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TS: Verify yarn installation

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This commit is contained in:
Asger F
2019-11-25 16:22:21 +00:00
parent b306eeeb6e
commit 7e515aeb72
1 changed files with 27 additions and 0 deletions
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27
javascript/extractor/src/com/semmle/js/extractor/AutoBuild.java
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@@ -21,8 +21,10 @@ import com.semmle.util.language.LegacyLanguage;
import com.semmle.util.process.Env;
import com.semmle.util.projectstructure.ProjectLayout;
import com.semmle.util.trap.TrapWriter;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.ProcessBuilder.Redirect;
import java.net.URI;
@@ -562,7 +564,32 @@ public class AutoBuild {
}
}
/** Returns true if yarn is installed, otherwise prints a warning and returns false. */
private boolean verifyYarnInstallation() {
ProcessBuilder pb = new ProcessBuilder(Arrays.asList("yarn", "-v"));
try {
Process process = pb.start();
boolean completed = process.waitFor(this.installDependenciesTimeout, TimeUnit.MILLISECONDS);
if (!completed) {
System.err.println("Yarn could not be launched. Timeout during 'yarn -v'.");
return false;
}
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String version = reader.readLine();
System.out.println("Found yarn version: " + version);
return true;
} catch (IOException | InterruptedException ex) {
System.err.println(
"Yarn not found. Please put 'yarn' on the PATH for automatic dependency installation.");
Exceptions.ignore(ex, "Continue without dependency installation");
return false;
}
}
protected void installDependencies(Set<Path> filesToExtract) {
if (!verifyYarnInstallation()) {
return;
}
for (Path file : filesToExtract) {
if (file.getFileName().toString().equals("package.json")) {
System.out.println("Installing dependencies from " + file);