util

func GetTokenFromEnv ¶

func GetTokenFromEnv(tokenValue string) string

GetTokenFromEnv returns a GitHub token based on the following precedence order:

1. If tokenValue is non-empty, it is returned.
2. Otherwise, if the GITHUB_TOKEN environment variable is set, its value is returned.
3. Otherwise, if the GH_TOKEN environment variable is set, its value is returned.
4. If none of the above are set, an empty string is returned.

Example:

os.Setenv("GITHUB_TOKEN", "abc")
os.Setenv("GH_TOKEN", "def")
GetTokenFromEnv("xyz") // returns "xyz"
GetTokenFromEnv("")    // returns "abc"
os.Unsetenv("GITHUB_TOKEN")
GetTokenFromEnv("")    // returns "def"
os.Unsetenv("GH_TOKEN")
GetTokenFromEnv("")    // returns ""