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OS-Programming/FAT-FileSystem/shell.cpp at main · tr3sp4ss3rexe/OS-Programming · GitHub
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#
include
<
iostream
>
#
include
<
sstream
>
#
include
<
string
>
#
include
<
vector
>
#
include
"
shell.h
"
#
include
"
fs.h
"
std::string commands_str[] = {
"
format
"
,
"
create
"
,
"
cat
"
,
"
ls
"
,
"
cp
"
,
"
mv
"
,
"
rm
"
,
"
append
"
,
"
mkdir
"
,
"
cd
"
,
"
pwd
"
,
"
chmod
"
,
"
help
"
,
"
quit
"
,
"
clear
"
};
Shell::Shell
()
{
//
std::cout << "Starting shell...\n";
}
Shell::~Shell
()
{
std::cout <<
"
Exiting shell...
\n
"
;
}
void
Shell::run
()
{
bool
running =
true
;
std::string line;
std::string str;
char
c;
std::vector<std::string> cmd_line;
std::string cmd, arg1, arg2;
int
ret_val =
0
;
while
(running) {
std::cout <<
"
C:
\\
>
"
;
std::getline
(std::cin, line);
std::stringstream
linestream
(line);
cmd_line.
clear
();
str.
clear
();
while
(linestream.
get
(c)) {
//
std::cout << "parsing cmd line: " << c << "\n";
if
(c !=
'
'
) {
str += c;
}
else
{
//
strip multiple blanks
if
(!str.
empty
()) {
cmd_line.
push_back
(str);
str.
clear
();
}
}
}
if
(!str.
empty
())
cmd_line.
push_back
(str);
if
(line.
empty
())
cmd =
"
"
;
else
cmd = cmd_line[
0
];
if
(
DEBUG
) {
std::cout <<
"
Line:
"
<< line << std::endl;
std::cout <<
"
cmd:
"
<< cmd << std::endl;
for
(
unsigned
i =
0
; i < cmd_line.
size
(); ++i)
std::cout <<
"
cmd/arg:
"
<< cmd_line[i] <<
"
\n
"
;
}
if
(cmd ==
"
format
"
) {
if
(cmd_line.
size
() !=
1
) {
std::cout <<
"
Usage: format
\n
"
;
continue
;
}
//
check return value so everything is ok
ret_val = filesystem.
format
();
if
(ret_val) {
std::cout <<
"
Error: format failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
create
"
) {
if
(cmd_line.
size
() !=
2
) {
std::cout <<
"
Usage: create <file>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
//
std::cout << "Enter data. Empty line to end.\n";
//
check return value so everything is ok
ret_val = filesystem.
create
(arg1);
if
(ret_val) {
std::cout <<
"
Error: create
"
<< arg1;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
cat
"
) {
if
(cmd_line.
size
() !=
2
) {
std::cout <<
"
Usage: cat <file>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
//
check return value so everything is ok
ret_val = filesystem.
cat
(arg1);
if
(ret_val) {
std::cout <<
"
Error: cat
"
<< arg1;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
ls
"
) {
if
(cmd_line.
size
() !=
1
) {
std::cout <<
"
Usage: ls
\n
"
;
continue
;
}
//
check return value so everything is ok
ret_val = filesystem.
ls
();
if
(ret_val) {
std::cout <<
"
Error: ls failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
cp
"
) {
if
(cmd_line.
size
() !=
3
) {
std::cout <<
"
Usage: <oldfile> <newfile>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
arg2 = cmd_line[
2
];
//
check return value so everything is ok
ret_val = filesystem.
cp
(arg1, arg2);
if
(ret_val) {
std::cout <<
"
Error: cp
"
<< arg1 <<
"
"
<< arg2;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
mv
"
) {
if
(cmd_line.
size
() !=
3
) {
std::cout <<
"
Usage: mv <sourcepath> <destpath>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
arg2 = cmd_line[
2
];
//
check return value so everything is ok
ret_val = filesystem.
mv
(arg1, arg2);
if
(ret_val) {
std::cout <<
"
Error: mv
"
<< arg1 <<
"
"
<< arg2;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
rm
"
) {
if
(cmd_line.
size
() !=
2
) {
std::cout <<
"
Usage: rm <file>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
//
check return value so everything is ok
ret_val = filesystem.
rm
(arg1);
if
(ret_val) {
std::cout <<
"
Error: rm
"
<< arg1;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
append
"
) {
if
(cmd_line.
size
() !=
3
) {
std::cout <<
"
Usage: append <filepath1> <filepath2>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
arg2 = cmd_line[
2
];
//
check return value so everything is ok
ret_val = filesystem.
append
(arg1, arg2);
if
(ret_val) {
std::cout <<
"
Error: append
"
<< arg1 <<
"
"
<< arg2;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
mkdir
"
) {
if
(cmd_line.
size
() !=
2
) {
std::cout <<
"
Usage: mkdir <dirpath>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
//
check return value so everything is ok
ret_val = filesystem.
mkdir
(arg1);
if
(ret_val) {
std::cout <<
"
Error: mkdir
"
<< arg1;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
cd
"
) {
if
(cmd_line.
size
() !=
2
) {
std::cout <<
"
Usage: cd <dirpath>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
//
check return value so everything is ok
ret_val = filesystem.
cd
(arg1);
if
(ret_val) {
std::cout <<
"
Error: cd
"
<< arg1;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
pwd
"
) {
if
(cmd_line.
size
() !=
1
) {
std::cout <<
"
Usage: pwd
\n
"
;
continue
;
}
//
check return value so everything is ok
ret_val = filesystem.
pwd
();
if
(ret_val) {
std::cout <<
"
Error: pwd failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
chmod
"
) {
if
(cmd_line.
size
() !=
3
) {
std::cout <<
"
Usage: chmod <accessrights> <filepath>
\n
"
;
continue
;
}
arg1 = cmd_line[
1
];
arg2 = cmd_line[
2
];
//
check return value so everything is ok
ret_val = filesystem.
chmod
(arg1, arg2);
if
(ret_val) {
std::cout <<
"
Error: chmod
"
<< arg1 <<
"
"
<< arg2;
std::cout <<
"
failed, error code
"
<< ret_val << std::endl;
}
}
else
if
(cmd ==
"
clear
"
) {
system
(
"
clear
"
);
}
else
if
(cmd ==
"
quit
"
)
running =
false
;
else
if
(cmd ==
"
help
"
) {
std::cout <<
"
Available commands:
\n
"
;
std::cout <<
"
format, create, cat, ls, cp, mv, rm, append, mkdir, cd, pwd, chmod, help, clear, quit
\n
"
;
}
else
if
(cmd ==
"
"
) {
;
//
do nothing
}
else
{
std::cout <<
"
Available commands:
\n
"
;
std::cout <<
"
format, create, cat, ls, cp, mv, rm, append, mkdir, cd, pwd, chmod, help, clear, quit
\n
"
;
}
}
}
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