From 295efb7440831f4a7bc1ce017ab75cffd666782a Mon Sep 17 00:00:00 2001 From: Lukas Eder Date: Thu, 30 Jan 2020 15:36:38 +0100 Subject: [PATCH] [jOOQ/jOOQ#9624] Add a DiffCLI command line tool --- jOOQ/src/main/java/org/jooq/DiffCLI.java | 223 +++++++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 jOOQ/src/main/java/org/jooq/DiffCLI.java diff --git a/jOOQ/src/main/java/org/jooq/DiffCLI.java b/jOOQ/src/main/java/org/jooq/DiffCLI.java new file mode 100644 index 0000000000..c29de93fa8 --- /dev/null +++ b/jOOQ/src/main/java/org/jooq/DiffCLI.java @@ -0,0 +1,223 @@ +/* + * 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 + * + * http://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, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * 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 + * ASL 2.0 and offer limited warranties, support, maintenance, and commercial + * database integrations. + * + * For more information, please visit: http://www.jooq.org/licenses + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + * + */ +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 { + 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; + } +}