mirror of
https://github.com/NixOS/nixpkgs.git
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138 lines
4.2 KiB
Common Lisp
138 lines
4.2 KiB
Common Lisp
; QuickLisp-to-Nix export
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; Requires QuickLisp to be loaded
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; Installs the QuickLisp version of all the packages processed (in the
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; QuickLisp instance it uses)
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(ql:quickload :cl-emb)
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(ql:quickload :external-program)
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(ql:quickload :cl-ppcre)
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(ql:quickload :md5)
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(ql:quickload :alexandria)
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(defun nix-prefetch-url (url)
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(let*
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((stdout nil)
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(stderr nil))
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(setf
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stdout
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(with-output-to-string (so)
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(setf
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stderr
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(with-output-to-string (se)
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(external-program:run
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"nix-prefetch-url"
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(list url)
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:search t :output so :error se)))))
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(let*
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((path-line (first (last (cl-ppcre:split (format nil "~%") stderr))))
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(path (cl-ppcre:regex-replace-all "path is .(.*)." path-line "\\1")))
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(list
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:sha256 (first (cl-ppcre:split (format nil "~%") stdout))
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:path path
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:md5 (string-downcase
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(format nil "~{~16,2,'0r~}"
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(map 'list 'identity (md5:md5sum-file path))))))))
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(defun escape-filename (s)
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(format nil "~{~a~}"
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(loop
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for x in (map 'list 'identity s)
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collect
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(case x
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(#\/ "_slash_")
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(#\\ "_backslash_")
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(#\_ "__")
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(t x)))))
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(defun system-data (system)
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(ql:quickload system)
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(let*
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((asdf-system (asdf:find-system system))
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(ql-system (ql-dist:find-system system))
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(ql-release (ql-dist:release ql-system))
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(url (ql-dist:archive-url ql-release))
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(local-archive (ql-dist:local-archive-file ql-release))
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(local-url (format nil "file://~a" (pathname local-archive)))
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(archive-data
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(progn
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(ql-dist:ensure-local-archive-file ql-release)
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(nix-prefetch-url local-url)))
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(ideal-md5 (ql-dist:archive-md5 ql-release))
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(file-md5 (getf archive-data :md5))
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(raw-dependencies (asdf:system-depends-on asdf-system))
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(dependencies (remove-if-not 'ql-dist:find-system raw-dependencies))
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(deps (mapcar (lambda (x) (list :name x)) dependencies))
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(name (string-downcase (format nil "~a" system)))
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(description (asdf:system-description asdf-system))
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(release-name (ql-dist:short-description ql-release))
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(version (cl-ppcre:regex-replace-all
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(format nil "~a-" name) release-name "")))
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(assert (equal ideal-md5 file-md5))
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(list
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:system system
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:description description
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:sha256 (getf archive-data :sha256)
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:url url
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:md5 file-md5
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:name name
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:filename (escape-filename name)
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:deps deps
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:dependencies dependencies
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:version version)))
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(defmacro this-file ()
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(or *compile-file-truename*
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*load-truename*))
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(defun nix-expression (system)
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(cl-emb:execute-emb
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(merge-pathnames #p"nix-package.emb" (this-file))
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:env (system-data system)))
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(defun nix-invocation (system)
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(cl-emb:execute-emb
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(merge-pathnames #p"invocation.emb" (this-file))
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:env (system-data system)))
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(defun systems-closure (systems)
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(let*
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((seen (make-hash-table :test 'equal)))
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(loop
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with queue := systems
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with res := nil
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while queue
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for next := (pop queue)
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for deps := (getf (system-data next) :dependencies)
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unless (gethash next seen) do
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(progn
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(push next res)
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(setf queue (append queue deps)))
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do (setf (gethash next seen) t)
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finally (return res))))
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(defun ql-to-nix (target-directory)
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(let*
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((systems
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(cl-ppcre:split
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(format nil "~%")
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(alexandria:read-file-into-string
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(format nil "~a/quicklisp-to-nix-systems.txt" target-directory))))
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(closure (systems-closure systems))
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(invocations
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(loop for s in closure
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collect (list :code (nix-invocation s)))))
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(loop
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for s in closure
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do (alexandria:write-string-into-file
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(nix-expression s)
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(format nil "~a/quicklisp-to-nix-output/~a.nix"
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target-directory (escape-filename s))
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:if-exists :supersede))
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(alexandria:write-string-into-file
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(cl-emb:execute-emb
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(merge-pathnames
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#p"top-package.emb"
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(this-file))
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:env (list :invocations invocations))
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(format nil "~a/quicklisp-to-nix.nix" target-directory)
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:if-exists :supersede)))
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