Change 117522 by jkristian@jkristian-home on 2003/11/11 00:46:57
Renamed UnixStyleFilter to UnixCommand.
Improved.
Affected files ...
... //users/jkristian/lib/UnixCommandResources.properties#1 branch
... //users/jkristian/lib/UnixStyleFilterResources.properties#2 delete
... //users/jkristian/lib/p4d2pResources.properties#3 edit
... //users/jkristian/src/UnixCommand.java#1 add
... //users/jkristian/src/UnixStyleFilter.java#3 delete
... //users/jkristian/src/p4d2p.java#3 edit
Differences ...
==== //users/jkristian/lib/p4d2pResources.properties#3 (text) ====
Index: //users/jkristian/lib/p4d2pResources.properties
*** users/jkristian/lib/p4d2pResources.properties #2
--- users/jkristian/lib/p4d2pResources.properties #3
***************
*** 46,48 ****
--- 46,49 ----
\ John Kristian <jkristian@docent.com>. Thanks to Gurusamy Sarathy for\n\
\ inspiration; but I accept all blame.\n\
+ diff.default: converting default diff (not recommended for `patch`)\n
==== //users/jkristian/src/p4d2p.java#3 (text) ====
Index: //users/jkristian/src/p4d2p.java
*** users/jkristian/src/p4d2p.java #2
--- users/jkristian/src/p4d2p.java #3
***************
*** 1,8 ****
import java.io.File;
- import java.io.BufferedReader;
- import java.io.InputStreamReader;
import java.io.IOException;
- import java.io.PushbackReader;
import java.io.Writer;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
--- 1,5 ----
***************
*** 17,67 ****
public class p4d2p implements LineWriter {
public static void main(String[] ARGV) throws IOException {
! UnixStyleFilter filter = new UnixStyleFilter(p4d2p.class, "hi::o:p:v", ARGV);
try {
! Properties options = filter.getOptions();
! if (options.getProperty("h") != null) {
! filter.writeError(filter.getHelp());
} else {
! filter.setEditInPlace(options.getProperty("i"));
! LineWriter self = new p4d2p(filter, filter.getOutputWriter());
! while (filter.getFile()) {
! Copier.copyAll(filter.getInputLineReader(), self);
self.close();
}
}
} finally {
! filter.flush();
}
}
! private String oldFile = null;
! private String oldNote;
! private String newFile;
! private String newNote;
! private List movedFiles = new ArrayList();
! private static final Pattern P4_DESCRIBE_MOVE = Pattern.compile("^\\.\\.\\. (//.+?\\#\\d+ (add|branch|delete))$", Pattern.MULTILINE);
! private static final Pattern P4_MOVED_FILE = Pattern.compile("//(.+?)(\\#\\d+) (\\w*)$", Pattern.MULTILINE);
! private static final Pattern P4_DESCRIBE_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) .*?====( \\(.+\\))?$", Pattern.MULTILINE);
! private static final Pattern P4_DIFF_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) +- +(.+?) +====( \\(.+\\))?$", Pattern.MULTILINE);
! private static final Pattern P4_DIFF2_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) +\\(.+?\\) +- +(.+?)(\\#\\d+) +\\(.+?\\) +==== +\\w+$", Pattern.MULTILINE);
! private static final Pattern VERSION = Pattern.compile("\\#(\\d+)");
! private static final Pattern UNIFIED_DIFF = Pattern.compile("^\\@\\@\\s.*\\s\\@\\@$", Pattern.MULTILINE);
! private static final Pattern CONTEXT_DIFF = Pattern.compile("^\\*+$", Pattern.MULTILINE);
! private static final Pattern DEFAULT_DIFF = Pattern.compile("^\\d+(,\\d+)?[acd]\\d+", Pattern.MULTILINE);
public void write(StringBuffer line) throws IOException {
- //if (verbose) out.write("// write(line)\n");
Matcher m;
if ((m = P4_DESCRIBE_MOVE.matcher(line)).find()) { // add, branch or delete
- if (verbose) out.write("// p4 describe move\n");
movedFiles.add(m.group(1));
} else if ((m = P4_DIFF_HEADER.matcher(line)).find()) {
- if (verbose) out.write("// p4 diff header\n");
oldFile = m.group(1);
newFile = m.group(3);
oldNote = " " + options.getProperty("o", m.group(2));
--- 14,78 ----
public class p4d2p implements LineWriter {
public static void main(String[] ARGV) throws IOException {
! UnixCommand command = new UnixCommand(p4d2p.class, "hi::o:p:v", ARGV);
try {
! Properties options = command.getOptions();
! if (options.get("h") != null) {
! command.writeError(command.getHelp());
} else {
! command.setEditInPlace(options.getProperty("i"));
! LineWriter self = new p4d2p(command);
! while (command.getFile()) {
! Copier.copyAll(command.getInputLineReader(), self);
self.close();
}
}
} finally {
! command.flush();
}
}
! protected p4d2p(UnixCommand command) throws IOException {
! this.command = command;
! this.options = command.getOptions();
! this.verbose = (options.get("v") != null);
! this.out = command.getOutputWriter();
! }
!
