Add 'install_mode' to all installable targets

This makes it possible to customize permissions of all installable
targets, such as executable(), libraries, man pages, header files and
custom or generated targets.

This is useful, for instance, to install setuid/setgid binaries, which
was hard to accomplish without access to this attribute.

1 files changed, 11 insertions, 0 deletions

diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 0bcb98f..1e7f5fe 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -64,6 +64,7 @@ buildtarget_kwargs = set([
     'install',
     'install_rpath',
     'install_dir',
+    'install_mode',
     'name_prefix',
     'name_suffix',
     'native',
@@ -668,6 +669,9 @@ class BuildTarget(Target):
     def get_custom_install_dir(self):
         return self.install_dir
 
+    def get_custom_install_mode(self):
+        return self.install_mode
+
     def process_kwargs(self, kwargs, environment):
         super().process_kwargs(kwargs)
         self.copy_kwargs(kwargs)
@@ -745,6 +749,7 @@ This will become a hard error in a future Meson release.''')
         # the list index of that item will not be installed
         self.install_dir = typeslistify(kwargs.get('install_dir', [None]),
                                         (str, bool))
+        self.install_mode = kwargs.get('install_mode', None)
         main_class = kwargs.get('main_class', '')
         if not isinstance(main_class, str):
             raise InvalidArguments('Main class must be a string')
@@ -1626,6 +1631,7 @@ class CustomTarget(Target):
         'capture',
         'install',
         'install_dir',
+        'install_mode',
         'build_always',
         'depends',
         'depend_files',
@@ -1774,9 +1780,11 @@ class CustomTarget(Target):
                 # If an item in this list is False, the output corresponding to
                 # the list index of that item will not be installed
                 self.install_dir = typeslistify(kwargs['install_dir'], (str, bool))
+                self.install_mode = kwargs.get('install_mode', None)
         else:
             self.install = False
             self.install_dir = [None]
+            self.install_mode = None
         self.build_always = kwargs.get('build_always', False)
         if not isinstance(self.build_always, bool):
             raise InvalidArguments('Argument build_always must be a boolean.')
@@ -1803,6 +1811,9 @@ class CustomTarget(Target):
     def get_custom_install_dir(self):
         return self.install_dir
 
+    def get_custom_install_mode(self):
+        return self.install_mode
+
     def get_outputs(self):
         return self.outputs