intra to gitea

src/builtins/export.c

@@ -0,0 +1,126 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   export.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tordner <[email protected]>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/04/23 11:54:38 by lfirmin           #+#    #+#             */
+/*   Updated: 2025/06/01 21:30:55 by tordner          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+
+int	update_env_var(char **env, char *var)
+{
+	int		i;
+	char	*equal_sign;
+	int		var_name_len;
+
+	equal_sign = ft_strchr(var, '=');
+	if (!equal_sign)
+		return (0);
+	var_name_len = equal_sign - var;
+	i = 0;
+	while (env[i])
+	{
+		if (ft_strncmp(env[i], var, var_name_len) == 0
+			&& (env[i][var_name_len] == '=' || env[i][var_name_len] == '\0'))
+		{
+			free(env[i]);
+			env[i] = ft_strdup(var);
+			if (!env[i])
+				return (-1);
+			return (1);
+		}
+		i++;
+	}
+	return (0);
+}
+
+int	handle_export_validation(char *arg)
+{
+	int	validity;
+
+	validity = is_valid_identifier(arg);
+	if (validity <= 0)
+	{
+		ft_putstr_fd("export: '", 2);
+		ft_putstr_fd(arg, 2);
+		if (validity == -1)
+		{
+			ft_putstr_fd("': option invalide\n", 2);
+			return (2);
+		}
+		else
+			ft_putstr_fd("': not a valid identifier\n", 2);
+		return (1);
+	}
+	return (0);
+}
+
+int	process_single_export_arg(t_shell *shell, char *arg)
+{
+	int	validation_result;
+	int	status;
+
+	validation_result = handle_export_validation(arg);
+	if (validation_result > 0)
+	{
+		if (validation_result == 2)
+			return (2);
+		return (1);
+	}
+	if (ft_strchr(arg, '='))
+	{
+		status = handle_env_var(shell, arg);
+		if (status != 0)
+			return (status);
+	}
+	return (0);
+}
+
+int	process_export_args(t_shell *shell, char **args, int i)
+{
+	int	ret;
+	int	status;
+	int	success;
+
+	ret = 1;
+	success = 0;
+	while (args[i])
+	{
+		status = process_single_export_arg(shell, args[i]);
+		if (status == 2)
+			return (2);
+		if (status == 1)
+		{
+			i++;
+			continue ;
+		}
+		if (status == 0)
+			success = 1;
+		i++;
+	}
+	if (success)
+		ret = 0;
+	return (ret);
+}
+
+int	ft_export(t_shell *shell, t_cmd *cmd)
+{
+	int	i;
+
+	if (!cmd->args[1])
+	{
+		i = 0;
+		while (shell->env[i])
+		{
+			printf("declare -x %s\n", shell->env[i]);
+			i++;
+		}
+		return (0);
+	}
+	return (process_export_args(shell, cmd->args, 1));
+}