Description

Fixed an issue where relative paths in project configurations were not being handled correctly and build directories were not being created automatically. The extension now properly resolves relative paths to absolute using the workspace folder as the base and ensures build directories exist before build commands are executed.

Fixes #1408

Type of change

• Bug fix (non-breaking change which fixes an issue)

Steps to test this pull request

1. Create a project using example project "multi_config" in esp_idf_project_configuration.json use relative paths for "buildDirectoryPath" property

{
  "prod1": {
    "build": {
      "compileArgs": [],
      "ninjaArgs": [],
      "buildDirectoryPath": "build.prod1",
      "sdkconfigDefaults": [
        "sdkconfig.prod_common",
        "sdkconfig.prod1"
      ],
      "sdkconfigFilePath": ""
    },
    "env": {},
    "flashBaudRate": "",
    "monitorBaudRate": "",
    "openOCD": {
      "debugLevel": 0,
      "configs": [],
      "args": []
    },
    "tasks": {
      "preBuild": "",
      "preFlash": "",
      "postBuild": "",
      "postFlash": ""
    }
  },
  "prod2": {
    "build": {
      "compileArgs": [],
      "ninjaArgs": [],
      "buildDirectoryPath": "build.prod2",
      "sdkconfigDefaults": [
        "sdkconfig.prod_common",
        "sdkconfig.prod2"
      ],
      "sdkconfigFilePath": ""
    },
    "env": {},
    "flashBaudRate": "",
    "monitorBaudRate": "",
    "openOCD": {
      "debugLevel": 0,
      "configs": [],
      "args": []
    },
    "tasks": {
      "preBuild": "",
      "preFlash": "",
      "postBuild": "",
      "postFlash": ""
    }
  }
}

2. Select either configuration from the ESP-IDF Project Configuration panel
3. Try to build the project

Expected behaviour:

• Build directories should be created automatically if they don't exist
• Build should succeed using the correct paths
• No errors about missing directories or invalid paths should occur

How has this been tested?

As described above

Test Configuration:

• ESP-IDF Version: 5.4
• OS (Windows,Linux and macOS): Windows 11

Checklist

• PR Self Reviewed
• Applied Code formatting
• Added Documentation
• Added Unit Test
• Verified on all platforms - Windows,Linux and macOS