! protected static DateFormat timeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z"); // ISO 8601
! protected static String epoch = timeFormat.format(new Date(0));
!
! protected String now = timeFormat.format(new Date());
! protected UnixCommand command;
! protected Properties options;
! protected boolean verbose;
! protected Writer out;
! protected Writer err;
! protected String oldFile = null;
! protected String oldNote;
! protected String newFile;
! protected String newNote;
! protected List movedFiles = new ArrayList();
! protected static Pattern P4_DESCRIBE_MOVE = Pattern.compile("^\\.\\.\\. (//.+?\\#\\d+ (add|branch|delete))$", Pattern.MULTILINE);
! protected static Pattern P4_MOVED_FILE = Pattern.compile("//(.+?)(\\#\\d+) (\\w*)$", Pattern.MULTILINE);
! protected static Pattern P4_DESCRIBE_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) .*?====( \\(.+\\))?$", Pattern.MULTILINE);
! protected static Pattern P4_DIFF_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) +- +(.+?) +====( \\(.+\\))?$", Pattern.MULTILINE);
! protected static Pattern P4_DIFF2_HEADER = Pattern.compile("^==== //(.+?)(\\#\\d+) +\\(.+?\\) +- +(.+?)(\\#\\d+) +\\(.+?\\) +==== +\\w+$",
! Pattern.MULTILINE);
! protected static Pattern VERSION = Pattern.compile("\\#(\\d+)");
! protected static Pattern UNIFIED_DIFF = Pattern.compile("^\\@\\@\\s.*\\s\\@\\@$", Pattern.MULTILINE);
! protected static Pattern CONTEXT_DIFF = Pattern.compile("^\\*+$", Pattern.MULTILINE);
! protected static Pattern DEFAULT_DIFF = Pattern.compile("^\\d+(,\\d+)?[acd]\\d+", Pattern.MULTILINE);
public void write(StringBuffer line) throws IOException {
Matcher m;
if ((m = P4_DESCRIBE_MOVE.matcher(line)).find()) { // add, branch or delete
movedFiles.add(m.group(1));
} else if ((m = P4_DIFF_HEADER.matcher(line)).find()) {
oldFile = m.group(1);
newFile = m.group(3);
oldNote = " " + options.getProperty("o", m.group(2));
***************
*** 69,82 ****
newNote = " " + ((lastModified == 0) ? now : timeFormat.format(new Date(lastModified)));
} else if ((m = P4_DIFF2_HEADER.matcher(line)).find()) {
- if (verbose) out.write("// p4 diff2 header\n");
oldFile = m.group(1);
newFile = m.group(3);
oldNote = " " + options.getProperty("o", m.group(2));
newNote = " " + m.group(4);
} else if ((m = P4_DESCRIBE_HEADER.matcher(line)).find()) {
- if (verbose) out.write("// p4 describe header\n");
newFile = m.group(1);
newNote = " " + m.group(2);
oldFile = newFile;
--- 80,91 ----
***************
*** 87,112 ****
} else if (oldFile != null) {
if ((m = UNIFIED_DIFF.matcher(line)).find()) { // the preferred format for `patch`
- if (verbose) System.err.println("emitting diff -u header");
out.write("Index: //" + oldFile + "\n");
out.write("--- " + oldFile + oldNote + "\n");
out.write("+++ " + oldFile + newNote + "\n");
oldFile = null;
} else if ((m = CONTEXT_DIFF.matcher(line)).find()) {
- if (verbose) System.err.println("emitting diff -c header");
