Linter fixes, new feature of allowing multiple directories at startup, other code improvements

.golangci.yaml

@@ -128,7 +128,6 @@ linters-settings:
     # Ignore comments when counting lines.
     # Default false
     ignore-comments: true
-
   gochecksumtype:
     # Presence of `default` case in switch statements satisfies exhaustiveness, if all members are not listed.
     # Default: true
@@ -276,8 +275,7 @@ linters:
     - dupl # tool for code clone detection
     - durationcheck # checks for two durations multiplied together
     - errname # checks that sentinel errors are prefixed with the Err and error types are suffixed with the Error
-    # Todo enable
-    #- errorlint # finds code that will cause problems with the error wrapping scheme introduced in Go 1.13
+    - errorlint # finds code that will cause problems with the error wrapping scheme introduced in Go 1.13
     - exhaustive # checks exhaustiveness of enum switch statements
     - exptostd # detects functions from golang.org/x/exp/ that can be replaced by std functions
     - fatcontext # detects nested contexts in loops
@@ -286,27 +284,24 @@ linters:
     #- funlen # tool for detection of long functions
     - gocheckcompilerdirectives # validates go compiler directive comments (//go:)
     # Todo enable - This is too much for us right now
-    # - gochecknoglobals # checks that no global variables exist
+    - gochecknoglobals # checks that no global variables exist
     - gochecknoinits # checks that no init functions are present in Go code
     - gochecksumtype # checks exhaustiveness on Go "sum types"
     # Todo enable - Need to refactor many functions
     # - gocognit # computes and checks the cognitive complexity of functions
     - goconst # finds repeated strings that could be replaced by a constant
-    # Todo enable - Some few changes. There are good suggestions
-    # - gocritic # provides diagnostics that check for bugs, performance and style issues
+    - gocritic # provides diagnostics that check for bugs, performance and style issues
     # Todo enable
     #- gocyclo # computes and checks the cyclomatic complexity of functions
-    # Todo enable - too much for us
-    #- godot # checks if comments end in a period
+    #- godot # checks if comments end in a period # Too much for us right now
     - goimports # in addition to fixing imports, goimports also formats your code in the same style as gofmt
     - gomoddirectives # manages the use of 'replace', 'retract', and 'excludes' directives in go.mod
     - goprintffuncname # checks that printf-like functions are named with f at the end
     # Todo enable - ignore for a few int overflow, and fix file permissions
     # weak md5 cryptography, Subprocess launched with a potential tainted input
     # - gosec # inspects source code for security problems
     - iface # checks the incorrect use of interfaces, helping developers avoid interface pollution
-    # Todo enable : Need fixes
-    # - intrange # finds places where for loops could make use of an integer range
+    - intrange # finds places where for loops could make use of an integer range
     # Todo enable : Need many fixes
     # - lll # reports long lines
     - loggercheck # checks key value pairs for common logger libraries (kitlog,klog,logr,zap)
@@ -323,39 +318,32 @@ linters:
     - nilnil # checks that there is no simultaneous return of nil error and an invalid value
     - noctx # finds sending http request without context.Context
     - nolintlint # reports ill-formed or insufficient nolint directives
-    # Todo enable - maybe too strict for us
-    # - nonamedreturns # reports all named returns
+    - nonamedreturns # reports all named returns
     - nosprintfhostport # checks for misuse of Sprintf to construct a host with port in a URL
     - perfsprint # checks that fmt.Sprintf can be replaced with a faster alternative
     - predeclared # finds code that shadows one of Go's predeclared identifiers
     - promlinter # checks Prometheus metrics naming via promlint
     - protogetter # reports direct reads from proto message fields when getters should be used
-    # Todo enable - Some hard to fix things
-    # - reassign # checks that package variables are not reassigned
+    - reassign # checks that package variables are not reassigned
     # Todo enable - Issue due to model struct
     # - recvcheck # checks for receiver type consistency
-    # Todo enable : Many changes
-    # - revive # fast, configurable, extensible, flexible, and beautiful linter for Go, drop-in replacement of golint
+    - revive # fast, configurable, extensible, flexible, and beautiful linter for Go, drop-in replacement of golint
     - rowserrcheck # checks whether Err of rows is checked successfully
     # Todo enable - Need to use non-root logger
     # - sloglint # ensure consistent code style when using log/slog
     - spancheck # checks for mistakes with OpenTelemetry/Census spans
     - sqlclosecheck # checks that sql.Rows and sql.Stmt are closed
-    # Todo enable : Many changes, but good changes.
-    # - stylecheck # is a replacement for golint
+    - stylecheck # is a replacement for golint
     - testableexamples # checks if examples are testable (have an expected output)
     - testifylint # checks usage of github.com/stretchr/testify
-    # Todo enable - Might be too strict for us
-    # - testpackage # makes you use a separate _test package
+    # - testpackage # makes you use a separate _test package # Not needed - Makes it harder to test unexported package functions.
     - tparallel # detects inappropriate usage of t.Parallel() method in your Go test codes
     - unconvert # removes unnecessary type conversions
     - unparam # reports unused function parameters
     - usestdlibvars # detects the possibility to use variables/constants from the Go standard library
     - usetesting # reports uses of functions with replacement inside the testing package
-    # Todo enable - many required fixes
-    # - wastedassign # finds wasted assignment statements
-    # Todo enable - many fixes
-    # - whitespace # detects leading and trailing whitespace
+    - wastedassign # finds wasted assignment statements
+    - whitespace # detects leading and trailing whitespace
 
