[epiphany] Compile gsettings schemas in build directory

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 8e0f8b963063c744afe862cbdb0c17438bc846be
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Fri Mar 2 20:46:43 2018 -0600

    Compile gsettings schemas in build directory
    
    This allows us to run the tests in situations where Epiphany is not
    installed on the host system, e.g. when running under BuildStream.
    
    As a bonus, we'll point Epiphany here as well when built in developer
    mode, so that it can be run from the build directory when uninstalled.
    This is needed to facilitate easy build/test/run inside BuildStream.

 data/meson.build  |   26 +++++++++++++-
 src/ephy-main.c   |    4 ++
 src/meson.build   |    1 +
 tests/meson.build |   97 +++++++++++++++++++++++++++++++++++++++++++----------
 4 files changed, 108 insertions(+), 20 deletions(-)
---
diff --git a/data/meson.build b/data/meson.build
index 6ccd5bb..492890e 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -19,14 +19,23 @@ i18n.merge_file('appdata-file',
   po_dir: '../po'
 )
 
+# We need three custom_target() calls because Meson doesn't have very
+# good support for GSettings yet. First, generate our GSettings enums
+# in the build directory. Then, copy the gschema into the build
+# directory to ensure it is in the same place as the enums file. Then
+# we can run glib-compile-schemas on it. We have to compile schemas in
+# the build directory to ensure that our tests don't fail if run on a
+# system where epiphany is not already installed. epiphany will also
+# look for schemas here if built in developer mode.
+#
 # https://github.com/mesonbuild/meson/issues/1687
-custom_target('gsettings-enums',
+generate_enums = custom_target('gsettings-enums',
   input: '../lib/ephy-prefs.h',
   output: 'org.gnome.Epiphany.enums.xml',
   install: true,
   install_dir: join_paths(datadir, 'glib-2.0', 'schemas'),
   capture: true,
-  command: ['glib-mkenums',
+  command: [find_program('glib-mkenums'),
     '--comments', '<!-- @comment@ -->',
     '--fhead', '<schemalist>',
     '--vhead', '  <@type@ id="org.gnome.Epiphany.@EnumName@">',
@@ -36,6 +45,19 @@ custom_target('gsettings-enums',
     '@INPUT@'
   ]
 )
+copy_gschema = custom_target('copy-gschema-to-builddir',
+  input: 'org.gnome.epiphany.gschema.xml',
+  output: 'renamed-hack.gschema.xml',
+  command: ['cp', '@INPUT@', '@OUTPUT@']
+)
+compile_schemas = custom_target('glib-compile-schemas',
+  output: 'gschemas.compiled',
+  install: false,
+  command: [find_program('glib-compile-schemas'),
+    meson.current_build_dir()
+  ],
+  depends: [generate_enums, copy_gschema]
+)
 install_data('org.gnome.epiphany.gschema.xml',
   install_dir: join_paths(datadir, 'glib-2.0', 'schemas')
 )
diff --git a/src/ephy-main.c b/src/ephy-main.c
index 3211950..9ce4e21 100644
--- a/src/ephy-main.c
+++ b/src/ephy-main.c
@@ -197,6 +197,10 @@ main (int   argc,
   EphyFileHelpersFlags flags;
   GDesktopAppInfo *desktop_info = NULL;
 
+#if DEVELOPER_MODE
+  g_setenv ("GSETTINGS_SCHEMA_DIR", BUILD_ROOT "/data", FALSE);
+#endif
+
   /* Initialize the i18n stuff */
   bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
diff --git a/src/meson.build b/src/meson.build
index 2d810a6..b0781a1 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -40,6 +40,7 @@ libephymain_sources = [
   'prefs-dialog.c',
   'synced-tabs-dialog.c',
   'window-commands.c',
+  compile_schemas,
   enums
 ]
 
diff --git a/tests/meson.build b/tests/meson.build
index 8ced8eb..89f903a 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,3 +1,10 @@
+envs = [
+  'G_TEST_SRCDIR=' + meson.current_source_dir(),
+  'G_TEST_BUILDDIR=' + meson.current_build_dir(),
+  'GSETTINGS_SCHEMA_DIR=' + join_paths(meson.build_root(), 'data'),
+  'GSETTINGS_BACKEND=memory',
+]
+
 if get_option('unit_tests')
   # FIXME: The tests that need ephy-test-utils are all disabled....
   #
@@ -14,71 +21,104 @@ if get_option('unit_tests')
     'ephy-completion-model-test.c',
     dependencies: ephymain_dep
   )
-  test('Completion model test', completion_model_test)
+  test('Completion model test',
+       completion_model_test,
+       env: envs
+  )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=778153
   # download_test = executable('test-ephy-download',
   #   'ephy-download-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('Download test', download_test)
+  # test('Download test',
+  #      download_test,
+  #      env: envs
+  # )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=773448
   # embed_shell_test = executable('test-ephy-embed-shell',
   #   'ephy-embed-shell-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('Embed shell test', embed_shell_test)
+  # test('Embed shell test',
+  #      embed_shell_test,
+  #      env: envs
+  # )
 
