/
json.go
67 lines (59 loc) · 1.57 KB
/
json.go
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package main
import (
"encoding/json"
"io"
"strings"
"golang.org/x/tools/cover"
)
type jsonRenderer struct{}
var _ renderer = (*jsonRenderer)(nil)
func (r *jsonRenderer) Render(w io.Writer, profiles []*cover.Profile, path string) error {
results, err := getJSONResults(profiles, path)
if err != nil {
return err
}
return json.NewEncoder(w).Encode(results)
}
type jsonResult struct {
FileName string `json:"fileName"`
CoveredLines []int `json:"coveredLines"`
UncoveredLines []int `json:"uncoveredLines"`
}
func newJSONResult(fileName string, lines []string) *jsonResult {
coveredLines := make([]int, 0, len(lines))
uncoveredLines := make([]int, 0, len(lines))
for i, line := range lines {
switch {
case strings.HasPrefix(line, covered):
coveredLines = append(coveredLines, i+1)
case strings.HasPrefix(line, uncovered):
uncoveredLines = append(uncoveredLines, i+1)
}
}
return &jsonResult{
FileName: fileName,
CoveredLines: coveredLines,
UncoveredLines: uncoveredLines,
}
}
func getJSONResults(profiles []*cover.Profile, path string) ([]*jsonResult, error) {
diffs, err := getDiffs()
if err != nil {
return nil, err
}
results := make([]*jsonResult, 0, len(profiles))
for _, profile := range profiles {
lines, err := getLines(profile, path)
if err != nil {
return nil, err
}
if gitDiffOnly {
if containsDiff(profile.FileName, path, diffs) {
results = append(results, newJSONResult(profile.FileName, lines))
}
} else {
results = append(results, newJSONResult(profile.FileName, lines))
}
}
return results, nil
}