Implement isolated Build and Refresh with immutable leased snapshots

2026-11-12 09:28:25 +01:00
parent 85a75383a0
commit e97af99412
27 changed files with 2066 additions and 15 deletions
@@ -0,0 +1,78 @@
+package de.neitzel.fxdesigner.maven;
+
+import java.nio.file.*;
+import java.util.*;
+import org.apache.maven.execution.MavenSession;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugins.annotations.*;
+import org.apache.maven.project.MavenProject;
+
+/** Runs after package in Maven's process; no application class is loaded into a designer host. */
+@Mojo(name = "capture", requiresDependencyResolution = ResolutionScope.TEST, threadSafe = true)
+public final class CaptureMojo extends AbstractMojo {
+  @Parameter(defaultValue = "${project}", readonly = true, required = true)
+  private MavenProject project;
+
+  @Parameter(defaultValue = "${session}", readonly = true, required = true)
+  private MavenSession session;
+
+  @Parameter(property = "designer.captureDir", required = true)
+  private java.io.File directory;
+
+  public void execute() throws MojoExecutionException {
+    try {
+      var proof = new Properties();
+      try (var in =
+          Files.newInputStream(
+              directory.toPath().resolve(DependencyProof.id(project) + ".dependencies"))) {
+        proof.load(in);
+      }
+      DependencyProof.verify(proof);
+      var p = new Properties();
+      p.putAll(proof);
+      p.setProperty("format", "2");
+      p.setProperty("module", project.getBasedir().getCanonicalPath());
+      p.setProperty(
+          "coordinates",
+          project.getGroupId() + ":" + project.getArtifactId() + ":" + project.getVersion());
+      p.setProperty("packaging", project.getPackaging());
+      list(p, "runtime", project.getRuntimeClasspathElements());
+      list(p, "test", project.getTestClasspathElements());
+      var roots = new ArrayList<String>(project.getCompileSourceRoots());
+      roots.addAll(project.getTestCompileSourceRoots());
+      project.getResources().forEach(r -> roots.add(r.getDirectory()));
+      project.getTestResources().forEach(r -> roots.add(r.getDirectory()));
+      list(p, "sources", roots);
+      var dependencies = new ArrayList<String>();
+      for (var a : project.getArtifacts())
+        for (var other : session.getProjects())
+          if (a.getGroupId().equals(other.getGroupId())
+              && a.getArtifactId().equals(other.getArtifactId())
+              && a.getVersion().equals(other.getVersion()))
+            dependencies.add(other.getBasedir().getCanonicalPath());
+      list(p, "dependencies", dependencies);
+      list(p, "profiles", session.getRequest().getActiveProfiles());
+      Files.createDirectories(directory.toPath());
+      String id =
+          HexFormat.of()
+              .formatHex(
+                  java.security.MessageDigest.getInstance("SHA-256")
+                      .digest(
+                          project
+                              .getBasedir()
+                              .getCanonicalPath()
+                              .getBytes(java.nio.charset.StandardCharsets.UTF_8)));
+      try (var out = Files.newOutputStream(directory.toPath().resolve(id + ".properties"))) {
+        p.store(out, "Neitzel FX Designer effective Maven capture");
+      }
+    } catch (Exception e) {
+      throw new MojoExecutionException("Cannot capture effective Maven metadata", e);
+    }
+  }
+
+  private static void list(Properties p, String name, List<String> values) {
+    p.setProperty(name + ".count", Integer.toString(values.size()));
+    for (int i = 0; i < values.size(); i++) p.setProperty(name + "." + i, values.get(i));
+  }
+}
@@ -0,0 +1,29 @@
+package de.neitzel.fxdesigner.maven;
+
+import java.nio.file.*;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugins.annotations.*;
+import org.apache.maven.project.MavenProject;
+
+@Mojo(name = "dependencies", requiresDependencyResolution = ResolutionScope.TEST, threadSafe = true)
+public final class DependenciesMojo extends AbstractMojo {
+  @Parameter(defaultValue = "${project}", readonly = true, required = true)
+  private MavenProject project;
+
+  @Parameter(property = "designer.captureDir", required = true)
+  private java.io.File directory;
+
+  public void execute() throws MojoExecutionException {
+    try {
+      Files.createDirectories(directory.toPath());
+      try (var out =
+          Files.newOutputStream(
+              directory.toPath().resolve(DependencyProof.id(project) + ".dependencies"))) {
+        DependencyProof.capture(project).store(out, "Dependency identities before compilation");
+      }