     ## Todo : Enable some of them
     ## you may want to enable
@@ -390,13 +378,12 @@ linters:
     # - dogsled # checks assignments with too many blank identifiers (e.g. x, _, _, _, := f())
     # False positives
     # - dupword # [useless without config] checks for duplicate words in the source code
-    # Todo : It gave some useful errors. Should fix
-    # - err113 # [too strict] checks the errors handling expressions
+
+    # It gave some useful errors optimization. Should fix eventually. But this is low priority
+    # - err113 # [too strict] checks the errors handling expressions #
     # - errchkjson # [don't see profit + I'm against of omitting errors like in the first example https://github.com/breml/errchkjson] checks types passed to the json encoding functions. Reports unsupported types and optionally reports occasions, where the check for the returned error can be omitted
     # - forcetypeassert # [replaced by errcheck] finds forced type assertions
-    # Todo : rely on this, and skip separate go fmt check in cicd
     # - gofmt # [replaced by goimports] checks whether code was gofmt-ed
-    # Todo : Check this
     #- gofumpt # [replaced by goimports, gofumports is not available yet] checks whether code was gofumpt-ed
     #- gomodguard # [use more powerful depguard] allow and block lists linter for direct Go module dependencies
     - gosmopolitan # reports certain i18n/l10n anti-patterns in your Go codebase
@@ -405,14 +392,34 @@ linters:
     - maintidx # measures the maintainability index of each function
     - misspell # [useless] finds commonly misspelled English words in comments
     # - nlreturn # [too strict and mostly code is not more readable] checks for a new line before return and branch statements to increase code clarity
-    # Todo : might make tests parallel
     #- paralleltest # [too many false positives] detects missing usage of t.Parallel() method in your Go test
-    # Todo : Check this. There are some issues to be fixed
     # - tagliatelle # checks the struct tags
     # - tenv # [deprecated, replaced by usetesting] detects using os.Setenv instead of t.Setenv since Go1.17
     #- thelper # detects golang test helpers without t.Helper() call and checks the consistency of test helpers
     # - wsl # [too strict and mostly code is not more readable] whitespace linter forces you to use empty lines
-
+  exclusions:
+    rules:
+      # Stores globally accessible icon strings
+      - path: 'src/config/icon/icon.go'
+        linters:
+          - gochecknoglobals
+      # Stores prerendered styles
+      - path: 'src/internal/common/style.go'
+        linters:
+          - gochecknoglobals
+      # Some fixed variables like default config paths, version, etc.
+      - path: 'src/config/fixed_variable.go'
+        linters:
+          - gochecknoglobals
+      # Stores predefined variables, like re-used non-const strings
+      - path: 'src/internal/common/predefined_variable.go'
+        linters:
+          - gochecknoglobals
+      # Global variables storing config
+      - path: 'src/internal/common/default_config.go'
+        linters:
+          - gochecknoglobals    
+
 
 issues:
   # Maximum count of issues with the same text.

src/cmd/main.go

@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"log"
 	"log/slog"
 	"net/http"
 	"os"
@@ -26,11 +25,10 @@ import (
 
 // Run superfile app
 func Run(content embed.FS) {
-
 	// Before we open log file, set all "non debug" logs to stdout
 	utils.SetRootLoggerToStdout(false)
 
-	common.LoadInitial_PrerenderedVariables()
+	common.LoadInitialPrerenderedVariables()
 	common.LoadAllDefaultConfig(content)
 
 	app := &cli.App{
@@ -43,7 +41,7 @@ func Run(content embed.FS) {
 				Name:    "path-list",
 				Aliases: []string{"pl"},
 				Usage:   "Print the path to the configuration and directory",
-				Action: func(c *cli.Context) error {
+				Action: func(_ *cli.Context) error {
 					fmt.Printf("%-*s %s\n", 55, lipgloss.NewStyle().Foreground(lipgloss.Color("#66b2ff")).Render("[Configuration file path]"), variable.ConfigFile)
 					fmt.Printf("%-*s %s\n", 55, lipgloss.NewStyle().Foreground(lipgloss.Color("#ffcc66")).Render("[Hotkeys file path]"), variable.HotkeysFile)
 					fmt.Printf("%-*s %s\n", 55, lipgloss.NewStyle().Foreground(lipgloss.Color("#66ff66")).Render("[Log file path]"), variable.LogFile)
@@ -86,32 +84,12 @@ func Run(content embed.FS) {
 		},
 		Action: func(c *cli.Context) error {
 			// If no args are called along with "spf" use current dir
-			path := ""
+			firstFilePanelDirs := []string{""}
 			if c.Args().Present() {
-				path = c.Args().First()
-			}
-
-			// Setting the config file path
-			configFileArg := c.String("config-file")
-
-			// Validate the config file exists
-			if configFileArg != "" {
-				if _, err := os.Stat(configFileArg); err != nil {
-					log.Fatalf("Error: While reading config file '%s' from argument : %v", configFileArg, err)
-				} else {
-					variable.ConfigFile = configFileArg
-				}
+				firstFilePanelDirs = c.Args().Slice()
 			}
 
