schemacheck.sh

#!/bin/bash

# Install the dependencies:
#
# brew install pipx
# pipx install graphql-schema-diff
#
# Example usage:

# λ › ./schemacheck.sh src/schema/schema.graphqls
# 🎉 Both schemas are equal!
#
# λ › ./schemacheck.sh src/schema/schema.graphqls origin/improve_error_handling
# ❌ `TimeInput.value` type changed from `NonNegativeInt!` to `NonNegativeFloat!`
# ❌ `Time.value` type changed from `NonNegativeInt!` to `NonNegativeFloat!`
# ❌ `ChargeInput.value` type changed from `Float!` to `NonNegativeFloat!`


# Check if schemadiff is installed
if ! command -v schemadiff > /dev/null; then
    echo "Error: schemadiff is not installed. Please install it using 'pipx install graphql-schema-diff'"
    exit 1
fi

# path to the graphqls file is mandatory
if [ -z "$1" ]; then
    # $1 is not set or is empty
    echo "Error: Missing file path argument."
    echo "Usage: schemacheck.sh [<schema.graphqls filename>] [<git commit hash>]"
    exit 1
fi

# Set the commit hash to HEAD if not specified
commit_hash=${2:-master}

# Create a temporary file
temp_file=$(mktemp)

# Retrieve the contents of the file from the commit and redirect the output to the temporary file
git show $commit_hash:$1 > $temp_file

# Pass the name of the temporary file as an argument to schemadiff
schemadiff -o $temp_file -n $1

# remove the temp file
rm $temp_file