Add Makefile; CI: Remove Circle/Travis, add GitHub Actions

.github/workflows/build-android-project.yml

@@ -0,0 +1,69 @@
+name: "CI"
+
+on: [push, pull_request_target]
+
+jobs:
+  build:
+    if: "!contains(github.event.head_commit.message, 'ci skip') && (!contains(github.event_name, 'pull_request') || (contains(github.event_name, 'pull_request') && github.event.pull_request.head.repo.full_name != github.repository))"
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: "Checkout: Code"
+      uses: actions/checkout@v2
+
+
+    - name: "Checkout: Code (PR)"
+      uses: actions/checkout@v2
+      if: "contains(github.event_name, 'pull_request')"
+      with:
+        ref: ${{github.event.pull_request.head.ref}}
+        repository: ${{github.event.pull_request.head.repo.full_name}}
+
+    - name: "Setup: Java"
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+
+    - name: "Cache: Gradle"
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.gradle
+          .gradle
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('gradle/wrapper/gradle-wrapper.*') }}
+
+    - name: "Build: Project with make"
+      run: make clean all
+
+    - name: "Build: List dist files"
+      if: always()
+      run: find dist -type f -maxdepth 2
+
+    - name: "Artifacts: All"
+      if: always()
+      uses: actions/upload-artifact@v2.2.1
+      with:
+        name: "all"
+        path: dist
+        retention-days: 5
+
+    - name: "Artifacts: Android APK"
+      uses: actions/upload-artifact@v2.2.1
+      with:
+        name: "android-apk"
+        path: |
+          dist/*.apk
+
+    - name: "Test: JUnit report"
+      if: always()
+      uses: mikepenz/action-junit-report@v1
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        report_paths: 'dist/tests/TEST-*.xml'
+        check_name: "JUnit"
+
+    - name: "Test: Android Lint"
+      if: always()
+      uses: yutailang0119/action-android-lint@v1.0.2
+      with:
+        xml_path: 'dist/lint/lint-results-flavorDefaultDebug.xml'

.gitignore

@@ -36,6 +36,7 @@ tmp/
 ### Gradle ###
 .gradle
 build/
+dist/
 gradle-app.setting
 
 # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)

Makefile

@@ -0,0 +1,55 @@
+# License of Makefile: Public Domain / CC0
+.PHONY: $(shell sed -n -e '/^$$/ { n ; /^[^ .\#][^ ]*:/ { s/:.*$$// ; p ; } ; }' $(MAKEFILE_LIST))
+.NOTPARALLEL: clean
+.DEFAULT_GOAL := all
+
+env-%:
+	@: $(if ${${*}},,$(error Environment variable $* not set))
+####################################################################################
+
+DIST_DIR = dist
+MOVE = mv
+
+all: $(DIST_DIR) lint test build
+
+####################################################################################
+
+$(DIST_DIR):
+	mkdir -p ${DIST_DIR}
+
+.NOTPARALLEL: gradle gradle-check-error
+gradle: env-ANDROID_SDK_ROOT
+	mkdir -p $(DIST_DIR)/log/
+	chmod +x gradlew
+	./gradlew --no-daemon --parallel --stacktrace $A  2>&1 | tee "$(DIST_DIR)/log/gradle.log"
+	@echo "-----------------------------------------------------------------------------------"
+
+gradle-check-error:
+	mv  "$(DIST_DIR)/log/gradle.log" "$(DIST_DIR)/log/gradle$A.log"
+	cat "$(DIST_DIR)/log/gradle$A.log" | grep "BUILD " | tail -n1 | grep -q "BUILD SUCCESSFUL in"
+
+build:
+	rm -f $(DIST_DIR)/*.apk
+	$(MAKE) A="clean assembleFlavorAtest -x lint" gradle
+	find app -type f -iname '*.apk' | grep -v 'unsigned.apk' | xargs cp -R -t $(DIST_DIR)/
+	$(MAKE) A="-build" gradle-check-error
+
+lint:
+	rm -Rf $(DIST_DIR)/lint
+	mkdir -p $(DIST_DIR)/lint/
+	$(MAKE) A="lintFlavorDefaultDebug" gradle
+	find app -type f -iname 'lint-results-*' | xargs cp -R -t $(DIST_DIR)/lint
+	$(MAKE) A="-lint" gradle-check-error
+
+test:
+	rm -Rf $(DIST_DIR)/tests
+	$(MAKE) A="testFlavorDefaultDebugUnitTest -x lint" gradle
+	mkdir -p app/build/test-results/testFlavorDefaultDebugUnitTest && echo 'PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPHRlc3RzdWl0ZSBuYW1lPSJkdW1teSIgdGVzdHM9IjEiIHNraXBwZWQ9IjAiIGZhaWx1cmVzPSIwIiBlcnJvcnM9IjAiIHRpbWVzdGFtcD0iMjAyMC0xMi0wOFQwMDowMDowMCIgaG9zdG5hbWU9ImxvY2FsaG9zdCIgdGltZT0iMC4wMSI+CiAgPHByb3BlcnRpZXMvPgogIDx0ZXN0Y2FzZSBuYW1lPSJkdW1teSIgY2xhc3NuYW1lPSJkdW1teSIgdGltZT0iMC4wMSIvPgogIDxzeXN0ZW0tb3V0PjwhW0NEQVRBW11dPjwvc3lzdGVtLW91dD4KICA8c3lzdGVtLWVycj48IVtDREFUQVtdXT48L3N5c3RlbS1lcnI+CjwvdGVzdHN1aXRlPgo=' | base64 -d > 'app/build/test-results/testFlavorDefaultDebugUnitTest/TEST-dummy.xml'
+	find app -type d -iname 'testFlavorDefaultDebugUnitTest' | xargs cp -R -t $(DIST_DIR)/
+	mv ${DIST_DIR}/testFlavorDefaultDebugUnitTest $(DIST_DIR)/tests
+	$(MAKE) A="-test" gradle-check-error
+
+clean:
+	$(MAKE) A="clean" gradle
+	rm -Rf $(DIST_DIR) app/build app/flavor*
+	$(MAKE) $(DIST_DIR)

