From 7fb4bbf13d7bf8ad850cce0e05731dba90175bbf Mon Sep 17 00:00:00 2001
From: Stelios Tsampas <loathingkernel@gmail.com>
Date: Sun, 3 Mar 2024 19:09:44 +0200
Subject: [PATCH] Generate version information for `ULWGL_VERSIONS.json`

---
 ULWGL/meson.build       | 40 +++++++++++++++++++++++++++++++++-------
 meson.build             | 12 ++++++------
 subprojects/reaper.wrap |  3 +++
 3 files changed, 42 insertions(+), 13 deletions(-)

diff --git a/ULWGL/meson.build b/ULWGL/meson.build
index f8a0aa515..9336d4518 100644
--- a/ULWGL/meson.build
+++ b/ULWGL/meson.build
@@ -1,3 +1,19 @@
+sed = find_program('sed')
+git = find_program('git')
+
+ulwgl_run = custom_target('ulwgl_run',
+    input : 'ulwgl-run.in',
+    output : 'ulwgl-run',
+    command : [
+        sed,
+        '-e', 's|##INSTALL_PATH##|' + get_option('prefix') / get_option('datadir') / meson.project_name() + '|g',
+        '@INPUT@'
+    ],
+    capture : true,
+    install : true,
+    install_dir : get_option('bindir'),
+)
+
 install_data(
     [
         'ulwgl_consts.py',
@@ -5,7 +21,6 @@ install_data(
         'ulwgl_log.py',
         'ulwgl_plugins.py',
         'ulwgl_util.py',
-        'ULWGL_VERSION.json',
     ],
     install_dir: get_option('datadir') / meson.project_name(),
 )
@@ -16,14 +31,25 @@ install_data(
     install_dir: get_option('datadir') / meson.project_name(),
     install_mode: 'rwxr-xr-x',
 )
-sed = find_program('sed')
-ulwgl_run = custom_target('ulwgl_run',
-    input : 'ulwgl-run.in',
-    output : 'ulwgl-run',
-    command : [sed, 's|##INSTALL_PATH##|' + get_option('prefix') / get_option('datadir') / meson.project_name() + '|g', '@INPUT@'],
+
+ulwgl_desc = run_command(
+    git, '-C', meson.source_root(), 'describe', '--always', '--long', '--tags', check: true
+).stdout().strip()
+reaper_desc = run_command(
+    git, '-C', meson.source_root() / 'subprojects/reaper', 'describe', '--always', '--long', '--tags', check: true
+).stdout().strip()
+ulwgl_version = custom_target(
+    input : 'ULWGL_VERSION.json.in',
+    output : 'ULWGL_VERSION.json',
+    command : [
+        sed,
+        '-e', 's|##ULWGL_VERSION##|' + ulwgl_desc + '|g',
+        '-e', 's|##REAPER_VERSION##|' + reaper_desc + '|g',
+        '@INPUT@'
+    ],
     capture : true,
     install : true,
-    install_dir : get_option('bindir'),
+    install_dir: get_option('datadir') / meson.project_name(),
 )
 
 subdir('ULWGL-Launcher')
diff --git a/meson.build b/meson.build
index 3f757b34b..4d5c1d851 100644
--- a/meson.build
+++ b/meson.build
@@ -1,14 +1,14 @@
 project('ulwgl',
     ['cpp'],
-    license :  'GPL-3.0-only'
+    license :  'GPL-3.0-only',
+    license_files : ['LICENSE'],
 )
 
-reaper_options = [
-    'prefix=' + get_option('prefix'),
-    'bindir=' + get_option('prefix') / get_option('datadir') / meson.project_name(),
-]
 reaper = subproject('reaper',
-    default_options : reaper_options
+    default_options : [
+        'prefix=' + get_option('prefix'),
+        'bindir=' + get_option('prefix') / get_option('datadir') / meson.project_name(),
+    ],
 )
 
 subdir('ULWGL')
diff --git a/subprojects/reaper.wrap b/subprojects/reaper.wrap
index e17b5ffd1..1b456d6cc 100644
--- a/subprojects/reaper.wrap
+++ b/subprojects/reaper.wrap
@@ -3,3 +3,6 @@ directory = reaper
 url = https://github.com/Plagman/reaper.git
 revision = head
 depth = 1
+
+[provide]
+program_names = reaper