mirror of
https://github.com/acaloiaro/ess
synced 2026-07-21 18:29:08 +00:00
76 lines
1.9 KiB
Bash
76 lines
1.9 KiB
Bash
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#!/usr/bin/env bash
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set -e
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# A mapping of environment variables names to the the values used in `env.sample` as examples
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declare -A examples
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for i in "$@"; do
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case $i in
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-e=*|--env-file=*)
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ENV_FILE_NAME="${i#*=}"
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shift
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;;
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-s=*|--sample-file=*)
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SAMPLE_FILE_NAME="${i#*=}"
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shift
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;;
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-x=*|--example=*)
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varExample="${i#*=}"
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IFS='='; exampleTuple=($varExample); unset IFS;
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examples[${exampleTuple[0]}]=${exampleTuple[1]}
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shift
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;;
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-*|--*)
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echo "Unknown option $i"
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exit 1
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;;
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*)
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;;
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esac
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done
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ENV_FILE_NAME=${ENV_FILE_NAME:-.env}
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SAMPLE_FILE_NAME=${SAMPLE_FILE_NAME:-env.sample}
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function scrub_env_file() {
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local envFile=$1
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local sampleFile=$2
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local isComment='^[[:space:]]*#'
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local isBlank='^[[:space:]]*$'
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local sampleContent=""
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while IFS= read -r line; do
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# If the line contains an environment variable definition, scrub the variable value
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# and set a placeholder of the form: ENV_VAR=<ENV_VAR>
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if [[ ! $line =~ $isComment && ! $line =~ $isBlank ]]; then
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envVar=$(echo "$line" | cut -d '=' -f 1)
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# If the user supplied an example for this environment variable, use their example
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# instead of the environemnt variable name
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if [[ ${examples[$envVar]+FOUND} == "FOUND" ]]; then
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exampleValue="${examples[$envVar]}"
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else
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exampleValue="<$envVar>"
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fi
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sampleContent="${sampleContent}${envVar}=$exampleValue\n"
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else
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sampleContent="${sampleContent}${line}\n"
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fi
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done < <( cat "$envFile" )
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echo -e $sampleContent > $sampleFile
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}
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repoDir=$(git rev-parse --show-toplevel)
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envFilePath="$repoDir/$ENV_FILE_NAME"
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sampleFilePath="$repoDir/$SAMPLE_FILE_NAME"
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if [[ -f $envFilePath ]]; then
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scrub_env_file $envFilePath $sampleFilePath
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git add $SAMPLE_FILE_NAME
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else
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echo "No .env file found at: $envFilePath"
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fi
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