app/build.gradle

@@ -21,6 +21,7 @@ android {
         buildConfigField "boolean", "IS_TEST_BUILD", "false"
         buildConfigField "boolean", "IS_GPLAY_BUILD", "false"
         buildConfigField "String[]", "DETECTED_ANDROID_LOCALES", "${findUsedAndroidLocales()}"
+        buildConfigField "String", "BUILD_DATE", "\"${getBuildDate()}\""
         buildConfigField "String", "GITHASH", "\"${getGitHash()}\""
         setProperty("archivesBaseName", applicationId + "-v" + versionCode + "-" + versionName)
     }
@@ -89,8 +90,7 @@ android {
     }
 
     lintOptions {
-        disable 'MissingTranslation'
-        disable 'InvalidPackage'
+        disable 'MissingTranslation', 'InvalidPackage', 'ObsoleteLintCustomCheck', 'DefaultLocale', 'UnusedAttribute', 'VectorRaster', 'InflateParams', 'IconLocation', 'UnusedResources', 'TypographyEllipsis'
         abortOnError false
     }
 }
@@ -118,9 +118,10 @@ dependencies {
     implementation 'commons-io:commons-io:2.6'
     implementation "info.guardianproject.netcipher:netcipher:${version_library_netcipher}"
     implementation "info.guardianproject.netcipher:netcipher-webkit:${version_library_netcipher}"
+    //noinspection AnnotationProcessorOnCompilePath
     implementation "com.jakewharton:butterknife:${version_library_butterknife}"
     if (enable_plugin_kotlin) {
-        implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$version_plugin_kotlin"
+        implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:${version_plugin_kotlin}"
     }
 