out.write("Index: //" + oldFile + "\n");
out.write("*** " + oldFile + oldNote + "\n");
out.write("--- " + oldFile + newNote + "\n");
oldFile = null;
} else if ((m = DEFAULT_DIFF.matcher(line)).find()) {
! if (verbose) System.err.println("emitting diff header (not recommended for `patch`)");
out.write("Index: " + oldFile + "\n");
out.write("diff -r //" + oldFile + " " + newFile + "\n");
oldFile = null;
}
}
out.write(line.toString());
}
--- 96,120 ----
} else if (oldFile != null) {
if ((m = UNIFIED_DIFF.matcher(line)).find()) { // the preferred format for `patch`
out.write("Index: //" + oldFile + "\n");
out.write("--- " + oldFile + oldNote + "\n");
out.write("+++ " + oldFile + newNote + "\n");
oldFile = null;
} else if ((m = CONTEXT_DIFF.matcher(line)).find()) {
out.write("Index: //" + oldFile + "\n");
out.write("*** " + oldFile + oldNote + "\n");
out.write("--- " + oldFile + newNote + "\n");
oldFile = null;
} else if ((m = DEFAULT_DIFF.matcher(line)).find()) {
! if (verbose) command.writeError(command.getResource("diff.default"));
out.write("Index: " + oldFile + "\n");
out.write("diff -r //" + oldFile + " " + newFile + "\n");
oldFile = null;
}
}
+
out.write(line.toString());
}
***************
*** 123,134 ****
newFile = m.group(1);
newNote = m.group(2);
verb = m.group(3);
- if (verbose) System.err.println(verb);
oldFile = newFile;
! if (verb.equals("delete")) {
! Matcher version = VERSION.matcher(newNote);
! version.find();
! oldNote = "#" + (Long.parseLong(version.group(1)) - 1);
newNote = epoch;
file = p4print("//" + oldFile + oldNote);
} else { // add or branch
--- 131,140 ----
newFile = m.group(1);
newNote = m.group(2);
verb = m.group(3);
oldFile = newFile;
! if ("delete".equals(verb)) {
! (m = VERSION.matcher(newNote)).find();
! oldNote = "#" + (Long.parseLong(m.group(1)) - 1);
newNote = epoch;
file = p4print("//" + oldFile + oldNote);
} else { // add or branch
***************
*** 144,150 ****
out.write("--- " + oldFile + oldNote + "\n");
out.write("+++ " + newFile + newNote + "\n");
String prefix;
! if (verb.equals("delete")) {
out.write("@@ -1" + lines + " +0,0 @@\n");
prefix = "-";
} else { // add or branch
--- 150,156 ----
out.write("--- " + oldFile + oldNote + "\n");
out.write("+++ " + newFile + newNote + "\n");
String prefix;
! if ("delete".equals(verb)) {
out.write("@@ -1" + lines + " +0,0 @@\n");
prefix = "-";
} else { // add or branch
***************
*** 165,171 ****
oldFile = null;
}
! private List p4print(String name) throws IOException {
CommandLine cmd = (new CommandLine(options.getProperty("p", "p4 print -q"))).append(name);
// Sadly, executing `p4 print` will consume some input.
// Which is one reason not to emit files immediately
--- 171,177 ----
oldFile = null;
}
! protected List p4print(String name) throws IOException {
CommandLine cmd = (new CommandLine(options.getProperty("p", "p4 print -q"))).append(name);
// Sadly, executing `p4 print` will consume some input.