-			hotkeyFileArg := c.String("hotkey-file")
-
-			if hotkeyFileArg != "" {
-				if _, err := os.Stat(hotkeyFileArg); err != nil {
-					log.Fatalf("Error: While reading hotkey file '%s' from argument : %v", hotkeyFileArg, err)
-				} else {
-					variable.HotkeysFile = hotkeyFileArg
-				}
-			}
+			variable.UpdateVarFromCliArgs(c)
 
 			InitConfigFile()
 
@@ -120,15 +98,11 @@ func Run(content embed.FS) {
 				hasTrash = false
 			}
 
-			variable.FixHotkeys = c.Bool("fix-hotkeys")
-			variable.FixConfigFile = c.Bool("fix-config-file")
-			variable.PrintLastDir = c.Bool("print-last-dir")
-
 			firstUse := checkFirstUse()
 
-			p := tea.NewProgram(internal.InitialModel(path, firstUse, hasTrash), tea.WithAltScreen(), tea.WithMouseCellMotion())
+			p := tea.NewProgram(internal.InitialModel(firstFilePanelDirs, firstUse, hasTrash), tea.WithAltScreen(), tea.WithMouseCellMotion())
 			if _, err := p.Run(); err != nil {
-				log.Fatalf("Alas, there's been an error: %v", err)
+				utils.PrintfAndExit("Alas, there's been an error: %v", err)
 			}
 
 			// This must be after calling internal.InitialModel()
@@ -147,7 +121,7 @@ func Run(content embed.FS) {
 
 	err := app.Run(os.Args)
 	if err != nil {
-		log.Fatalln(err)
+		utils.PrintlnAndExit(err)
 	}
 }
 
@@ -161,7 +135,7 @@ func InitConfigFile() {
 		variable.SuperFileStateDir,
 		variable.ThemeFolder,
 	); err != nil {
-		log.Fatalln("Error creating directories:", err)
+		utils.PrintlnAndExit("Error creating directories:", err)
 	}
 
 	// Create files
@@ -171,27 +145,27 @@ func InitConfigFile() {
 		variable.ThemeFileVersion,
 		variable.ToggleFooter,
 	); err != nil {
-		log.Fatalln("Error creating files:", err)
+		utils.PrintlnAndExit("Error creating files:", err)
 	}
 
 	// Write config file
 	if err := writeConfigFile(variable.ConfigFile, common.ConfigTomlString); err != nil {
-		log.Fatalln("Error writing config file:", err)
+		utils.PrintlnAndExit("Error writing config file:", err)
 	}
 
 	if err := writeConfigFile(variable.HotkeysFile, common.HotkeysTomlString); err != nil {
-		log.Fatalln("Error writing config file:", err)
+		utils.PrintlnAndExit("Error writing config file:", err)
 	}
 
-	if err := initJsonFile(variable.PinnedFile); err != nil {
-		log.Fatalln("Error initializing json file:", err)
+	if err := initJSONFile(variable.PinnedFile); err != nil {
+		utils.PrintlnAndExit("Error initializing json file:", err)
 	}
 }
 
 // We are initializing these, but not sure if we are ever using them
 func InitTrash() error {
 	// Create trash directories
-	if runtime.GOOS != variable.OS_DARWIN {
+	if runtime.GOOS != utils.OsDarwin {
 		err := createDirectories(
 			variable.CustomTrashDirectory,
 			variable.CustomTrashDirectoryFiles,
@@ -240,7 +214,7 @@ func checkFirstUse() bool {
 	if _, err := os.Stat(file); os.IsNotExist(err) {
 		firstUse = true
 		if err = os.WriteFile(file, nil, 0644); err != nil {
-			log.Fatalf("Failed to create file: %v", err)
+			utils.PrintfAndExit("Failed to create file: %v", err)
 		}
 	}
 	return firstUse
@@ -256,7 +230,7 @@ func writeConfigFile(path, data string) error {
 	return nil
 }
 
-func initJsonFile(path string) error {
+func initJSONFile(path string) error {
 	if _, err := os.Stat(path); os.IsNotExist(err) {
 		if err = os.WriteFile(path, []byte("null"), 0644); err != nil {
 			return fmt.Errorf("failed to initialize json file %s: %w", path, err)