     // Processors

app/src/main/java/net/gsantner/opoc/format/markdown/SimpleMarkdownParser.java

@@ -125,6 +125,20 @@ public class SimpleMarkdownParser {
             return text;
         }
     };
+    public final static SmpFilter FILTER_H_TO_SUP = new SmpFilter() {
+        @Override
+        public String filter(String text) {
+            text = text
+                    .replace("<h1>", "<sup><sup><sup>")
+                    .replace("</h1>", "</sup></sup></sup>")
+                    .replace("<h2>", "<sup><sup>")
+                    .replace("</h2>", "</sup></sup>")
+                    .replace("<h3>", "<sup>")
+                    .replace("</h3>", "</sup>")
+            ;
+            return text;
+        }
+    };
     public final static SmpFilter FILTER_NONE = new SmpFilter() {
         @Override
         public String filter(String text) {

app/src/main/java/net/gsantner/opoc/ui/SearchOrCustomTextDialog.java

@@ -11,12 +11,14 @@
 package net.gsantner.opoc.ui;
 
 import android.app.Activity;
+import android.content.Context;
 import android.content.res.ColorStateList;
 import android.graphics.Color;
 import android.graphics.Typeface;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.support.annotation.ColorInt;
+import android.support.annotation.LayoutRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.StringRes;
@@ -24,10 +26,14 @@ import android.support.design.widget.Snackbar;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.AppCompatEditText;
 import android.text.Editable;
+import android.text.Spannable;
+import android.text.SpannableString;
 import android.text.TextUtils;
 import android.text.TextWatcher;
+import android.util.Pair;
 import android.view.Gravity;
 import android.view.KeyEvent;
+import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
@@ -58,16 +64,23 @@ public class SearchOrCustomTextDialog {
 
     public static class DialogOptions {
         public Callback.a1<String> callback;
-        public List<? extends CharSequence> data = new ArrayList<>();
-        public List<? extends CharSequence> highlightData = new ArrayList<>();
-        public List<Integer> iconsForData = new ArrayList<>();
+        public Callback.a2<String, Integer> withPositionCallback;
+        public List<? extends CharSequence> data;
+        public List<? extends CharSequence> highlightData;
+        public List<Integer> iconsForData;
         public String messageText = "";
+        public String defaultText = "";
         public boolean isSearchEnabled = true;
         public boolean isDarkDialog = false;
         public int dialogWidthDp = WindowManager.LayoutParams.MATCH_PARENT;
         public int dialogHeightDp = WindowManager.LayoutParams.WRAP_CONTENT;
         public int gravity = Gravity.NO_GRAVITY;
         public int searchInputType = 0;
+        public boolean searchIsRegex = false;
+        public Callback.a1<Spannable> highlighter;
+        public String extraFilter = null;
+
+        public Callback.a0 neutralButtonCallback = null;
 
         @ColorInt
         public int textColor = 0xFF000000;
@@ -76,29 +89,47 @@ public class SearchOrCustomTextDialog {
         @StringRes
         public int cancelButtonText = android.R.string.cancel;
         @StringRes
+        public int neutralButtonText = 0;
+        @StringRes
         public int okButtonText = android.R.string.ok;
         @StringRes
-        public int titleText = android.R.string.untitled;
+        public int titleText = 0;
         @StringRes
         public int searchHintText = android.R.string.search_go;
     }
 
-    public static void showMultiChoiceDialogWithSearchFilterUI(final Activity activity, final DialogOptions dopt) {
-        final List<CharSequence> allItems = new ArrayList<>(dopt.data);
-        final List<CharSequence> filteredItems = new ArrayList<>(allItems);
-        final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity, dopt.isDarkDialog
-                ? android.support.v7.appcompat.R.style.Theme_AppCompat_Dialog
-                : android.support.v7.appcompat.R.style.Theme_AppCompat_Light_Dialog
-        );
+    private static class WithPositionAdapter extends ArrayAdapter<Pair<String, Integer>> {
+
+        final LayoutInflater mInflater;
+        final @LayoutRes
+        int mLayout;
+        final DialogOptions dopt;
+        final List<Pair<String, Integer>> filteredItems;
+        final Pattern extraPattern;
+
+        WithPositionAdapter(Context context, @LayoutRes int layout, List<Pair<String, Integer>> filteredItems, DialogOptions dopt) {
+            super(context, layout, filteredItems);
+            mInflater = LayoutInflater.from(context);
+            mLayout = layout;
+            this.dopt = dopt;
+            this.filteredItems = filteredItems;
+            extraPattern = dopt.extraFilter == null ? null : Pattern.compile(dopt.extraFilter);
+        }
 
