A configuration directory path is built into the Racket executable as selected at install time, and its location can be changed via the PLTCONFIGDIR directory or --config/-G command-line flag. Use find-config-dir to locate the configuration directory.
Modify the "config.rktd" file in the configuration directory to configure other directories as described below. Use the setup/dirs library (which combines information from the configuration files and other sources) to locate configured directories, instead of reading "config.rktd" directly. A "config.rktd" file can also appear in the directory (build-path (find-system-path 'addon-dir) "etc"), but it controls only the results of find-addon-tethered-console-bin-dir and find-addon-tethered-gui-bin-dir.
The path of the main collection directory is built into the Racket executable, and it can be changed via the --collects/-X flag, so it has no entry in "config.rktd". Most paths that are specified in "config.rktd" have default values that are relative to the main collection directory. The paths of the configuration directory and main collection directory thus work together to determine a Racket configuration.
a string for the installation name, which is used to determine user- and version-specific paths, such as the initial path produced by find-library-collection-paths and the location of packages that are installed in user package scope. The default is (version).
a path, string, or byte string for the main library directory. It defaults to a "lib" sibling directory of the main collection directory.
a list of paths, strings, byte strings, or #f representing the search path for directories containing foreign libraries. Each #f in the list, if any, is replaced with the default search path, which is the user- and version-specific "lib" directory followed by the main library directory.
a path, string, or byte string for a directory containing shared libraries for the main executable. It defaults to the main library directory.
a path, string, or byte string for the main shared-file directory, which normally includes installed packages. It defaults to a "share" sibling directory of the main collection directory.
like 'lib-search-dirs, but for collection links file.
a path, string, or byte string for packages that have installation package scope. It defaults to "pkgs" in the main shared-file directory.
similar to 'lib-search-dirs, but for packages in roughly installation package scope. More precisely, a #f value in the list is replaced with the directory specified by 'pkgs-dir, and that point in the search list corresponds to installation scope. Paths before or after a #f value in the list can be selected as a scopes to start searches at that path’s point in the list. Directories listed in 'pkgs-search-dirs typically oblige a corresponding entry in 'links-search-files, where the corresponding entry is "links.rktd" within the directory.
Changed in version 18.104.22.168: Adapt the package-search path in a general way for a directory scope.
a path, string, or byte string for the installation’s directory containing executables. It defaults to a "bin" sibling directory of the main collection directory.
a path, string, or byte string for the installation’s directory containing GUI executables. It defaults to a the 'bin-dir value, if configured, or otherwise defaults in a platform-specific way: to the "bin" sibling directory of the main collection directory on Unix, and to the parent of the main collection directory on Windows and Mac OS.
Added in version 22.214.171.124.
a path, string, or byte string for the installation’s directory for ".desktop" files. It defaults to a "applications" subdirectory of the main shared-file directory.
a path, string, or byte string for the installation’s man-page directory. It defaults to a "man" sibling directory of the main collection directory.
a path, string, or byte string for the main documentation directory. The value defaults to a "doc" sibling directory of the main collection directory.
a URL string or #f; a string supplies a URL that is used instead of a local path to search and maybe open documentation pages (which normally makes sense only in an environment where opening a local HTML file does not work).
a path, string, or byte string for the main directory containing C header files. It defaults to an "include" sibling directory of the main collection directory.
a list of URL strings used as the search path for resolving package names. An #f in the list is replaced with the default search path. A string that does not start with alphabetic characters followed by :// is treated as a path, where a relative path is relative to the configuration directory.
either "user" or "installation", determining the default package scope for package-management operations.
a path string used as the location for storing downloaded package archives. When not specified, packages are cached in a "download-cache" directory in the user’s add-on directory as reported by (find-system-path 'addon-dir).
'download-cache-max-files and 'download-cache-max-bytes —
real numbers that determine limits on the download cache. When not specified, the cache is allowed to hold up to 1024 files that total up to 64 MB.
a string that identifies a build, which can be used to augment the Racket version number to more specifically identify the build. An empty string is normally appropriate for a release build.
a string used as the suffix (before the actual suffix, such as ".exe") for a "CGC" executable. Use Windows-style casing, and the string will be downcased as appropriate (e.g., for a Unix binary name). A #f value means that if the racket binary identifies itself as CGC, then the suffix is "", otherwise it is "CGC".
'config-tethered-console-bin-dir and 'config-tethered-gui-bin-dir —
a path for a directory to hold extra copies of executables that are tied to the configuration directory (as reported by find-config-dir) that is active at the time the executables are created. See also find-config-tethered-console-bin-dir and find-config-tethered-gui-bin-dir.
'interactive-file and 'gui-interactive-file —
a module path to the interactive module that runs when the REPL runs on startup, unless the -q/--no-init-file is provided. Defaults to 'racket/interactive and 'racket/gui/interactive.