From 6abf3db13ef2f2cce5a238e40c497a56d5e9b7a9 Mon Sep 17 00:00:00 2001
From: ridiculousfish <corydoras@ridiculousfish.com>
Date: Mon, 2 Jan 2012 17:02:30 -0800
Subject: [PATCH] Added internalize_scripts.py in preparation for ending
 reliance on "standard" scripts in /usr/local/share

---
 Makefile.cpp           | 15 ++++++-
 internalize_scripts.py | 92 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 2 deletions(-)
 create mode 100755 internalize_scripts.py

diff --git a/Makefile.cpp b/Makefile.cpp
index 451ceb548..c3c2a7211 100644
--- a/Makefile.cpp
+++ b/Makefile.cpp
@@ -86,7 +86,6 @@ HAVE_GETTEXT=0
 
 COMMON_FILES := util.cpp halloc.cpp halloc_util.cpp fallback.cpp
 
-
 #
 # All objects that the system needs to build fish, except fish.o
 #
@@ -96,7 +95,7 @@ FISH_OBJS := function.o builtin.o complete.o env.o exec.o expand.o		\
 	tokenizer.o wildcard.o wgetopt.o wutil.o input.o output.o intern.o	\
 	env_universal.o env_universal_common.o input_common.o event.o		\
 	signal.o io.o parse_util.o common.o screen.o path.o					\
-	parser_keywords.o iothread.o
+	parser_keywords.o iothread.o builtin_scripts.o
 
 FISH_INDENT_OBJS := fish_indent.o print_help.o common.o	\
 parser_keywords.o wutil.o tokenizer.o
@@ -159,6 +158,17 @@ HDR_FILES_SRC := doc_src/index.hdr.in doc_src/commands.hdr.in doc_src/design.hdr
 
 HDR_FILES := $(subst .hdr.in,.hdr,$(HDR_FILES_SRC))
 
+#
+# Internalized scripts
+#
+
+GENERATED_INTERN_SCRIPT_FILES := builtin_scripts.h builtin_scripts.cpp
+
+# Use a pattern rule so that Make knows to only issue one invocation
+# per http://www.gnu.org/software/make/manual/make.html#Pattern-Intro
+builtin%scripts.h builtin%scripts.cpp: internalize_scripts.py
+	./internalize_scripts.py share/functions/*.fish
+
 #
 # Files containing documentation for external commands. 
 #
@@ -876,6 +886,7 @@ distclean: clean
 
 clean:
 	rm -f *.o doc.h doc.tmp doc_src/*.doxygen doc_src/*.cpp doc_src/*.o doc_src/commands.hdr
+	rm -f $(GENERATED_INTERN_SCRIPT_FILES)
 	rm -f tests/tmp.err tests/tmp.out tests/tmp.status tests/foo.txt
 	rm -f $(PROGRAMS) fish_tests tokenizer_test key_reader 
 	rm -f share/config.fish etc/config.fish doc_src/index.hdr doc_src/commands.hdr
diff --git a/internalize_scripts.py b/internalize_scripts.py
new file mode 100755
index 000000000..8b447aa05
--- /dev/null
+++ b/internalize_scripts.py
@@ -0,0 +1,92 @@
+#!/usr/bin/python
+
+import string, sys, os.path
+
+escapes = {}
+escapes['\a'] = r'\a'
+escapes['\b'] = r'\b'
+escapes['\f'] = r'\f'
+escapes['\n'] = r'\n'
+escapes['\r'] = r'\r'
+#escapes['\t'] = r'\t'
+# Let's replace tabs with four spaces
+# so the text looks nicely indented in the C source
+escapes['\t'] = r'    '
+escapes['\v'] = r'\v'
+# escapes['\''] = r'\''
+escapes['\"'] = r'\"'
+escapes['\\'] = r'\\'
+
+def escape(c):
+	if c in escapes:
+		return escapes[c]
+	elif c not in string.printable:
+		return "\\x%x" % ord(c)
+	else:
+		return c
+
+def stringize(line):
+	newline = '"'
+	for c in line:
+		newline += escape(c)
+	newline += '"'
+	return newline
+
+class cfunc:
+	def __init__(self, name, lines):
+		self.name = name
+		self.lines = lines
+		
+	def cdef(self):
+		result = ""
+		result += "static const char * const %s = \n\t" % self.cfunc_name()
+		result += '\n\t'.join(self.lines)
+		result += ';\n'
+		return result
+
+	def cfunc_name(self):
+		munged_name = string.replace(self.name, '-', '_')
+		return "function_%s" % munged_name
+
+funcs = []
+for file in sys.argv[1:]:
+	fd = open(file, 'r')
+	newlines = []
+	for line in fd:
+		newlines.append(stringize(line))
+	fd.close()
+	name = os.path.basename(file)
+	name, ext = os.path.splitext(name)
+	funcs.append(cfunc(name, newlines))
+
+# Sort our functions by name
+funcs.sort(key=cfunc.cfunc_name) 
+
+# Output our header
+fd = open('builtin_scripts.h', 'w')
+fd.write('/* This file is generated by internalize_scripts.py */\n\n')
+fd.write("""struct builtin_script_t {
+	const char *name;
+	const char *def;
+};""")
+
+fd.write('\n')
+fd.write('\n')
+fd.write('extern const struct builtin_script_t builtin_scripts[%d];\n' % len(funcs))
+fd.write('\n')
+fd.close()
+
+# Output the function definitions
+fd = open('builtin_scripts.cpp', 'w')
+fd.write('/* This file is generated by internalize_scripts.py */\n\n')
+fd.write('#include "builtin_scripts.h"\n\n')
+for func in funcs:
+	fd.write(func.cdef())
+	fd.write('\n')
+
+# Output the refs
+func_refs = ["{%s, %s}" % (stringize(func.name), func.cfunc_name()) for func in funcs]
+fd.write('const struct builtin_script_t builtin_scripts[%d] =\n' % len(funcs))
+fd.write('{\n\t')
+fd.write(',\n\t'.join(func_refs))
+fd.write('\n};\n')