chore: add grug-math

build(deps): bump golang.org/x/net from 0.12.0 to 0.17.0

.gitea/workflows/bump-push.yml

@@ -0,0 +1,25 @@
+name: Go Bump
+
+on: 
+  push:
+    branches: [ "main" ]
+
+jobs:
+  bump:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+        fetch-tags: true
+    
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.21.1
+
+    - run: go install github.com/psanetra/git-semver/cli@master
+
+    - run: git tag v$(cli next --stable=false) && git push --tags || echo no change
+
+    - run: echo "🍏 This job's status is ${{ job.status }}."

.gitea/workflows/github-mirror.yml

@@ -0,0 +1,30 @@
+name: Go Bump
+
+on: 
+  push:
+    branches: [ "main" ]
+
+jobs:
+  bump:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        fetch-depth: 0
+        fetch-tags: true
+        
+    - name: Deploy to external repository
+      uses: https://git.sour.is/actions/github-action-push-to-another-repository@main
+      env:
+        API_TOKEN_GITHUB: ${{ secrets.GH_TOKEN }}
+      with:
+        # GitHub Action output files
+        source-directory: .
+        destination-github-username: sour-is
+        destination-repository-name: go-pkg
+        user-email: jon@xuu.cc
+        # It defaults to `main`
+        target-branch: "main"
+
+    - run: echo "🍏 This job's status is ${{ job.status }}."
+

.gitea/workflows/test.yml

@@ -0,0 +1,33 @@
+name: Go Test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
+    - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+    - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+    
+    - uses: actions/checkout@v3
+    - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
+    - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+    
+    - name: List files in the repository
+      run: |
+        ls ${{ gitea.workspace }}
+    
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.21.1
+
+    - name: Test
+      run: go test --race -v ./...
+
+    - run: echo "🍏 This job's status is ${{ job.status }}."

.github/workflows/go.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.20.5
+        go-version: 1.21.1
 
     - name: Test
       run: go test -v ./...

go.mod

@@ -1,6 +1,6 @@
 module go.sour.is/pkg
 
-go 1.20
+go 1.21
 
 require (
 	github.com/99designs/gqlgen v0.17.34
@@ -24,9 +24,9 @@ require (
 	github.com/hashicorp/golang-lru/v2 v2.0.3 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16 // indirect
 	github.com/prometheus/common v0.44.0 // indirect
-	github.com/prometheus/procfs v0.11.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
 	go.opentelemetry.io/contrib v1.16.1 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20230711160842-782d3b101e98 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
@@ -38,18 +38,18 @@ require (
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
-	github.com/prometheus/client_golang v1.16.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.42.0
+	github.com/prometheus/client_golang v1.17.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.44.0
 	go.opentelemetry.io/contrib/instrumentation/runtime v0.42.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.18.0 // indirect
-	go.opentelemetry.io/otel/exporters/prometheus v0.39.0
+	go.opentelemetry.io/otel/exporters/prometheus v0.41.0
 	go.opentelemetry.io/otel/metric v1.18.0
 	go.opentelemetry.io/otel/sdk v1.18.0
 	go.opentelemetry.io/otel/trace v1.18.0
 	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
-	golang.org/x/net v0.12.0 // indirect
-	golang.org/x/sys v0.12.0 // indirect
-	golang.org/x/text v0.11.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
 	google.golang.org/grpc v1.58.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 )

