feat(debug): remove the need to specify shell

.github/ISSUE_TEMPLATE/bug.yml

@@ -61,7 +61,7 @@ body:
     id: logs
     attributes:
       label: Log output
-      description: Please copy and paste the output generated by `oh-my-posh debug <shell> --plain`.
+      description: Please copy and paste the output generated by `oh-my-posh debug --plain`.
       render: Shell
     validations:
       required: true

src/cli/debug.go

@@ -2,6 +2,7 @@ package cli
 
 import (
 	"fmt"
+	"os"
 	"time"
 
 	"github.com/jandedobbeleer/oh-my-posh/src/build"
@@ -24,30 +25,25 @@ func init() {
 
 func createDebugCmd() *cobra.Command {
 	debugCmd := &cobra.Command{
-		Use:       "debug [bash|zsh|fish|powershell|pwsh|cmd|nu|tcsh|elvish|xonsh]",
+		Use:   "debug",
 		Short: "Print the prompt in debug mode",
 		Long:  "Print the prompt in debug mode.",
-		ValidArgs: supportedShells,
-		Args:      NoArgsOrOneValidArg,
-		Run: func(cmd *cobra.Command, args []string) {
+		Run: func(_ *cobra.Command, _ []string) {
 			startTime := time.Now()
 
-			if len(args) == 0 {
-				_ = cmd.Help()
-				return
-			}
-
 			log.Enable()
 			log.Debug("debug mode enabled")
 
+			shell := os.Getenv("POSH_SHELL")
+
 			configFile := config.Path(configFlag)
-			cfg := config.Load(configFile, args[0], false)
+			cfg := config.Load(configFile, shell, false)
 
 			flags := &runtime.Flags{
 				Config: configFile,
 				Debug:  true,
 				PWD:    pwd,
-				Shell:  args[0],
+				Shell:  shell,
 				Plain:  plain,
 			}
 
@@ -61,7 +57,7 @@ func createDebugCmd() *cobra.Command {
 				env.Close()
 			}()
 
-			terminal.Init(args[0])
+			terminal.Init(shell)
 			terminal.BackgroundColor = cfg.TerminalBackground.ResolveTemplate()
 			terminal.Colors = cfg.MakeColors(env)
 			terminal.Plain = plain

src/config/load.go

@@ -62,7 +62,7 @@ func Path(config string) string {
 	hasConfig := len(config) > 0
 
 	if poshTheme := os.Getenv("POSH_THEME"); len(poshTheme) > 0 && !hasConfig {
-		log.Debug("config set using POSH_THEME: %s", poshTheme)
+		log.Debug("config set using POSH_THEME:", poshTheme)
 		return poshTheme
 	}
 

src/shell/scripts/omp.bash

@@ -1,4 +1,5 @@
 export POSH_THEME=::CONFIG::
+export POSH_SHELL='bash'
 export POSH_SHELL_VERSION=$BASH_VERSION
 export POWERLINE_COMMAND='oh-my-posh'
 export POSH_SESSION_ID=::SESSION_ID::

src/shell/scripts/omp.elv

@@ -1,5 +1,6 @@
 set-env POSH_SESSION_ID ::SESSION_ID::
 set-env POSH_THEME ::CONFIG::
+set-env POSH_SHELL elvish
 set-env POSH_SHELL_VERSION $version
 set-env POWERLINE_COMMAND oh-my-posh
 

src/shell/scripts/omp.fish

@@ -1,4 +1,5 @@
 set --export POSH_THEME ::CONFIG::
+set --export POSH_SHELL fish
 set --export POSH_SHELL_VERSION $FISH_VERSION
 set --export POWERLINE_COMMAND oh-my-posh
 set --export POSH_SESSION_ID ::SESSION_ID::

src/shell/scripts/omp.lua

@@ -2,8 +2,9 @@
 ---@diagnostic disable: undefined-field
 ---@diagnostic disable: lowercase-global
 
--- Cache PID
+-- Environment variables
 os.setenv('POSH_SESSION_ID', '::SESSION_ID::')
+os.setenv('POSH_SHELL', 'cmd')
 
 -- Helper functions
 

src/shell/scripts/omp.nu

@@ -7,6 +7,7 @@ $env.POWERLINE_COMMAND = 'oh-my-posh'
 $env.POSH_THEME = (echo ::CONFIG::)
 $env.PROMPT_INDICATOR = ""
 $env.POSH_SESSION_ID = (echo ::SESSION_ID::)
+$env.POSH_SHELL = "nu"
 $env.POSH_SHELL_VERSION = (version | get version)
 
 let _omp_executable: string = (echo ::OMP::)

src/shell/scripts/omp.ps1

@@ -39,6 +39,7 @@ New-Module -Name "oh-my-posh-core" -ScriptBlock {
     $script:JobCount = 0
 
     $env:POWERLINE_COMMAND = "oh-my-posh"
+    $env:POSH_SHELL = "pwsh"
     $env:POSH_SHELL_VERSION = $script:PSVersion
     $env:POSH_SESSION_ID = ::SESSION_ID::
     $env:CONDA_PROMPT_MODIFIER = $false

src/shell/scripts/omp.tcsh

@@ -1,5 +1,6 @@
 setenv POWERLINE_COMMAND "oh-my-posh";
 setenv POSH_THEME ::CONFIG::;
+setenv POSH_SHELL "tcsh";
 setenv POSH_SHELL_VERSION "$tcsh";
 setenv POSH_SESSION_ID ::SESSION_ID::;
 setenv OSTYPE "$OSTYPE";

src/shell/scripts/omp.xsh

@@ -1,6 +1,7 @@
 $POWERLINE_COMMAND = "oh-my-posh"
 $POSH_THEME = ::CONFIG::
 $POSH_SESSION_ID = ::SESSION_ID::
+$POSH_SHELL = "xonsh"
 $POSH_SHELL_VERSION = $XONSH_VERSION
 
 _omp_executable = ::OMP::

src/shell/scripts/omp.zsh

@@ -1,4 +1,5 @@
 export POSH_THEME=::CONFIG::
+export POSH_SHELL='zsh'
 export POSH_SHELL_VERSION=$ZSH_VERSION
 export POSH_SESSION_ID=::SESSION_ID::
 export POWERLINE_COMMAND='oh-my-posh'