// Which is one reason not to emit files immediately
***************
*** 173,198 ****
ProcessInputStream p = new ProcessInputStream(cmd.exec());
List file = (new LineReader(p)).readList();
if (p.exitValue() != 0) {
! System.err.println("exit " + p.exitValue() + " from " + cmd);
}
return file;
}
- protected UnixStyleFilter filter;
- protected Properties options;
- protected boolean verbose;
- protected Writer out;
-
- private p4d2p(UnixStyleFilter filter, Writer out) {
- this.filter = filter;
- this.options = filter.getOptions();
- this.verbose = (options.getProperty("v") != null);
- this.out = out;
- }
-
- private static DateFormat timeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z"); // ISO 8601
- private static final String epoch = timeFormat.format(new Date(0));
-
- private String now = timeFormat.format(new Date());
-
}
--- 179,187 ----
ProcessInputStream p = new ProcessInputStream(cmd.exec());
List file = (new LineReader(p)).readList();
if (p.exitValue() != 0) {
! command.writeError("exit " + p.exitValue() + " from " + cmd + "\n");
}
return file;
}
}
Index: //users/jkristian/lib/UnixCommandResources.properties
--- users/jkristian/lib/UnixCommandResources.properties 1970-01-01 00:00:00Z
+++ users/jkristian/lib/UnixCommandResources.properties #1
@@ -0,0 +1,2 @@
+usage: usage: {0}
+rename: can''t move {0} to {1}
Index: //users/jkristian/lib/UnixStyleFilterResources.properties
--- users/jkristian/lib/UnixStyleFilterResources.properties #1
+++ users/jkristian/lib/UnixStyleFilterResources.properties 1970-01-01 00:00:00Z
@@ -1,2 +0,0 @@
-usage: usage: {0}
-rename: can''t move {0} to {1}
Index: //users/jkristian/src/UnixCommand.java
--- users/jkristian/src/UnixCommand.java 1970-01-01 00:00:00Z
+++ users/jkristian/src/UnixCommand.java #1
@@ -0,0 +1,250 @@
+import gnu.getopt.Getopt;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FilterInputStream;
+import java.io.FilterOutputStream;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.PushbackReader;
+import java.io.Reader;
+import java.io.Writer;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.Locale;
+import java.util.List;
+import java.util.Properties;
+import java.util.ResourceBundle;
+
+class UnixCommand {
+
+ public UnixCommand(Class command, String options, String[] ARGV) {
+ this.command = command;
+ String commandName = command.getName();
+ this.resourceBundleName = commandName + "Resources";
+ Getopt g = new Getopt(commandName, ARGV, options);
+ {
+ boolean error = false;
+ for (int c; (c = g.getopt()) != -1; ) {
+ // System.err.println("option " + (char)c);
+ if (c == '?') {
+ error = true;
+ } else {
+ this.options.put((char)c + "",
+ (options.indexOf((char)c + ":") < 0) ? "1" :
+ ((g.getOptarg() == null) ? "" : g.getOptarg()));
+ }
+ }
+ if (error) {
+ try {
+ writeError(getUsage());
+ } catch(IOException ignored) {}
+ exit(1);
+ }
+ }
+ for (int i = g.getOptind(); i < ARGV.length; ++i) {
+ fileNames.add(ARGV[i]);
+ }
+ if (fileNames.isEmpty()) {
+ fileNames.add(STDIN_NAME);
+ }
+ }
+
+ public void exit(int status) {
+ try {
+ flush();
+ } catch(IOException ignored) {}
+ Runtime.getRuntime().exit(1);
+ }
+
+ public static final String STDIN_NAME = "-";
+
+ protected Class command;
+ protected Properties options = new Properties();
+ private Locale locale;
+ private String resourceBundleName;
+ protected String backupFileSuffix = null;
+ protected List fileNames = new ArrayList();
+ protected SteerableInputStream inputStream = new SteerableInputStream(null);
+ protected PushbackReader inputReader;
+ protected LineReader inputLineReader;
+ protected SteerableOutputStream outputStream = new SteerableOutputStream(System.out);
+ protected Writer outputWriter;
+ protected Writer errorWriter;
+
