Convert sloghuman to key=value pair format

This format is consistent with Go's new official `slog`, `zerolog` and many others. It is also far more readable than JSON, and a growing number of libaries and tools are able to parse it.
coder · ammario · May 9, 2023 · May 7, 2023 · May 8, 2023 · May 8, 2023
commit 7ef97ddbd48c889ddaffc3c9816c9158faec460e
diff --git a/go.mod b/go.mod
@@ -1,15 +1,31 @@
 module cdr.dev/slog
 
-go 1.13
+go 1.20
 
 require (
 	cloud.google.com/go v0.26.0
-	github.com/alecthomas/chroma v0.10.0
-	github.com/fatih/color v1.13.0
+	github.com/charmbracelet/lipgloss v0.7.1
 	github.com/google/go-cmp v0.5.3
+	github.com/muesli/termenv v0.15.1
 	go.opencensus.io v0.24.0
-	go.uber.org/goleak v1.2.1 // indirect
+	go.uber.org/goleak v1.2.1
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2
 	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
 )
+
+require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
+	github.com/golang/protobuf v1.4.3 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/muesli/reflow v0.3.0 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	golang.org/x/net v0.0.0-20201110031124-69a78807bb2b // indirect
+	golang.org/x/sys v0.6.0 // indirect
+	golang.org/x/text v0.3.3 // indirect
+	google.golang.org/grpc v1.33.2 // indirect
+	google.golang.org/protobuf v1.25.0 // indirect
+)
diff --git a/go.sum b/go.sum
@@ -1,22 +1,20 @@
 cloud.google.com/go v0.26.0 h1:e0WKqKTd5BnrG8aKH3J3h+QvEIQtSUcf2n5UZ5ZgLtQ=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
-github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/charmbracelet/lipgloss v0.7.1 h1:17WMwi7N1b1rVWOjMT+rCh7sQkvDU75B2hbZpc5Kc1E=
+github.com/charmbracelet/lipgloss v0.7.1/go.mod h1:yG0k3giv8Qj8edTCbbg6AlQ5e8KNWpFujkNawKNhE2c=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
-github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
-github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
-github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -39,21 +37,26 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.3 h1:x95R7cp+rSeeqAMI2knLtQ0DKlaBhv2NrtrOvafPHRo=
 github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/mattn/go-colorable v0.1.9 h1:sqDoxXbdeALODt0DAeJCVp38ps9ZogZEAXjus69YV3U=
-github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
-github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.17 h1:BTarxUcIeDqL27Mc+vyvdWYSL28zpIhv3RoTdsLMPng=
+github.com/mattn/go-isatty v0.0.17/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
+github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
+github.com/muesli/termenv v0.15.1 h1:UzuTb/+hhlBugQz28rpzey4ZuKcZ03MeKsoG7IJZIxs=
+github.com/muesli/termenv v0.15.1/go.mod h1:HeAQPTzpfs016yGtA4g00CsdYnVLJvxsS4ANqrZs2sQ=
 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_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
@@ -83,11 +86,10 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -121,9 +123,7 @@ google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

diff --git a/internal/entryhuman/entry.go b/internal/entryhuman/entry.go
@@ -4,17 +4,15 @@ package entryhuman
 
 import (
 	"bytes"
-	"encoding/json"
 	"fmt"
 	"io"
 	"os"
-	"path/filepath"
-	"runtime/debug"
 	"strconv"
 	"strings"
 	"time"
 
-	"github.com/fatih/color"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/muesli/termenv"
 	"go.opencensus.io/trace"
 	"golang.org/x/crypto/ssh/terminal"
 	"golang.org/x/xerrors"
@@ -34,13 +32,20 @@ func StripTimestamp(ent string) (time.Time, string, error) {
 // TimeFormat is a simplified RFC3339 format.
 const TimeFormat = "2006-01-02 15:04:05.000"
 
