feat: support columns customization config

.github/workflows/check.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: '1.20.6'
+          go-version: '1.21.3'
         id: go
 
       - name: Check out code into the Go module directory

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: '1.20.4'
+          go-version: '1.21.3'
 
       - name: Fetch vendor
         run: make vendor

.gitignore

@@ -17,3 +17,6 @@ bin
 
 # Dependency directories (remove the comment below to include it)
 vendor/
+
+# Config
+.jlv.jsonc

.golangci.json

@@ -33,7 +33,9 @@
       "rowserrcheck",
       "depguard",
       "ireturn",
-      "gomoddirectives"
+      "gomoddirectives",
+      "tagalign",
+      "testifylint"
     ]
   },
   "linters-settings": {

Makefile

@@ -1,4 +1,4 @@
-GOLANG_CI_LINT_VER:=v1.53.3
+GOLANG_CI_LINT_VER:=v1.55.2
 OUT_BIN?=${PWD}/bin/jlv
 COVER_PACKAGES=./...
 VERSION?=${shell git describe --tags}

README.md

@@ -33,6 +33,7 @@ The application is designed to help in visualization, navigation, and analyzing
         - [Package](#package)
         - [Standalone Binary](#standalone-binary)
         - [Source](#source)
+    - [Customization](#customization)
     - [Resources](#resources)
     - [Contribution](#contribution)
     - [License](#license)
@@ -89,6 +90,69 @@ chmod +x /usr/local/bin/jlv
 # jlv application.log
 ```
 
+## Customization
+
+The application will look for the config `.jlv.jsonc` in the working directory or in the home directory:
+- `$PWD/.jlv.jsonc`;
+- `$HOME/.jlv.jsonc`.
+
+The Json path supports the described in [yalp/jsonpath](https://github.com/yalp/jsonpath#jsonpath-quick-intro) syntax.
+
+Example configuration:
+```json
+{
+    // Comments are allowed.
+    "fields": [
+        {
+            "title": "Time", // Max length is 32.
+            // Kind affects rendering. There are:
+            // * time;
+            // * level;
+            // * message;
+            // * any.
+            "kind": "time",
+            "ref": [
+                // The application will display the first matched value.
+                "$.timestamp",
+                "$.time",
+                "$.t",
+                "$.ts"
+            ],
+            "width": 30
+        },
+        {
+            "title": "Level",
+            "kind": "level",
+            "ref": [
+                "$.level",
+                "$.lvl",
+                "$.l"
+            ],
+            "width": 10
+        },
+        {
+            "title": "Message",
+            "kind": "message",
+            "ref": [
+                "$.message",
+                "$.msg",
+                "$.error",
+                "$.err"
+            ],
+            "width": 0 // The width will be calculated automatically.
+        },
+        {
+            "title": "Custom",
+            "kind": "any",
+            "ref": [
+                "$.custom"
+            ],
+            "width": 0
+        }
+    ]
+}
+```
+
 ## Resources
 
 Alternatives:

cmd/jlv/main.go

@@ -3,18 +3,27 @@ package main
 import (
 	"fmt"
 	"os"
+	"path"
 
 	tea "github.com/charmbracelet/bubbletea"
 
 	"github.com/hedhyw/json-log-viewer/internal/app"
+	"github.com/hedhyw/json-log-viewer/internal/pkg/config"
 )
 
+const configFileName = ".jlv.jsonc"
+
 func main() {
 	if len(os.Args) != 2 {
 		fatalf("Invalid arguments, usage: %s file.log\n", os.Args[0])
 	}
 
-	appModel := app.NewModel(os.Args[1])
+	cfg, err := readConfig()
+	if err != nil {
+		fatalf("Error reading config: %s\n", err)
+	}
+
+	appModel := app.NewModel(os.Args[1], cfg)
 	program := tea.NewProgram(appModel, tea.WithAltScreen())
 
 	if _, err := program.Run(); err != nil {
@@ -26,3 +35,21 @@ func fatalf(message string, args ...any) {
 	fmt.Fprintf(os.Stderr, message, args...)
 	os.Exit(1)
 }
+
+// readConfig tries to read config from working directory or home directory.
+// If configs are not found, then it returns a default configuration.
+func readConfig() (*config.Config, error) {
+	paths := []string{}
+
+	workDir, err := os.Getwd()
+	if err == nil {
+		paths = append(paths, path.Join(workDir, configFileName))
+	}
+
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		paths = append(paths, path.Join(homeDir, configFileName))
+	}
+
+	return config.Read(paths...)
+}

go.mod

@@ -1,6 +1,6 @@
 module github.com/hedhyw/json-log-viewer
 
-go 1.20
+go 1.21
 
 replace github.com/antonmedv/fx => github.com/hedhyw/fx v0.0.1
 
@@ -11,17 +11,23 @@ require (
 	github.com/charmbracelet/bubbles v0.16.1
 	github.com/charmbracelet/bubbletea v0.24.2
 	github.com/charmbracelet/lipgloss v0.7.1
+	github.com/go-playground/validator/v10 v10.16.0
+	github.com/hedhyw/jsoncjson v1.1.0
 	github.com/muesli/reflow v0.3.0
 	github.com/stretchr/testify v1.8.4
-	github.com/valyala/fastjson v1.6.4
+	github.com/yalp/jsonpath v0.0.0-20180802001716-5cc68e5049a0
 )
 
 require (
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/kr/pretty v0.3.0 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
@@ -33,6 +39,8 @@ require (
 	github.com/muesli/termenv v0.15.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
+	golang.org/x/crypto v0.7.0 // indirect
+	golang.org/x/net v0.8.0 // indirect
 	golang.org/x/sync v0.3.0 // indirect
 	golang.org/x/sys v0.10.0 // indirect
 	golang.org/x/term v0.10.0 // indirect

go.sum

