This script grants read access to all users on a specified Google Cloud Storage bucket and its contents, provided a bucket name is given as input.

Run example

npm run import -- "add public permissions to google cloud storage"

add public permissions to google cloud storage

if [[ -n $1 ]]; \
    then gsutil defacl ch -u AllUsers:R "$1" && \
    gsutil acl ch -u AllUsers:R "$1/**"; \
fi;

#!/bin/bash

# Check if a bucket path is provided as a command-line argument
if [[ -n "$1" ]]; then
  # Define a function to configure public read access
  configure_public_access() {
    # Remove any leading or trailing slashes from the bucket path
    bucket_path=${1#"${1%%[![:space:]]*}"}
    bucket_path=${bucket_path%"${bucket_path##*[![:space:]]}"}

    # Configure default ACL to grant read access to AllUsers
    gsutil defacl ch -u AllUsers:R "${bucket_path}"

    # Configure ACL for all objects within the bucket to grant read access to AllUsers
    gsutil acl ch -u AllUsers:R "${bucket_path}/**"
  }

  # Call the function to configure public access
  configure_public_access
fi

This code snippet uses the gsutil command-line tool to set read access for all users on a specified Google Cloud Storage bucket and its contents.

Here's a breakdown:

1. Conditional Check:

   • if [[ -n $1 ]]; checks if the first command-line argument ($1) is not empty.

2. Access Control:

   • then gsutil defacl ch -u AllUsers:R "$1" && gsutil acl ch -u AllUsers:R "$1/**"; executes two gsutil commands if the condition is true:
     • gsutil defacl ch -u AllUsers:R "$1" sets the default access control list (ACL) for the bucket ($1) to grant read access (R) to all users (AllUsers).
     • gsutil acl ch -u AllUsers:R "$1/**" applies the same read access to all objects (*) within the bucket.

3. End of Block:

   • fi marks the end of the if statement block.

In essence, this script grants read access to all users on a specified Google Cloud Storage bucket and its contents, but only if a bucket name is provided as input.