-        final ArrayAdapter<CharSequence> listAdapter = new ArrayAdapter<CharSequence>(activity, android.R.layout.simple_list_item_1, filteredItems) {
         @NonNull
         @Override
         public View getView(int pos, @Nullable View convertView, @NonNull ViewGroup parent) {
-                TextView textView = (TextView) super.getView(pos, convertView, parent);
-                String text = textView.getText().toString();
+            final Pair<String, Integer> item = getItem(pos);
+            final String text = item.first;
+            final int posInOriginalList = item.second;
+
+            final TextView textView;
+            if (convertView == null) {
+                textView = (TextView) mInflater.inflate(mLayout, parent, false);
+            } else {
+                textView = (TextView) convertView;
+            }
 
-                int posInOriginalList = dopt.data.indexOf(text);
             if (posInOriginalList >= 0 && dopt.iconsForData != null && posInOriginalList < dopt.iconsForData.size() && dopt.iconsForData.get(posInOriginalList) != 0) {
                 textView.setCompoundDrawablesWithIntrinsicBounds(dopt.iconsForData.get(posInOriginalList), 0, 0, 0);
                 textView.setCompoundDrawablePadding(32);
@@ -109,9 +140,19 @@ public class SearchOrCustomTextDialog {
                 textView.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
             }
 
-                boolean hl = dopt.highlightData.contains(text);
+            if (dopt.highlightData != null) {
+                final boolean hl = dopt.highlightData.contains(text);
                 textView.setTextColor(hl ? dopt.highlightColor : dopt.textColor);
                 textView.setTypeface(null, hl ? Typeface.BOLD : Typeface.NORMAL);
+            }
+
+            if (dopt.highlighter != null) {
+                Spannable s = new SpannableString(text);
+                dopt.highlighter.callback(s);
+                textView.setText(s);
+            } else {
+                textView.setText(text);
+            }
 
             return textView;
         }
@@ -123,30 +164,47 @@ public class SearchOrCustomTextDialog {
                 @Override
                 protected void publishResults(final CharSequence constraint, final FilterResults results) {
                     filteredItems.clear();
-                        filteredItems.addAll((List<String>) results.values);
+                    filteredItems.addAll((List<Pair<String, Integer>>) results.values);
                     notifyDataSetChanged();
                 }
 
                 @Override
                 protected FilterResults performFiltering(final CharSequence constraint) {
-                        final FilterResults res = new FilterResults();
-                        final ArrayList<CharSequence> resList = new ArrayList<>();
-                        final String fil = constraint.toString();
+                    final ArrayList<Pair<CharSequence, Integer>> resList = new ArrayList<>();
 
-                        for (final CharSequence str : allItems) {
-                            if ("".equals(fil) || str.toString().toLowerCase(Locale.getDefault()).contains(fil.toLowerCase(Locale.getDefault()))) {
-                                resList.add(str);
+                    if (dopt.data != null) {
+                        final String fil = constraint.toString();
+                        final boolean emptySearch = fil.isEmpty();
+                        for (int i = 0; i < dopt.data.size(); i++) {
+                            final CharSequence str = dopt.data.get(i);
+                            final boolean matchExtra = (extraPattern == null) || extraPattern.matcher(str).find();
+                            final boolean matchNormal = str.toString().toLowerCase(Locale.getDefault()).contains(fil.toLowerCase(Locale.getDefault()));
+                            final boolean matchRegex = dopt.searchIsRegex && (str.toString().matches(fil));
+                            if (matchExtra && (matchNormal || matchRegex || emptySearch)) {
+                                resList.add(new Pair<>(str, i));
                             }
                         }
+                    }
+
+                    final FilterResults res = new FilterResults();
                     res.values = resList;
                     res.count = resList.size();
                     return res;
                 }
             };
         }
-        };
+    }
+
+    public static void showMultiChoiceDialogWithSearchFilterUI(final Activity activity, final DialogOptions dopt) {
+        final List<Pair<String, Integer>> filteredItems = new ArrayList<>();
+        final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(activity, dopt.isDarkDialog
+                ? android.support.v7.appcompat.R.style.Theme_AppCompat_Dialog
+                : android.support.v7.appcompat.R.style.Theme_AppCompat_Light_Dialog
+        );
+        final WithPositionAdapter listAdapter = new WithPositionAdapter(activity, android.R.layout.simple_list_item_1, filteredItems, dopt);
 
