1, COPYRIGHT_2),
             "license-type", Gtk.License.LGPL_2_1,
             "logo-icon-name", APP_ID,
-            "version", VERSION,
+            "version", displayed_version,
             "website", WEBSITE,
             "website-label", WEBSITE_LABEL,
             "title", _("About %s").printf(NAME),
@@ -674,8 +704,11 @@ public class GearyApplication : Gtk.Application {
         lock (this.controller) {
             if (this.controller == null) {
                 message(
-                    "%s %s prefix=%s exec_dir=%s is_installed=%s",
-                    NAME, VERSION, INSTALL_PREFIX,
+                    "%s %s (%s) prefix=%s exec_dir=%s is_installed=%s",
+                    NAME,
+                    VERSION,
+                    Geary.Version.ID,
+                    INSTALL_PREFIX,
                     exec_dir.get_path(),
                     this.is_installed.to_string()
                 );
diff --git a/src/console/main.vala b/src/console/main.vala
index 8a95acbc..b3e69fa0 100644
--- a/src/console/main.vala
+++ b/src/console/main.vala
@@ -409,7 +409,7 @@ class ImapConsole : Gtk.Window {
 
         Gee.HashMap<string, string> fields = new Gee.HashMap<string, string>();
         fields.set("name", "geary-console");
-        fields.set("version", Geary.Version.GEARY_VERSION);
+        fields.set("version", Geary.Version.NUMBER);
 
         this.cx.send_command(new Geary.Imap.IdCommand(fields));
     }
diff --git a/src/geary-version.vala.in b/src/geary-version.vala.in
index 42a45a36..cb2fcdcb 100644
--- a/src/geary-version.vala.in
+++ b/src/geary-version.vala.in
@@ -1,9 +1,18 @@
-/* Copyright 2016 Software Freedom Conservancy Inc.
+/*
+ * Copyright 2016 Software Freedom Conservancy Inc.
+ * Copyright 2019 Michael Gratton <mike vee net>
  *
  * This software is licensed under the GNU Lesser General Public License
- * (version 2.1 or later).  See the COPYING file in this distribution.
+ * (version 2.1 or later). See the COPYING file in this distribution.
  */
 
+/** Provides access to Engine version and revision numbers. */
 namespace Geary.Version {
-public const string GEARY_VERSION = "@VERSION@";
-}
\ No newline at end of file
+
+    /** The current version number for this build. */
+    public const string NUMBER = "@VERSION@";
+
+    /** The source code identifier for this build. */
+    public const string ID = "@REVISION@";
+
+}
diff --git a/src/meson.build b/src/meson.build
index 175c4aa9..efeb9407 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,21 +1,18 @@
 # Version
 
-if meson.project_version().endswith('-dev')
-  # Development build
-  geary_version_vala = vcs_tag(
-    command: '../build-aux/git_version.py',
-    input: 'geary-version.vala.in',
-    output: 'geary-version.vala',
-    replace_string: '@VERSION@'
-  )
-else
-  # Release build
-  geary_version_vala = configure_file(
-    input: 'geary-version.vala.in',
-    output: 'geary-version.vala',
-    configuration: conf,
-  )
-endif
+geary_version_in = configure_file(
+  input: 'geary-version.vala.in',
+  output: 'geary-version.vala.in',
+  configuration: conf,
+  install: false
+)
+
+geary_version_vala = vcs_tag(
+  command: '../build-aux/git_version.py',
+  input: geary_version_in,
+  output: 'geary-version.vala',
+  replace_string: '@REVISION@'
+)
 
 # Common vala options
 geary_vala_options = [