Gocov HTML export

This is a simple helper tool for generating HTML output from axw/gocov

and it forked from matm/gocov-html.

Installation

Just type the following to install the program and its dependencies:

$ go get github.com/axw/gocov/gocov
$ 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 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:

$ gocov test net/http | gocov-html -s mystyle.css > http.html