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package git
import (
"errors"
"os"
"os/exec"
"path/filepath"
"pik/model"
"pik/spool"
"strconv"
"strings"
)
type gitMod struct {
Git string
err error
}
func (g *gitMod) Init() error {
p, err := exec.LookPath("git")
if err != nil {
g.err = err
return nil
}
g.Git = p
return nil
}
var Git = &gitMod{}
func (g *gitMod) Mod(source *model.Source, result *model.HydratedSource) error {
gitFolder := filepath.Join(source.Path, ".git")
if st, err := os.Stat(gitFolder); err == nil && st.IsDir() {
if g.Git == "" {
spool.Warn("source %v seems to be a git repository but git is not installed\n", source.Identity.Full)
return nil
}
branch, err := g.Branch(source)
if err != nil {
spool.Warn("%v", err)
return nil
}
ch, in, de, err := g.Diff(source)
if err != nil {
spool.Warn("%v", err)
return nil
}
result.Git = &model.GitInfo{
Branch: branch,
Insertions: in,
Deletions: de,
Changes: ch,
}
}
return nil
}
func (g *gitMod) Branch(source *model.Source) (string, error) {
cmd := exec.Command(g.Git, "branch", "--show-current")
cmd.Dir = source.Path
b, err := cmd.CombinedOutput()
return strings.TrimSpace(string(b)), err
}
var UnknownResponseError = errors.New("unknown response")
func (g *gitMod) Diff(source *model.Source) (int, int, int, error) {
cmd := exec.Command(g.Git, "diff", "--shortstat")
cmd.Dir = source.Path
b, err := cmd.CombinedOutput()
if err != nil {
return 0, 0, 0, err
}
split := strings.Split(string(b), ",")
changes := 0
insertions := 0
deletions := 0
for _, s := range split {
if strings.TrimSpace(s) == "" {
return 0, 0, 0, nil
}
var e error
pt := strings.Split(strings.TrimSpace(s), " ")
num, e := strconv.Atoi(pt[0])
switch {
case strings.Contains(s, "changed"):
changes = num
case strings.Contains(s, "insertion"):
insertions = num
case strings.Contains(s, "deletion"):
deletions = num
default:
return changes, insertions, deletions, UnknownResponseError
}
if e != nil {
return changes, insertions, deletions, e
}
}
return changes, insertions, deletions, nil
}
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