feat: Add support for livechart-2 (#352)

Author: ryonakano

README.md

@@ -58,6 +58,7 @@ You'll need the following dependencies to build:
 * libgtk-4-dev (>= 4.10)
 * [libryokucha](https://github.com/ryonakano/ryokucha)
 * [livechart](https://github.com/lcallarec/live-chart) (>= 1.10.0)
+    * alternatively, [livechart-2 (the elementary fork)](https://github.com/elementary/live-chart) (>= 2.0.0)
 * meson (>= 0.58.0)
 * valac
 

src/meson.build

@@ -11,6 +11,14 @@ config_file = configure_file(
     configuration: config_data
 )
 
+# Check for the elementary fork first
+livechart_dep = dependency('livechart-2', version: '>= 2.0.0', required: false)
+if not livechart_dep.found()
+    # Check for the upstream next
+    # Fallback to the upstream submodule finally even if it not found
+    livechart_dep = dependency('livechart', version: '>= 1.10.0', allow_fallback: get_option('use_submodule'))
+endif
+
 granite_dep = dependency('granite-7', version: '>= 7.2.0', required: get_option('granite'))
 if granite_dep.found()
     add_project_arguments('--define=USE_GRANITE', language: 'vala')
@@ -23,7 +31,7 @@ dependencies = [
     dependency('gstreamer-1.0', version: '>= 1.20'),
     dependency('gtk4', version: '>= 4.10'),
     dependency('libadwaita-1'),
-    dependency('livechart', version: '>= 1.10.0', allow_fallback: get_option('use_submodule')),
+    livechart_dep,
     dependency('pango'),
     dependency('ryokucha', allow_fallback: get_option('use_submodule')),
 ]