-func c(w io.Writer, attrs ...color.Attribute) *color.Color {
-	c := color.New(attrs...)
-	c.DisableColor()
+var (
+	renderer = lipgloss.NewRenderer(os.Stdout, termenv.WithUnsafe())
+
+	loggerNameStyle   = renderer.NewStyle().Foreground(lipgloss.Color("#A47DFF"))
+	keyStyle          = renderer.NewStyle().Foreground(lipgloss.Color("#606366"))
+	multiLineKeyStyle = renderer.NewStyle().Foreground(lipgloss.Color("#79b8ff"))
+)
+
+func render(w io.Writer, st lipgloss.Style, s string) string {
 	if shouldColor(w) {
-		c.EnableColor()
+		ss := st.Render(s)
+		return ss
 	}
-	return c
+	return s
 }
 
 // Fmt returns a human readable format for ent.
@@ -50,36 +55,36 @@ func c(w io.Writer, attrs ...color.Attribute) *color.Color {
 // We also do not indent the fields as go's test does that automatically
 // for extra lines in a log so if we did it here, the fields would be indented
 // twice in test logs. So the Stderr logger indents all the fields itself.
-func Fmt(w io.Writer, ent slog.SinkEntry) string {
-	ents := c(w, color.Reset).Sprint("")
+func Fmt(buf io.StringWriter, termW io.Writer, ent slog.SinkEntry,
+) {
 	ts := ent.Time.Format(TimeFormat)
-	ents += ts + " "
+	buf.WriteString(ts + " ")
 
-	level := "[" + ent.Level.String() + "]"
-	level = c(w, levelColor(ent.Level)).Sprint(level)
-	ents += fmt.Sprintf("%v\t", level)
+	level := ent.Level.String()
+	if len(level) > 4 {
+		level = level[:4]
+	}
+	level = "[" + level + "]"
+	buf.WriteString(render(termW, levelStyle(ent.Level), level))
+	buf.WriteString("\t")
 
 	if len(ent.LoggerNames) > 0 {
 		loggerName := "(" + quoteKey(strings.Join(ent.LoggerNames, ".")) + ")"
-		loggerName = c(w, color.FgMagenta).Sprint(loggerName)
-		ents += fmt.Sprintf("%v\t", loggerName)
+		buf.WriteString(render(termW, loggerNameStyle, loggerName))
+		buf.WriteString("\t")
 	}
 
-	hpath, hfn := humanPathAndFunc(ent.File, ent.Func)
-	loc := fmt.Sprintf("<%v:%v>\t%v", hpath, ent.Line, hfn)
-	loc = c(w, color.FgCyan).Sprint(loc)
-	ents += fmt.Sprintf("%v\t", loc)
-
 	var multilineKey string
 	var multilineVal string
 	msg := strings.TrimSpace(ent.Message)
 	if strings.Contains(msg, "\n") {
 		multilineKey = "msg"
 		multilineVal = msg
 		msg = "..."
+		msg = quote(msg)
+		buf.WriteString(msg)
+
 	}
-	msg = quote(msg)
-	ents += msg
 
 	if ent.SpanContext != (trace.SpanContext{}) {
 		ent.Fields = append(slog.M(
@@ -111,48 +116,56 @@ func Fmt(w io.Writer, ent slog.SinkEntry) string {
 		multilineVal = s
 	}
 
-	if len(ent.Fields) > 0 {
-		// No error is guaranteed due to slog.Map handling errors itself.
-		fields, _ := json.MarshalIndent(ent.Fields, "", "")
-		fields = bytes.ReplaceAll(fields, []byte(",\n"), []byte(", "))
-		fields = bytes.ReplaceAll(fields, []byte("\n"), []byte(""))
-		fields = formatJSON(w, fields)
-		ents += "\t" + string(fields)
+	for i, f := range ent.Fields {
+		if i < len(ent.Fields) {
+			buf.WriteString("\t")
+		}
+		buf.WriteString(render(termW, keyStyle, f.Name+"="))
+		valueStr := fmt.Sprintf("%+v", f.Value)
+		buf.WriteString(quote(valueStr))
 	}
 
 	if multilineVal != "" {
 		if msg != "..." {
-			ents += " ..."
+			buf.WriteString(" ...")
 		}
 
 		// Proper indentation.
 		lines := strings.Split(multilineVal, "\n")
 		for i, line := range lines[1:] {
 			if line != "" {
-				lines[i+1] = c(w, color.Reset).Sprint("") + strings.Repeat(" ", len(multilineKey)+4) + line
+				lines[i+1] = strings.Repeat(" ", len(multilineKey)+4) + line
 			}
 		}
 		multilineVal = strings.Join(lines, "\n")
 
