Merge branch 'master' into dynamic_sd_cache

Author: earlephilhower

.gitignore

@@ -8,6 +8,14 @@ exclude.txt
 tools/sdk/lib/liblwip_src.a
 tools/sdk/lwip/src/build
 tools/sdk/lwip/src/liblwip_src.a
+tools/sdk/ld/backup
 
 *.pyc
 *.gch
+
+boards.local.txt
+
+*.gcov
+*.gcno
+*.gcda
+*.o

.travis.yml

@@ -3,6 +3,10 @@ language: bash
 os: linux
 dist: trusty
 
+cache:
+  directories:
+    - $HOME/astyle
+
 matrix:
   include:
     - env:
@@ -15,9 +19,23 @@ matrix:
       - BUILD_TYPE=package
     - env:
       - BUILD_TYPE=host_tests
+    - env:
+      - BUILD_TYPE=style_check
 
 install:
-  - pip install --user -r doc/requirements.txt
+  - >
+      [ "$BUILD_TYPE" = "docs" ] && {
+        pip install --user -r doc/requirements.txt;
+      } || true
+  - >
+      [ "$BUILD_TYPE" = "style_check" ] && {
+        [ -f $HOME/astyle/build/gcc/bin/astyle ] || {
+          wget -O astyle_3.1_linux.tar.gz https://sourceforge.net/projects/astyle/files/astyle/astyle%203.1/astyle_3.1_linux.tar.gz/download;
+          tar -xf astyle_3.1_linux.tar.gz -C $HOME;
+          make -C $HOME/astyle/build/gcc;
+        }
+        make -C $HOME/astyle/build/gcc prefix=$HOME install;
+      } || true
 
 script:
   - $TRAVIS_BUILD_DIR/tests/common.sh

ISSUE_TEMPLATE.md

@@ -1,36 +1,65 @@
+----------------------------- Delete below -----------------------------
 
-Please fill the info fields, it helps to get you faster support ;)
+If your issue is a general question, starts similar to "How do I..", is related to 3rd party libs, or is related to hardware, please discuss at a community forum like esp8266.com.
 
-if you have a stack dump decode it:
-https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/stack_dump.rst
+INSTRUCTIONS
+============
+If you do not follow these instructions, your issue may be dismissed.
 
-for better debug messages:
-https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/debugging.rst
+1. Follow the checklist under Basic Infos and fill in the [ ] spaces with an X.
+2. Fill in all the fields under Platform and Settings in IDE marked with [ ] (pick the correct option for you in each case, delete the others).
+3. If you haven't already done so, test your issue against current master branch (aka latest git), because it may have been already fixed.
+4. Describe your problem.
+5. If you have a STACK DUMP decode it:
 
------------------------------ Remove above -----------------------------
+https://arduino-esp8266.readthedocs.io/en/latest/Troubleshooting/stack_dump.html
+
+6. Include a Minimal Complete Reproducible Example sketch that shows your issue. Do not include your entire project, or a huge piece of code.
+7. Include debug messages:
+
+https://arduino-esp8266.readthedocs.io/en/latest/Troubleshooting/debugging.html 
+
+8. Use markup (buttons above) and the Preview tab to check what the issue will look like.
+9. Delete these instructions from the above to the below marker lines before submitting this issue.
+
+
+----------------------------- Delete above -----------------------------
 
 ### Basic Infos
 
-#### Hardware
-Hardware:			?ESP-12?
-Core Version:      	?2.1.0-rc2?
+- [ ] This issue complies with the [issue POLICY doc](https://github.com/esp8266/Arduino/blob/master/POLICY.md).
+- [ ] I have read the documentation at [readthedocs](https://arduino-esp8266.readthedocs.io/en/latest) and the issue is not addressed there.
+- [ ] I have tested that the issue is present in current master branch (aka latest git).
+- [ ] I have searched the issue tracker for a similar issue.
+- [ ] If there is a stack dump, I have decoded it.
+- [ ] I have filled out all fields below.
 
