From 8c64e2c6f66ac6624eae2d1caaf115e31e27061d Mon Sep 17 00:00:00 2001
From: Loic Deridder <lderidde@fu-r1-p1.s19.be>
Date: Fri, 17 Jan 2025 14:40:19 +0100
Subject: [PATCH] builtins

---
 includes/builtins.h  |  4 +++
 includes/minishell.h |  1 +
 srcs/builtins/cd.c   | 58 +++++++++++++++++++++++++++++++++++++++-----
 srcs/builtins/echo.c |  2 +-
 srcs/main.c          | 10 +++++---
 5 files changed, 65 insertions(+), 10 deletions(-)

diff --git a/includes/builtins.h b/includes/builtins.h
index a5ec0e5..479dd84 100644
--- a/includes/builtins.h
+++ b/includes/builtins.h
@@ -21,4 +21,8 @@ char	**builtin_export(char **arg, char **envp);
 
 //UTILS
 int	count_char(char *str);
+int	count_args(char **tab);
+int	extractenv(char *str, char **envp);
+char	*ft_getenv(char *str, char **envp);
+
 #endif
diff --git a/includes/minishell.h b/includes/minishell.h
index cddcee8..b70af5f 100644
--- a/includes/minishell.h
+++ b/includes/minishell.h
@@ -3,6 +3,7 @@
 
 # include <stdio.h>
 # include <readline/readline.h>
+# include <readline/history.h>
 # include <unistd.h> 
 # include <stdlib.h> 
 
diff --git a/srcs/builtins/cd.c b/srcs/builtins/cd.c
index b9945a5..073b1aa 100644
--- a/srcs/builtins/cd.c
+++ b/srcs/builtins/cd.c
@@ -1,5 +1,15 @@
 #include "../../includes/builtins.h"
 
+int	count_args(char **tab)
+{
+	int	i;
+
+	i = 0;
+	while (tab[i])
+		i++;
+	return (i);
+}
+
 char	**update_oldpwd(char **envp)
 {
 	char	**new_envp;
@@ -46,11 +56,50 @@ char	**update_pwd(char **envp)
 	return (new_envp);
 }
 
+int	check_path(char *str)
+{
+	if (access(str, F_OK | X_OK) == -1)
+	{
+		ft_put_s_fd(str, 2);
+		ft_put_s_fd(": ", 2);
+		perror("cd");
+		return (0);
+	}
+	return (1);
+}
+
+// void	expand_var(char *str, char **envp)
+// {
+// 	char	*new_arg;
+// 	char	*tmp;
+// 	int		i;
+// 	int 	j;
+//
+// 	i = -1;
+// 	while (str[++i])
+// 	{
+// 		if (str[i] == '$')
+// 		{
+// 			j = 0;
+// 			while (str[j] && str[j] != ' ')
+// 				j++;
+// 			if (j >= 1)
+// 		}
+// 	}
+// }
+
 char	**builtin_cd(char **arg, char **envp)
 {
-	/*
-	 * OLDPWD = getcwd()
-	 */
+	// char *path;
+
+	if (count_args(arg) >= 3)
+	{
+		ft_putendl_fd("cd: too many arguments", 2);
+		return (envp);
+	}
+	// path = expand_var(arg[1], envp);
+	if (!check_path(arg[1]))
+		return (envp);
 	envp = update_oldpwd(envp);
 	if (chdir(arg[1]) == -1)
 	{
@@ -58,8 +107,5 @@ char	**builtin_cd(char **arg, char **envp)
 		return (envp);
 	}
 	envp = update_pwd(envp);
-	/*
-	 * PWD = getcwd()
-	 */
 	return (envp);
 }
diff --git a/srcs/builtins/echo.c b/srcs/builtins/echo.c
index 0ae6458..4e32d94 100644
--- a/srcs/builtins/echo.c
+++ b/srcs/builtins/echo.c
@@ -41,7 +41,7 @@ char	*ft_getenv(char *str, char **envp)
 	return (&envp[j][len]);
 }
 
-static int	extractenv(char *str, char **envp)
+int	extractenv(char *str, char **envp)
 {
 	int		i;
 	char	*var;
diff --git a/srcs/main.c b/srcs/main.c
index 21cc003..7ac9576 100644
--- a/srcs/main.c
+++ b/srcs/main.c
@@ -4,6 +4,7 @@ char	*powerline(void)
 {
 	char	*pwd;
 	char	*tilt;
+	char	*input;
 
 	pwd = getcwd(NULL, 0);
 	if (ft_strncmp(pwd, "/home/", 6) == 0)
@@ -19,7 +20,10 @@ char	*powerline(void)
 ----------------------------------%s", POW5, RESET);
 	printf("\n%s   MMOAT %s%s%s%s%s %s%s%s ",
 		POW1, POW2, POW3, POW4, tilt, pwd, RESET, POW5, RESET);
-	return (readline(""));
+	input = readline("");
+	if (ft_strlen(input) > 0)
+		add_history(input);
+	return (input);
 }
 
 char	**ft_setnewenv(void)
@@ -58,9 +62,9 @@ int	main(int ac, char **av, char **envp)
 		if (ft_strncmp(input, "unset", 5) == 0)
 			builtin_unset(input, envp);
 		if (ft_strncmp(input, "cd", 2) == 0)
-			envp = builtin_cd(ft_split(input, ' '), envp);
+			envp = builtin_cd(ft_split(input, " "), envp);
 		if (ft_strncmp(input, "export", 6) == 0)
-			envp = builtin_export(ft_split(input, ' '), envp);
+			envp = builtin_export(ft_split(input, " "), envp);
 		free(input);
 	}
 	return (0);