go.sum

@@ -50,14 +50,14 @@ github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyua
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 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/prometheus/client_golang v1.16.0 h1:yk/hx9hDbrGHovbci4BY+pRMfSuuat626eFsHb7tmT8=
-github.com/prometheus/client_golang v1.16.0/go.mod h1:Zsulrv/L9oM40tJ7T815tM89lFEugiJ9HzIqaAx4LKc=
-github.com/prometheus/client_model v0.4.0 h1:5lQXD3cAg1OXBf4Wq03gTrXHeaV0TQvGfUooCfx1yqY=
-github.com/prometheus/client_model v0.4.0/go.mod h1:oMQmHW1/JoDwqLtg57MGgP/Fb1CJEYF2imWWhWtMkYU=
+github.com/prometheus/client_golang v1.17.0 h1:rl2sfwZMtSthVU752MqfjQozy7blglC+1SOtjMAMh+Q=
+github.com/prometheus/client_golang v1.17.0/go.mod h1:VeL+gMmOAxkS2IqfCq0ZmHSL+LjWfWDUmp1mBz9JgUY=
+github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16 h1:v7DLqVdK4VrYkVD5diGdl4sxJurKJEMnODWRJlxV9oM=
+github.com/prometheus/client_model v0.4.1-0.20230718164431-9a2bf3000d16/go.mod h1:oMQmHW1/JoDwqLtg57MGgP/Fb1CJEYF2imWWhWtMkYU=
 github.com/prometheus/common v0.44.0 h1:+5BrQJwiBB9xsMygAB3TNvpQKOwlkc25LbISbrdOOfY=
 github.com/prometheus/common v0.44.0/go.mod h1:ofAIvZbQ1e/nugmZGz4/qCb9Ap1VoSTIO7x0VV9VvuY=
-github.com/prometheus/procfs v0.11.0 h1:5EAgkfkMl659uZPbe9AS2N68a7Cc1TJbPEuGzFuRbyk=
-github.com/prometheus/procfs v0.11.0/go.mod h1:nwNm2aOCAYw8uTR/9bWRREkZFxAUcWzPHWJq+XBB/FM=
+github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k6Bo=
+github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
 github.com/ravilushqa/otelgqlgen v0.13.1 h1:V+zFE75iDd2/CSzy5kKnb+Fi09SsE5535wv9U2nUEFE=
 github.com/ravilushqa/otelgqlgen v0.13.1/go.mod h1:ZIyWykK2paCuNi9k8gk5edcNSwDJuxZaW90vZXpafxw=
 github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
@@ -69,8 +69,8 @@ github.com/vektah/gqlparser/v2 v2.5.6 h1:Ou14T0N1s191eRMZ1gARVqohcbe1e8FrcONScsq
 github.com/vektah/gqlparser/v2 v2.5.6/go.mod h1:z8xXUff237NntSuH8mLFijZ+1tjV1swDbpDqjJmk6ME=
 go.opentelemetry.io/contrib v1.16.1 h1:EpASvVyGx6/ZTlmXzxYfTMZxHROelCeXXa2uLiwltcs=
 go.opentelemetry.io/contrib v1.16.1/go.mod h1:gIzjwWFoGazJmtCaDgViqOSJPde2mCWzv60o0bWPcZs=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.42.0 h1:pginetY7+onl4qN1vl0xW/V/v6OBZ0vVdH+esuJgvmM=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.42.0/go.mod h1:XiYsayHc36K3EByOO6nbAXnAWbrUxdjUROCEeeROOH8=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.44.0 h1:KfYpVmrjI7JuToy5k8XV3nkapjWx48k4E4JOtVstzQI=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.44.0/go.mod h1:SeQhzAEccGVZVEy7aH87Nh0km+utSpo1pTv6eMMop48=
 go.opentelemetry.io/contrib/instrumentation/runtime v0.42.0 h1:EbmAUG9hEAMXyfWEasIt2kmh/WmXUznUksChApTgBGc=
 go.opentelemetry.io/contrib/instrumentation/runtime v0.42.0/go.mod h1:rD9feqRYP24P14t5kmhNMqsqm1jvKmpx2H2rKVw52V8=
