feat: add analytics to CLI installer

[Pantani]

We have this installer to install the ignite binary thoughts curl (curl https://get.ignite.com/cli! | bash). We need to add analytics to it to track the number of downloads and which version.

[Pantani]

we should use the same proxy we are using to share the analytics from CLI, for we don't expose the token into the script. Because if we do curl https://get.ignite.com/cli\! without the bash this downloads all script content

[Pantani]

When the script is called, we should make an HTTP request to Google Analytics, passing the version of the Ignite into the request, like the CLI is doing:

cli/ignite/pkg/gacli/gacli.go

Lines 80 to 113 in 9a233e6

	// Send sends metric event to analytics.
	func (c Client) Send(body Body) error {
	// encode body
	encoded, err := json.Marshal(body)
	if err != nil {
	return err
	}
	requestURL, err := url.Parse(c.endpoint)
	if err != nil {
	return err
	}
	v := requestURL.Query()
	if c.measurementID != "" {
	v.Set("measurement_id", c.measurementID)
	}
	if c.apiSecret != "" {
	v.Set("api_secret", c.apiSecret)
	}
	requestURL.RawQuery = v.Encode()
	// Create an HTTP request with the payload
	resp, err := c.httpClient.Post(requestURL.String(), "application/json", bytes.NewBuffer(encoded))
	if err != nil {
	return errors.Wrapf(err, "error creating HTTP request: %s", requestURL.String())
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK &&
	resp.StatusCode != http.StatusNoContent {
	return errors.Errorf("error to add analytics metric. Status code: %d", resp.StatusCode)
	}
	return nil
	}

The analytics should be sent at the end of the script and not fail in case the request fails.

[julienrbrt]

Do note that installation on snap or homebrew won't be counted.
Those are public and can be found here:

• https://formulae.brew.sh/formula/ignite#default (end of page)
• monthly email from snapcraft

Should we really keep promoting the manual install when we have package managers?

[toschdev]

Can we track these installations @julienrbrt ?

[julienrbrt]

Can we track these installations @julienrbrt ?

Those are both tracked yes. I can add you to the monthly emails for snaps if you want.

[Pantani]

We can get the brew analytics from the API. Can we easily collect this data to add to the analytics?

https://formulae.brew.sh/api/formula/ignite.json

{
  "analytics": {
    "install": {
      "30d": {
        "ignite": 76
      },
      "90d": {
        "ignite": 275
      },
      "365d": {
        "ignite": 275
      }
    },
    "install_on_request": {
      "30d": {
        "ignite": 76
      },
      "90d": {
        "ignite": 275
      },
      "365d": {
        "ignite": 275
      }
    },
    "build_error": {
      "30d": {
        "ignite": 0
      }
    }
  }
}