gentoo-overlay/gnome-base/dconf/files/0.40.0-bash-completion-dir.patch

From 43393af96308d001c30ac14c32000519253fe910 Mon Sep 17 00:00:00 2001
From: Mart Raudsepp <leio@gentoo.org>
Date: Fri, 22 Feb 2019 22:06:18 +0200
Subject: [PATCH] build: Allow passing bash-completion dir and have a generic
 fallback

With autotools the installation path was just hardcoded to the usual
location. In meson it was made to always check the path from
bash-completion.pc, but some downstream might want to install the
file without a bash-completion build-dep. Allow installing the
completion file to a passed directory, and add back the fallback
path if an explicit directory isn't passed and bash-completion
package isn't found. This is also what the tracker project does.
---
 meson.build       | 26 ++++++++++++++++++--------
 meson_options.txt |  2 +-
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/meson.build b/meson.build
index b81a81a..7c790c1 100644
--- a/meson.build
+++ b/meson.build
@@ -62,14 +62,24 @@ if systemd_userunitdir == ''
   endif
 endif
 
-enable_bash_completion = get_option('bash_completion')
-if enable_bash_completion
-  bash_completion_dep = dependency('bash-completion')
-  completions_dir = bash_completion_dep.get_pkgconfig_variable(
-    'completionsdir',
-    # bash-completion 2.10 changed the substitutions
-    define_variable: bash_completion_dep.version().version_compare('>= 2.10') ? ['datadir', dconf_datadir] : ['prefix', dconf_prefix],
-  )
+enable_bash_completion = false
+if get_option('bash_completion_dir') == 'yes' or get_option('bash_completion_dir') == 'auto'
+  bash_completion_dep = dependency('bash-completion', required: false)
+  if bash_completion_dep.found()
+    completions_dir = bash_completion_dep.get_pkgconfig_variable(
+      'completionsdir',
+      # bash-completion 2.10 changed the substitutions
+      define_variable: bash_completion_dep.version().version_compare('>= 2.10') ? ['datadir', dconf_datadir] : ['prefix', dconf_prefix],
+    )
+  else
+    completions_dir = join_paths(dconf_datadir, 'bash-completion', 'completions')
+  endif
+  enable_bash_completion = true
+elif get_option('bash_completion_dir') == 'no' or get_option('bash_completion_dir') == ''
+  enable_bash_completion = false
+else
+  enable_bash_completion = true
+  completions_dir = get_option('bash_completion_dir')
 endif
 
 configure_file(
diff --git a/meson_options.txt b/meson_options.txt
index 1b85d5d..7f5afcc 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,4 +1,4 @@
-option('bash_completion', type: 'boolean', value: true, description: 'install bash completion files')
+option('bash_completion_dir', type: 'string', value: 'yes', description: 'directory to install Bash completion files (or "yes" for default directory, "no" to disable installation)')
 option('man', type: 'boolean', value: true, description: 'generate man pages')
 option('gtk_doc', type: 'boolean', value: false, description: 'use gtk-doc to build documentation')
 option('vapi', type: 'boolean', value: true, description: 'install dconf client vapi')
-- 
2.26.2