[dev] add extract commit from diff

atms-gen/src/test/java/com/neo/ExtractCommitFromDiff.java

+package com.neo;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class ExtractCommitFromDiff {
+    public static final String LINE_SPLITER = "\r\n";
+
+    public static void main(String[] args) {
+        try (BufferedReader burReader = new BufferedReader(new InputStreamReader(new FileInputStream(new File(
+                "C:\\Users\\Neo Wang\\workspace\\atms\\atms-gen\\target\\test-classes\\diff.txt"))))) {
+            String line = null;
+            List<Diff> diffs = new ArrayList<>();
+            Diff diff = null;
+
+            while ((line = burReader.readLine()) != null) {
+                if (line.contains("diff --git")) {
+                    if (diff != null) diffs.add(diff);
+
+                    diff = new Diff();
+                    diff.fileName = line.substring(line.lastIndexOf("/atms-dao") + 1, line.length());
+                } else if (line.startsWith("+") || line.startsWith("-")) {
+                    if (line.startsWith("++") || line.startsWith("--")) continue;
+                    if (diff == null) {
+                        System.out.println(line);
+                        throw new RuntimeException("not init");
+                    }
+                    diff.diffLine.add(line);
+                }
+            }
+
+            List<Diff> orderDiffs = diffs.stream().sorted(Comparator.comparing(Diff::length)).collect(Collectors.toList());
+
+            orderDiffs.forEach(m -> {
+                if (m.fileName.contains("Example") ) {
+                    System.out.println(m.fileName);
+                }
+            });
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    static class Diff {
+        String fileName;
+        List<String> diffLine = new ArrayList<>();
+
+        @Override
+        public String toString() {
+            StringBuilder builder = new StringBuilder(fileName);
+            builder.append(LINE_SPLITER);
+            diffLine.forEach(m -> {
+                if (!m.contains("*") && !m.contains("deleteByPrimaryKey") && !m.contains("selectByPrimaryKey")
+                        && !m.contains("import") && m.trim().length() > 1)
+                    builder.append(m).append(LINE_SPLITER);
+            });
+
+            return builder.toString();
+        }
+
+        public int length() {
+            return diffLine.stream().filter(m -> {
+                return !m.contains("*") && !m.contains("deleteByPrimaryKey") && !m.contains("selectByPrimaryKey")
+                        && !m.contains("import") && m.trim().length() > 1;
+            }).collect(Collectors.toList()).size();
+        }
+    }
+}
+