use lcov 1.14 in travis.ci & flat square badges

.travis.yml

@@ -1,7 +1,7 @@
 dist: xenial
 before_install:
   - sudo apt-get update
-  - sudo apt-get install -y lcov
+  - sudo apt-get install -y wget
 language: python
 python:
   - "2.7"
@@ -16,11 +16,14 @@ script:
   - megahit --test --no-hw-accel
 after_success:
   # Create lcov report
-  - lcov --capture --directory . --output-file coverage.info.1
-  - lcov --remove coverage.info.1 '/usr/*' --output-file coverage.info.2 # filter system-files
-  - lcov --remove coverage.info.2 '*xxhash/*' --output-file coverage.info.3 # filter xxhash-files
-  - lcov --remove coverage.info.3 '*parallel_hashmap/*' --output-file coverage.info.4 # filter parallel-hashmap-files
-  - lcov --remove coverage.info.4 '*pprintpp/*' --output-file coverage.info.5 # filter pprintpp files
-  - lcov --list coverage.info.5 # debug info
+  - wget http://downloads.sourceforge.net/ltp/lcov-1.14.tar.gz
+  - tar zvxf lcov-1.14.tar.gz
+  - export PATH=lcov-1.14/bin/:${PATH}
+  - lcov --capture --directory . --output-file coverage.info
+  - lcov --remove coverage.info '/usr/*' --output-file coverage.info # filter system-files
+  - lcov --remove coverage.info '*xxhash/*' --output-file coverage.info # filter xxhash-files
+  - lcov --remove coverage.info '*parallel_hashmap/*' --output-file coverage.info # filter parallel-hashmap-files
+  - lcov --remove coverage.info '*pprintpp/*' --output-file coverage.info # filter pprintpp files
+  - lcov --list coverage.info # debug info
   # Uploading report to CodeCov
-  - bash <(curl -s https://codecov.io/bash) -f coverage.info.5 || echo "Codecov did not collect coverage reports"
+  - bash <(curl -s https://codecov.io/bash) -f coverage.info || echo "Codecov did not collect coverage reports"

README.md

@@ -1,7 +1,10 @@
 MEGAHIT
 =======
 
-[![BioConda Install](https://img.shields.io/conda/dn/bioconda/megahit.svg?style=flag&label=BioConda%20install)](https://anaconda.org/bioconda/megahit) [![Build Status](https://travis-ci.org/voutcn/megahit.svg?branch=master)](https://travis-ci.org/voutcn/megahit) [![codecov](https://codecov.io/gh/voutcn/megahit/branch/master/graph/badge.svg)](https://codecov.io/gh/voutcn/megahit)
+[![BioConda Install](https://img.shields.io/conda/dn/bioconda/megahit.svg?style=flat-square&label=BioConda%20install)](https://anaconda.org/bioconda/megahit)
+[![Downloads](https://img.shields.io/github/downloads/voutcn/megahit/total?style=flat-square)](https://github.com/voutcn/megahit/releases)
+[![Build Status](https://img.shields.io/travis/voutcn/megahit?style=flat-square)](https://travis-ci.org/voutcn/megahit)
+[![codecov](https://img.shields.io/codecov/c/github/voutcn/megahit?style=flat-square)](https://codecov.io/gh/voutcn/megahit)
 
 MEGAHIT is an ultra-fast and memory-efficient NGS assembler. It is optimized for metagenomes, but also works well on generic single genome assembly (small or mammalian size) and single-cell assembly.