Automatic compilation of LESS CSS files in the theme
git-svn-id: https://svn.libreccm.org/ccm/trunk@4994 8810af33-2d31-482b-a856-94f89814c4dfmaster
jensp
parent
06487845bb
commit
522ab912e5
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@ -11,15 +11,18 @@
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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*/
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*/
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package com.arsdigita.themedirector.util;
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import com.arsdigita.themedirector.Theme;
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import com.arsdigita.themedirector.ThemeFile;
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import com.arsdigita.themedirector.ThemeFileCollection;
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import com.arsdigita.util.Assert;
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import com.arsdigita.util.UncheckedWrapperException;
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import com.inet.lib.less.Less;
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import org.apache.log4j.Logger;
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import java.util.Date;
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import java.util.Map;
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import java.util.HashMap;
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@ -28,7 +31,16 @@ import java.io.IOException;
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import java.io.ByteArrayOutputStream;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.io.InputStreamReader;
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import javax.script.Invocable;
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import javax.script.ScriptEngine;
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import javax.script.ScriptEngineManager;
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import javax.script.ScriptException;
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/**
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* This is a utility class that is able to take a theme and, when necessary,
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@ -40,39 +52,44 @@ import java.io.FileNotFoundException;
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*/
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public class ThemeFileUtil {
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private static Logger s_log =
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Logger.getLogger(ThemeFileUtil.class);
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private static Logger s_log = Logger.getLogger(ThemeFileUtil.class);
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/**
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* this copies the files from the file system to the database.
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* this copies the files from the file system to the database.
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*
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* @param currentFile The directory to search recursively for files
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* to put in the database or the single file to add to the db.
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* @param currentTheme The current theme that is being operated on
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* @param serverSpecificPath The absolute path of the root
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* file. This string is removed from the absolute path of the current
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* file to get the filePath property of the ThemeFile
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* @param themeFiles A Map of ThemeFiles with the key being the
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* filePath. This is used to look up files that have already been
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* pulled from the database so that the code does not have to
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* check the db once for every file.
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* @param overwriteNewerFiles If this is true then it insert everything
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* in to the database. If this is false, it only writes the file to the
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* database if the file on the file system is newer than the one in
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* the database.
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* @param fileType The type of file this is.
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* ThemeFile.LIVE and ThemeFile.DRAFT are the two allowed values.
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* @param currentFile The directory to search recursively for files
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* to put in the database or the single file to
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* add to the db.
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* @param currentTheme The current theme that is being operated on
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* @param serverSpecificPath The absolute path of the root file. This
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* string is removed from the absolute path of
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* the current file to get the filePath property
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* of the ThemeFile
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* @param themeFiles A Map of ThemeFiles with the key being the
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* filePath. This is used to look up files that
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* have already been pulled from the database so
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* that the code does not have to check the db
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* once for every file.
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* @param overwriteNewerFiles If this is true then it insert everything in
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* to the database. If this is false, it only
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* writes the file to the database if the file on
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* the file system is newer than the one in the
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* database.
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* @param fileType The type of file this is. ThemeFile.LIVE and
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* ThemeFile.DRAFT are the two allowed values.
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*
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*/
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public static void updateDatabaseFiles(File currentFile, Theme currentTheme,
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String serverSpecificPath,
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boolean overwriteNewerFiles,
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String fileType) {
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Assert.isTrue(ThemeFile.LIVE.equals(fileType) ||
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ThemeFile.DRAFT.equals(fileType));
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HashMap themeFiles = new HashMap();
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ThemeFileCollection collection = null;
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Assert.isTrue(ThemeFile.LIVE.equals(fileType) || ThemeFile.DRAFT.equals(
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fileType));
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prepareThemeDirectory(serverSpecificPath);
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Map<String, ThemeFile> themeFiles = new HashMap<>();
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ThemeFileCollection collection;
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if (ThemeFile.LIVE.equals(fileType)) {
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collection = currentTheme.getPublishedThemeFiles();
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} else {
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@ -85,30 +102,123 @@ public class ThemeFileUtil {
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themeFiles.put(file.getFilePath(), file);
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}
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}
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updateDatabaseFiles(currentFile, currentTheme, serverSpecificPath,
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themeFiles, overwriteNewerFiles, fileType);
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}
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/**
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* Prepares the theme directory. At the moment only compiles LESS CSS files.
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* All files which do not end with {@code *.less}. Also files ending with
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* {@code *.inc.less}. are ignored. These files are interpreted as include
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* files that are included into another LESS file.
