Added shared library versioning.

interpreter.py

@@ -238,6 +238,9 @@ class BuildTarget(InterpreterObject):
         else:
             self.extra_args[language] = flags
 
+    def get_aliaslist(self):
+        return []
+
 class Executable(BuildTarget):
     def __init__(self, name, subdir, sources, environment):
         BuildTarget.__init__(self, name, subdir, sources)
@@ -258,10 +261,42 @@ class StaticLibrary(BuildTarget):
 class SharedLibrary(BuildTarget):
     def __init__(self, name, subdir, sources, environment):
         BuildTarget.__init__(self, name, subdir, sources)
-        prefix = environment.get_shared_lib_prefix()
-        suffix = environment.get_shared_lib_suffix()
-        self.filename = prefix + self.name + '.' + suffix
+        self.version = None
+        self.soversion = None
+        self.prefix = environment.get_shared_lib_prefix()
+        self.suffix = environment.get_shared_lib_suffix()
+        self.methods.update({'set_version' : self.set_version_method,
+                             'set_soversion' : self.set_soversion_method,
+                             })
+    
+    def get_shbase(self):
+        return self.prefix + self.name + '.' + self.suffix
+    def get_filename(self):
+        fname = self.get_shbase()
+        if self.version is None:
+            return fname
+        else:
+            return fname + '.' + self.version
 
+    def set_version_method(self, args):
+        v = args[0]
+        if not isinstance(v, str):
+            raise InvalidArguments('Shared library version is not a string.')
+        self.version = v
+
+    def set_soversion_method(self, args):
+        v = args[0]
+        if not isinstance(v, str):
+            raise InvalidArguments('Shared library soversion is not a string.')
+        self.soversion = v
+
+    def get_aliaslist(self):
+        aliases = []
+        if self.soversion is not None:
+            aliases.append(self.get_shbase() + '.' + self.soversion)
+        if self.version is not None:
+            aliases.append(self.get_shbase())
+        return aliases
 
 class Test(InterpreterObject):
     def __init__(self, name, exe):

shellgenerator.py

@@ -192,6 +192,7 @@ echo Run compile.sh before this or bad things will happen.
                     outdir = libdir
                 outfile.write('echo Installing "%s".\n' % name)
                 self.copy_file(outfile, self.get_target_filename(t), outdir)
+                self.generate_shlib_aliases(t, outdir, outfile)
 
     def generate_tests(self, outfile):
         for t in self.build.get_tests():
@@ -326,6 +327,14 @@ echo Run compile.sh before this or bad things will happen.
             quoted = shell_quote(commands)
             outfile.write('\necho Generating pch \\"%s\\".\n' % pch)
             outfile.write(' '.join(quoted) + ' || exit\n')
+    
+    def generate_shlib_aliases(self, target, outdir, outfile):
+        basename = target.get_filename()
+        aliases = target.get_aliaslist()
+        for alias in aliases:
+            aliasfile = os.path.join(outdir, alias)
+            cmd = ['ln', '-s', '-f', basename, aliasfile]
+            outfile.write(' '.join(shell_quote(cmd)) + '|| exit\n')
 
     def generate_target(self, target, outfile):
         name = target.get_basename()
@@ -340,6 +349,7 @@ echo Run compile.sh before this or bad things will happen.
         for src in target.get_sources():
             obj_list.append(self.generate_single_compile(target, outfile, src))
         self.generate_link(target, outfile, outname, obj_list)
+        self.generate_shlib_aliases(target, self.get_target_dir(target), outfile)
         self.processed_targets[name] = True
 
 if __name__ == '__main__':

test cases/27 library versions/builder.txt

@@ -0,0 +1,7 @@
+project('library versions', 'c')
+
+lib = shared_library('somelib', 'lib.c')
+lib.set_version('1.2.3')
+lib.set_soversion('0')
+
+lib.install()

test cases/27 library versions/lib.c

@@ -0,0 +1,3 @@
+int myFunc() {
+    return 55;
+}