Merge pull request #7 from gregwebs/rm-errors-dep

remove errors dependency

.github/workflows/build.yaml

@@ -23,7 +23,7 @@ jobs:
       - name: setup
         uses: actions/setup-go@v4
         with:
-          go-version: '>=1.23.2'
+          go-version: '>=1.23.6'
           cache: false
           check-latest: true
 
@@ -63,6 +63,6 @@ jobs:
       - id: govulncheck
         uses: golang/govulncheck-action@v1
         with:
-           go-version-input: 1.23.2
+           go-version-input: 1.23.6
            go-package: ./...
            cache: false

concurrent.go

@@ -3,7 +3,6 @@ package concurrent
 import (
 	"sync"
 
-	"github.com/gregwebs/errors"
 	"github.com/gregwebs/go-recovery"
 )
 
@@ -63,7 +62,7 @@ func (gr GoRoutine) GoN(n int, fn func(int) error) []error {
 		})
 	}
 	wg.Wait()
-	return errors.Joins(errs...)
+	return joins(errs...)
 }
 
 // The same as [GoEach] but with go routine launching configured by a GoRoutine.
@@ -168,3 +167,22 @@ func NewUnboundedChan[T any]() UnboundedChan[T] {
 	}()
 	return uc
 }
+
+func joins(errs ...error) []error {
+	n := 0
+	for _, err := range errs {
+		if err != nil {
+			n++
+		}
+	}
+	if n == 0 {
+		return nil
+	}
+	newErrs := make([]error, 0, n)
+	for _, err := range errs {
+		if err != nil {
+			newErrs = append(newErrs, err)
+		}
+	}
+	return newErrs
+}

go.mod

@@ -1,12 +1,12 @@
 module github.com/gregwebs/go-concurrent
 
-require github.com/gregwebs/go-recovery v0.3.2
+require github.com/gregwebs/go-recovery v0.4.0
+
+require github.com/shoenig/test v1.11.0
 
 require (
-	github.com/gregwebs/errors v1.14.0
-	github.com/shoenig/test v1.11.0
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/gregwebs/stackfmt v0.1.1 // indirect
 )
 
-require github.com/google/go-cmp v0.6.0 // indirect
-
-go 1.23.1
+go 1.23.6

go.sum

@@ -2,10 +2,10 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/gregwebs/errors v1.14.0 h1:bkCLXmqiH+nNXUZi4+CNmDEUq04y9HQg0kNOtNPMS8E=
-github.com/gregwebs/errors v1.14.0/go.mod h1:1NkCObP7+scylHlC69lwHl2ACOHwktWYrZV4EJDEl6g=
-github.com/gregwebs/go-recovery v0.3.2 h1:vGjQtFXS5lRhDlMlMWCpbm4kQSu2FnZ6ozmxCtCGbJE=
-github.com/gregwebs/go-recovery v0.3.2/go.mod h1:q1/QQy0LZN6bIBT90Bc07Xo2ndJEoTc0k8e0l6BN/xY=
+github.com/gregwebs/go-recovery v0.4.0 h1:aZPu9Ovka7qHwK+xt/bZOtpaGwRW0ra8dyqiuuyJ0j4=
+github.com/gregwebs/go-recovery v0.4.0/go.mod h1:pTiOtRRsvlROffEmTrlpnL6shXjNZflqGibKHpJIW9E=
+github.com/gregwebs/stackfmt v0.1.1 h1:bqHZv69OGARsyNPD4tJfkJnu5oWjA86dISQKKfFt98A=
+github.com/gregwebs/stackfmt v0.1.1/go.mod h1:MQWvus3s9juULflTEiFIllieKiz7AnX7i4HWyPOs2nQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/shoenig/test v1.11.0 h1:NoPa5GIoBwuqzIviCrnUJa+t5Xb4xi5Z+zODJnIDsEQ=

group.go

@@ -38,10 +38,10 @@ package concurrent
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync"
 
-	"github.com/gregwebs/errors"
 	"github.com/gregwebs/go-recovery"
 )
 
@@ -92,7 +92,7 @@ func (g *Group) Wait() []error {
 	if g.cancel != nil {
 		g.cancel(errors.Join(errs...))
 	}
-	return errors.Joins(errs...)
+	return joins(errs...)
 }
 
 // NewGroupContext constructs a [Group] similar to [x/sync/errgroup] but with aenhancements.