mirror of
https://github.com/NixOS/nixpkgs.git
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200 lines
8.1 KiB
Common Lisp
200 lines
8.1 KiB
Common Lisp
(defpackage org.lispbuilds.nix/repository/quicklisp
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(:use :cl)
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(:import-from :dex)
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(:import-from :alexandria :read-file-into-string :ensure-list)
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(:import-from :arrow-macros :->>)
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(:import-from :str)
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(:import-from
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:org.lispbuilds.nix/database/sqlite
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:sqlite-database
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:init-db
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:database-url
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:init-file)
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(:import-from
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:org.lispbuilds.nix/api
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:import-lisp-packages)
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(:import-from
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:org.lispbuilds.nix/util
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:replace-regexes)
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(:export :quicklisp-repository)
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(:local-nicknames
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(:json :com.inuoe.jzon)))
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(in-package org.lispbuilds.nix/repository/quicklisp)
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(defclass quicklisp-repository ()
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((dist-url :initarg :dist-url
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:reader dist-url
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:initform (error "dist url required"))))
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(defun clear-line ()
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(write-char #\Return *error-output*)
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(write-char #\Escape *error-output*)
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(write-char #\[ *error-output*)
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(write-char #\K *error-output*))
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(defun status (&rest format-args)
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(clear-line)
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(apply #'format (list* *error-output* format-args))
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(force-output *error-output*))
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;; TODO: This should not know about the imported.nix file.
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(defun init-tarball-hashes (database)
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(status "no packages.sqlite - will pre-fill tarball hashes from ~A to save time~%"
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(truename "imported.nix"))
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(let* ((lines (uiop:read-file-lines "imported.nix"))
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(lines (remove-if-not
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(lambda (line)
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(let ((trimmed (str:trim-left line)))
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(or (str:starts-with-p "url = " trimmed)
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(str:starts-with-p "sha256 = " trimmed))))
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lines))
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(lines (mapcar
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(lambda (line)
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(multiple-value-bind (whole groups)
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(ppcre:scan-to-strings "\"\(.*\)\"" line)
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(declare (ignore whole))
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(svref groups 0)))
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lines)))
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(sqlite:with-open-database (db (database-url database))
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(init-db db (init-file database))
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(sqlite:with-transaction db
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(loop while lines do
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(sqlite:execute-non-query db
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"insert or ignore into sha256(url,hash) values (?,?)"
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(prog1 (first lines) (setf lines (rest lines)))
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(prog1 (first lines) (setf lines (rest lines))))))
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(status "OK, imported ~A hashes into DB.~%"
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(sqlite:execute-single db
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"select count(*) from sha256")))))
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(defmethod import-lisp-packages ((repository quicklisp-repository)
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(database sqlite-database))
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;; If packages.sqlite is missing, we should populate the sha256
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;; table to speed things up.
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(unless (probe-file (database-url database))
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(init-tarball-hashes database))
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(let* ((db (sqlite:connect (database-url database)))
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(systems-url (str:concat (dist-url repository) "systems.txt"))
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(releases-url (str:concat (dist-url repository) "releases.txt"))
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(systems-lines (rest (butlast (str:split #\Newline (dex:get systems-url)))))
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(releases-lines (rest (butlast (str:split #\Newline (dex:get releases-url))))))
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(flet ((sql-query (sql &rest params)
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(apply #'sqlite:execute-to-list (list* db sql params))))
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;; Ensure database schema
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(init-db db (init-file database))
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;; Prepare temporary tables for efficient access
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(sql-query "create temp table if not exists quicklisp_system
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(project, asd, name unique, deps)")
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(sql-query "create temp table if not exists quicklisp_release
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(project unique, url, size, md5, sha1, prefix not null, asds)")
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(sqlite:with-transaction db
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(dolist (line systems-lines)
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(destructuring-bind (project asd name &rest deps)
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(str:words line)
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(sql-query
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"insert or ignore into quicklisp_system values(?,?,?,?)"
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project asd name (json:stringify (coerce deps 'vector))))))
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(sqlite:with-transaction db
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(dolist (line releases-lines)
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(destructuring-bind (project url size md5 sha1 prefix &rest asds)
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(str:words line)
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(sql-query
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"insert or ignore into quicklisp_release values(?,?,?,?,?,?,?)"
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project url size md5 sha1 prefix (json:stringify (coerce
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asds
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'vector))))))
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(sqlite:with-transaction db
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;; Should these be temp tables, that then get queried by
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;; system name? This looks like it uses a lot of memory.
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(let ((systems
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(sql-query
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"with pkg as (
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select
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name, asd, url, deps,
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ltrim(replace(prefix, r.project, ''), '-_') as version
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from quicklisp_system s, quicklisp_release r
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where s.project = r.project
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)
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select
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name, version, asd, url,
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(select json_group_array(
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json_array(value, (select version from pkg where name=value))
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)
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from json_each(deps)) as deps
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from pkg"
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)))
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;; First pass: insert system and source tarball informaton.
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;; Can't insert dependency information, because this works
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;; on system ids in the database and they don't exist
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;; yet. Could it be better to just base dependencies on
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;; names? But then ACID is lost.
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(dolist (system systems)
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(destructuring-bind (name version asd url deps) system
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(declare (ignore deps))
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(status "importing system '~a-~a'" name version)
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(let ((hash (nix-prefetch-tarball url db)))
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(sql-query
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"insert or ignore into system(name,version,asd) values (?,?,?)"
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name version asd)
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(sql-query
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"insert or ignore into sha256(url,hash) values (?,?)"
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url hash)
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(sql-query
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"insert or ignore into src values
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((select id from sha256 where url=?),
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(select id from system where name=? and version=?))"
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url name version))))
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;; Second pass: connect the in-database systems with
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;; dependency information
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(dolist (system systems)
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(destructuring-bind (name version asd url deps) system
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(declare (ignore asd url))
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(dolist (dep (coerce (json:parse deps) 'list))
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(destructuring-bind (dep-name dep-version) (coerce dep 'list)
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(if (eql dep-version 'NULL)
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(warn "Bad data in Quicklisp: ~a has no version" dep-name)
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(sql-query
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"insert or ignore into dep values
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((select id from system where name=? and version=?),
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(select id from system where name=? and version=?))"
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name version
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dep-name dep-version))))))))))
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(write-char #\Newline *error-output*))
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(defun shell-command-to-string (cmd)
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;; Clearing the library path is needed to prevent a bug, where the
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;; called subprocess uses a different glibc than the SBCL process
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;; is. In that case, the call to execve attempts to load the
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;; libraries used by SBCL from LD_LIBRARY_PATH using a different
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;; glibc than they expect, which errors out.
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(let ((ld-library-path (uiop:getenv "LD_LIBRARY_PATH")))
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(setf (uiop:getenv "LD_LIBRARY_PATH") "")
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(unwind-protect
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(uiop:run-program cmd :output '(:string :stripped t))
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(setf (uiop:getenv "LD_LIBRARY_PATH") ld-library-path))))
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(defun nix-prefetch-tarball (url db)
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(restart-case
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(compute-sha256 url db)
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(try-again ()
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:report "Try downloading again"
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(nix-prefetch-tarball url db))))
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(defun compute-sha256 (url db)
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(or (sqlite:execute-single db "select hash from sha256 where url=?" url)
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(let ((sha256 (shell-command-to-string (str:concat "nix-prefetch-url --unpack " url))))
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sha256)))
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