自定义oh-my-posh主题Git模块出现问号问题求助

我是Oh My Posh新手，正在通过参考、复制其他主题片段拼接自定义主题，当前使用PowerShell和JetBrainsMono Nerd Font。主题整体运行正常，但存在未暂存文件时，Git模块会显示问号。我尝试替换所有Unicode符号但无效，附上相关代码和复现步骤，请求排查原因。

Git段代码 #

{
  "background": "#00C853",
  "background_templates": [
      "{{ if or (.Working.Changed) (.Staging.Changed) }}#FFEB3B{{ end }}",
      "{{ if and (gt .Ahead 0) (gt .Behind 0) }}#FFCC80{{ end }}",
      "{{ if gt .Ahead 0 }}#B388FF{{ end }}",
      "{{ if gt .Behind 0 }}#B388FF{{ end }}"
  ],
  "foreground": "#000000",
  "powerline_symbol": "\ue0b0",
  "properties": {
      "fetch_stash_count": true,
      "fetch_status": true
  },
  "style": "powerline",
  "template": " {{ .HEAD }}{{ if .Staging.Changed }}<#FF6F00> \uf046 {{ .Staging.String }}</>{{ end }}{{ if and (.Working.Changed) (.Staging.Changed) }} |{{ end }}{{ if .Working.Changed }} \uf044 {{ .Working.String }}{{ end }}{{ if gt .StashCount 0 }} \ueb4b {{ .StashCount }}{{ end }} ",
  "type": "git"
}

完整主题JSON #

{
  "$schema": "https://raw.githubusercontent.com/JanDeDobbeleer/oh-my-posh/main/themes/schema.json",
  "blocks": [
    {
      "alignment": "left",
      "segments": [
        {
          "background": "#07585c",
          "foreground": "#ffffff",
          "leading_diamond": "\ue0b6",
          "style": "diamond",
          "template": " {{ .UserName }}@{{ .HostName }} ",
          "trailing_diamond": "\ue0b0",
          "type": "session"
        },
        {
          "background": "#444444",
          "foreground": "#E4E4E4",
          "properties": {
            "style": "full"
          },
          "style": "diamond",
          "template": " {{ .Path }} ",
          "type": "path"
        },
        {
          "background": "#00C853",
          "background_templates": [
              "{{ if or (.Working.Changed) (.Staging.Changed) }}#FFEB3B{{ end }}",
              "{{ if and (gt .Ahead 0) (gt .Behind 0) }}#FFCC80{{ end }}",
              "{{ if gt .Ahead 0 }}#B388FF{{ end }}",
              "{{ if gt .Behind 0 }}#B388FF{{ end }}"
          ],
          "foreground": "#000000",
          "powerline_symbol": "\ue0b0",
          "properties": {
              "fetch_stash_count": true,
              "fetch_status": true
          },
          "style": "powerline",
          "template": " {{ .HEAD }}{{ if .Staging.Changed }}<#FF6F00> \uf046 {{ .Staging.String }}</>{{ end }}{{ if and (.Working.Changed) (.Staging.Changed) }} |{{ end }}{{ if .Working.Changed }} \uf044 {{ .Working.String }}{{ end }}{{ if gt .StashCount 0 }} \ueb4b {{ .StashCount }}{{ end }} ",
          "type": "git"
        },
        {
          "background": "#575656",
          "foreground": "#d6deeb",
          "properties": {
            "style": "roundrock",
            "threshold": 0
          },
          "style": "diamond",
          "template": " {{ .FormattedMs }}",
          "trailing_diamond": "\ue0b4",
          "type": "executiontime"
        }
      ],
      "type": "prompt"
    },
    {
      "alignment": "right",
      "overflow": "break",
      "segments": [
        {
          "background": "#d6deeb",
          "foreground": "#011627",
          "leading_diamond": "\ue0b6",
          "style": "diamond",
          "template": "\uf489  {{ .Name }} ",
          "type": "shell"
        },
        {
          "background": "#234d70",
          "foreground": "#d6deeb",
          "properties": {
            "time_format": "15:04:05"
          },
          "style": "diamond",
          "template": " \ue641 {{ .CurrentDate | date .Format }}",
          "trailing_diamond": "\ue0b4",
          "type": "time"
        },
        {
          "background": "#306998",
          "foreground": "#FFE873",
          "leading_diamond": "\ue0b2",
          "style": "diamond",
          "template": "\ue235  {{ if .Error }}{{ .Error }}{{ else }}{{ if .Venv }}{{ .Venv }} {{ end }}{{ .Full }}{{ end }}",
          "trailing_diamond": "<transparent,#306998>\ue0b2</>",
          "type": "python"
        }
      ],
      "type": "prompt"
    },
    {
      "alignment": "left",
      "newline": true,
      "segments": [
        {
          "foreground": "#22da6e",
          "foreground_templates": ["{{ if gt .Code 0 }}#ef5350{{ end }}"],
          "properties": {
            "always_enabled": true
          },
          "style": "plain",
          "template": "\ue285\ue285",
          "type": "status"
        }
      ],
      "type": "prompt"
    }    
  ],
  "final_space": true,
  "version": 2
}

