Allow PDF generation with modern Libre/Open Office with fallback to old way

h2/src/tools/org/h2/build/Build.java

@@ -369,12 +369,25 @@ public class Build extends BuildBase {
         delete(files("bin").keep("*.jar"));
         jar();
         docs();
+        boolean pdfReady = false;
+        try {
+            if (exec("soffice", args("--convert-to", "pdf", "--outdir", "docs/html", "docs/html/onePage.html")) == 0) {
+                File f = new File("docs/html/onePage.pdf");
+                if (f.exists() && f.renameTo(new File("docs/h2.pdf"))) {
+                    pdfReady = true;
+                }
+            }
+        } catch (Exception ex) {
+        }
+        if (!pdfReady) {
+            // Old way
             try {
                 exec("soffice", args("-invisible", "macro:///Standard.Module1.H2Pdf"));
                 copy("docs", files("../h2web/h2.pdf"), "../h2web");
             } catch (Exception e) {
                 print("OpenOffice is not available: " + e);
             }
+        }
         delete("docs/html/onePage.html");
         FileList files = files("../h2").keep("../h2/build.*");
         files.addAll(files("../h2/bin").keep("../h2/bin/h2*"));

h2/src/tools/org/h2/build/doc/dictionary.txt

@@ -757,4 +757,4 @@ chittanoor carrot
 
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-unconditionally coco aren eecccc decimals charsets zzbb lsb msb usecount
+unconditionally coco aren eecccc decimals charsets zzbb lsb msb usecount outdir