Merge pull request #1924 from mesonbuild/tingping/yelp-fixes

Various yelp fixes

6 files changed, 34 insertions, 5 deletions

diff --git a/docs/markdown/Gnome-module.md b/docs/markdown/Gnome-module.md
index 61b88ad..805ceaa 100644
--- a/docs/markdown/Gnome-module.md
+++ b/docs/markdown/Gnome-module.md
@@ -127,9 +127,11 @@ This also creates two targets for translations `help-$project-update-po` and `he
 
 * `sources`: list of pages
 * `media`: list of media such as images
-* `symlink_media`: if media should be symlinked (requires newish yelp) defaults to `false`
+* `symlink_media`: if media should be symlinked not copied (defaults to `true` since 0.41.0)
 * `languages`: list of languages for translations
 
+Note that very old versions of yelp may not support symlinked media; At least 3.10 should work.
+
 *Added 0.36.0*
 
 ### gnome.gtkdoc()
diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
index 6ec7040..6c22976 100644
--- a/mesonbuild/modules/gnome.py
+++ b/mesonbuild/modules/gnome.py
@@ -619,7 +619,7 @@ class GnomeModule(ExtensionModule):
 
         langs = mesonlib.stringlistify(kwargs.pop('languages', []))
         media = mesonlib.stringlistify(kwargs.pop('media', []))
-        symlinks = kwargs.pop('symlink_media', False)
+        symlinks = kwargs.pop('symlink_media', True)
 
         if not isinstance(symlinks, bool):
             raise MesonException('symlink_media must be a boolean')
diff --git a/mesonbuild/scripts/yelphelper.py b/mesonbuild/scripts/yelphelper.py
index 47dfb71..978a870 100644
--- a/mesonbuild/scripts/yelphelper.py
+++ b/mesonbuild/scripts/yelphelper.py
@@ -74,13 +74,24 @@ def install_help(srcdir, blddir, sources, media, langs, install_dir, destdir, pr
             if not os.path.exists(infile):
                 if lang == 'C':
                     mlog.warning('Media file "%s" did not exist in C directory' % m)
+                    continue
                 elif symlinks:
                     srcfile = os.path.join(c_install_dir, m)
                     mlog.log('Symlinking %s to %s.' % (outfile, srcfile))
                     if '/' in m or '\\' in m:
                         os.makedirs(os.path.dirname(outfile), exist_ok=True)
-                    os.symlink(srcfile, outfile)
-                continue
+                    try:
+                        try:
+                            os.symlink(srcfile, outfile)
+                        except FileExistsError:
+                            os.remove(outfile)
+                            os.symlink(srcfile, outfile)
+                        continue
+                    except (NotImplementedError, OSError):
+                        mlog.warning('Symlinking not supported, falling back to copying')
+                else:
+                    # Lang doesn't have media file so copy it over 'C' one
+                    infile = os.path.join(srcdir, 'C', m)
             mlog.log('Installing %s to %s' % (infile, outfile))
             if '/' in m or '\\' in m:
                 os.makedirs(os.path.dirname(outfile), exist_ok=True)
diff --git a/run_project_tests.py b/run_project_tests.py
index 66d7eb0..3c89d75 100755
--- a/run_project_tests.py
+++ b/run_project_tests.py
@@ -214,7 +214,8 @@ def validate_install(srcdir, installdir, compiler):
                 expected[platform_fix_name(line.strip())] = False
     # Check if expected files were found
     for fname in expected:
-        if os.path.exists(os.path.join(installdir, fname)):
+        file_path = os.path.join(installdir, fname)
+        if os.path.exists(file_path) or os.path.islink(file_path):
             expected[fname] = True
     for (fname, found) in expected.items():
         if not found:
diff --git a/test cases/frameworks/13 yelp/help/meson.build b/test cases/frameworks/13 yelp/help/meson.build
index 7c6f01d..85bc980 100644
--- a/test cases/frameworks/13 yelp/help/meson.build
+++ b/test cases/frameworks/13 yelp/help/meson.build
@@ -3,5 +3,13 @@ gnome = import('gnome')
 gnome.yelp('meson',
    sources: 'index.page',
    media: 'media/test.txt',
+   symlink_media: false,
+   languages: ['de', 'es'],
+)
+
+gnome.yelp('meson-symlink',
+   sources: 'index.page',
+   media: 'media/test.txt',
+   symlink_media: true,
    languages: ['de', 'es'],
 )
diff --git a/test cases/frameworks/13 yelp/installed_files.txt b/test cases/frameworks/13 yelp/installed_files.txt
index 59d2158..9fc097d 100644
--- a/test cases/frameworks/13 yelp/installed_files.txt
+++ b/test cases/frameworks/13 yelp/installed_files.txt
@@ -3,3 +3,10 @@ usr/share/help/C/meson/media/test.txt
 usr/share/help/es/meson/index.page
 usr/share/help/es/meson/media/test.txt
 usr/share/help/de/meson/index.page
+usr/share/help/de/meson/media/test.txt
+usr/share/help/C/meson-symlink/index.page
+usr/share/help/C/meson-symlink/media/test.txt
+usr/share/help/es/meson-symlink/media/test.txt
+usr/share/help/es/meson-symlink/index.page
+usr/share/help/de/meson-symlink/index.page
+usr/share/help/de/meson-symlink/media/test.txt