Refactor `mk_install_tactic_cpp()` so that it is usable externally via a new

function ``mk_install_tactic_cpp_internal()`` which is called by a
new ``mk_install_tactic_cpp.py`` script. This will allow other build systems to
generate the ``install_tactic.cpp`` files.

scripts/mk_install_tactic_cpp.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python
+"""
+Determines the available tactics
+in header files in the list of source directions
+and generates a ``install_tactic.cpp`` file in
+the destination directory that defines a function
+``void install_tactics(tactic_manager& ctx)``.
+"""
+import mk_util
+import argparse
+import logging
+import os
+import sys
+
+def check_dir(path):
+  if not os.path.exists(path):
+    logging.error('"{}" does not exist'.format(path))
+    return 1
+
+  if not os.path.isdir(path):
+    logging.error('"{}" is not a directory'.format(path))
+    return 1
+
+  return 0
+
+
+def main(args):
+  logging.basicConfig(level=logging.INFO)
+  parser = argparse.ArgumentParser(description=__doc__)
+  parser.add_argument("destination_dir", help="destination directory")
+  parser.add_argument("source_dirs", nargs="+",
+                      help="One or more source directories to search")
+  pargs = parser.parse_args(args)
+
+  if check_dir(pargs.destination_dir) != 0:
+    return 1
+
+  for source_dir in pargs.source_dirs:
+    if check_dir(source_dir) != 0:
+      return 1
+
+  mk_util.mk_install_tactic_cpp_internal(pargs.source_dirs, pargs.destination_dir)
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))
+

scripts/mk_util.py

@@ -2677,6 +2677,13 @@ def ADD_PROBE(name, descr, cmd):
 # It installs all tactics in the given component (name) list cnames
 # The procedure looks for ADD_TACTIC commands in the .h files of these components.
 def mk_install_tactic_cpp(cnames, path):
+  component_src_dirs = []
+  for cname in cnames:
+    c = get_component(cname)
+    component_src_dirs.append(c.src_dir)
+  mk_install_tactic_cpp_internal(component_src_dirs, path)
+
+def mk_install_tactic_cpp_internal(component_src_dirs, path):
     global ADD_TACTIC_DATA, ADD_PROBE_DATA
     ADD_TACTIC_DATA = []
     ADD_PROBE_DATA = []
@@ -2688,12 +2695,11 @@ def mk_install_tactic_cpp(cnames, path):
     fout.write('#include"cmd_context.h"\n')
     tactic_pat   = re.compile('[ \t]*ADD_TACTIC\(.*\)')
     probe_pat    = re.compile('[ \t]*ADD_PROBE\(.*\)')
-    for cname in cnames:
-        c = get_component(cname)
-        h_files = filter(lambda f: f.endswith('.h') or f.endswith('.hpp'), os.listdir(c.src_dir))
+    for component_src_dir in component_src_dirs:
+        h_files = filter(lambda f: f.endswith('.h') or f.endswith('.hpp'), os.listdir(component_src_dir))
         for h_file in h_files:
             added_include = False
-            fin = open(os.path.join(c.src_dir, h_file), 'r')
+            fin = open(os.path.join(component_src_dir, h_file), 'r')
             for line in fin:
                 if tactic_pat.match(line):
                     if not added_include: