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import { exec as _exec } from 'node:child_process';
import { createWriteStream, constants as fsConstants } from 'node:fs';
import { access } from 'node:fs/promises';
import path from 'node:path';
import { Readable } from 'node:stream';
import { finished } from 'node:stream/promises';
import util from 'node:util';
const promiseExec = util.promisify( _exec );
const exec = async ( cmd, opts ) => {
return promiseExec( cmd, {
encoding: 'UTF-8',
stdio: 'inherit',
...opts,
} );
};
export default async function didCalypsoAppChange( { slug, dir, artifactDir } ) {
await downloadPrevBuild( slug, dir );
const prevReleaseDir = path.join( dir, 'prev-release' );
const normalizer = path.join( dir, 'bin/normalize-artifact.sh' );
try {
await access( normalizer, fsConstants.X_OK );
await exec( normalizer, { cwd: prevReleaseDir } );
console.info( `Successfully normalized ${ slug }.` );
} catch ( e ) {
if ( e.code !== 'ENOENT' ) {
// ENOENT is expected for many apps which don't need this functionality.
console.error( e );
}
}
try {
await exec(
`diff -r --exclude="*.js.map" --exclude="*.asset.php" --exclude="build_meta.json" --exclude="README.md" ${ artifactDir } ${ prevReleaseDir }`,
{ cwd: dir, maxBuffer: 1024 * 1024 * 32 } // 32MB buffer for large diffs.
);
return false;
} catch ( { code, stdout, stderr } ) {
if ( code === 1 ) {
console.info( `The build for ${ slug } changed. Cause:` );
console.info( stdout );
return true;
}
throw new Error( `Unexpected error code ${ code } while diffing ${ slug } build: ${ stderr }` );
}
}
async function downloadPrevBuild( appSlug, dir ) {
const prevBuildZip = `${ dir }/prev-archive-download.zip`;
const stream = createWriteStream( prevBuildZip );
const prevBuildUrl = `${ process.env.tc_sever_url }/repository/download/calypso_calypso_WPComPlugins_Build_Plugins/${ appSlug }-release-build.tcbuildtag/${ appSlug }.zip?guest=1&branch=trunk`;
console.info( `Fetching previous release build for ${ appSlug } from ${ prevBuildUrl }` );
const { body, status } = await fetch( prevBuildUrl );
if ( status !== 200 ) {
throw new Error(
`Could not fetch previous build for ${ appSlug } (response code ${ status })! You can ignore this error when first adding a new app — just add a \`teamcity:build-app\` package script so it's ready for subsequent PRs, and add your app to the \`keepReleaseBuilds\` and \`artifactRules\` lists in \`.teamcity/_self/projects/WPComPlugins.kt\`.`
);
}
console.info( `Extracting downloaded archive for ${ appSlug }...` );
await finished( Readable.fromWeb( body ).pipe( stream ) );
await exec( `unzip -q ${ prevBuildZip } -d ${ dir }/prev-release` );
}
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