   embed_utils_test = executable('test-ephy-embed-utils',
     'ephy-embed-utils-test.c',
     dependencies: ephymain_dep
   )
-  test('Embed utils test', embed_utils_test)
+  test('Embed utils test',
+       embed_utils_test,
+       env: envs
+  )
 
   encodings_test = executable('test-ephy-encodings',
     'ephy-encodings-test.c',
     dependencies: ephymain_dep
   )
-  test('Encodings test', encodings_test)
+  test('Encodings test',
+       encodings_test,
+       env: envs
+  )
 
   # https://bugzilla.gnome.org/show_bug.cgi?id=786001
   # file_helpers_test = executable('test-ephy-file-helpers',
   #   'ephy-file-helpers-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('File helpers test', file_helpers_test)
+  # test('File helpers test',
+  #      file_helpers_test,
+  #      env: envs
+  # )
 
   gsb_service_test = executable('test-ephy-gsb-service',
     'ephy-gsb-service-test.c',
     dependencies: ephymain_dep
   )
-  test('GSB service test', gsb_service_test)
+  test('GSB service test',
+       gsb_service_test,
+       env: envs
+  )
 
   history_test = executable('test-ephy-history',
     'ephy-history-test.c',
     dependencies: ephymain_dep
   )
-  test('History test', history_test)
+  test('History test',
+       history_test,
+       env: envs
+  )
 
   location_entry_test = executable('test-location-entry',
     'ephy-location-entry-test.c',
     dependencies: ephymain_dep
   )
-  test('Location entry test', location_entry_test)
+  test('Location entry test',
+       location_entry_test,
+       env: envs
+  )
 
   migration_test = executable('test-ephy-migration',
     'ephy-migration-test.c',
     dependencies: ephymain_dep
   )
-  test('Migration test', migration_test)
+  test('Migration test',
+       migration_test,
+       env: envs
+  )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=707220
   # session_test = executable('test-ephy-session',
   #   'ephy-session-test.c',
   #   dependencies: ephytestutils_dep
   # )
-  # test('Session test', session_test)
+  # test('Session test',
+  #      session_test,
+  #      env: envs
+  # )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=693369
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=695703
@@ -87,44 +127,65 @@ if get_option('unit_tests')
   #   'ephy-shell-test.c',
   #   dependencies: ephytestutils_dep
   # )
-  # test('Shell test', shell_test)
+  # test('Shell test',
+  #      shell_test,
+  #      env: envs
+  # )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=762753
   # snapshot_service_test = executable('test-snapshot-service',
   #   'ephy-snapshot-service-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('Snapshot service test', snapshot_service_test)
+  # test('Snapshot service test',
+  #      snapshot_service_test,
+  #      env: envs
+  # )
 
   sqlite_test = executable('test-ephy-sqlite',
     'ephy-sqlite-test.c',
     dependencies: ephymain_dep
   )
-  test('SQLite test', sqlite_test)
+  test('SQLite test',
+       sqlite_test,
+       env: envs
+  )
 
   string_test = executable('test-ephy-string',
     'ephy-string-test.c',
     dependencies: ephymain_dep
   )
-  test('String test', string_test)
+  test('String test',
+       string_test,
+       env: envs
+  )
 
   uri_helpers_test = executable('test-ephy-uri-helpers',
     'ephy-uri-helpers-test.c',
     dependencies: ephymain_dep
   )
-  test('URI helpers test', uri_helpers_test)
+  test('URI helpers test',
+       uri_helpers_test,
+       env: envs,
+  )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=759256
   # web_app_utils_test = executable('test-ephy-web-app-utils',
   #   'ephy-web-app-utils-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('Web app utils test', web_app_utils_test)
+  # test('Web app utils test',
+  #      web_app_utils_test,
+  #      env: envs
+  # )
 
   # FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=780280
   # web_view_test = executable('test-ephy-web-view',
   #   'ephy-web-view-test.c',
   #   dependencies: ephymain_dep
   # )
-  # test('Web view test', web_view_test)
+  # test('Web view test',
+  #      web_view_test,
+  #      env: envs
+  # )
 endif