CustomTarget: Use get_outputs() instead of get_filename()

get_filename() made no sense for CustomTarget since it can have multiple
outputs. Also use get_outputs() for GeneratedList since it has the same
meaning and remove unused set_generated().

As a side-effect, we now install all the outputs of a CustomTarget.

4 files changed, 50 insertions, 50 deletions

diff --git a/mesonbuild/backend/backends.py b/mesonbuild/backend/backends.py
index 1d3fddd..1f16778 100644
--- a/mesonbuild/backend/backends.py
+++ b/mesonbuild/backend/backends.py
@@ -93,16 +93,16 @@ class Backend():
             src = src.fname
         raise RuntimeError('No specified compiler can handle file ' + src)
 
-    def get_target_filename(self, target):
-        assert(isinstance(target, (build.BuildTarget, build.CustomTarget)))
-        targetdir = self.get_target_dir(target)
-        fname = target.get_filename()
-        if isinstance(fname, list):
-            # FIXME FIXME FIXME: build.CustomTarget has multiple output files
-            # and get_filename() returns them all
-            fname = fname[0]
-        filename = os.path.join(targetdir, fname)
-        return filename
+    def get_target_filename(self, t):
+        if isinstance(t, build.CustomTarget):
+            if len(t.get_outputs()) != 1:
+                mlog.log(mlog.red('WARNING'), 'custom_target {!r} has more ' \
+                         'than one output! Using the first one.'.format(t.name))
+            filename = t.get_outputs()[0]
+        else:
+            assert(isinstance(t, build.BuildTarget))
+            filename = t.get_filename()
+        return os.path.join(self.get_target_dir(t), filename)
 
     def get_target_filename_abs(self, target):
         return os.path.join(self.environment.get_build_dir(), self.get_target_filename(target))
@@ -520,15 +520,17 @@ class Backend():
             outdir = '.'
         if absolute_paths:
             outdir = os.path.join(self.environment.get_build_dir(), outdir)
-        for i in target.sources:
+        for i in target.get_sources():
             if hasattr(i, 'held_object'):
                 i = i.held_object
             if isinstance(i, str):
                 fname = [os.path.join(self.build_to_src, target.subdir, i)]
-            elif isinstance(i, (build.BuildTarget, build.CustomTarget)):
+            elif isinstance(i, build.BuildTarget):
                 fname = [self.get_target_filename(i)]
+            elif isinstance(i, build.CustomTarget):
+                fname = [os.path.join(self.get_target_dir(i), p) for p in i.get_outputs()]
             elif isinstance(i, build.GeneratedList):
-                fname = [os.path.join(self.get_target_private_dir(target), p) for p in i.get_outfilelist()]
+                fname = [os.path.join(self.get_target_private_dir(target), p) for p in i.get_outputs()]
             else:
                 fname = [i.rel_to_builddir(self.build_to_src)]
             if absolute_paths:
@@ -542,7 +544,7 @@ class Backend():
             elif isinstance(i, build.CustomTarget):
                 # GIR scanner will attempt to execute this binary but
                 # it assumes that it is in path, so always give it a full path.
-                tmp = i.get_filename()[0]
+                tmp = i.get_outputs()[0]
                 i = os.path.join(self.get_target_dir(i), tmp)
             elif isinstance(i, mesonlib.File):
                 i = i.rel_to_builddir(self.build_to_src)
diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index f8c8109..00b1750 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -219,7 +219,7 @@ int dummy;
         for gensource in target.get_generated_sources():
             if isinstance(gensource, build.CustomTarget):
                 continue
-            for src in gensource.get_outfilelist():
+            for src in gensource.get_outputs():
                 if self.environment.is_header(src):
                     header_deps.append(os.path.join(self.get_target_private_dir(target), src))
         for dep in target.link_targets:
@@ -295,7 +295,7 @@ int dummy;
                         # in their source files.
                         header_deps.append(RawFilename(src))
             else:
-                for src in gensource.get_outfilelist():
+                for src in gensource.get_outputs():
                     generated_output_sources.append(src)
                     if self.environment.is_object(src):
                         obj_list.append(os.path.join(self.get_target_private_dir(target), src))
@@ -376,10 +376,9 @@ int dummy;
             # FIXME, should not grab element at zero but rather expand all.
             if isinstance(i, list):
                 i = i[0]
-            fname = i.get_filename()
-            if isinstance(fname, list):
-                fname = fname[0]
-            deps.append(os.path.join(self.get_target_dir(i), fname))
+            # Add a dependency on all the outputs of this target
+            for output in i.get_outputs():
+                deps.append(os.path.join(self.get_target_dir(i), output))
         return deps
 
     def generate_custom_target(self, target, outfile):
@@ -401,11 +400,9 @@ int dummy;
                 deps.append(os.path.join(self.build_to_src, i))
         elem.add_dep(deps)
         for d in target.extra_depends:
-            tmp = d.get_filename()
-            if not isinstance(tmp, list):
-                tmp = [tmp]
-            for fname in tmp:
-                elem.add_dep(os.path.join(self.get_target_dir(d), fname))
+            # Add a dependency on all the outputs of this target
+            for output in d.get_outputs():
+                elem.add_dep(os.path.join(self.get_target_dir(d), output))
         # If the target requires capturing stdout, then use the serialized
         # executable wrapper to capture that output and save it to a file.
         #
@@ -541,7 +538,8 @@ int dummy;
         should_strip = self.environment.coredata.get_builtin_option('strip')
         for t in self.build.get_targets().values():
             if t.should_install():
-                # Find the installation directory
+                # Find the installation directory. FIXME: Currently only one
+                # installation directory is supported for each target
                 outdir = t.get_custom_install_dir()
                 if outdir is not None:
                     pass
@@ -572,9 +570,14 @@ int dummy;
                         # stripped, and doesn't have an install_rpath
                         i = [self.get_target_debug_filename(t), outdir, [], False, '']
                         d.targets.append(i)
-                i = [self.get_target_filename(t), outdir, t.get_aliaslist(),\
-                    should_strip, t.install_rpath]
-                d.targets.append(i)
+                if isinstance(t, build.BuildTarget):
+                    i = [self.get_target_filename(t), outdir, t.get_aliaslist(),\
+                        should_strip, t.install_rpath]
+                    d.targets.append(i)
+                elif isinstance(t, build.CustomTarget):
+                    for output in t.get_outputs():
+                        f = os.path.join(self.get_target_dir(t), output)
+                        d.targets.append([f, outdir, [], False, None])
 