+ protected static class SteerableInputStream extends FilterInputStream {
+ public SteerableInputStream(InputStream in) { super(in); }
+ public void setInput(InputStream in) { this.in = in; }
+ }
+
+ protected static class SteerableOutputStream extends FilterOutputStream {
+ public SteerableOutputStream(OutputStream out) { super(out); }
+ public void setOutput(OutputStream out) { this.out = out; }
+ }
+
+ public Properties getOptions() {
+ return options;
+ }
+
+ public Class getCommand() {
+ return command;
+ }
+
+ public String getResourceBundleName() {
+ return resourceBundleName;
+ }
+
+ public void setResourceBundleName(String name) {
+ resourceBundleName = name;
+ }
+
+ public Locale getLocale() {
+ if (locale == null) {
+ setLocale(Locale.getDefault());
+ }
+ return locale;
+ }
+
+ public void setLocale(Locale locale) {
+ this.locale = locale;
+ }
+
+ public ResourceBundle getResourceBundle()
+ {
+ return ResourceBundle.getBundle(getResourceBundleName(), getLocale(), command.getClassLoader());
+ }
+
+ public String getResource(String name)
+ {
+ return getResourceBundle().getString(name);
+ }
+
+ public void setEditInPlace(String suffix)
+ {
+ this.backupFileSuffix = (suffix == null || suffix.length() > 0) ? suffix : "~";
+ }
+
+ public boolean getFile() throws IOException {
+ if (fileNames.isEmpty()) return false;
+ String fileName = (String)(fileNames.remove(0));
+ if (fileName.equals(STDIN_NAME)) {
+ inputStream.setInput(System.in);
+ outputStream.setOutput(System.out);
+
+ } else if (backupFileSuffix == null) {
+ inputStream.setInput(new FileInputStream(fileName));
+ outputStream.setOutput(System.out);
+
+ } else { // edit in place
+ File inputFile = new File(fileName + backupFileSuffix);
+ File outputFile = new File(fileName);
+ inputFile.delete();
+ if ( ! outputFile.renameTo(inputFile)) {
+ throw new IOException(MessageFormat.format(getMessage("rename"),
+ new String[]{outputFile.getPath(), inputFile.getPath()}));
+ }
+ inputStream.setInput(new FileInputStream(inputFile));
+ outputStream.setOutput(new FileOutputStream(outputFile));
+ }
+ return true;
+ }
+
+ public void flush() throws IOException
+ {
+ IOException ex = null;
+ if (outputWriter != null) try {
+ outputWriter.flush();
+ } catch(IOException e) {
+ ex = e;
+ }
+ if (outputStream != null) try {
+ outputStream.flush();
+ } catch(IOException e) {
+ ex = e;
+ }
+ if (errorWriter != null) try {
+ errorWriter.flush();
+ } catch(IOException e) {
+ ex = e;
+ }
+ System.err.flush();
+ if (ex != null) throw ex;
+ }
+
+ public PushbackReader getInputReader() throws IOException {
+ if (inputReader == null) {
+ inputReader = new PushbackReader(new InputStreamReader(inputStream));
+ }
+ return inputReader;
+ }
+
+ public LineReader getInputLineReader() throws IOException {
+ if (inputLineReader == null) {
+ inputLineReader = new LineReader(getInputReader());
+ }
+ return inputLineReader;
+ }
+
+ public Writer getOutputWriter() throws IOException {
+ if (outputWriter == null) {
+ outputWriter = new OutputStreamWriter(outputStream);
+ }
+ return outputWriter;
+ }
+
+ public Writer getErrorWriter() throws IOException {
+ if (errorWriter == null) {
+ errorWriter = new OutputStreamWriter(System.err);
+ }
+ return errorWriter;
+ }
+
+ public void writeError(String s) throws IOException {
+ Writer err = getErrorWriter();
+ err.write(s);
+ err.flush();
+ }
+
+ public void writeError(Object o) throws IOException {
+ writeError(o + "");
+ }
+
+ public String getUsage() {
+ String message = getMessage("usage");
+ return (message == null) ? getHelp().toString() :
+ MessageFormat.format(message,
+ new String[]{MessageFormat.format(getResourceBundle().getString("usage"),
+ new String[]{command.getName()})});
+ }
+
+ public StringBuffer getHelp() {
+ ResourceBundle resource = getResourceBundle();
