From 48de0cd029b52f64f76345b6e1fdf3cde5c58de3 Mon Sep 17 00:00:00 2001
From: Alexis211 <alexis211@gmail.com>
Date: Fri, 23 Oct 2009 19:40:08 +0200
Subject: More work on syscalls and shell

---
 Source/Applications/Shell/Makefile        |  3 +-
 Source/Applications/Shell/Shell-fs.ns.cpp | 52 +++++++++++++++++++++++++++++++
 Source/Applications/Shell/Shell.ns.cpp    | 32 +++++++++++++++++--
 Source/Applications/Shell/Shell.ns.h      |  3 ++
 4 files changed, 86 insertions(+), 4 deletions(-)
 create mode 100644 Source/Applications/Shell/Shell-fs.ns.cpp

(limited to 'Source/Applications/Shell')

diff --git a/Source/Applications/Shell/Makefile b/Source/Applications/Shell/Makefile
index f93d80d..0eeb620 100644
--- a/Source/Applications/Shell/Makefile
+++ b/Source/Applications/Shell/Makefile
@@ -7,7 +7,8 @@ LD = ld
 LDFLAGS = -T ../../Library/Link.ld
 
 Objects = main.o \
-		  Shell.ns.o
+		  Shell.ns.o \
+		  Shell-fs.ns.o
 OutFile = Shell
 
 all: $(OutFile)
diff --git a/Source/Applications/Shell/Shell-fs.ns.cpp b/Source/Applications/Shell/Shell-fs.ns.cpp
new file mode 100644
index 0000000..33bc94e
--- /dev/null
+++ b/Source/Applications/Shell/Shell-fs.ns.cpp
@@ -0,0 +1,52 @@
+#include "Shell.ns.h"
+
+namespace Shell {
+
+void ls(Vector<String>& args) {
+	FSNode d = cwd;
+	if (args.size() == 2) {
+		FSNode n = cwd.findFrom(args[1]);
+		d = FSNode(0);
+		if (!n.valid())
+			outvt << "No such directory : " << args[1] << "\n";
+		else if (n.type() != NT_DIRECTORY)
+			outvt << "Not a directory : " << args[1] << "\n";
+		else
+			d = n;
+	}	
+	if (d.valid()) outvt << "Contents of directory " << d.path() << " :\n";
+	for (u32int i = 0; i < d.getLength(); i++) {
+		FSNode n = d.getChild(i);
+		if (n.type() == NT_FILE) {
+			outvt << " - FILE\t" << n.getName();
+			outvt.setCsrCol(30);
+			outvt << (s32int)n.getLength() << " bytes.\n";
+		} else if (n.type() == NT_DIRECTORY) {
+			outvt << " - DIR\t" << n.getName() << "/";
+			outvt.setCsrCol(30);
+			outvt << (s32int)n.getLength() << " items.\n";
+		}
+	}
+}
+
+void cd(Vector<String>& args) {
+	if (args.size() != 2) {
+		outvt << "Invalid argument count.\n";
+	} else {
+		FSNode ncwd = cwd.findFrom(args[1]);
+		if (!ncwd.valid()) {
+			outvt << "No such directory : " << args[1] << "\n";
+		} else if (ncwd.type() == NT_DIRECTORY) {
+			ncwd.setCwd();
+			cwd = ncwd;
+		} else {
+			outvt << "Not a directory.\n";
+		}
+	}
+}
+
+void pwd(Vector<String>& args) {
+	outvt << "Current directory : " << cwd.path() << "\n";
+}
+
+}
diff --git a/Source/Applications/Shell/Shell.ns.cpp b/Source/Applications/Shell/Shell.ns.cpp
index d34f516..4afc6b7 100644
--- a/Source/Applications/Shell/Shell.ns.cpp
+++ b/Source/Applications/Shell/Shell.ns.cpp
@@ -3,12 +3,23 @@
 
 namespace Shell {
 
-FSNode node(0);
+FSNode cwd(0);
+
 
 u32int run() {
-	node = FSNode::getRoot();
+	struct {	//Command list
+		String name;
+		void (*cmd)(Vector<String>&);
+	} commands[] = {
+		{"ls",		ls},
+		{"cd",		cd},
+		{"pwd",		pwd},
+		{"",		0}
+	};
+
+	cwd = FSNode::getCwd();
 	while (1) {
-		outvt << node.getName() << " : ";
+		outvt << "{" << cwd.getName() << "}: ";
 		String s = invt.readLine();
 		while (s[0] == WChar(" ") or s[0] == WChar("\t")) {
 			s = s.substr(1, s.size() - 1);
@@ -44,6 +55,21 @@ u32int run() {
 			Sys::reboot();
 			outvt << "Something went wrong.\n";
 		} else {
+			u32int i = 0;
+			bool found = false;
+			while (!commands[i].name.empty()) {
+				if (commands[i].name == cmd[0]) {
+					found = true;
+					if (commands[i].cmd == 0) {
+						outvt << "Not implemented yet.\n";
+					} else {
+						commands[i].cmd(cmd);
+					}
+					break;
+				}
+				i++;
+			}
+			if (!found) outvt << "Unknown command : " << cmd[0] << "\n";
 		}
 	}
 }
diff --git a/Source/Applications/Shell/Shell.ns.h b/Source/Applications/Shell/Shell.ns.h
index 3be1e0d..8d7067a 100644
--- a/Source/Applications/Shell/Shell.ns.h
+++ b/Source/Applications/Shell/Shell.ns.h
@@ -7,4 +7,7 @@ namespace Shell {
 
 	extern FSNode cwd;
 
+	extern void ls(Vector<String>& args);
+	extern void cd(Vector<String>& args);
+	extern void pwd(Vector<String>& args);
 }
-- 
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