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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* b_cd.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdint.h>
#include <unistd.h>
#include <limits.h>
#include "b_export_next.h"
#include "f_fail.h"
#include "s_destroy.h"
#include "s_struct.h"
#include "u_utils.h"
#include "u_vars.h"
#include "u_vars_next.h"
static void
set_path(char **path,
char *args[],
t_msh *msh)
{
if (!(*path = ft_strdup(*args)))
{
s_destroy(msh);
f_fail_alloc(msh);
}
if (!ft_strncmp("~/", *path, 2) || !ft_strncmp("~", *path, 2))
{
if (!(*path = ft_strsubst(*path,
"~", u_get_var_value("$HOME", msh))))
{
s_destroy(msh);
f_fail_alloc(msh);
}
}
}
static void
b_set_oldpwd(t_msh *msh)
{
char *pwd;
char *tmp;
char fmt[PATH_MAX];
if ((pwd = u_get_var_value("$PWD", msh)) == NULL)
{
if ((pwd = ft_strdup(msh->cwd)) == NULL)
f_fail_alloc_and_destroy(msh);
}
if ((tmp = u_get_var_value("$OLDPWD", msh)) == NULL)
{
ft_sprintf(fmt, "%s=%s", "OLDPWD", pwd);
b_export_with_equals(fmt, msh);
}
else
{
u_subst_var_value("$OLDPWD", pwd, msh);
ft_memdel((void*)&pwd);
ft_memdel((void*)&tmp);
}
}
static void
b_fill_repath(char *repath[],
char *splited[])
{
size_t i;
size_t j;
i = 0;
while (splited[i] != NULL)
{
if (ft_strncmp(splited[i], "..", 3) == 0)
{
j = ft_strlen(*repath);
while (*repath[j] != '/')
j--;
*repath[j] = '\0';
}
i++;
}
}
static void
b_upgrade_pwd(const char path[], t_msh *msh)
{
char **splited;
char repath[262144];
t_bool slash_first;
b_set_oldpwd(msh);
slash_first = FALSE;
if (path[0] == '/')
slash_first = TRUE;
if (slash_first == TRUE)
ft_memcpy(repath, "/", 2);
else
{
/* msh->cwd; */
}
if ((splited = ft_split(path, '/')) == NULL)
f_fail_alloc_and_destroy(msh);
b_fill_repath((char**)&repath, splited);
ft_delwords(splited);
u_subst_var_value("$PWD", repath, msh);
ft_printf("[%s]\n", repath);
}
/* TODO: fix export OLDPWDQWE= */
static void
b_old_upgrade_pwd(const char path[], t_msh *msh)
{
char **splited;
char *rtmp;
char repath[131072];
size_t i;
size_t j;
if (path[0] == '/')
{
u_subst_var_value("$PWD", path, msh);
/* TODO: /home///////////////////////////////////jozan////////////// */
return ;
}
rtmp = u_get_var_value("$PWD", msh);
ft_memcpy(repath, rtmp, ft_strlen(rtmp) + 1);
ft_memdel((void*)&rtmp);
splited = ft_split(path, '/');
i = 0;
while (splited[i] != '\0')
{
ft_printf("{%s}\n{%s}\n", path, path + i);
if (splited[i][0] == '.' && splited[i][1] == '.')
{
j = ft_strlen(repath);
ft_printf("[%s]\n", repath);
while (repath[j] != '/')
j--;
repath[j] = '\0';
}
else
{
j = ft_strlen(repath) + 1;
repath[j - 1] = '/';
ft_strlcpy(repath + j, splited[i], ft_strlen(splited[i]) + 1);
}
i++;
}
ft_delwords(splited);
u_subst_var_value("$PWD", repath, msh);
}
uint8_t
b_cd(char *args[],
t_msh *msh)
{
const uint64_t argc = u_builtins_get_argc((const char**)args);
char *path;
if (argc >= 2)
{
f_fail_too_many_args("cd", msh);
return (1);
}
else if (argc == 0)
{
if (!(path = u_get_var_value("$HOME", msh)))
return (1);
}
else
set_path(&path, args, msh);
if (chdir(path) != 0)
{
f_fail_chd("cd", path, msh);
ft_memdel((void*)&path);
return (1);
}
b_upgrade_pwd(path, msh);
ft_memdel((void*)&path);
return (0);
}
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