         final AppCompatEditText searchEditText = new AppCompatEditText(activity);
+        searchEditText.setText(dopt.defaultText);
         searchEditText.setSingleLine(true);
         searchEditText.setMaxLines(1);
         searchEditText.setTextColor(dopt.textColor);
@@ -174,24 +232,35 @@ public class SearchOrCustomTextDialog {
         listView.setAdapter(listAdapter);
         listView.setVisibility(dopt.data != null && !dopt.data.isEmpty() ? View.VISIBLE : View.GONE);
         linearLayout.setOrientation(LinearLayout.VERTICAL);
+
         if (dopt.isSearchEnabled) {
             LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
             int px = (int) (new ContextUtils(listView.getContext()).convertDpToPx(8));
             lp.setMargins(px, px / 2, px, px / 2);
             linearLayout.addView(searchEditText, lp);
         }
+
         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 0);
         layoutParams.weight = 1;
         linearLayout.addView(listView, layoutParams);
         if (!TextUtils.isEmpty(dopt.messageText)) {
             dialogBuilder.setMessage(dopt.messageText);
         }
+
         dialogBuilder.setView(linearLayout)
                 .setOnCancelListener(null)
                 .setNegativeButton(dopt.cancelButtonText, (dialogInterface, i) -> dialogInterface.dismiss());
+
+        if (dopt.neutralButtonCallback != null && dopt.neutralButtonText != 0) {
+            dialogBuilder.setNeutralButton(dopt.neutralButtonText, (dialogInterface, i) -> {
+                dopt.neutralButtonCallback.callback();
+            });
+        }
+
         if (dopt.titleText != 0) {
             dialogBuilder.setTitle(dopt.titleText);
         }
+
         if (dopt.isSearchEnabled) {
             dialogBuilder.setPositiveButton(dopt.okButtonText, (dialogInterface, i) -> {
                 dialogInterface.dismiss();
@@ -205,7 +274,11 @@ public class SearchOrCustomTextDialog {
         listView.setOnItemClickListener((parent, view, position, id) -> {
             dialog.dismiss();
             if (dopt.callback != null) {
-                dopt.callback.callback(filteredItems.get(position).toString());
+                dopt.callback.callback(filteredItems.get(position).first);
+            }
+            if (dopt.withPositionCallback != null) {
+                final Pair<String, Integer> item = filteredItems.get(position);
+                dopt.withPositionCallback.callback(item.first, item.second);
             }
         });
 
@@ -220,7 +293,6 @@ public class SearchOrCustomTextDialog {
             return false;
         });
 
-
         Window w;
         if ((w = dialog.getWindow()) != null && dopt.isSearchEnabled) {
             w.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
@@ -241,6 +313,9 @@ public class SearchOrCustomTextDialog {
         if (dopt.isSearchEnabled) {
             searchEditText.requestFocus();
         }
+        if (dopt.defaultText != null) {
+            listAdapter.getFilter().filter(searchEditText.getText());
+        }
     }
 
 

app/src/main/java/net/gsantner/opoc/util/Callback.java

@@ -37,6 +37,10 @@ public class Callback {
         void callback(A arg1, B arg2, C arg3, D arg4, E arg5);
     }
 
+    public interface b0 {
+        boolean callback();
+    }
+
     public interface b1<A> {
         boolean callback(A arg1);
     }
@@ -56,4 +60,28 @@ public class Callback {
     public interface b5<A, B, C, D, E> {
         boolean callback(A arg1, B arg2, C arg3, D arg4, E arg5);
     }
+
+    public interface s0 {
+        String callback();
+    }
+
+    public interface s1<A> {
+        String callback(A arg1);
+    }
+
+    public interface s2<A, B> {
+        String callback(A arg1, B arg2);
+    }
+
+    public interface s3<A, B, C> {
+        String callback(A arg1, B arg2, C arg3);
+    }
+
+    public interface s4<A, B, C, D> {
+        String callback(A arg1, B arg2, C arg3, D arg4);
+    }
+
+    public interface s5<A, B, C, D, E> {
+        String callback(A arg1, B arg2, C arg3, D arg4, E arg5);
+    }
 }

