Merge pull request #7275 from MikeMcQuaid/github_token

Set HOMEBREW_GITHUB_API_TOKEN from GITHUB_TOKEN.

Library/Homebrew/env_config.rb

@@ -131,6 +131,7 @@ module Homebrew
                      "GitHub will allow you a greater number of API requests. For more information, see: " \
                      "<https://developer.github.com/v3/#rate-limiting>\n\n    *Note:* Homebrew doesn't " \
                      "require permissions for any of the scopes.",
+        default_text: "`$GITHUB_TOKEN`.",
       },
       HOMEBREW_GITHUB_API_USERNAME:       {
         description: "GitHub username for authentication with the GitHub API, used by Homebrew for features " \

bin/brew

@@ -79,6 +79,12 @@ then
   export HOMEBREW_EDITOR="$VISUAL"
 fi
 
+# Use GITHUB_TOKEN if HOMEBREW_GITHUB_API_TOKEN is unset.
+if [[ -z "$HOMEBREW_GITHUB_API_TOKEN" && -n "$GITHUB_TOKEN" ]]
+then
+  export HOMEBREW_GITHUB_API_TOKEN="$GITHUB_TOKEN"
+fi
+
 # Set CI variable for GitHub Actions, Azure Pipelines, Jenkins
 # (Set by default on Circle and Travis CI)
 if [[ -n "$GITHUB_ACTIONS" || -n "$TF_BUILD" || -n "$JENKINS_HOME" ]]

docs/Manpage.md

@@ -1282,6 +1282,8 @@ Note that environment variables must have a value set to be detected. For exampl
 
     *Note:* Homebrew doesn't require permissions for any of the scopes.
 
+    *Default:* `$GITHUB_TOKEN`.
+
   * `HOMEBREW_GITHUB_API_USERNAME`:
     GitHub username for authentication with the GitHub API, used by Homebrew for features such as `brew search`. We strongly recommend using `HOMEBREW_GITHUB_API_TOKEN` instead.
 

manpages/brew.1

@@ -1637,6 +1637,9 @@ A personal access token for the GitHub API, used by Homebrew for features such a
 .IP
 \fINote:\fR Homebrew doesn\'t require permissions for any of the scopes\.
 .
+.IP
+\fIDefault:\fR \fB$GITHUB_TOKEN\fR\.
+.
 .TP
 \fBHOMEBREW_GITHUB_API_USERNAME\fR
 GitHub username for authentication with the GitHub API, used by Homebrew for features such as \fBbrew search\fR\. We strongly recommend using \fBHOMEBREW_GITHUB_API_TOKEN\fR instead\.