[PATCH v2 02/44] ruby: add support for internal ruby programs

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Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
 Makefile |  9 +++++++++
 ruby.c   | 19 ++++++++++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 2fdee15..27e61c0 100644
--- a/Makefile
+++ b/Makefile
@@ -429,6 +429,7 @@ BASIC_LDFLAGS =
 # Guard against environment variables
 BUILTIN_OBJS =
 BUILT_INS =
+RUBY_PROGRAMS =
 COMPAT_CFLAGS =
 COMPAT_OBJS =
 XDIFF_OBJS =
@@ -493,6 +494,8 @@ SCRIPT_PYTHON += git-p4.py
 
 SCRIPT_RUBY += git-rb-setup.rb
 
+PROGRAMS += $(RUBY_PROGRAMS)
+
 NO_INSTALL += git-remote-testgit
 NO_INSTALL += git-remote-testpy
 
@@ -1754,6 +1757,12 @@ $(BUILT_INS): git$X
 	ln -s $< $@ 2>/dev/null || \
 	cp $< $@
 
+$(RUBY_PROGRAMS): git-ruby$X
+	$(QUIET_BUILT_IN)$(RM) $@ && \
+	ln $< $@ 2>/dev/null || \
+	ln -s $< $@ 2>/dev/null || \
+	cp $< $@
+
 common-cmds.h: ./generate-cmdlist.sh command-list.txt
 
 common-cmds.h: $(wildcard Documentation/git-*.txt)
diff --git a/ruby.c b/ruby.c
index ee6a0e7..339e376 100644
--- a/ruby.c
+++ b/ruby.c
@@ -52,5 +52,22 @@ static int run_ruby_command(const char *cmd, int argc, const char **argv)
 
 int main(int argc, const char **argv)
 {
-	return run_ruby_command(argv[1], argc, argv);
+	if (!strcmp(argv[0], "git-ruby")) {
+		return run_ruby_command(argv[1], argc, argv);
+	} else {
+		const char *cmd = argv[0];
+		static char buf[PATH_MAX + 1];
+		const char *args[argc + 1];
+		int i;
+
+		snprintf(buf, PATH_MAX, "%s/%s.rb",
+				git_exec_path(), basename((char *)cmd));
+
+		args[0] = "git";
+		args[1] = buf;
+		for (i = 0; i < argc - 1; i++)
+			args[i + 2] = (char *)argv[i + 1];
+
+		return run_ruby_command(cmd, argc + 1, args);
+	}
 }
-- 
1.8.4-fc

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