 go.opentelemetry.io/otel v1.18.0 h1:TgVozPGZ01nHyDZxK5WGPFB9QexeTMXEH7+tIClWfzs=
@@ -79,14 +79,12 @@ go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.18.0 h1:IAtl+7gua134xcV3Nie
 go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.18.0/go.mod h1:w+pXobnBzh95MNIkeIuAKcHe/Uu/CX2PKIvBP6ipKRA=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.18.0 h1:6pu8ttx76BxHf+xz/H77AUZkPF3cwWzXqAUsXhVKI18=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.18.0/go.mod h1:IOmXxPrxoxFMXdNy7lfDmE8MzE61YPcurbUm0SMjerI=
-go.opentelemetry.io/otel/exporters/prometheus v0.39.0 h1:whAaiHxOatgtKd+w0dOi//1KUxj3KoPINZdtDaDj3IA=
-go.opentelemetry.io/otel/exporters/prometheus v0.39.0/go.mod h1:4jo5Q4CROlCpSPsXLhymi+LYrDXd2ObU5wbKayfZs7Y=
+go.opentelemetry.io/otel/exporters/prometheus v0.41.0 h1:A3/bhjP5SmELy8dcpK+uttHeh9Qrh+YnS16/VzrztRQ=
+go.opentelemetry.io/otel/exporters/prometheus v0.41.0/go.mod h1:mKuXEMi9suyyNJQ99SZCO0mpWGFe0MIALtjd3r6uo7Q=
 go.opentelemetry.io/otel/metric v1.18.0 h1:JwVzw94UYmbx3ej++CwLUQZxEODDj/pOuTCvzhtRrSQ=
 go.opentelemetry.io/otel/metric v1.18.0/go.mod h1:nNSpsVDjWGfb7chbRLUNW+PBNdcSTHD4Uu5pfFMOI0k=
 go.opentelemetry.io/otel/sdk v1.18.0 h1:e3bAB0wB3MljH38sHzpV/qWrOTCFrdZF2ct9F8rBkcY=
 go.opentelemetry.io/otel/sdk v1.18.0/go.mod h1:1RCygWV7plY2KmdskZEDDBs4tJeHG92MdHZIluiYs/M=
-go.opentelemetry.io/otel/sdk/metric v0.40.0 h1:qOM29YaGcxipWjL5FzpyZDpCYrDREvX0mVlmXdOjCHU=
-go.opentelemetry.io/otel/sdk/metric v0.40.0/go.mod h1:dWxHtdzdJvg+ciJUKLTKwrMe5P6Dv3FyDbh8UkfgkVs=
 go.opentelemetry.io/otel/sdk/metric v0.41.0 h1:c3sAt9/pQ5fSIUfl0gPtClV3HhE18DCVzByD33R/zsk=
 go.opentelemetry.io/otel/sdk/metric v0.41.0/go.mod h1:PmOmSt+iOklKtIg5O4Vz9H/ttcRFSNTgii+E1KGyn1w=
 go.opentelemetry.io/otel/trace v1.18.0 h1:NY+czwbHbmndxojTEKiSMHkG2ClNH2PwmcHrdo0JY10=
@@ -95,15 +93,15 @@ go.opentelemetry.io/proto/otlp v1.0.0 h1:T0TX0tmXU8a3CbNXzEKGeU5mIVOdf0oykP+u2lI
 go.opentelemetry.io/proto/otlp v1.0.0/go.mod h1:Sy6pihPLfYHkr3NkUbEhGHFhINUSI/v80hjKIs5JXpM=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
-golang.org/x/net v0.12.0 h1:cfawfvKITfUsFCeJIHJrbSxpeu/E81khclypR0GVT50=
-golang.org/x/net v0.12.0/go.mod h1:zEVYFnQC7m/vmpQFELhcD1EWkZlX69l4oqgmer6hfKA=
+golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
+golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
-golang.org/x/sys v0.12.0 h1:CM0HF96J0hcLAwsHPJZjfdNzs0gftsLfgKt57wWHJ0o=
-golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
-golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/genproto v0.0.0-20230711160842-782d3b101e98 h1:Z0hjGZePRE0ZBWotvtrwxFNrNE9CUAGtplaDK5NNI/g=
 google.golang.org/genproto/googleapis/api v0.0.0-20230711160842-782d3b101e98 h1:FmF5cCW94Ij59cfpoLiwTgodWmm60eEV0CjlsVg2fuw=