-### Description
+#### Platform
 
-Problem description
+- Hardware:					[ESP-12|ESP-01|ESP-07|ESP8285 device|other]
+- Core Version:			[latest git hash or date]
+- Development Env:		[Arduino IDE|Platformio|Make|other]
+- Operating System:		[Windows|Ubuntu|MacOS]
 
 ### Settings in IDE
 
-Module:  			?Generic ESP8266 Module?
-Flash Size: 		?4MB/1MB?
-CPU Frequency:		?80Mhz?
-Flash Mode:			?qio?
-Flash Frequency:	?40Mhz?
-Upload Using:		?OTA / SERIAL?
-Reset Method:		?ck / nodemcu?
+- Module:  			[Generic ESP8266 Module|Wemos D1 mini r2|Nodemcu|other]
+- Flash Mode:			[qio|dio|other]
+- Flash Size: 		[4MB/1MB]
+- lwip Variant:   [v1.4|v2 Lower Memory|Higher Bandwidth]
+- Reset Method:		[ck|nodemcu]
+- Flash Frequency:	[40Mhz]
+- CPU Frequency:		[80Mhz|160MHz]
+- Upload Using:		[OTA|SERIAL]
+- Upload Speed:   [115200|other] (serial upload only)
 
 
-### Sketch
+### Problem Description
+
+Detailed problem description goes here.
+
+
+### [MCVE](https://stackoverflow.com/help/mcve) Sketch
 
 ```cpp
 
@@ -43,12 +72,13 @@ void setup() {
 void loop() {
 
 }
+
 ```
 
 ### Debug Messages
 
 ```
-messages here
+Debug messages go here
 ```
 
 

README.md

@@ -28,7 +28,7 @@ Starting with 1.6.4, Arduino allows installation of third-party platform package
 #### Latest release [![Latest release](https://img.shields.io/github/release/esp8266/Arduino.svg)](https://github.com/esp8266/Arduino/releases/latest/)
 Boards manager link: `http://arduino.esp8266.com/stable/package_esp8266com_index.json`
 
-Documentation: [https://arduino-esp8266.readthedocs.io/en/2.4.0/](https://arduino-esp8266.readthedocs.io/en/2.4.0/)
+Documentation: [https://arduino-esp8266.readthedocs.io/en/2.4.1/](https://arduino-esp8266.readthedocs.io/en/2.4.1/)
 
 ### Using git version
 [![Linux build status](https://travis-ci.org/esp8266/Arduino.svg)](https://travis-ci.org/esp8266/Arduino)
@@ -51,19 +51,19 @@ python get.py
 
 ### Using PlatformIO
 
-[PlatformIO](http://platformio.org) is an open source ecosystem for IoT
+[PlatformIO](http://platformio.org?utm_source=github&utm_medium=arduino-esp8266) is an open source ecosystem for IoT
 development with cross platform build system, library manager and full support
 for Espressif (ESP8266) development. It works on the popular host OS: macOS, Windows,
 Linux 32/64, Linux ARM (like Raspberry Pi, BeagleBone, CubieBoard).
 
-- [What is PlatformIO?](http://docs.platformio.org/page/what-is-platformio.html)
-- [PlatformIO IDE](http://platformio.org/platformio-ide)
-- Quick Start with [PlatformIO IDE](http://docs.platformio.org/page/ide/atom.html#quick-start) or [PlatformIO Core](http://docs.platformio.org/page/core.html)
-- [Advanced usage](http://docs.platformio.org/page/platforms/espressif.html) -
-  custom settings, uploading to SPIFFS, Over-the-Air (OTA) or using stage version
-- [Integration with Cloud and Standalone IDEs](http://docs.platformio.org/page/ide.html) -
-  Cloud9, Codeanywhere, Eclipse Che (Codenvy), Atom, CLion, Eclipse, Emacs, NetBeans, Qt Creator, Sublime Text, VIM and Visual Studio
-- [Project Examples](http://docs.platformio.org/page/platforms/espressif.html#examples)
+- [What is PlatformIO?](http://docs.platformio.org/en/latest/what-is-platformio.html?utm_source=github&utm_medium=arduino-esp8266)
+- [PlatformIO IDE](http://platformio.org/platformio-ide?utm_source=github&utm_medium=arduino-esp8266)
+- [PlatformIO Core](http://docs.platformio.org/en/latest/core.html?utm_source=github&utm_medium=arduino-esp8266) (command line tool)
+- [Advanced usage](http://docs.platformio.org/en/latest/platforms/espressif8266.html?utm_source=github&utm_medium=arduino-esp8266) -
+  custom settings, uploading to SPIFFS, Over-the-Air (OTA), staging version
+- [Integration with Cloud and Standalone IDEs](http://docs.platformio.org/en/latest/ide.html?utm_source=github&utm_medium=arduino-esp8266) -
+  Cloud9, Codeanywhere, Eclipse Che (Codenvy), Atom, CLion, Eclipse, Emacs, NetBeans, Qt Creator, Sublime Text, VIM, Visual Studio, and VSCode
+- [Project Examples](http://docs.platformio.org/en/latest/platforms/espressif8266.html?utm_source=github&utm_medium=arduino-esp8266#examples)
 
 ### Building with make