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apply-preferences.groovy
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#!/usr/bin/env groovy
import java.text.DateFormat
import java.util.Map.Entry
import java.util.jar.Manifest
/*
* Class and interface definitions
*/
class SortedProperties extends Properties {
synchronized Enumeration<Object> keys() {
Enumeration keysEnum = super.keys()
Vector keyList = new Vector()
while (keysEnum.hasMoreElements()) {
keyList.add(keysEnum.nextElement())
}
Collections.sort(keyList)
return keyList.elements()
}
}
interface ProjectFilter {
/**
* Determines if a project shall be processed
*
* @param projectDir the project directory
*
* @return if the project is accepted
*/
boolean acceptProject(File projectDir);
}
class ProjectPreferencesApplier {
private final Map<String, SortedProperties> defaults = [:]
private static final DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM)
/**
* Load default preferences from all .prefs files in the given directory
*
* @param prefsPath the path to the default preferences directory
*
* @return if any preference files were found
*/
boolean loadDefaults(File path) {
File[] prefFiles = path.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.toLowerCase().endsWith(".prefs")
}
});
boolean foundPreferences = false
if (prefFiles != null) {
for (File prefFile : prefFiles) {
SortedProperties properties = new SortedProperties()
try {
properties.load(new BufferedReader(new FileReader(prefFile)))
if (properties.isEmpty()) {
println("Warning: empty preference file: " + prefFile.getAbsolutePath())
}
String key = prefFile.getName()
defaults.put(key, properties)
foundPreferences = true
// println("Loaded default preferences: " + prefFile.getName())
} catch (FileNotFoundException e) {
// ignore
} catch (IOException e) {
println("Error reading preference file: " + prefFile.getAbsolutePath())
}
}
println('Loaded preferences from: ' + path as String)
}
return foundPreferences
}
/**
* Apply the preference defaults to projects found in the given search path
*
* @param searchPath the search path
* @param projectFilter the project filter
*/
public void applyDefaults(File searchPath, ProjectFilter projectFilter) {
Collection<? extends File> projectDirs = findProjectDirectories(searchPath, true)
int ignored = 0
for (File projectDir : projectDirs) {
if (projectFilter.acceptProject(projectDir)) {
// apply project preferences
applyProjectDefaults(projectDir)
}
else {
ignored++
}
}
println("Ignored " + ignored + " project directories.")
}
/**
* Apply the project preference defaults to the project in the given
* directory
*
* @param projectDir the project direktory
*/
private void applyProjectDefaults(File projectDir) {
// settings directory
File settingsDir = new File(projectDir, ".settings")
if (!settingsDir.exists()) {
settingsDir.mkdir()
}
boolean success = true;
for (Entry<String, SortedProperties> entry : defaults.entrySet()) {
String filename = entry.getKey()
SortedProperties defaults = entry.getValue()
File propertiesFile = new File(settingsDir, filename)
if (propertiesFile.exists()) {
// apply defaults to existing file
SortedProperties current = new SortedProperties()
try {
current.load(new BufferedReader(new FileReader(propertiesFile)))
boolean changed = false
// copy defaults
Enumeration<Object> en = defaults.keys()
while (en.hasMoreElements()) {
String key = (String) en.nextElement()
String defaultValue = defaults.getProperty(key)
String oldValue = current.getProperty(key)
if (oldValue == null || !oldValue.equals(defaultValue)) {
current.setProperty(key, defaultValue)
changed = true
}
}
// save file
if (changed) {
current.store(new FileWriter(propertiesFile), "Updated from default preferences " + dateFormat.format(new Date()))
}
} catch (FileNotFoundException e) {
e.printStackTrace()
success = false
} catch (IOException e) {
println("Error updating preferences '" + filename + "' for project in " + projectDir.getAbsolutePath())
success = false
}
}
else {
// create initial file
try {
defaults.store(new FileWriter(propertiesFile), "Created from default preferences " + dateFormat.format(new Date()))
} catch (IOException e) {
println("Error saving default preferences '" + filename + "' for project in " + projectDir.getAbsolutePath())
success = false
}
}
}
if (success) {
println("Successfully updated project preferences for " + projectDir.getName())
}
}
/**
* Find the project directories in the given search path
*
* @param searchPath the search path
* @param searchInProjects if inside project directories shall also be searched for projects
*
* @return the project directories
*/
private Collection<? extends File> findProjectDirectories(File searchPath,
boolean searchInProjects) {
List<File> projectDirs = []
boolean project = false;
File projectFile = new File(searchPath, ".project")
File classpathFile = new File(searchPath, ".classpath") // check also for classpath file to filter non-Java projects
if (projectFile.exists() && classpathFile.exists()) {
// search path is project dir
projectDirs.add(searchPath);
project = true;
}
if (!project || searchInProjects) {
File[] candidates = searchPath.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
// ignore files starting with .