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*
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* @param themePath
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*/
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private static void prepareThemeDirectory(final String themePath) {
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final Path root = Paths.get(themePath);
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if (!Files.isDirectory(root)) {
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return;
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}
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try {
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Files
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.newDirectoryStream(root)
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.forEach(path -> prepareThemeFile(path));
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} catch (IOException ex) {
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throw new UncheckedWrapperException(ex);
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}
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}
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private static void prepareThemeFile(final Path path) {
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if (Files.isDirectory(path)) {
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try {
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Files
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.newDirectoryStream(path)
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.forEach(current -> prepareThemeFile(current));
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} catch (IOException ex) {
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throw new UncheckedWrapperException(ex);
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}
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} else {
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final String fileName = path.toString();
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if (fileName.toLowerCase().endsWith(".less")
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&& !fileName.toLowerCase().endsWith(".inc.less")) {
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try {
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final String result = Less.compile(path.toFile(), false);
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final String outputPath = String.format(
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"%s.css",
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fileName.substring(0, fileName.length() - ".less"
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.length()));
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final Path output = Paths.get(outputPath);
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Files.write(output, result.getBytes());
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} catch (IOException ex) {
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throw new UncheckedWrapperException(ex);
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}
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// s_log.debug(String.format("Compiling %s to CSS...", fileName));
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// final ScriptEngine scriptEngine = new ScriptEngineManager()
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// .getEngineByName("JavaScript");
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// try {
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// scriptEngine.eval("var global = this;\n"
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// + "var window = this;\n"
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// + "var process = {env:{}};\n" + "\n"
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// + "var console = {};\n"
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// + "console.debug = print;\n"
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// + "console.log = print;\n"
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// + "console.warn = print;\n"
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// + "console.error = print;");
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// scriptEngine
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// .eval(new InputStreamReader(ThemeFileUtil.class
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// .getResourceAsStream(
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// "/com/arsdigita/themedirector/util/less.min.js")));
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// } catch (ScriptException ex) {
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// throw new UncheckedWrapperException(ex);
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// }
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// final Invocable invocable = (Invocable) scriptEngine;
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// final String lesscss;
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// try {
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// lesscss = new String(Files.readAllBytes(path));
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// } catch (IOException ex) {
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// throw new UncheckedWrapperException(ex);
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// }
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//
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// try {
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// final Object result = invocable.invokeFunction("render",
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// lesscss);
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// s_log.debug(result);
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// } catch (NoSuchMethodException | ScriptException ex) {
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// throw new UncheckedWrapperException(ex);
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// }
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}
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}
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}
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/**
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* this copies the files to the database
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* this copies the files to the database
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*
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* @param currentFile The directory to search recursively for files
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* to put in the database or the single file to add to the db.
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* @param currentTheme The current theme that is being operated on
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* @param serverSpecificPath The absolute path of the root
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* file. This string is removed from the absolute path of the current
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* file to get the filePath property of the ThemeFile
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* @param themeFiles A Map of ThemeFiles with the key being the
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* filePath. This is used to look up files that have already been
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* pulled from the database so that the code does not have to
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* check the db once for every file.
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* @param overwriteNewerFiles If this is true then it insert everything
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* in to the database. If this is false, it only writes the file to the
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* database if the file on the file system is newer than the one in
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* the database.
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* @param fileType The type of file this is.
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* ThemeFile.LIVE and ThemeFile.DRAFT are the two allowed values.
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* @param currentFile The directory to search recursively for files
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* to put in the database or the single file to
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* add to the db.
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* @param currentTheme The current theme that is being operated on
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* @param serverSpecificPath The absolute path of the root file. This
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* string is removed from the absolute path of
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* the current file to get the filePath property
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* of the ThemeFile
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* @param themeFiles A Map of ThemeFiles with the key being the
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* filePath. This is used to look up files that
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* have already been pulled from the database so
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* that the code does not have to check the db
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* once for every file.
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* @param overwriteNewerFiles If this is true then it insert everything in
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* to the database. If this is false, it only
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* writes the file to the database if the file on
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* the file system is newer than the one in the
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* database.
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* @param fileType The type of file this is. ThemeFile.LIVE and
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* ThemeFile.DRAFT are the two allowed values.
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*
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*/
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private static void updateDatabaseFiles(File currentFile,
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@ -131,15 +241,16 @@ public class ThemeFileUtil {
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String fullFilePath = currentFile.getAbsolutePath();
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String filePath = null;
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int beginIndex = fullFilePath.indexOf(serverSpecificPath);
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if (beginIndex > -1 &&
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fullFilePath.length() > serverSpecificPath.length()) {
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filePath = fullFilePath.substring
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(beginIndex + serverSpecificPath.length() + 1);
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if (beginIndex > -1 && fullFilePath.length()
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> serverSpecificPath.length()) {
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filePath = fullFilePath.substring(beginIndex
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+ serverSpecificPath
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.length() + 1);
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} else {
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filePath = fullFilePath;
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}
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ThemeFile themeFile = (ThemeFile)themeFiles.get(filePath);
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ThemeFile themeFile = (ThemeFile) themeFiles.get(filePath);
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if (!overwriteNewerFiles && themeFile != null) {
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// make sure the currentFile is newer than the
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// file in the db.
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@ -152,9 +263,9 @@ public class ThemeFileUtil {
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}
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// Undelete the file if it reappeared
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if (themeFile != null
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&& themeFile.isDeleted()
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&& themeFile.getLastModifiedDate()
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.before(new Date(currentFile.lastModified()))) {
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&& themeFile.isDeleted()
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&& themeFile.getLastModifiedDate()
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.before(new Date(currentFile.lastModified()))) {
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themeFile.setDeleted(false);
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s_log.info("Undeleting the file: " + currentFile);
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}
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@ -176,8 +287,8 @@ public class ThemeFileUtil {
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}
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themeFile.setVersion(fileType);
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themeFile.setContent(content);
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themeFile.setLastModifiedDate
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(new Date(currentFile.lastModified()));
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themeFile.setLastModifiedDate(new Date(currentFile
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.lastModified()));
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// we save to help with stack trace issues and so that
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// we don't have too many build up.
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@ -185,14 +296,15 @@ public class ThemeFileUtil {
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in.close();
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os.close();
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} catch (FileNotFoundException fnfe) {
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s_log.error("Error opening file reader for " +
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currentFile.getAbsolutePath(), fnfe);
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s_log.error("Error opening file reader for " + currentFile
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.getAbsolutePath(), fnfe);
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} catch (IOException ex) {
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s_log.error("Error working with either the input or " +
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" output stream for " +
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currentFile.getAbsolutePath(), ex);
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s_log.error("Error working with either the input or "
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+ " output stream for " + currentFile
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.getAbsolutePath(), ex);
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}
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}
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}
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}
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}
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