app/src/main/java/net/gsantner/opoc/util/ContextUtils.java

@@ -893,7 +893,7 @@ public class ContextUtils {
         public CharSequence filter(CharSequence src, int start, int end, Spanned dest, int dstart, int dend) {
             if (src.length() < 1) return null;
             char last = src.charAt(src.length() - 1);
-            String illegal = "|\\?*<\":>+[]/'";
+            String illegal = "|\\?*<\":>[]/'";
             if (illegal.indexOf(last) > -1) return src.subSequence(0, src.length() - 1);
             return null;
         }
@@ -935,7 +935,11 @@ public class ContextUtils {
             ContentResolver cr = _context.getContentResolver();
             mimeType = cr.getType(uri);
         } else {
-            String ext = MimeTypeMap.getFileExtensionFromUrl(uri.toString());
+            String filename = uri.toString();
+            if (filename.endsWith(".jenc")) {
+                filename = filename.replace(".jenc", "");
+            }
+            String ext = MimeTypeMap.getFileExtensionFromUrl(filename);
             mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(ext.toLowerCase());
 
             // Try to guess if the recommended methods fail

app/src/main/java/net/gsantner/opoc/util/FileUtils.java

@@ -409,9 +409,10 @@ public class FileUtils {
 
             if (guess == null || guess.isEmpty()) {
                 guess = "*/*";
-                int dot = file.getName().lastIndexOf(".") + 1;
-                if (dot > 0 && dot < file.getName().length()) {
-                    switch (file.getName().substring(dot)) {
+                String filename = file.getName().replace(".jenc", "");
+                int dot = filename.lastIndexOf(".") + 1;
+                if (dot > 0 && dot < filename.length()) {
+                    switch (filename.substring(dot)) {
                         case "md":
                         case "markdown":
                         case "mkd":
@@ -488,4 +489,16 @@ public class FileUtils {
         ret[2] = (int) (diff / 1000) % 60; // sec
         return ret;
     }
+
+    public static String getHumanReadableByteCountSI(final long bytes) {
+        if (bytes < 1000) {
+            return String.format(Locale.getDefault(), "%d%s", bytes, "B");
+        } else if (bytes < 1000000) {
+            return String.format(Locale.getDefault(), "%.2f%s", (bytes / 1000f), "KB");
+        } else if (bytes < 1000000000) {
+            return String.format(Locale.getDefault(), "%.2f%s", (bytes / 1000000f), "GB");
+        } else {
+            return String.format(Locale.getDefault(), "%.2f%s", (bytes / 1000000000f), "TB");
+        }
+    }
 }

app/src/main/java/net/gsantner/opoc/util/NetworkUtils.java

@@ -24,6 +24,7 @@ import java.net.URL;
 import java.net.URLDecoder;
 import java.net.URLEncoder;
 import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -150,6 +151,7 @@ public class NetworkUtils {
         return performCall(url, method, data, null);
     }
 
+    @SuppressWarnings("CharsetObjectCanBeUsed")
     private static String performCall(final URL url, final String method, final String data, final HttpURLConnection existingConnection) {
         try {
             final HttpURLConnection connection = existingConnection != null
@@ -160,7 +162,7 @@ public class NetworkUtils {
             if (data != null && !data.isEmpty()) {
                 connection.setDoOutput(true);
                 final OutputStream output = connection.getOutputStream();
-                output.write(data.getBytes(Charset.forName(UTF8)));
+                output.write(data.getBytes(Charset.forName("UTF-8")));
                 output.flush();
                 output.close();
             }

app/src/main/java/net/gsantner/opoc/util/ShareUtil.java

@@ -78,7 +78,7 @@ import static android.app.Activity.RESULT_OK;
  * Also allows to parse/fetch information out of shared information.
  * (M)Permissions are not checked, wrap ShareUtils methods if neccessary
  */
-@SuppressWarnings({"UnusedReturnValue", "WeakerAccess", "SameParameterValue", "unused", "deprecation", "ConstantConditions", "ObsoleteSdkInt", "SpellCheckingInspection", "JavadocReference"})
+@SuppressWarnings({"UnusedReturnValue", "WeakerAccess", "SameParameterValue", "unused", "deprecation", "ConstantConditions", "ObsoleteSdkInt", "SpellCheckingInspection", "JavadocReference", "ConstantLocale"})
 public class ShareUtil {
     public final static String EXTRA_FILEPATH = "real_file_path_2";
     public final static SimpleDateFormat SDF_RFC3339_ISH = new SimpleDateFormat("yyyy-MM-dd'T'HH-mm-ss", Locale.getDefault());
@@ -90,6 +90,8 @@ public class ShareUtil {
     public final static int REQUEST_PICK_PICTURE = 50002;
     public final static int REQUEST_SAF = 50003;
 
