From 2ce6e4218a4140f90095dcd6546a36c99a0ced0e Mon Sep 17 00:00:00 2001
From: Krayfaus <krayfaus@protonmail.com>
Date: Thu, 17 Oct 2019 23:13:33 +0000
Subject: [PATCH] Support localized man pages

This commit updates meson.build to:
* build and install localized man pages.

Notes:
Current scdoc files were moved to ease
the management of locales in the future.
The new doc directory in sway, swaybar,
swaymsg and swaynag shall have a similar
structure to that of man: where English
files are kept in root dir and localized
ones are nested in their respective dir.
---
 meson.build | 89 +++++++++++++++++++++++++++++++++++------------------
 1 file changed, 59 insertions(+), 30 deletions(-)

diff --git a/meson.build b/meson.build
index d74861f1e..3f74dec99 100644
--- a/meson.build
+++ b/meson.build
@@ -93,37 +93,66 @@ conf_data.set10('HAVE_TRAY', have_tray)
 
 scdoc = dependency('scdoc', version: '>=1.9.2', native: true, required: get_option('man-pages'))
 if scdoc.found()
-	scdoc_prog = find_program(scdoc.get_pkgconfig_variable('scdoc'), native: true)
-	sh = find_program('sh', native: true)
-	mandir = get_option('mandir')
-	man_files = [
-		'sway/sway.1.scd',
-		'sway/sway.5.scd',
-		'sway/sway-bar.5.scd',
-		'sway/sway-input.5.scd',
-		'sway/sway-ipc.7.scd',
-		'sway/sway-output.5.scd',
-		'swaybar/swaybar-protocol.7.scd',
-		'swaymsg/swaymsg.1.scd',
-		'swaynag/swaynag.1.scd',
-		'swaynag/swaynag.5.scd',
-	]
-	foreach filename : man_files
-		topic = filename.split('.')[-3].split('/')[-1]
-		section = filename.split('.')[-2]
-		output = '@0@.@1@'.format(topic, section)
+  scdoc_prog = find_program(scdoc.get_pkgconfig_variable('scdoc'), native: true)
+  sh = find_program('sh', native: true)
+  mandir = get_option('mandir')
+  man_files = {
+    'sway': [
+      'sway.1.scd',
+      'sway.5.scd',
+      'sway-bar.5.scd',
+      'sway-input.5.scd',
+      'sway-ipc.7.scd',
+      'sway-output.5.scd'
+    ],
+    'swaybar': [
+      'swaybar-protocol.7.scd'
+    ],
+    'swaymgs': [
+      'swaymsg.1.scd'
+    ],
+    'swaynag': [
+      'swaynag.1.scd',
+      'swaynag.5.scd'
+    ]
+  }
+  locales = ['en']
 
-		custom_target(
-			output,
-			input: filename,
-			output: output,
-			command: [
-				sh, '-c', '@0@ < @INPUT@ > @1@'.format(scdoc_prog.path(), output)
-			],
-			install: true,
-			install_dir: '@0@/man@1@'.format(mandir, section)
-		)
-	endforeach
+  foreach proj, sources: man_files
+    foreach locale: locales
+      if locale == 'en'
+        docdir = mandir
+        projdir = join_paths(meson.source_root(), proj, 'doc')
+        outdir = join_paths(meson.build_root(), 'doc')
+      else
+        docdir = join_paths(mandir, locale)
+        projdir = join_paths(meson.source_root(), proj, 'doc', locale)
+        outdir = join_paths(meson.build_root(), 'doc', locale)
+      endif
+
+      # Checks if locale dir exists before proceeding with scdoc compilation
+      if run_command('[', '-d', projdir, ']').returncode() == 0
+        if run_command('[', '-d', outdir, ']').returncode() != 0
+          if run_command('mkdir', outdir).returncode() != 0
+            warning('Failed to create directory at: @0@'.format(outdir))
+          endif
+        endif
+
+        foreach filename: sources
+          input = join_paths(projdir, filename)
+          if run_command('[', '-e', input, ']').returncode() == 0
+            topic = input.split('.')[-3].split('/')[-1]
+            section = input.split('.')[-2]
+            output = '@0@/@1@.@2@'.format(outdir, topic, section)
+            cmd = '@0@ < @1@ > @2@'.format(scdoc_prog.path(), input, output)
+            if run_command(sh, '-c', cmd).returncode() == 0
+              install_data(output, install_dir: docdir)
+            endif
+          endif
+        endforeach
+      endif
+    endforeach
+  endforeach
 endif
 
 add_project_arguments('-DSYSCONFDIR="/@0@"'.format(join_paths(prefix, sysconfdir)), language : 'c')