“无法创建缓存目录/home/<user>/.composer/cache/repo/https---packagist.org/，或目录不可写。没有缓存继续进行”

Question

新手来了。

我试图在我的Ubuntu中安装MISP，遵循以下安装指南：INSTALL.ubuntu1804.txt

当涉及到这个指令时：

# Once done, install CakeResque along with its dependencies if you intend to use the built in background jobs:
cd /var/www/MISP/app
sudo -u www-data php composer.phar require kamisama/cake-resque:4.1.2

我拿到了这个：

Cannot create cache directory /home/akatiubuntutest/.composer/cache/repo/https---packagist.org/, or directory is not writable. Proceeding without cache
Cannot create cache directory /home/akatiubuntutest/.composer/cache/files/, or directory is not writable. Proceeding without cache
./composer.json has been updated
Cannot create cache directory /home/akatiubuntutest/.composer/cache/repo/https---packagist.org/, or directory is not writable. Proceeding without cache
Cannot create cache directory /home/akatiubuntutest/.composer/cache/files/, or directory is not writable. Proceeding without cache
Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Installing monolog/monolog (1.23.0)
    Downloading: 65%^C        

我在这里尝试了这个解决方案，无法创建缓存目录！用作曲家创建laravel项目时帮我解决这个问题：

sudo chown -R <user> /home/<user>/.composer/cache/repo/https---packagist.org

但是(从逻辑上讲，由于它尚未创建)，我得到了以下信息：

chown: cannot access '/home/<user>/.composer/cache/repo/https---packagist.org/': No such file or directory

我已经安装了PHP和依赖项：

# Install PHP and dependencies
sudo apt-get install libapache2-mod-php php php-cli php-gnupg php-dev php-json php-mysql php-opcache php-readline php-redis php-xml php-mbstring

现在，我不知道我错过了什么。

Answer 1

在我看来，你的命令中缺少小组的信息。

sudo chown -R <user> /home/<user>/.composer/cache/repo/https---packagist.org

应该是

sudo chown -R <user>:<group> /home/<user>/.composer/cache/repo/https---packagist.org

但为避免出现其他许可问题，我建议：

sudo chown -R <user>:<group> /home/<user>/.composer/cache

(您需要访问那里的其他文件夹)

sudo chown <user>:<group> /home/<user>/.composer

以确保用户对全局编写器文件夹拥有足够的权限。注意缺少的递归，这样用户就不会拥有由root创建的键。如果你需要找出这个组：

groups <user>