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Document environment variables used for downloading

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Mislav Marohnić 2018-08-22 13:22:40 +02:00
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@ -69,6 +69,10 @@ The build process may be configured through the following environment variables:
| `TMPDIR` | Where temporary files are stored. |
| `RUBY_BUILD_BUILD_PATH` | Where sources are downloaded and built. (Default: a timestamped subdirectory of `TMPDIR`) |
| `RUBY_BUILD_CACHE_PATH` | Where to cache downloaded package files. (Default: `~/.rbenv/cache` if invoked as rbenv plugin) |
| `RUBY_BUILD_HTTP_CLIENT` | One of `aria2c`, `curl`, or `wget` to use for downloading. (Default: first one found in PATH) |
| `RUBY_BUILD_ARIA2_OPTS` | Additional options to pass to `aria2c` for downloading. |
| `RUBY_BUILD_CURL_OPTS` | Additional options to pass to `curl` for downloading. |
| `RUBY_BUILD_WGET_OPTS` | Additional options to pass to `wget` for downloading. |
| `RUBY_BUILD_MIRROR_URL` | Custom mirror URL root. |
| `RUBY_BUILD_SKIP_MIRROR` | Always download from official sources, not mirrors. (Default: unset) |
| `RUBY_BUILD_ROOT` | Custom build definition directory. (Default: `share/ruby-build`) |