fix the `exec.LookPath` issue

[AnnatarHe]

in file https://github.com/shelltime/cli/blob/main/model/ccusage_service.go#L213 and https://github.com/shelltime/cli/blob/main/model/ccusage_service.go#L214, we call exec.LookPath to get the executable bunx or npx. But it could not find the daemon service. maybe because the PATH is not inherited from the env.

pls create a custom LookPath function try to find the properly executable binary.

@claude

[claude]

Claude finished @AnnatarHe's task —— View job • claude/issue-112-20251002-0939 • Create PR ➔

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Fixed the exec.LookPath issue ✓

Analysis

Found the issue at model/ccusage_service.go:213-214. The code uses exec.LookPath to find bunx and npx executables, but when running as a daemon service, the PATH environment variable may not include user-specific Node.js installation paths.

Solution

Created a custom lookPath function that:

• First tries the standard exec.LookPath (checks system PATH)
• Falls back to checking common installation locations for Node.js package managers
• Supports multiple platforms (Windows, macOS, Linux)
• Handles various package managers (npm, pnpm, bun, nvm)
• Checks for executable permissions on Unix-like systems

The function searches these locations:

• User-specific paths: ~/.npm-global/bin, ~/.npm/bin, ~/.local/share/pnpm, ~/.bun/bin, ~/.nvm/current/bin
• Homebrew paths (macOS): /usr/local/bin, /opt/homebrew/bin
• System paths: /usr/bin, /bin
• Windows paths: AppData npm/bun installations, Program Files nodejs
• NVM paths: Uses NVM_DIR environment variable when available

Changes

• Added lookPath() function in model/ccusage_service.go:212-296
• Replaced exec.LookPath calls with lookPath at lines 301-302
• Added imports for filepath and runtime packages

Tasks

• Read and understand the current implementation in model/ccusage_service.go
• Design a custom LookPath function for finding node package managers
• Implement the custom lookup function
• Replace existing exec.LookPath calls with the new function
• Commit and push changes
• Provide PR link

Next Steps

--- | Branch: claude/issue-112-20251002-0939