     def generate_custom_install_script(self, d):
         d.install_scripts = self.build.install_scripts
@@ -1013,7 +1016,7 @@ int dummy;
                     rel = os.path.join(self.get_target_dir(genlist), ifile)
                     all_srcs.append(rel)
             else:
-                for ifile in genlist.get_outfilelist():
+                for ifile in genlist.get_outputs():
                     rel = os.path.join(self.get_target_private_dir(target), ifile)
                     all_srcs.append(rel)
         srcs = []
@@ -1402,8 +1405,8 @@ rule FORTRAN_DEP_HACK
         generator = genlist.get_generator()
         exe = generator.get_exe()
         exe_arr = self.exe_object_to_cmd_array(exe)
-        infilelist = genlist.get_infilelist()
-        outfilelist = genlist.get_outfilelist()
+        infilelist = genlist.get_inputs()
+        outfilelist = genlist.get_outputs()
         base_args = generator.get_arglist()
         extra_dependencies = [os.path.join(self.build_to_src, i) for i in genlist.extra_depends]
         for i in range(len(infilelist)):
@@ -1941,7 +1944,9 @@ rule FORTRAN_DEP_HACK
             # are used by something else or are meant to be always built
             if isinstance(t, build.CustomTarget) and not (t.install or t.build_always):
                 continue
-            targetlist.append(self.get_target_filename(t))
+            # Add the first output of each target to the 'all' target so that
+            # they are all built
+            targetlist.append(os.path.join(self.get_target_dir(t), t.get_outputs()[0]))
 
         elem = NinjaBuildElement(self.all_outputs, 'all', 'phony', targetlist)
         elem.write(outfile)
diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index eca7473..f1d949a 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -102,7 +102,7 @@ class Vs2010Backend(backends.Backend):
         down = self.target_to_build_root(target)
         for genlist in target.get_generated_sources():
             if isinstance(genlist, build.CustomTarget):
-                for i in genlist.output:
+                for i in genlist.get_outputs():
                     # Path to the generated source from the current vcxproj dir via the build root
                     ipath = os.path.join(down, self.get_target_dir(genlist), i)
                     custom_target_output_files.append(ipath)
@@ -112,8 +112,8 @@ class Vs2010Backend(backends.Backend):
             else:
                 generator = genlist.get_generator()
                 exe = generator.get_exe()
-                infilelist = genlist.get_infilelist()
-                outfilelist = genlist.get_outfilelist()
+                infilelist = genlist.get_inputs()
+                outfilelist = genlist.get_outputs()
                 exe_arr = self.exe_object_to_cmd_array(exe)
                 base_args = generator.get_arglist()
                 for i in range(len(infilelist)):
diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 17cc89e..e500410 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -547,6 +547,9 @@ class BuildTarget():
     def get_filename(self):
         return self.filename
 
+    def get_outputs(self):
+        return [self.filename]
+
     def get_debug_filename(self):
         """
         The name of the file that contains debugging symbols for this target
@@ -650,12 +653,6 @@ by calling get_variable() on the subproject object.''')
                 raise InvalidArguments('Tried to mix cross built and native libraries in target {!r}'.format(self.name))
             self.link_targets.append(t)
 
-    def set_generated(self, genlist):
-        for g in genlist:
-            if not(isinstance(g, GeneratedList)):
-                raise InvalidArguments('Generated source argument is not the output of a generator.')
-            self.generated.append(g)
-
     def add_pch(self, language, pchlist):
         if len(pchlist) == 0:
             return
@@ -705,7 +702,7 @@ class Generator():
     def __init__(self, args, kwargs):
         if len(args) != 1:
             raise InvalidArguments('Generator requires one and only one positional argument')
-        
+
         exe = args[0]
         if hasattr(exe, 'held_object'):
             exe = exe.held_object
@@ -791,10 +788,10 @@ class GeneratedList():
         self.outfilelist += outfiles
         self.outmap[newfile] = outfiles
 
-    def get_infilelist(self):
+    def get_inputs(self):
         return self.infilelist
 
-    def get_outfilelist(self):
+    def get_outputs(self):
         return self.outfilelist
 
     def get_outputs_for(self, filename):
@@ -1085,7 +1082,6 @@ class CustomTarget:
         self.depfile = None
         self.process_kwargs(kwargs)
         self.extra_files = []
-        self.install_rpath = ''
         unknowns = []
         for k in kwargs:
             if k not in CustomTarget.known_kwargs:
@@ -1217,12 +1213,9 @@ class CustomTarget:
     def get_subdir(self):
         return self.subdir
 
-    def get_filename(self):
+    def get_outputs(self):
         return self.output
 
-    def get_aliaslist(self):
-        return []
-
     def get_sources(self):
         return self.sources