+ StringBuffer message = new StringBuffer(resource.getString("help"));
+ replaceAll(message, "{usage}", resource.getString("usage"));
+ message.replace(0, message.length(),
+ MessageFormat.format(message.toString(),
+ new String[]{command.getName()}));
+ return message;
+ }
+
+ protected String getMessage(String name) {
+ return getResourceBundle(UnixCommand.class).getString(name);
+ }
+
+ protected ResourceBundle getResourceBundle(Class base) {
+ return ResourceBundle.getBundle(base.getName() + "Resources",
+ getLocale(),
+ base.getClassLoader());
+ }
+
+ protected static void replaceAll(StringBuffer s, String find, String replace)
+ {
+ for (int i = 0; (i = s.indexOf(find, i)) >= 0; i += replace.length()) {
+ s.replace(i, i + find.length(), replace);
+ }
+ }
+
+}
Index: //users/jkristian/src/UnixStyleFilter.java
--- users/jkristian/src/UnixStyleFilter.java #2
+++ users/jkristian/src/UnixStyleFilter.java 1970-01-01 00:00:00Z
@@ -1,250 +0,0 @@
-import gnu.getopt.Getopt;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FilterInputStream;
-import java.io.FilterOutputStream;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.PushbackReader;
-import java.io.Reader;
-import java.io.Writer;
-import java.text.MessageFormat;
-import java.util.ArrayList;
-import java.util.Locale;
-import java.util.List;
-import java.util.Properties;
-import java.util.ResourceBundle;
-
-class UnixStyleFilter {
-
- public UnixStyleFilter(Class command, String options, String[] ARGV) {
- this.command = command;
- String commandName = command.getName();
- this.resourceBundleName = commandName + "Resources";
- Getopt g = new Getopt(commandName, ARGV, options);
- {
- boolean error = false;
- for (int c; (c = g.getopt()) != -1; ) {
- // System.err.println("option " + (char)c);
- if (c == '?') {
- error = true;
- } else {
- this.options.put((char)c + "",
- (options.indexOf((char)c + ":") < 0) ? "1" :
- ((g.getOptarg() == null) ? "" : g.getOptarg()));
- }
- }
- if (error) {
- try {
- writeError(getUsage());
- } catch(IOException ignored) {}
- exit(1);
- }
- }
- for (int i = g.getOptind(); i < ARGV.length; ++i) {
- fileNames.add(ARGV[i]);
- }
- if (fileNames.isEmpty()) {
- fileNames.add(STDIN_NAME);
- }
- }
-
- public void exit(int status) {
- try {
- flush();
- } catch(IOException ignored) {}
- Runtime.getRuntime().exit(1);
- }
-
- public static final String STDIN_NAME = "-";
-
- protected Class command;
- protected Properties options = new Properties();
- private Locale locale;
- private String resourceBundleName;
- protected String backupFileSuffix = null;
- protected List fileNames = new ArrayList();
- protected SteerableInputStream inputStream = new SteerableInputStream(null);
- protected PushbackReader inputReader;
- protected LineReader inputLineReader;
- protected SteerableOutputStream outputStream = new SteerableOutputStream(System.out);
- protected Writer outputWriter;
- protected Writer errorWriter;
-
- protected static class SteerableInputStream extends FilterInputStream {
- public SteerableInputStream(InputStream in) { super(in); }
- public void setInput(InputStream in) { this.in = in; }
- }
-
- protected static class SteerableOutputStream extends FilterOutputStream {
- public SteerableOutputStream(OutputStream out) { super(out); }
- public void setOutput(OutputStream out) { this.out = out; }
- }
-
- public Properties getOptions() {
- return options;
- }
-
- public Class getCommand() {
- return command;
- }
-
- public String getResourceBundleName() {
- return resourceBundleName;
- }
-
- public void setResourceBundleName(String name) {
- resourceBundleName = name;
- }
-
- public Locale getLocale() {
- if (locale == null) {
- setLocale(Locale.getDefault());
- }
- return locale;
- }
-
- public void setLocale(Locale locale) {
