Add EpicScript

Test for gitlab4j/gitlab4j-api#1199

Author: jmini

gitlab4j-test/EpicScript.java

@@ -0,0 +1,193 @@
+///usr/bin/env jbang "$0" "$@" ; exit $?
+
+//DEPS info.picocli:picocli:4.6.3
+//DEPS https://github.com/jmini/gitlab4j-api/commit/632279d454d90469be99d8f6059285e1a7524931
+//JAVA 17
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.concurrent.Callable;
+import java.util.Date;
+import java.util.List;
+import java.util.Properties;
+
+import org.gitlab4j.api.GitLabApi;
+import org.gitlab4j.api.models.*;
+
+import picocli.CommandLine;
+import picocli.CommandLine.Command;
+import picocli.CommandLine.Option;
+import picocli.CommandLine.Parameters;
+
+@Command(name = "EpicScript", mixinStandardHelpOptions = true, version = "EpicScript 0.1", description = "Tests for GitLab4J")
+public class EpicScript implements Callable<Integer> {
+
+    private static final String CONFIG_FILE_INITIAL_CONTENT = """
+            GITLAB_URL=https://gitlab.com
+            GITLAB_AUTH_VALUE=
+            """;
+
+    @Parameters(index = "0", description = "action to execute", defaultValue = "GET_EPIC")
+    private Action action;
+
+    @Option(names = { "-g", "--group" }, description = "group")
+    private String group;
+
+    @Option(names = { "-e", "--epic" }, description = "epic iid")
+    private Long epicIid;
+
+    @Option(names = { "-d", "--description" }, description = "epic description")
+    private String description;
+
+    @Option(names = { "-t", "--title" }, description = "epic title")
+    private String title;
+
+    @Option(names = { "-c", "--config" }, description = "configuration file location")
+    String configFile;
+
+    @Option(names = { "-v", "--verbose" }, description = "log http trafic")
+    Boolean logHttp;
+
+    private static enum Action {
+        GROUP_EPICS, GET_EPIC, CREATE_EPIC, CLOSE_EPIC, REOPEN_EPIC
+    }
+
+    @Override
+    public Integer call() throws Exception {
+        Path file;
+        if (configFile != null) {
+            file = Paths.get(configFile);
+        } else {
+            file = configFile(Paths.get(""));
+        }
+        System.out.println("Reading config: " + file.toAbsolutePath());
+        final Properties prop = configProperties(file);
+        final String gitLabUrl = readProperty(prop, "GITLAB_URL", "https://gitlab.com");
+        final String gitLabAuthValue = readProperty(prop, "GITLAB_AUTH_VALUE");
+
+        try (GitLabApi gitLabApi = createGitLabApi(gitLabUrl, gitLabAuthValue)) {
+            switch (action) {
+            case GROUP_EPICS:
+                ensureExists(group, "group");
+                List<Epic> epics = gitLabApi.getEpicsApi()
+                        .getEpics(idOrPath(group));
+                System.out.println(epics);
+                break;
+            case GET_EPIC:
+                ensureExists(group, "group");
+                ensureExists(epicIid, "epic");
+                Epic epic = gitLabApi.getEpicsApi()
+                        .getEpic(idOrPath(group), epicIid);
+                System.out.println(epic);
+                break;
+            case CREATE_EPIC:
+                ensureExists(group, "group");
+                ensureExists(title, "title");
+                ensureExists(description, "description");
+                String labels = null;
+                Date startDate = null;
+                Date endDate = null;
+                Date createdAt = null;
+                Epic createdEpic = gitLabApi.getEpicsApi()
+                        .createEpic(idOrPath(group), title, labels, description, startDate, endDate, createdAt);
+                System.out.println(createdEpic);
+                break;
+            case CLOSE_EPIC:
+                ensureExists(group, "group");
+                ensureExists(epicIid, "epic");
+                throw new IllegalStateException("not implemented");
+                // Epic closedEpic = gitLabApi.getEpicsApi()
+                //         .closeEpic(idOrPath(group), epicIid);
+                // System.out.println(closedEpic);
+                // break;
+            case REOPEN_EPIC:
+                ensureExists(group, "group");
+                ensureExists(epicIid, "epic");
+                throw new IllegalStateException("not implemented");
+                // Epic reopenedEpic = gitLabApi.getEpicsApi()
+                //         .reopenEpic(idOrPath(group), epicIid);
+                // System.out.println(reopenedEpic);
+                // break;
+            default:
+                throw new IllegalArgumentException("Unexpected value: " + action);
+            }
+        }
+        return 0;
+    }
+
+    private GitLabApi createGitLabApi(String gitLabUrl, String gitLabAuthValue) {
+        if (logHttp != null && logHttp) {
+            return new GitLabApi(gitLabUrl, gitLabAuthValue)
+                .withRequestResponseLogging(java.util.logging.Level.INFO) ;
+        }
+        return new GitLabApi(gitLabUrl, gitLabAuthValue);
+    }
+
+    private void ensureExists(Object value, String optionName) {
+        if (value == null) {
+            throw new IllegalStateException("--" + optionName + " must be set");
+        }
+    }
+
+    private IterationFilter existingOrNew(IterationFilter existing) {
+        if (existing != null) {
+            return existing;
+        }
+        return new IterationFilter();
+    }
+
+    private Object idOrPath(String value) {
+        if (value.matches("[0-9]+")) {
+            return Long.valueOf(value);
+        }
+        return value;
+    }
+
+    public static Properties configProperties(final Path configFile) {
+        try (InputStream is = new FileInputStream(configFile.toFile())) {
+            final Properties properties = new Properties();
+            properties.load(is);
+            return properties;
+        } catch (final IOException e) {
+            throw new IllegalStateException("Can not read config file", e);
+        }
+    }
+
+    public static Path configFile(final Path root) {
+        final Path configFile = root.toAbsolutePath()
+                .resolve("gitlab-config.properties");
+        if (!Files.isRegularFile(configFile)) {
+            try {
+                Files.writeString(configFile, CONFIG_FILE_INITIAL_CONTENT);
+                throw new IllegalStateException(String.format("Configuration file '%s' does not exist. An empty configuration file was created", configFile.toAbsolutePath()));
+            } catch (final IOException e) {
+                throw new IllegalStateException("Can not write initial config file", e);
+            }
+        }
+        return configFile;
+    }
+
+    public static String readProperty(final Properties p, final String key) {
+        if (!p.containsKey(key)) {
+            throw new IllegalStateException(String.format("Configuration file does not contains key '%s'", key));
+        }
+        final String value = p.getProperty(key);
+        if (value == null || value.isBlank()) {
+            throw new IllegalStateException(String.format("Key '%s' is not defined in configuration file", key));
+        }
+        return value;
+    }
+
+    public static String readProperty(final Properties p, final String key, final String defaultValue) {
+        return p.getProperty(key, defaultValue);
+    }
+
+    public static void main(final String... args) {
+        final int exitCode = new CommandLine(new EpicScript()).execute(args);
+        System.exit(exitCode);
+    }
+}