update gitfetch to use builtins, add config option for author

cmd/gitfetch/gitfetch.go

@@ -1,87 +1,30 @@
 package main
 
 import (
-	"errors"
 	"fmt"
 	"os"
 	"time"
 
-	git "github.com/go-git/go-git/v5"
-	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/taigrr/gico/commits"
 	gterm "github.com/taigrr/gico/graph/term"
-
-	"github.com/taigrr/gico/types"
 )
 
 func main() {
 	year := time.Now().Year()
-	repo, err := OpenRepo(".")
+	dir, err := os.Getwd()
 	if err != nil {
 		panic(err)
 	}
-	str, err := repo.GetYear(year)
+	r, err := commits.OpenRepo(dir)
+	if err != nil {
+		fmt.Println("Error opening current directory as a git repo")
+		os.Exit(1)
+	}
+	cs, err := r.GetCommitSet()
 	if err != nil {
 		panic(err)
 	}
-	fmt.Print(str)
-}
-
-type Repo git.Repository
-
-func OpenRepo(directory string) (Repo, error) {
-	if s, err := os.Stat(directory); err != nil {
-		return Repo{}, err
-	} else {
-		if !s.IsDir() {
-			return Repo{}, errors.New("received path to non-directory for git repo")
-		}
-	}
-
-	r, err := git.PlainOpenWithOptions(directory, &(git.PlainOpenOptions{DetectDotGit: true}))
-	return Repo(*r), err
-}
-
-func (repo Repo) GetYear(year int) (string, error) {
-	yearLength := 365
-	if year%4 == 0 {
-		yearLength++
-	}
-	data := types.NewDataSet()
-	r := git.Repository(repo)
-	ref, err := r.Head()
-	if err != nil {
-		return "", err
-	}
-	cIter, err := r.Log(&git.LogOptions{From: ref.Hash()})
-	if err != nil {
-		return "", err
-	}
-	err = cIter.ForEach(func(c *object.Commit) error {
-		ts := c.Author.When
-		commit := types.Commit{Author: c.Author.Name, Message: c.Message, TimeStamp: ts}
-		roundedTS := ts.Round(time.Hour * 24)
-		wd, ok := data[roundedTS]
-		if !ok {
-			wd = types.WorkDay{}
-			wd.Commits = []types.Commit{}
-		}
-		wd.Commits = append(wd.Commits, commit)
-		wd.Count++
-		wd.Day = roundedTS
-		data[roundedTS] = wd
-		return nil
-	})
-
-	freq := make([]int, yearLength)
-	for k, v := range data {
-		if k.Year() != year {
-			continue
-		}
-		// this is equivalent to adding len(commits) to the freq total, but
-		// it's a stub for later when we do more here
-		for range v.Commits {
-			freq[k.YearDay()-1]++
-		}
-	}
-	return gterm.GetYearUnicode(freq), nil
+	cs = cs.FilterByYear(year)
+	freq := cs.ToYearFreq()
+	fmt.Print(gterm.GetYearUnicode(freq))
 }