+    } catch (Exception e) {
+      throw new MojoExecutionException("Cannot capture build dependency identities", e);
+    }
+  }
+}
@@ -0,0 +1,58 @@
+package de.neitzel.fxdesigner.maven;
+
+import java.nio.file.*;
+import java.util.*;
+import org.apache.maven.project.MavenProject;
+
+final class DependencyProof {
+  static String signature(Path path) throws Exception {
+    var a = Files.readAttributes(path, java.nio.file.attribute.BasicFileAttributes.class);
+    var hash = java.security.MessageDigest.getInstance("SHA-256");
+    try (var in = Files.newInputStream(path)) {
+      byte[] b = new byte[65536];
+      for (int n; (n = in.read(b)) != -1; ) hash.update(b, 0, n);
+    }
+    return HexFormat.of().formatHex(hash.digest())
+        + ":"
+        + a.size()
+        + ":"
+        + a.lastModifiedTime()
+        + ":"
+        + a.fileKey();
+  }
+
+  static Properties capture(MavenProject project) throws Exception {
+    var p = new Properties();
+    int n = 0;
+    for (var a : project.getArtifacts()) {
+      Path path = a.getFile().toPath().toRealPath();
+      if (!Files.isRegularFile(path))
+        throw new IllegalArgumentException("Dependency is not a packaged file: " + path);
+      p.setProperty("artifact." + n + ".path", path.toString());
+      p.setProperty("artifact." + n + ".coordinates", a.getId());
+      p.setProperty("artifact." + n + ".signature", signature(path));
+      n++;
+    }
+    p.setProperty("artifact.count", Integer.toString(n));
+    return p;
+  }
+
+  static String id(MavenProject project) throws Exception {
+    return HexFormat.of()
+        .formatHex(
+            java.security.MessageDigest.getInstance("SHA-256")
+                .digest(
+                    project
+                        .getBasedir()
+                        .getCanonicalPath()
+                        .getBytes(java.nio.charset.StandardCharsets.UTF_8)));
+  }
+
+  static void verify(Properties p) throws Exception {
+    int n = Integer.parseInt(p.getProperty("artifact.count"));
+    for (int i = 0; i < n; i++)
+      if (!signature(Path.of(p.getProperty("artifact." + i + ".path")))
+          .equals(p.getProperty("artifact." + i + ".signature")))
+        throw new IllegalStateException("Dependency changed during Maven build");
+  }
+}
@@ -0,0 +1,49 @@
+package de.neitzel.fxdesigner.maven;
+
+import java.nio.file.*;
+import java.util.*;
+import org.apache.maven.execution.MavenSession;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugins.annotations.*;
+
+/** Validates Maven's selected effective projects before any application lifecycle phase. */
+@Mojo(name = "plan", aggregator = true, threadSafe = true)
+public final class PlanMojo extends AbstractMojo {
+  @Parameter(defaultValue = "${session}", readonly = true, required = true)
+  private MavenSession session;
+
+  @Parameter(property = "designer.workspace", required = true)
+  private java.io.File workspace;
+
+  public void execute() throws MojoExecutionException {
+    try {
+      Path root = workspace.toPath().toRealPath();
+      var activeProfiles = new HashSet<String>();
+      for (var project : session.getProjects()) {
+        Path base = project.getBasedir().toPath().toRealPath();
+        if (!base.startsWith(root))
+          throw new IllegalArgumentException("Module outside isolated reactor");
+        var paths = new ArrayList<String>();
+        paths.add(project.getBuild().getDirectory());
+        paths.add(project.getBuild().getOutputDirectory());
+        paths.add(project.getBuild().getTestOutputDirectory());
+        paths.addAll(project.getCompileSourceRoots());
+        paths.addAll(project.getTestCompileSourceRoots());
+        project.getResources().forEach(r -> paths.add(r.getDirectory()));
+        project.getTestResources().forEach(r -> paths.add(r.getDirectory()));
+        for (String path : paths)
+          if (!Path.of(path).toAbsolutePath().normalize().startsWith(base))
+            throw new IllegalArgumentException(
+                "Effective source/output path outside module: " + path);
+        project.getActiveProfiles().forEach(p -> activeProfiles.add(p.getId()));
+        project.getInjectedProfileIds().values().forEach(activeProfiles::addAll);
+        getLog().info("Designer scope: " + root.relativize(base) + " (" + project.getId() + ")");
+      }
+      if (!activeProfiles.containsAll(session.getRequest().getActiveProfiles()))
+        throw new IllegalArgumentException("Requested Maven profile did not activate");
+    } catch (Exception e) {
+      throw new MojoExecutionException("Unsupported effective Maven build plan", e);
+    }
+  }
+}