if (name.startsWith(".")) {
return false
}
// ignore build directories
if (name.equals("build")) {
return false
}
return true
}
});
if (candidates != null) {
for (File candidate : candidates) {
projectDirs.addAll(findProjectDirectories(candidate, false))
}
}
}
return projectDirs
}
}
void apply(File prefs, File searchPath, ProjectFilter projectFilter = { File projectDir -> true }) {
ProjectPreferencesApplier applier = new ProjectPreferencesApplier()
if (!applier.loadDefaults(prefs)) {
println("No preference files found in " + prefs + ".")
}
else {
applier.applyDefaults(searchPath, projectFilter)
}
}
/*
* Script
*/
// filter that detects Java 8 projects and updates the classpath setting
def isJava8 = { File projectDir ->
File manifestFile = new File(new File(projectDir, 'META-INF'), 'MANIFEST.MF')
boolean match = false
if (manifestFile.exists()) {
manifestFile.withInputStream {
def manifest = new Manifest(it)
def attributes = manifest.getMainAttributes()
def env = attributes.getValue('Bundle-RequiredExecutionEnvironment')
match = (env == 'JavaSE-1.8')
}
}
if (match) {
// update to Java 8 -> also replace classpath setting
// XXX kind of a hack to do it in the filter
File classpathFile = new File(projectDir, '.classpath')
if (classpathFile.exists()) {
def fileContent = classpathFile.text
def java7cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7'
def java8cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
def java17cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17'
def java18cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-18'
if (fileContent.contains(java8cp)) {
classpathFile.text = fileContent.replace(java8cp, java18cp)
}
}
}
match
}
// filter that detects Java 8 projects and updates the classpath setting
def isJava18 = { File projectDir ->
File manifestFile = new File(new File(projectDir, 'META-INF'), 'MANIFEST.MF')
boolean match = false
if (manifestFile.exists()) {
manifestFile.withInputStream {
def manifest = new Manifest(it)
def attributes = manifest.getMainAttributes()
def env = attributes.getValue('Bundle-RequiredExecutionEnvironment')
match = (env == 'JavaSE-1.8')
}
}
if (match) {
// update to Java 8 -> also replace classpath setting
// XXX kind of a hack to do it in the filter
File classpathFile = new File(projectDir, '.classpath')
if (classpathFile.exists()) {
def fileContent = classpathFile.text
def java7cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7'
def java8cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8'
def java17cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17'
def java18cp = 'org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-18'
if (fileContent.contains(java18cp)) {
classpathFile.text = fileContent.replace(java18cp, java17cp)
}
}
}
match
}
// apply preferences to projects
def java7 = 'platform/preferences/java7' as File
def java8 = 'platform/preferences/java8' as File
def java17 = 'platform/preferences/java17' as File
def java18 = 'platform/preferences/java18' as File
def searchPaths = ['common', 'cst', 'io', 'server', 'doc', 'ui', 'util', 'app', 'ext/styledmap', 'ext/geom', 'ext/adv']
searchPaths.each {
// default: Java 8
apply(java17, it as File, { !isJava18(it) } as ProjectFilter)
// Java 17
apply(java17, it as File, isJava18 as ProjectFilter)
}
//searchPaths.each {
// default: Java 8
// apply(java18, it as File, { !isJava8(it) } as ProjectFilter)
// Java 8
// apply(java18, it as File, isJava8 as ProjectFilter)
//}
// external contributions w/ different project settings
apply('platform/preferences/xslt' as File, 'ext/xslt' as File)
apply('platform/preferences/xslt' as File, 'ext/ageobw' as File)
apply('platform/preferences/mdl' as File, 'ext/mdl' as File)