grug/math/math.go

@@ -0,0 +1,189 @@
+// grug math is an unbounded precision math library for integers. It is not designed to be performant in any means. But as an example of how one works.
+package math
+
+import "strconv"
+
+type Number []rune
+
+func NewNumber() *Number {
+	return &Number{}
+}
+
+func (*Number) FromString(s string) *Number {
+	for _, a := range s {
+		if !(a >= '0' && a <= '9') {
+			return nil
+		}
+	}
+
+	var n Number = []rune(s)
+	
+	i:=0
+	for range n[:len(n)-1] {
+		if n[i] == 0 || n[i] == '0' {
+			i++
+		} else {
+			break
+		}
+	}
+	n = n[i:]
+
+	return &n
+}
+
+func (*Number) FromInt(i int) *Number {
+	s := strconv.Itoa(i)
+	var n Number = []rune(s)
+	return &n
+}
+
+func (n *Number) String() string {
+	if n == nil || len(*n) == 0 {
+		return "NaN"
+	}
+	return string(*n)
+}
+
+func (n *Number) Add(a *Number) *Number {
+	if n == nil || a == nil {
+		return nil
+	}
+
+	lenN, lenA := len(*n), len(*a)
+	sum := make(Number, max(lenN, lenA)+1)
+
+	for i := range sum[:len(sum)-1] {
+		ii := len(sum) - i - 1
+
+		switch {
+		case lenN == lenA:
+			j := (*n)[lenN-i-1]
+			k := (*a)[lenA-i-1]
+
+			sum[ii-1], sum[ii] = add(j, k, sum[ii])
+
+		case lenN > lenA:
+			j := (*n)[lenN-i-1]
+			k := '0'
+			if i < lenA {
+				k = (*a)[lenA-i-1]
+			}
+
+			sum[ii-1], sum[ii] = add(j, k, sum[ii])
+
+		case lenN < lenA:
+			j := '0'
+			if i < lenN {
+				j = (*n)[lenN-i-1]
+			}
+			k := (*a)[lenA-i-1]
+
+			sum[ii-1], sum[ii] = add(j, k, sum[ii])
+		}
+	}
+
+	// Trim the extra 0 if present
+	if sum[0] == 0 || sum[0] == '0' {
+		sum = sum[1:]
+	}
+
+	return &sum
+}
+
+
+func (n *Number) Sub(s *Number) *Number {
+	if n == nil || s == nil {
+		return nil
+	}
+
+	lenN, lenA := len(*n), len(*s)
+	sum := make(Number, max(lenN, lenA)+1)
+
+	for i := range sum[:len(sum)-1] {
+		ii := len(sum) - i - 1
+
+		switch {
+		case lenN == lenA:
+			j := (*n)[lenN-i-1]
+			k := (*s)[lenA-i-1]
+			c := '0'
+			if i+1 < lenN {
+				c = (*n)[lenN-i-2]
+			}
+
+			sum[ii-1], sum[ii] = sub(j, k, c)
+
+		case lenN > lenA:
+			j := (*n)[lenN-i-1]
+			k := '0'
+			if i < lenA {
+				k = (*s)[lenA-i-1]
+			}
+			c := '0'
+			if i+1 < lenN {
+				c = (*n)[lenN-i-2]
+			}
+
+			sum[ii-1], sum[ii] = sub(j, k, c)
+			if i+1 < lenN {
+				(*n)[lenN-i-2] =sum[ii-1]
+			}
+
+		case lenN < lenA:
+			j := '0'
+			if i < lenN {
+				j = (*n)[lenN-i-1]
+			}
+			k := (*s)[lenA-i-1]
+			c := '0'
+			if i+1 < lenN {
+				c = (*n)[lenN-i-2]
+			}
+
+			sum[ii-1], sum[ii] = sub(j, k, c)
+		}
+	}
+
+	// Trim the extra 0 if present
+	i:=0
+	for range sum[:len(sum)-1] {
+		if sum[i] == 0 || sum[i] == '0' {
+			i++
+		} else {
+			break
+		}
+	}
+	sum = sum[i:]
+
+
+	return &sum
+}
+
+
+func friends(r rune) (int32, int32) {
+	return 1, 10 - int32(r-'0')
+}
+func add(a, b, c rune) (rune, rune) {
+	up, dn := friends(b)
+	if c == 0 {
+		c = '0'
+	}
+	a = a + c - '0'
+
+	if a-dn < '0' {
+		return '0', a + b - '0'
+	}
+	return c + up, a - dn
+}
+
+func sub(a, b, c rune) (rune, rune) {
+	dn, up := friends(b)
+	if c == 0 {
+		c = '0'
+	}
+
+	if a+up > '9' {
+		return c, a - b + '0'
+	}
+	return c - dn, a + up
+}

