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summarize-appveyor-log.go
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//summarize MSVC errors from an appveyor log
// compile with 'go build summarize-appveyor-log.go'
package main
import (
"bufio"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"regexp"
"sort"
"strings"
)
const (
headerKey = "Authorization"
headerVal = "Bearer %s"
projUrl = "https://ci.appveyor.com/api/projects/mpictor/stepcode"
//"https://ci.appveyor.com/api/buildjobs/2rjxdv1rnb8jcg8y/log"
logUrl = "https://ci.appveyor.com/api/buildjobs/%s/log"
)
//uses stdin and stdout
func main() {
rawlog, build, err := getLog()
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %s\n", err)
return
}
defer rawlog.Close()
log := unwrap(rawlog)
warns, errs := countMessages(log)
fi, err := os.Create(fmt.Sprintf("appveyor-%d.smy", build))
if err != nil {
fmt.Fprintf(os.Stderr, "ERROR: %s\n", err)
return
}
printMessages("error", errs, fi)
printMessages("warning", warns, fi)
fmt.Printf("done\n")
}
/* categorizes warnings and errors based upon the MSVC message number (i.e. C4244)
* the regex will match lines like
[ 00:03:42] c:\projects\stepcode\src\base\sc_benchmark.h(45): warning C4251: 'benchmark::descr' : class 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' needs to have dll-interface to be used by clients of class 'benchmark' [C:\projects\STEPcode\build\src\base\base.vcxproj]
[00:03:48] C:\projects\STEPcode\src\base\sc_benchmark.cc(61): warning C4244: '=' : conversion from 'SIZE_T' to 'long', possible loss of data [C:\projects\STEPcode\build\src\base\base.vcxproj]*
*/
func countMessages(log []string) (warns, errs map[string][]string) {
warns = make(map[string][]string)
errs = make(map[string][]string)
tstamp := `\[\d\d:\d\d:\d\d\] `
fname := " *(.*)" // $1
fline := `(?:\((\d+)\)| ): ` // $2 - either line number in parenthesis or a space, followed by a colon
msgNr := `([A-Z]+\d+): ` // $3 - C4251, LNK2005, etc
msgTxt := `([^\[]*) ` // $4
tail := `\[[^\[\]]*\]`
warnRe := regexp.MustCompile(tstamp + fname + fline + `warning ` + msgNr + msgTxt + tail)
errRe := regexp.MustCompile(tstamp + fname + fline + `(?:fatal )?error ` + msgNr + msgTxt + tail)
for _, line := range log {
if warnRe.MatchString(line) {
key := warnRe.ReplaceAllString(line, "$3")
path := strings.ToLower(warnRe.ReplaceAllString(line, "$1:$2"))
arr := warns[key]
if arr == nil {
arr = make([]string, 5)
//detailed text as first string in array
text := warnRe.ReplaceAllString(line, "$4")
arr[0] = fmt.Sprintf("%s", text)
}
//eliminate duplicates
match := false
for _, l := range arr {
if l == path {
match = true
}
}
if !match {
warns[key] = append(arr, path)
}
} else if errRe.MatchString(line) {
key := errRe.ReplaceAllString(line, "$3")
path := strings.ToLower(errRe.ReplaceAllString(line, "$1:$2"))
arr := errs[key]
if arr == nil {
arr = make([]string, 5)
//detailed text as first string in array
text := errRe.ReplaceAllString(line, "$4")
arr[0] = fmt.Sprintf("%s", text)
}
//eliminate duplicates
match := false
for _, l := range arr {
if l == path {
match = true
}
}
if !match {
errs[key] = append(arr, path)
}
}
}
return
}
func printMessages(typ string, m map[string][]string, w io.Writer) {
//sort keys
keys := make([]string, 0, len(m))
for key := range m {
keys = append(keys, key)
}
sort.Strings(keys)
for _, k := range keys {
for i, l := range m[k] {
//first string is an example, not a location
if i == 0 {
fmt.Fprintf(w, "%s %s (i.e. \"%s\")\n", typ, k, l)
} else if len(l) > 1 { //not sure where blank lines are coming from...
fmt.Fprintf(w, " >> %s\n", l)
}
}
}
}
//
func unwrap(r io.Reader) (log []string) {
startNewLine := true
unwrapScanner := bufio.NewScanner(r)
var lineOut string
for unwrapScanner.Scan() {
lastNewline := startNewLine
lineIn := unwrapScanner.Text()
startNewLine = (len(lineIn) < 240) || strings.HasSuffix(lineIn, "vcxproj]")
if !lastNewline {
lineOut += lineIn[11:]
} else {
lineOut = lineIn
}
if startNewLine {
log = append(log, lineOut)
lineOut = ""
}
}
if len(lineOut) > 0 {
log = append(log, lineOut)
}
if err := unwrapScanner.Err(); err != nil {
fmt.Fprintln(os.Stderr, "Error reading appveyor log:", err)
}
return
}
//http://json2struct.mervine.net/
type AppVeyorBuild struct {
Build struct {
BuildNumber int `json:"buildNumber"`
Jobs []struct {
JobID string `json:"jobId"`
} `json:"jobs"`
} `json:"build"`
}
func getLog() (log io.ReadCloser, build int, err error) {
client := &http.Client{}
req, err := http.NewRequest("GET", projUrl, nil)
if err != nil {
return
}
apikey := os.Getenv("APPVEYOR_API_KEY")
//api key isn't necessary for read-only queries on public projects
//if len(apikey) < 1 {
// fmt.Printf("Env var APPVEYOR_API_KEY is not set.")
//}
req.Header.Add(headerKey, fmt.Sprintf(headerVal,apikey))
resp, err := client.Do(req)
if err != nil {
return
}
build, job := decode(resp.Body)
fmt.Printf("build #%d, jobId %s\n", build, job)
resp, err = http.Get(fmt.Sprintf(logUrl, job))
if err != nil {
return
}
logName := fmt.Sprintf("appveyor-%d.log", build)
fi, err := os.Create(logName)
if err != nil {
return
}
_, err = io.Copy(fi, resp.Body)
if err != nil {
return
}
log, err = os.Open(logName)
if err != nil {
log = nil
}
return
}
func decode(r io.Reader) (num int, job string) {
dec := json.NewDecoder(r)
var av AppVeyorBuild
err := dec.Decode(&av)
if err != io.EOF && err != nil {
fmt.Printf("err %s\n", err)
return
}
if len(av.Build.Jobs) != 1 {
return
}
num = av.Build.BuildNumber
job = av.Build.Jobs[0].JobID
return
}
// kate: indent-width 8; space-indent off; replace-tabs off; replace-tabs-save off; replace-trailing-space-save on; remove-trailing-space on; tab-intent on; tab-width 8; show-tabs off;