Cmd implicit constructor

run_tests.sh

@@ -2,10 +2,11 @@
 set -e
 
 # Test cppipe functions
-OKs=$(test/functions_test.cppipe 2>/dev/null | grep OK | wc -l)
-if ! [ $OKs = 13 ]
+OKs=$(test/functions_test.cppipe | grep OK | wc -l)
+EXPECTED=14
+if ! [ $OKs = $EXPECTED ]
 then
-    echo "Functions test failed: EXPECTED 13 OKs, got $OKs"
+    echo "Functions test failed: EXPECTED $EXPECTED OKs, got $OKs"
     exit 1
 fi
 echo Functions test OK!

src/commands.hpp

@@ -18,11 +18,11 @@ class Cmd
 public:
 	/* all args must be const char* */
 	template<typename... Args>
-	explicit Cmd(Args... args)
-		: argv({args...})
-	{
-		argv.push_back(nullptr);
-	}
+	explicit Cmd(Args...);
+
+	/* Implicitly convert from { "command", "param" }
+	 * e.g: exec({ "cmd", "arg" }); */
+	Cmd(std::initializer_list<const char*> args);
 
 	/* Execute the command, if arguments are not given use stdin,out,err
 	   else use the given file desciptors. this can also be used
@@ -45,8 +45,9 @@ public:
 class PendingCmd
 {
 public:
+	PendingCmd(std::initializer_list<const char*> cmd_args);
 	/* Can be implicitly created from a command */
-	PendingCmd(const Cmd&, fd_t in=0, fd_t out=1, fd_t err=2);
+	PendingCmd(Cmd, fd_t in=0, fd_t out=1, fd_t err=2);
 	/* Execute the command on destruction */
 	~PendingCmd();
 
@@ -60,10 +61,10 @@ public:
 	/* Prevent a pending command from being executed on destruction */
 	void cancel();
 
-	const Cmd& cmd;
-	fd_t in, out, err;
+	Cmd cmd;
+	fd_t in=0, out=1, err=2;
 private:
-	bool execed_;
+	bool execed_ = false;
 
 	friend Proc detach(const PendingCmd&);
 	friend Proc detachRedirIn(const PendingCmd&);

src/commands.inl

@@ -28,6 +28,18 @@ namespace _cppipe
 	}
 }
 
+template<typename... Args>
+inline Cmd::Cmd(Args... args)
+	: Cmd({ args... })
+{
+}
+
+inline Cmd::Cmd(std::initializer_list<const char*> args)
+	: argv(args)
+{
+	argv.push_back(nullptr);
+}
+
 inline DeadProc Cmd::operator()(fd_t in, fd_t out, fd_t err) const
 {
 	Proc p = createProcess(argv.data(), in, out, err);
@@ -58,13 +70,18 @@ inline Cmd& Cmd::operator+=(const char* arg)
 	return *this;
 }
 
+inline PendingCmd::PendingCmd(std::initializer_list<const char*> cmd_args)
+	: cmd(cmd_args)
+	, in(0)
+	, out(1)
+	, err(2)
+{}
 
-inline PendingCmd::PendingCmd(const Cmd& origin, fd_t in, fd_t out, fd_t err)
-	: cmd(origin)
+inline PendingCmd::PendingCmd(Cmd origin, fd_t in, fd_t out, fd_t err)
+	: cmd(std::move(origin))
 	, in(in)
 	, out(out)
 	, err(err)
-	, execed_(false)
 {}
 
 inline PendingCmd::~PendingCmd()

test/functions_test.cppipe

@@ -25,7 +25,7 @@ int main(int argc, char* argv[])
 
 	string out1 = $(ll + "src" | grep + "inl" | grep + "child");
 	if(out1.find("childProcess.inl") != string::npos)
-		cout << "OK 0/12" << endl;
+		cout << "OK 0/13" << endl;
 
 	string out2 = $(echo + "abc" + "def");
 	// "abc def" = 7 chars, trailing newlines are stripped by $()
@@ -35,8 +35,8 @@ int main(int argc, char* argv[])
 		exit(1);
 	}
 
-	Cmd success("echo", "OK 1/12");
-	Cmd fail("mkdir", ".");
+	Cmd success("echo", "OK 1/13");
+	Cmd fail("false");
 	Cmd unexpected("echo", "FAILURE");
 	success &&
 	fail &&
@@ -47,34 +47,36 @@ int main(int argc, char* argv[])
 	// unexpected &&
 	// unexpected;
 
-	Cmd write_file("echo", "Existing ", " ", "file. OK 2/12");
+	Cmd write_file("echo", "Existing ", " ", "file. OK 2/13");
 
 	write_file > "file.txt";
 	grep + "Existing" < "file.txt";
 
-	echo + "Appended to file OK 3/12" >> "file.txt";
+	echo + "Appended to file OK 3/13" >> "file.txt";
 	grep + "Appended" < "file.txt" &&
 	rm + "file.txt" &&
 	fail ||
-	Cmd("echo", "OK 4/12");
+	Cmd("echo", "OK 4/13");
 
-	echo + "OK 5/12" &&
-	echo + "OK 6/12",
-	Cmd("echo", "OK 7/12");
+	echo + "OK 5/13" &&
+	echo + "OK 6/13",
+	Cmd("echo", "OK 7/13");
 
-	echo + "OK 8/12" &
-	echo + "OK 9/12" &&
-	echo + "OK 10/12";
+	echo + "OK 8/13" &
+	echo + "OK 9/13" &&
+	echo + "OK 10/13";
 
 	// wait for all detached
 	while(wait(nullptr) != -1);
 
 	Cmd run_OK = echo;
-	run_OK.append_args({ "OK 11/12" });
+	run_OK.append_args({ "OK 11/13" });
 	run( run_OK );
 
-	exec( echo + "OK 12/12" );
+	run({ "echo", "OK 12/13" });
+
+	exec({ "echo", "OK 13/13" });
 
 	// todo
-	// exec( echo + $(echo + "OK 11/12") );
+	// exec( echo + $(echo + "OK 11/13") );
 }

todo.txt

@@ -1,3 +1,4 @@
+fix debug
 example #!/usr/bin/cppipe
 description - advantages over manual compile
 man