复现步骤 #

• 打开PowerShell，创建文件夹并执行 git init
• 创建文件（如 New-Item bar.txt），可观察Git Powerline块从绿色变为黄色并出现问号
• 需安装JetBrainsMono Nerd Font或CascaydiaCove Nerd Font
• 确保Microsoft.PowerShell_profile.ps1中包含以下内容：

Import-Module posh-git
oh-my-posh init pwsh --config "$env:POSH_THEMES_PATH/theme-name.omp.json" | Invoke-Expression

问题根源 #

问号是因为Git段模板中使用的{{ .Working.String }}会输出Git原生的状态符号（比如??代表未追踪文件），这些符号没有被替换为Nerd Font可渲染的图标，导致终端显示问号。

修复步骤 #

修改Git段的template字段，替换原生符号为图标化展示，推荐两种方式：

方式1：手动替换原生符号

将Git段的template改为：

"template": " {{ .HEAD }}{{ if .Staging.Changed }}<#FF6F00> \uf046 {{ .Staging.String }}</>{{ end }}{{ if and (.Working.Changed) (.Staging.Changed) }} |{{ end }}{{ if .Working.Changed }} \uf044 {{ replace .Working.String '??' '\uf059' }}{{ end }}{{ if gt .StashCount 0 }} \ueb4b {{ .StashCount }}{{ end }} ",

用replace函数把Git原生的??符号替换为Nerd Font的问号图标\uf059，确保字体能正确渲染。

方式2：使用内置状态图标（推荐）

直接使用Oh My Posh内置的{{ .Working.Icon }}和{{ .Working.Count }}变量，自动适配图标：

"template": " {{ .HEAD }}{{ if .Staging.Changed }}<#FF6F00> \uf046 {{ .Staging.Count }}</>{{ end }}{{ if and (.Working.Changed) (.Staging.Changed) }} |{{ end }}{{ if .Working.Changed }} \uf044 {{ .Working.Icon }} {{ .Working.Count }}{{ end }}{{ if gt .StashCount 0 }} \ueb4b {{ .StashCount }}{{ end }} ",

这种方式会根据文件状态（新增、修改、删除）自动显示对应图标，无需手动替换符号。

额外检查 #

1. 确认终端已设置JetBrainsMono Nerd Font为默认字体，重启终端生效
2. 执行 oh-my-posh upgrade 更新到最新版本，确保功能兼容
3. 删除Microsoft.PowerShell_profile.ps1中的Import-Module posh-git行，Oh My Posh已内置Git状态获取功能，两者可能冲突

内容的提问来源于stack exchange，提问作者Felix