main.java.coursier.paths.Util Maven / Gradle / Ivy
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package coursier.paths;
import java.io.IOException;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Util {
// No real reason to put that in the path module, except from the fact that that makes this accessible
// from both the bootstrap-launcher and cli modules.
private static final Pattern propertyRegex =
Pattern.compile(Pattern.quote("${") + "[^" + Pattern.quote("{[()]}") + "]*" + Pattern.quote("}"));
public static Map expandProperties(Map properties) {
return expandProperties(System.getProperties(), properties);
}
public static Map expandProperties(
Properties systemProperties,
Map properties) {
final Map resolved = new LinkedHashMap<>(properties.size());
final Map withProps = new LinkedHashMap<>(properties.size());
for (String k : properties.keySet()) {
String value = properties.get(k);
String actualKey = k;
boolean process = true;
if (k.endsWith("?")) {
actualKey = k.substring(0, k.length() - 1);
process = !systemProperties.containsKey(actualKey);
}
if (process) {
Matcher matcher = propertyRegex.matcher(value);
if (matcher.find()) {
withProps.put(actualKey, value);
} else {
resolved.put(actualKey, value);
}
}
}
// we don't go recursive here - dynamic properties can only reference static ones
for (String k : withProps.keySet()) {
String value = withProps.get(k);
Matcher matcher = propertyRegex.matcher(value);
// cycles would loop indefinitely here :-|
while (matcher.find()) {
int start = matcher.start(0);
int end = matcher.end(0);
String subKey = value.substring(start + 2, end - 1);
String subValue = resolved.get(subKey);
if (subValue == null)
subValue = systemProperties.getProperty(subKey);
if (subValue == null)
subValue = ""; // throw instead?
value = value.substring(0, start) + subValue + value.substring(end);
matcher = propertyRegex.matcher(value);
}
resolved.put(k, value);
}
return resolved;
}
public static void createDirectories(Path path) throws IOException {
try {
Files.createDirectories(path);
} catch (FileAlreadyExistsException ex) {
// see https://bugs.openjdk.java.net/browse/JDK-8130464
// Files.createDirectories does that check too, but with LinkOptions.NOFOLLOW_LINKS
if (!Files.isDirectory(path))
throw ex;
}
}
private static volatile Boolean useColorOutput0 = null;
private static boolean computeUseColorOutput() {
if (System.getenv("INSIDE_EMACS") != null)
return false;
boolean disableViaEnv;
String envProgress = System.getenv("COURSIER_PROGRESS");
if (envProgress != null && (envProgress.equalsIgnoreCase("true") || envProgress.equalsIgnoreCase("enable") || envProgress.equalsIgnoreCase("1"))) {
disableViaEnv = false;
} else if (envProgress != null && (envProgress.equalsIgnoreCase("false") || envProgress.equalsIgnoreCase("disable") || envProgress.equalsIgnoreCase("0"))) {
disableViaEnv = true;
} else {
disableViaEnv = System.getenv("COURSIER_NO_TERM") != null;
}
if (disableViaEnv)
return false;
return true;
}
// a bit more loose than useAnsiOutput (doesn't look at System.console() == null or System.getenv("CI"))
public static boolean useColorOutput() {
if (useColorOutput0 == null) {
useColorOutput0 = computeUseColorOutput();
}
return useColorOutput0;
}
private static volatile Boolean useAnsiOutput0 = null;
private static boolean computeUseAnsiOutput() {
if (System.console() == null)
return false;
if (System.getenv("INSIDE_EMACS") != null)
return false;
if (System.getenv("CI") != null)
return false;
boolean disableViaEnv;
String envProgress = System.getenv("COURSIER_PROGRESS");
if (envProgress != null && (envProgress.equalsIgnoreCase("true") || envProgress.equalsIgnoreCase("enable") || envProgress.equalsIgnoreCase("1"))) {
disableViaEnv = false;
} else if (envProgress != null && (envProgress.equalsIgnoreCase("false") || envProgress.equalsIgnoreCase("disable") || envProgress.equalsIgnoreCase("0"))) {
disableViaEnv = true;
} else {
disableViaEnv = System.getenv("COURSIER_NO_TERM") != null;
}
if (disableViaEnv)
return false;
return true;
}
public static boolean useAnsiOutput() {
if (useAnsiOutput0 == null) {
useAnsiOutput0 = computeUseAnsiOutput();
}
return useAnsiOutput0;
}
private static Boolean useJni0 = null;
public static boolean useJni() {
return useJni(() -> {});
}
public static boolean useJni(Runnable beforeJni) {
if (useJni0 != null)
return useJni0;
boolean isWindows = System.getProperty("os.name")
.toLowerCase(Locale.ROOT)
.contains("windows");
if (!isWindows) {
useJni0 = false;
return useJni0;
}
String prop = System.getenv("COURSIER_JNI");
if (prop == null || prop.isEmpty())
prop = System.getProperty("coursier.jni", "");
boolean force = prop.equalsIgnoreCase("force");
if (force) {
beforeJni.run();
useJni0 = true;
return useJni0;
}
boolean disabled = prop.equalsIgnoreCase("false");
if (disabled) {
useJni0 = false;
return useJni0;
}
// Try to get a dummy user env var from registry. If it fails, assume the JNI stuff is broken,
// and fallback on PowerShell scripts.
try {
beforeJni.run();
coursier.jniutils.WindowsEnvironmentVariables.get("PATH");
useJni0 = true;
} catch (Throwable t) {
if (System.getProperty("coursier.jni.check.throw", "").equalsIgnoreCase("true"))
throw new RuntimeException(t);
useJni0 = false;
}
return useJni0;
}
}