modify code coverage sort and add function comparing the current file with the former

README.rst

@@ -1,16 +1,14 @@
 Gocov HTML export
 =================
 
-This is a simple helper tool for generating HTML output from `axw/gocov`_.
+This is a simple helper tool for generating HTML output from `axw/gocov`_
 
-.. _axw/gocov: https://github.com/axw/gocov
+.. _axw/gocov: https://github.com/axw/gocov  
 
-Here is a screenshot:
+and it forked from `matm/gocov-html`_.
+
+.. _matm/gocov-html: https://github.com/matm/gocov-html 
 
-.. image:: https://github.com/matm/gocov-html/blob/master/gocovh-html.png
-   :scale: 40 %
-   :alt: HTML coverage report screenshot
-   :align: center
 
 
 Installation
@@ -19,20 +17,39 @@ Installation
 Just type the following to install the program and its dependencies::
 
     $ go get github.com/axw/gocov/gocov
-    $ go get -u gopkg.in/matm/v1/gocov-html
+    $ go get github.com/XingyanLee/gocov-html
 
 Usage
 -----
 
+
+first step: Set environment variable `GO_COV_HTML_REORDER`::
+
+    $ export GO_COV_HTML_REORDER=1
+
 `gocov-html` can read a JSON file or read from standard input::
 
-    $ gocov test net/http | gocov-html > http.html
+    $ gocov convert c.out | gocov-html > http.html
 
 or::
 
     $ gocov test net/http > http.json
     $ gocov-html http.json > http.html
 
+if you want to use former sorting algorithm,just set `GO_COV_HTML_REORDER` to null or do not set environment variable `GO_COV_HTML_REORDER`.
+
+
+if you want to compare current and previous code coverage file, the former must be a json file and need be written after the filed '-diff' . In addition,you need set an environment variable `GO_COV_HTML_REORDER_TOPN` whose value is up to you. Its  default value is 10. These two command will show `GO_COV_HTML_REORDER_TOPN` functions whose coverage is less than the former file::
+
+    $ export GO_COV_HTML_REORDER_TOPN=10
+    $ gocov convert c.out | gocov-html -diff formerfilename.json> http.html
+
+
+if you want to see functions whose coverage is less than a certain value in current code coverage file, you just need to set a environment variable `GO_COV_HTML_REORDER_NEWFUNLIMIT` whose value is up to you. this command will highlight the functions whose coverage is less than `GO_COV_HTML_REORDER_NEWFUNLIMIT`::
+
+    $ export GO_COV_HTML_REORDER_NEWFUNLIMIT=90
+
+
 The generated HTML content comes along with a default embedded CSS. Use the `-s` 
 flag to use a custom stylesheet::
 

cov/const.go

@@ -101,7 +101,7 @@ const (
                 text-align: center; 
                 font-size: 20px; 
                 font-weight: bold; 
-                color: 375eab; 
+                color: #375eab; 
             }
             .funcname {
                 text-align: left;
@@ -149,7 +149,7 @@ const (
                 padding: 10px;
                 margin: 20px;
                 line-height: 18px;
-                font-size; 14px;
+                font-size: 14px;
             }
             a { 
                 text-decoration: none;