org.jooq.DiffCLI Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
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* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* Apache-2.0 license and offer limited warranties, support, maintenance, and
* commercial database integrations.
*
* For more information, please visit: https://www.jooq.org/legal/licensing
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package org.jooq;
import org.jooq.conf.RenderKeywordCase;
import org.jooq.conf.RenderNameCase;
import org.jooq.conf.Settings;
import org.jooq.impl.DSL;
/**
* A command line interface to the Parser API, which works in a similar way as
* https://www.jooq.org/translate.
*
* @author Lukas Eder
*/
public final class DiffCLI {
public static final void main(String... args) throws Exception {
CLIUtil.main("https://www.jooq.org/doc/latest/manual/sql-building/schema-diff-cli/", () -> {
Args a;
Settings settings = new Settings();
DSLContext ctx;
a = parse(args);
settings(a, settings);
ctx = ctx(a, settings);
if (a.done) {}
else if (a.toDialect == null || a.sql1 == null || a.sql2 == null) {
System.out.println("Mandatory arguments: -T and -1, -2. Use -h for help");
throw new RuntimeException();
}
else
render(ctx, a);
});
}
private static final DSLContext ctx(Args a, Settings settings) {
return DSL.using(a.toDialect, settings);
}
private static final void settings(Args a, Settings settings) {
if (a.formatted)
settings.setRenderFormatted(true);
if (a.keywords != null)
settings.setRenderKeywordCase(a.keywords);
if (a.name != null)
settings.setRenderNameCase(a.name);
if (a.fromDialect != null)
settings.setParseDialect(a.fromDialect);
}
private static final void render(DSLContext ctx, Args a) {
String sql1 = a.sql1.trim();
String sql2 = a.sql2.trim();
System.out.println(ctx.render(ctx.meta(sql1).migrateTo(ctx.meta(sql2))));
}
private static final Args parse(String[] args) {
Args result = new Args();
argsLoop:
for (int i = 0; i < args.length; i++) {
if ("-f".equals(args[i]) || "--formatted".equals(args[i])) {
result.formatted = true;
}
else if ("-k".equals(args[i]) || "--keyword".equals(args[i])) {
try {
result.keywords = RenderKeywordCase.valueOf(args[++i].toUpperCase());
continue argsLoop;
}
catch (IllegalArgumentException e) {
invalid(args[i], RenderKeywordCase.class);
throw e;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -k / --keyword requires argument");
throw e;
}
}
else if ("-i".equals(args[i]) || "--identifier".equals(args[i])) {
try {
result.keywords = RenderKeywordCase.valueOf(args[++i].toUpperCase());
continue argsLoop;
}
catch (IllegalArgumentException e) {
invalid(args[i], RenderKeywordCase.class);
throw e;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -i / --identifier requires argument");
throw e;
}
}
else if ("-F".equals(args[i]) || "--from-dialect".equals(args[i])) {
try {
result.fromDialect = SQLDialect.valueOf(args[++i].toUpperCase());
continue argsLoop;
}
catch (IllegalArgumentException e) {
invalid(args[i], SQLDialect.class);
throw e;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -F / --from-dialect requires argument");
throw e;
}
}
// [#9144] -t maintained for backwards compatibility
else if ("-t".equals(args[i]) || "-T".equals(args[i]) || "--to-dialect".equals(args[i])) {
try {
result.toDialect = SQLDialect.valueOf(args[++i].toUpperCase());
continue argsLoop;
}
catch (IllegalArgumentException e) {
invalid(args[i], SQLDialect.class);
throw e;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -T / --to-dialect requires argument");
throw e;
}
}
else if ("-1".equals(args[i]) || "--sql1".equals(args[i])) {
try {
result.sql1 = args[++i];
continue argsLoop;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -1 / --sql1 requires argument");
throw e;
}
}
else if ("-2".equals(args[i]) || "--sql2".equals(args[i])) {
try {
result.sql2 = args[++i];
continue argsLoop;
}
catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Flag -2 / --sql2 requires argument");
throw e;
}
}
else if ("-h".equals(args[i]) || "--help".equals(args[i])) {
help();
result.done = true;
}
else {
System.out.println("Unknown flag: " + args[i] + ". Use -h or --help");
throw new RuntimeException();
}
}
return result;
}
private static final void invalid(String string, Class> type) {
System.out.println("Invalid " + type.getSimpleName() + ": " + string);
System.out.println("Possible values:");
for (Enum e : type.getEnumConstants())
System.out.println(" " + e.name());
}
private static final void help() {
System.out.println("Usage:");
System.out.println(" -f / --formatted Format output SQL");
System.out.println(" -h / --help Display this help");
System.out.println(" -k / --keyword Specify the output keyword case (org.jooq.conf.RenderKeywordCase)");
System.out.println(" -i / --identifier Specify the output identifier case (org.jooq.conf.RenderNameCase)");
System.out.println(" -F / --from-dialect Specify the input dialect (org.jooq.SQLDialect)");
System.out.println(" -T / --to-dialect Specify the output dialect (org.jooq.SQLDialect)");
System.out.println(" -1 / --sql1 Specify the input SQL string 1 (from SQL)");
System.out.println(" -2 / --sql2 Specify the input SQL string 2 (to SQL)");
}
public static final class Args {
String sql1;
String sql2;
RenderKeywordCase keywords = RenderKeywordCase.LOWER;
RenderNameCase name = RenderNameCase.LOWER;
SQLDialect toDialect = SQLDialect.DEFAULT;
SQLDialect fromDialect = SQLDialect.DEFAULT;
boolean formatted;
boolean done;
}
}