feat: add function name keyword option (#129)

Author: go-to-k

README.md

@@ -50,6 +50,8 @@ Also this tool can support output results **as a CSV file.**
     - The region to output is selected interactively and does not need to be specified.
 - -o, --output: optional
   - Output file path for CSV format
+- -k, --keyword: optional
+  - Keyword for function name filtering (case-insensitive)
 
 ## Input flow
 
@@ -59,6 +61,12 @@ Also this tool can support output results **as a CSV file.**
 ❯ lamver
 ```
 
+You can specify `-k, --keyword` option. This is a keyword for **function name filtering (case-insensitive)**.
+
+```sh
+❯ lamver -k goto
+```
+
 ### Choose regions
 
 ```sh
@@ -126,7 +134,9 @@ Also this tool can support output results **as a CSV file.**
 
 You can search function names in a **case-insensitive**.
 
-It can be **empty.**
+**Empty** input will output **all functions**.
+
+This phase is skipped if you specify `-k` option.
 
 ```sh
 Filter a keyword of function names(case-insensitive): test-goto

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/rs/zerolog v1.29.0
 	github.com/urfave/cli/v2 v2.25.0
+	go.uber.org/goleak v1.2.1
 	golang.org/x/sync v0.3.0
 )
 
@@ -36,7 +37,6 @@ require (
 	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
-	go.uber.org/goleak v1.2.1 // indirect
 	golang.org/x/sys v0.1.0 // indirect
 	golang.org/x/term v0.0.0-20210503060354-a79de5458b56 // indirect
 	golang.org/x/text v0.3.7 // indirect

go.sum

@@ -78,8 +78,8 @@ github.com/rs/zerolog v1.29.0/go.mod h1:NILgTygv/Uej1ra5XxGf82ZFSLk58MFGAUS2o6us
 github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
 github.com/urfave/cli/v2 v2.25.0 h1:ykdZKuQey2zq0yin/l7JOm9Mh+pg72ngYMeB0ABn6q8=
 github.com/urfave/cli/v2 v2.25.0/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=

internal/app/app.go

@@ -18,10 +18,11 @@ import (
 const SDKRetryMaxAttempts = 3
 
 type App struct {
-	Cli               *cli.App
-	Profile           string
-	DefaultRegion     string
-	CSVOutputFilePath string
+	Cli                 *cli.App
+	Profile             string
+	DefaultRegion       string
+	CSVOutputFilePath   string
+	FunctionNameKeyword string
 }
 
 func NewApp(version string) *App {
@@ -49,6 +50,12 @@ func NewApp(version string) *App {
 				Usage:       "Output file path for CSV format",
 				Destination: &app.CSVOutputFilePath,
 			},
+			&cli.StringFlag{
+				Name:        "keyword",
+				Aliases:     []string{"k"},
+				Usage:       "Keyword for function name filtering (case-insensitive)",
+				Destination: &app.FunctionNameKeyword,
+			},
 		},
 	}
 
@@ -107,8 +114,13 @@ func (a *App) getAction() func(c *cli.Context) error {
 			return nil
 		}
 
-		keywordLabel := "Filter a keyword of function names(case-insensitive): "
-		keyword := io.InputKeywordForFilter(keywordLabel)
+		var keyword string
+		if a.FunctionNameKeyword != "" {
+			keyword = a.FunctionNameKeyword
+		} else {
+			keywordLabel := "Filter a keyword of function names(case-insensitive): "
+			keyword = io.InputKeywordForFilter(keywordLabel)
+		}
 
 		createFunctionListInput := &action.CreateFunctionListInput{
 			Ctx:           c.Context,