-		multilineKey = c(w, color.FgBlue).Sprintf(`"%v"`, multilineKey)
-		ents += fmt.Sprintf("\n%v: %v", multilineKey, multilineVal)
+		multilineKey = render(termW, multiLineKeyStyle, multilineKey)
+		buf.WriteString("\n")
+		buf.WriteString(multilineKey)
+		buf.WriteString("= ")
+		buf.WriteString(multilineVal)
 	}
-
-	return ents
 }
 
-func levelColor(level slog.Level) color.Attribute {
+var (
+	levelDebugStyle = renderer.NewStyle().Foreground(lipgloss.Color("#ffffff"))
+	levelInfoStyle  = renderer.NewStyle().Foreground(lipgloss.Color("#0091FF"))
+	levelWarnStyle  = renderer.NewStyle().Foreground(lipgloss.Color("#FFCF0D"))
+	levelErrorStyle = renderer.NewStyle().Foreground(lipgloss.Color("#FF5A0D"))
+)
+
+func levelStyle(level slog.Level) lipgloss.Style {
 	switch level {
 	case slog.LevelDebug:
-		return color.Reset
+		return levelDebugStyle
 	case slog.LevelInfo:
-		return color.FgBlue
+		return levelInfoStyle
 	case slog.LevelWarn:
-		return color.FgYellow
-	case slog.LevelError:
-		return color.FgRed
+		return levelWarnStyle
+	case slog.LevelError, slog.LevelFatal, slog.LevelCritical:
+		return levelErrorStyle
 	default:
-		return color.FgHiRed
+		panic("unknown level")
 	}
 }
 
@@ -196,64 +209,3 @@ func quoteKey(key string) string {
 	// Replace spaces in the map keys with underscores.
 	return strings.ReplaceAll(key, " ", "_")
 }
-
-var mainPackagePath string
-var mainModulePath string
-
-func init() {
-	// Unfortunately does not work for tests yet :(
-	// See https://github.com/golang/go/issues/33976
-	bi, ok := debug.ReadBuildInfo()
-	if !ok {
-		return
-	}
-	mainPackagePath = bi.Path
-	mainModulePath = bi.Main.Path
-}
-
-// humanPathAndFunc takes the absolute path to a file and an absolute module path to a
-// function in that file and returns the module path to the file. It also returns
-// the path to the function stripped of its module prefix.
-//
-// If the file is in the main Go module then its path is returned
-// relative to the main Go module's root.
-//
-// fn is from https://pkg.go.dev/runtime#Func.Name
-func humanPathAndFunc(filename, fn string) (hpath, hfn string) {
-	// pkgDir is the dir of the pkg.
-	//   e.g. cdr.dev/slog/internal
-	// base is the package name and the function name separated by a period.
-	//   e.g. entryhuman.humanPathAndFunc
-	// There can be multiple periods when methods of types are involved.
-	pkgDir, base := filepath.Split(fn)
-	s := strings.Split(base, ".")
-	pkg := s[0]
-	hfn = strings.Join(s[1:], ".")
-
-	if pkg == "main" {
-		// This happens with go build main.go
-		if mainPackagePath == "command-line-arguments" {
-			// Without a real mainPath, we can't find the path to the file
-			// relative to the module. So we just return the base.
-			return filepath.Base(filename), hfn
-		}
-		// Go doesn't return the full main path in runtime.Func.Name()
-		// It just returns the path "main"
-		// Only runtime.ReadBuildInfo returns it so we have to check and replace.
-		pkgDir = mainPackagePath
-		// pkg main isn't reflected on the disk so we should not add it
-		// into the pkgpath.
-		pkg = ""
-	}
-
-	hpath = filepath.Join(pkgDir, pkg, filepath.Base(filename))
-
-	if mainModulePath != "" {
-		relhpath, err := filepath.Rel(mainModulePath, hpath)
-		if err == nil {
-			hpath = "./" + relhpath
-		}
-	}
-
-	return hpath, hfn
-}