grug/math/math_test.go

@@ -0,0 +1,74 @@
+package math_test
+
+import (
+	"testing"
+
+	"github.com/matryer/is"
+	"go.sour.is/pkg/grug/math"
+)
+
+func TestNumber(t *testing.T) {
+	is := is.New(t)
+
+	n := math.NewNumber().FromInt(100)
+	is.Equal(n.String(), "100")
+
+	n = n.FromString("00001")
+	is.Equal(n.String(), "1")
+
+	n = n.FromString("1x0")
+	is.True(n==nil)
+	is.Equal(n.String(), "NaN")
+
+	n = n.FromString("200")
+	is.True(n!=nil)
+	is.Equal(n.String(), "200")
+
+	n = (&math.Number{}).FromString("300")
+	is.True(n!=nil)
+	is.Equal(n.String(), "300")
+}
+
+func TestAdd(t *testing.T) {
+	is := is.New(t)
+
+	n := math.NewNumber().FromString("100")
+
+	n = n.Add(nil)
+	is.Equal(n.String(), "NaN")
+
+	n = n.FromInt(100)
+	n = n.Add(n.FromString("900"))
+	is.Equal(n.String(), "1000")
+
+	n = n.Add(math.NewNumber())
+	is.Equal(n.String(), "1000")
+
+	n = n.Add(n.FromString("10"))
+	is.Equal(n.String(), "1010")
+
+	n = n.Add(n.FromString("10000"))
+	is.Equal(n.String(), "11010")
+
+	n = n.Add(n.FromString("9000"))
+	is.Equal(n.String(), "20010")
+}
+
+func TestSub(t *testing.T) {
+	is := is.New(t)
+
+	n := math.NewNumber()
+
+	// n = n.FromString("100")
+	// n = n.Sub(n.FromInt(100))
+	// is.Equal(n.String(), "0")
+
+	// n = n.FromString("200")
+	// n = n.Sub(n.FromInt(100))
+	// is.Equal(n.String(), "100")
+
+	n = n.FromString("100")
+	n = n.Sub(n.FromInt(50))
+	is.Equal(n.String(), "50")
+
+}

lg/tracer.go

@@ -71,7 +71,7 @@ func (w wrapSpan) AddEvent(name string, options ...trace.EventOption) {
 		args[2*i+1] = a.Value
 	}
 
-	slog.Info(name, args...)
+	slog.Debug(name, args...)
 }
 
 func (w wrapSpan) RecordError(err error, options ...trace.EventOption) {
@@ -142,7 +142,7 @@ func initTracing(ctx context.Context, name string) (context.Context, func() erro
 		return ctx, nil
 	}
 
-	exporterAddr := env.Default("EV_TRACE_ENDPOINT", "")
+	exporterAddr := env.Default("TRACE_ENDPOINT", "")
 	if exporterAddr == "" {
 		return ctx, nil
 	}

service/service.go

@@ -93,7 +93,7 @@ func (s *Harness) Run(ctx context.Context, appName, version string) error {
 		span.End()
 	}
 
-	g, _ := errgroup.WithContext(ctx)
+	g, ctx := errgroup.WithContext(ctx)
 	g.Go(func() error {
 		<-ctx.Done()
 		// shutdown jobs
@@ -111,7 +111,10 @@ func (s *Harness) Run(ctx context.Context, appName, version string) error {
 	close(s.onRunning)
 
 	err := g.Wait()
+	if err != nil {
+		log.Printf("Shutdown due to error: %s", err)
 
+	}
 	return err
 }