- this.locale = locale;
- }
-
- public ResourceBundle getResourceBundle()
- {
- return ResourceBundle.getBundle(getResourceBundleName(), getLocale(), command.getClassLoader());
- }
-
- public String getResource(String name)
- {
- return getResourceBundle().getString(name);
- }
-
- public void setEditInPlace(String suffix)
- {
- this.backupFileSuffix = (suffix == null || suffix.length() > 0) ? suffix : "~";
- }
-
- public boolean getFile() throws IOException {
- if (fileNames.isEmpty()) return false;
- String fileName = (String)(fileNames.remove(0));
- if (fileName.equals(STDIN_NAME)) {
- inputStream.setInput(System.in);
- outputStream.setOutput(System.out);
-
- } else if (backupFileSuffix == null) {
- inputStream.setInput(new FileInputStream(fileName));
- outputStream.setOutput(System.out);
-
- } else { // edit in place
- File inputFile = new File(fileName + backupFileSuffix);
- File outputFile = new File(fileName);
- inputFile.delete();
- if ( ! outputFile.renameTo(inputFile)) {
- throw new IOException(MessageFormat.format(getMessage("rename"),
- new String[]{outputFile.getPath(), inputFile.getPath()}));
- }
- inputStream.setInput(new FileInputStream(inputFile));
- outputStream.setOutput(new FileOutputStream(outputFile));
- }
- return true;
- }
-
- public void flush() throws IOException
- {
- IOException ex = null;
- if (outputWriter != null) try {
- outputWriter.flush();
- } catch(IOException e) {
- ex = e;
- }
- if (outputStream != null) try {
- outputStream.flush();
- } catch(IOException e) {
- ex = e;
- }
- if (errorWriter != null) try {
- errorWriter.flush();
- } catch(IOException e) {
- ex = e;
- }
- System.err.flush();
- if (ex != null) throw ex;
- }
-
- public PushbackReader getInputReader() throws IOException {
- if (inputReader == null) {
- inputReader = new PushbackReader(new InputStreamReader(inputStream));
- }
- return inputReader;
- }
-
- public LineReader getInputLineReader() throws IOException {
- if (inputLineReader == null) {
- inputLineReader = new LineReader(getInputReader());
- }
- return inputLineReader;
- }
-
- public Writer getOutputWriter() throws IOException {
- if (outputWriter == null) {
- outputWriter = new OutputStreamWriter(outputStream);
- }
- return outputWriter;
- }
-
- public Writer getErrorWriter() throws IOException {
- if (errorWriter == null) {
- errorWriter = new OutputStreamWriter(System.err);
- }
- return errorWriter;
- }
-
- public void writeError(String s) throws IOException {
- Writer err = getErrorWriter();
- err.write(s);
- err.flush();
- }
-
- public void writeError(Object o) throws IOException {
- writeError(o + "");
- }
-
- public String getUsage() {
- String message = getMessage("usage");
- return (message == null) ? getHelp().toString() :
- MessageFormat.format(message,
- new String[]{MessageFormat.format(getResourceBundle().getString("usage"),
- new String[]{command.getName()})});
- }
-
- public StringBuffer getHelp() {
- ResourceBundle resource = getResourceBundle();
- StringBuffer message = new StringBuffer(resource.getString("help"));
- replaceAll(message, "{usage}", resource.getString("usage"));
- message.replace(0, message.length(),
- MessageFormat.format(message.toString(),
- new String[]{command.getName()}));
- return message;
- }
-
- protected String getMessage(String name) {
- return getResourceBundle(UnixStyleFilter.class).getString(name);
- }
-
- protected ResourceBundle getResourceBundle(Class base) {
- return ResourceBundle.getBundle(base.getName() + "Resources",
- getLocale(),
- base.getClassLoader());
- }
-
- protected static void replaceAll(StringBuffer s, String find, String replace)
- {
- for (int i = 0; (i = s.indexOf(find, i)) >= 0; i += replace.length()) {
- s.replace(i, i + find.length(), replace);
- }
- }
-
-}