WordPress Multisite serve script for Nginx (Homestead, etc)

serve-wordpress-multisite.sh

#!/usr/bin/env bash
block="# WordPress multisite subdirectory rules.
# Designed to be included in any server {} block.

map \$uri \$blogname{
    ~^(?P<blogpath>/[^/]+/)files/(.*)       \$blogpath ;
}

map \$blogname \$blogid {
    default -999;

    #Ref: http://wordpress.org/extend/plugins/nginx-helper/
    include $2/wp-content/uploads/nginx-helper/map.conf;
}

server {
    listen ${3:-80};
    listen ${4:-443} ssl http2;
    server_name $1;
    root \"$2\";

    index index.html index.htm index.php;

    charset utf-8;

    location ~ ^(/[^/]+/)?files/(.+) {
        try_files /wp-content/blogs.dir/\$blogid/files/\$2 /wp-includes/ms-files.php?file=\$2 ;
        access_log off;     log_not_found off; expires max;
    }

    #avoid php readfile()
    location ^~ /blogs.dir {
        internal;
        alias $2/wp-content/blogs.dir ;
        access_log off;     log_not_found off; expires max;
    }

    if (!-e \$request_filename) {
        # Don't use `$uri` here, see https://github.com/yandex/gixy/issues/77
        rewrite /wp-admin$ \$scheme://\$host\$request_uri/ permanent;
        rewrite ^(/[^/]+)?(/wp-.*) \$2 last;
        rewrite ^(/[^/]+)?(/.*\.php) \$2 last;
    }

    location / {
        try_files \$uri \$uri/ /index.php?\$args ;
    }

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php$5-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME \$document_root\$fastcgi_script_name;
        $paramsTXT

        fastcgi_intercept_errors off;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
    }

    #add some rules for static content expiry-headers here
}"

echo "$block" > "/etc/nginx/sites-available/$1"
ln -fs "/etc/nginx/sites-available/$1" "/etc/nginx/sites-enabled/$1"