+    public final static int MIN_OVERWRITE_LENGTH = 5;
+
     protected static String _lastCameraPictureFilepath;
 
     protected Context _context;
@@ -1132,7 +1134,9 @@ public class ShareUtil {
         try {
             FileOutputStream fileOutputStream = null;
             ParcelFileDescriptor pfd = null;
-            if (file.canWrite() || (!file.exists() && file.getParentFile().canWrite())) {
+            final boolean existingEmptyFile = file.canWrite() && file.length() < MIN_OVERWRITE_LENGTH;
+            final boolean nonExistingCreatableFile = !file.exists() && file.getParentFile().canWrite();
+            if (existingEmptyFile || nonExistingCreatableFile) {
                 if (isDirectory) {
                     file.mkdirs();
                 } else {
@@ -1144,7 +1148,7 @@ public class ShareUtil {
                     if (isDirectory) {
                         // Nothing to do
                     } else {
-                        pfd = _context.getContentResolver().openFileDescriptor(dof.getUri(), "w");
+                        pfd = _context.getContentResolver().openFileDescriptor(dof.getUri(), "rw");
                         fileOutputStream = new FileOutputStream(pfd.getFileDescriptor());
                     }
                 }

build.gradle

@@ -13,8 +13,8 @@ import java.text.SimpleDateFormat
 
 buildscript {
     ext {
-        version_gradle_tools = "3.6.1"
-        version_plugin_kotlin = "1.3.71"
+        version_gradle_tools = "3.6.3"
+        version_plugin_kotlin = "1.3.72"
         enable_plugin_kotlin = false
 
         version_compileSdk = 28
@@ -59,6 +59,13 @@ allprojects {
     tasks.matching { task -> task.name.matches('.*generate.*Resources') }.all {
         task -> task.dependsOn copyRepoFiles
     }
+
+    tasks.matching {it instanceof Test}.all { // Enable unit test output, html+xml output
+        testLogging.events "passed", "skipped", "failed", "standardOut", "standardError"
+        testLogging.showStandardStreams = true
+        reports.junitXml.enabled = true
+        reports.html.enabled = true
+    }
 }
 
 task clean(type: Delete) {

circle.yml

@@ -1,38 +0,0 @@
-###################
-general:
-    artifacts:
-        - /home/ubuntu/dandelion/app/build/outputs/apk/
-    branches:
-        ignore:
-            - gh-pages
-            - l10n_master
-            - crowdin
-
-###################
-machine:
-    java:
-        version: oraclejdk8
-    environment:
-        ANDROID_HOME: /usr/local/android-sdk-linux
-
-###################
-dependencies:
-  pre:
-    # Android SDK Platform
-    - if [ ! -d "/usr/local/android-sdk-linux/platforms/android-26" ]; then echo y | android update sdk --no-ui --all --filter "android-26"; fi
-    # Android SDK Build-tools
-    - if [ ! -d "/usr/local/android-sdk-linux/build-tools/26.0.1" ]; then echo y | android update sdk --no-ui --all --filter "build-tools-26.0.1"; fi
-    # Android Support Repository - deprecated
-    #- if [ ! -d "/usr/local/android-sdk-linux/extras/android/m2repository/com/android/support/design/26.2.0" ]; then echo y | android update sdk --no-ui --all --filter "extra-android-m2repository"; fi
-    
-
-  cache_directories:
-    - /usr/local/android-sdk-linux/platforms/android-26
-    - /usr/local/android-sdk-linux/build-tools/26.0.1
-    #- /usr/local/android-sdk-linux/extras/android/m2repository
-
-###################
-test:
-    override:
-        - (./gradlew assembleFlavorDefault):
-            timeout: 360