@@ -9,12 +9,25 @@ github.com/charmbracelet/lipgloss v0.7.1/go.mod h1:yG0k3giv8Qj8edTCbbg6AlQ5e8KNW
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81 h1:q2hJAaP1k2wIvVRd/hEHD7lacgqrCPS+k8g1MndzfWY=
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81/go.mod h1:YynlIjWYF8myEu6sdkwKIvGQq+cOckRm6So2avqoYAk=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+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/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
+github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
+github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
+github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
+github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
+github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
+github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
+github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
+github.com/go-playground/validator/v10 v10.16.0 h1:x+plE831WK4vaKHO/jpgUGsvLKIqRRkz6M78GuJAfGE=
+github.com/go-playground/validator/v10 v10.16.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
 github.com/hedhyw/bubbles v0.0.2 h1:OqPNGSunmk2B8wE4RcZ4oQvhWkCZNYt8EY8UXuuXJuw=
 github.com/hedhyw/bubbles v0.0.2/go.mod h1:XUdibuVUiMfcfKTRla58bmY3TWsdjgF+Rp8pvimQLck=
 github.com/hedhyw/fx v0.0.1 h1:h1jJaDnJ6qewSKiD7yooAGZjQwS+yazFcoRgtWV0Rq8=
 github.com/hedhyw/fx v0.0.1/go.mod h1:mT/W/Ln5xzLNEh+wGWAsPITPpQV5w6ne7klykEUS78w=
+github.com/hedhyw/jsoncjson v1.1.0 h1:uw/aqmbSXAQNJHDPLb+DpwlPNzMREGIsrs+TIwPk+f0=
+github.com/hedhyw/jsoncjson v1.1.0/go.mod h1:++nXlbEXzRMcqkoDLvH5I/z5qBkacAWSZDt1u6osUPc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
@@ -23,6 +36,8 @@ 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/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
+github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
 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 v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
@@ -53,10 +68,20 @@ github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
 github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rogpeppe/go-internal v1.6.1 h1:/FiVV8dS/e+YqF2JvO3yXRFbBLTIuSDkuC7aBOAvL+k=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
+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 v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/valyala/fastjson v1.6.4 h1:uAUNq9Z6ymTgGhcm0UynUAB6tlbakBrz6CQFax3BXVQ=
-github.com/valyala/fastjson v1.6.4/go.mod h1:CLCAqky6SMuOcxStkYQvblddUtoRxhYMGLrsQns1aXY=
+github.com/yalp/jsonpath v0.0.0-20180802001716-5cc68e5049a0 h1:6fRhSjgLCkTD3JnJxvaJ4Sj+TYblw757bqYgZaOq5ZY=
+github.com/yalp/jsonpath v0.0.0-20180802001716-5cc68e5049a0/go.mod h1:/LWChgwKmvncFJFHJ7Gvn9wZArjbV5/FppcK2fKk/tI=
+golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
+golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
+golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
+golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 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 v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -72,5 +97,6 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+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=

internal/app/app.go

@@ -6,11 +6,14 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/lipgloss"
 
+	"github.com/hedhyw/json-log-viewer/internal/pkg/config"
 	"github.com/hedhyw/json-log-viewer/internal/pkg/source"
 )
 
 // Model of the application.
 type Model struct {
+	config *config.Config
+
 	baseStyle   lipgloss.Style
 	footerStyle lipgloss.Style
 
@@ -32,16 +35,18 @@ type Model struct {
 
 // NewModel initializes a new application model. It accept the path
 // to the file with logs.
-func NewModel(path string) Model {
+func NewModel(path string, cfg *config.Config) Model {
 	tableLogs := table.New(
-		table.WithColumns(getColumns(100)),
+		table.WithColumns(getColumns(100, cfg)),
 		table.WithFocused(true),
 		table.WithHeight(7),
 	)
 
 	tableLogs.SetStyles(getTableStyles())
 
 	return Model{
+		config: cfg,
+
 		baseStyle:   getBaseStyle(),
 		footerStyle: getFooterStyle(),
 
@@ -62,7 +67,7 @@ func NewModel(path string) Model {
 
 // Init implements team.Model interface.
 func (m Model) Init() tea.Cmd {
-	return source.LoadLogsFromFile(m.fileLogPath)
+	return source.LoadLogsFromFile(m.fileLogPath, m.config)
 }
 
 // Update implements team.Model interface.

internal/app/app_test.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/hedhyw/json-log-viewer/assets"
 	"github.com/hedhyw/json-log-viewer/internal/app"
+	"github.com/hedhyw/json-log-viewer/internal/pkg/config"
 	"github.com/hedhyw/json-log-viewer/internal/pkg/tests"
 )
 
@@ -220,7 +221,7 @@ func newTestModel(tb testing.TB, content []byte) app.Model {
 
 	testFile := tests.RequireCreateFile(tb, content)
 
-	appModel := app.NewModel(testFile)
+	appModel := app.NewModel(testFile, config.GetDefaultConfig())
 	cmd := appModel.Init()
 
 	appModel, _ = toAppModel(appModel.Update(cmd()))

internal/app/handler.go

@@ -61,7 +61,7 @@ func (m Model) handleWindowSizeMsg(msg tea.WindowSizeMsg) Model {
 	x, y := m.baseStyle.GetFrameSize()
 	m.table.SetWidth(msg.Width - x*2)
 	m.table.SetHeight(msg.Height - y*2 - footerSize)
-	m.table.SetColumns(getColumns(m.table.Width() - 10))
+	m.table.SetColumns(getColumns(m.table.Width()-10, m.config))
 	m.lastWindowSize = msg
 
 	return m