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Adding a -f force flag to remove the output directory #1

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5bb6bef
Update cli.ts
gruber76 Jun 15, 2021
1655f15
Update index.ts
gruber76 Jun 15, 2021
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5 changes: 5 additions & 0 deletions src/cli.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ import { bundle } from '.';
const options = yargs
.usage('Usage: $0 [options]')
.example('$0', 'Bundle from `build` to `lambda`')
.example('$0 -f', 'Bundle from `build` to `lambda`, first removing `lambda` if it exists.')
.example('$0 -o code -vv', 'Bundle from `build` to `code`, very verbosely')
.example('$0 -i dist -o package', 'Bundle from `dist` to `package`')
.example('$0 -e aws-sdk other-pkg', 'Bundle, excluding `aws-sdk` and `other-pkg`')
Expand Down Expand Up @@ -37,6 +38,8 @@ const options = yargs
.array('e')
.alias('e', 'exclude-packages')
.default('e', ['aws-sdk'])
.describe('f', 'Force mode, which deletes the output directory before running')
.default('f', false)
.describe('v', 'Enable verbose output (multiple v for more)')
.count('v')
.alias('v', 'verbose')
Expand All @@ -48,12 +51,14 @@ const {
i: inputDir,
o: outputDir,
e: excludePackages,
f: force,
v: verbosity,
} = options;

bundle({
inputDir,
outputDir,
excludePackages,
force,
verbosity,
});
18 changes: 17 additions & 1 deletion src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,8 @@ interface BundleParams {
outputDir: string;
/** Packages to exclude from bundling */
excludePackages: string[];
/** Whether to force deletion of the output directory */
force: boolean;
/** 0 means quiet, higher numbers are more verbose */
verbosity: number;
}
Expand All @@ -95,6 +97,7 @@ export const bundle = ({
inputDir,
outputDir,
excludePackages,
force,
verbosity,
}: BundleParams): void => {
if (!fs.existsSync(inputDir)) {
Expand All @@ -105,7 +108,20 @@ export const bundle = ({
}

if (fs.existsSync(outputDir)) {
throw new Error(`Output directory ${outputDir} already exists`);
if (force) {
if (verbosity > 0) {
console.log(`Removing directory ${outputDir}`);
}
fs.rmdirSync(outputDir, { recursive: true });
if (verbosity > 0) {
console.log(`Directory ${outputDir} removed`);
}

} else {
throw new Error(`Output directory ${outputDir} already exists`);
}
} else {
console.log(`Output directory ${outputDir} does not already exist`);
}

console.log(`Bundling ${inputDir} and dependencies to ${outputDir}`);
Expand Down