/usr/share/racket/collects/pkg/db.rkt is in racket-common 6.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(require racket/contract/base
racket/format
racket/set
racket/path
racket/file
version/utils
setup/dirs
db/private/pre)
(provide
(struct-out pkg)
(contract-out
[current-pkg-catalog-file
(parameter/c path-string?)]
[call-with-pkgs-transaction ((-> any) . -> . any)]
[get-catalogs (-> (listof string?))]
[set-catalogs! ((listof string?) . -> . void?)]
[set-pkgs! ((string? (listof (or/c pkg? string?)))
(#:clear-other-checksums? boolean?)
. ->* .
void?)]
[get-pkgs (()
(#:name (or/c #f string?)
#:catalog (or/c #f string?))
. ->* .
(listof pkg?))]
[set-pkg! ((string? string? string? string? string? string?)
(#:clear-other-checksums? boolean?)
. ->* .
void?)]
[get-pkg-modules (string? string? string?
. -> . (listof module-path?))]
[set-pkg-modules! (string? string? string?
(listof module-path?)
. -> . void?)]
[get-pkg-dependencies (string? string? string?
. -> . (listof dep/c))]
[set-pkg-dependencies! (string? string? string?
(listof dep/c)
. -> . void?)]
[get-pkg-tags (string? string?
. -> . (listof string?))]
[set-pkg-tags! (string? string? (listof string?)
. -> . void?)]
[get-module-pkgs (module-path? . -> . (listof pkg?))]
[get-pkgs-without-modules (()
(#:catalog string?)
. ->* .
(listof pkg?))]))
(define platform/c (or/c string? symbol? regexp?))
(define dep/c (or/c string?
(list/c string?)
(list/c string? string?)
(list/c string? '#:version valid-version?)
(list/c string? '#:platform platform/c)
(list/c string? '#:version valid-version? '#:platform platform/c)
(list/c string? '#:platform platform/c '#:version valid-version?)))
(struct pkg (name catalog author source checksum desc)
#:transparent)
(define (prepare-catalog-table db)
(prepare-table db
"catalog"
(~a "(id SMALLINT,"
" url TEXT,"
" pos SMALLINT)")))
(define (prepare-pkg-table db)
(prepare-table db
"pkg"
(~a "(name TEXT,"
" catalog SMALLINT,"
" author TEXT,"
" source TEXT,"
" checksum TEXT,"
" desc TEXT)")
;; index:
"(name, catalog)"))
(define (prepare-tags-table db)
(prepare-table db
"tags"
(~a "(pkg TEXT,"
" catalog SMALLINT,"
" tag TEXT)")
;; index:
"(pkg, catalog)"))
(define (prepare-modules-table db)
(prepare-table db
"modules"
(~a "(name TEXT,"
" pkg TEXT,"
" catalog SMALLINT,"
" checksum TEXT)")
;; index:
"(pkg, catalog, checksum)"))
(define (prepare-dependencies-table db)
(prepare-table db
"dependencies"
(~a "(onpkg TEXT,"
" onversion TEXT,"
" onplatform TEXT,"
" pkg TEXT,"
" catalog SMALLINT,"
" checksum TEXT)")
;; index:
"(pkg, catalog, checksum)"))
(define current-pkg-catalog-file
(make-parameter (build-path
(find-system-path 'addon-dir)
(get-installation-name)
"pkgs"
"catalog.sqlite")))
(define-struct catalog-db (connection in-transaction? ready-tables))
(define current-catalog-db (make-parameter #f))
(define (call-with-pkgs-transaction proc)
(call-with-catalog-db
(lambda (db)
(call-with-transaction
(catalog-db-connection db)
(lambda ()
(parameterize ([current-catalog-db
(make-catalog-db (catalog-db-connection db)
#t
(make-hash))])
(proc)))))))
(define (call-with-catalog-db proc)
(define file (current-pkg-catalog-file))
(define dir (path-only file))
(when dir
(unless (directory-exists? dir)
(make-directory* dir)))
(define catalog-db (current-catalog-db))
(define db #f)
(dynamic-wind
(lambda ()
(set! db (if catalog-db
(catalog-db-connection catalog-db)
(sqlite3-connect #:database file
#:mode 'create
#:busy-retry-limit +inf.0))))
(lambda () (proc (or catalog-db
(make-catalog-db db #f (make-hash)))))
(lambda ()
(unless catalog-db
(disconnect db)))))
(define (call-with-catalog-transaction db proc)
(if (catalog-db-in-transaction? db)
;; In one big transaction:
(proc)
;; Not already in one big transaction:
(call-with-transaction
(catalog-db-connection db)
proc)))
(define (get-pkgs #:name [name #f]
#:catalog [catalog #f])
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(for/list ([row (in-list
(apply
query-rows
(catalog-db-connection db)
(~a "SELECT K.name, N.url, K.author, K.source, K.checksum, K.desc"
" FROM pkg K, catalog N"
" WHERE N.id = K.catalog"
(if catalog
" AND N.url = $1"
"")
(if name
(~a " AND K.name = "
(if catalog "$2" "$1"))
"")
" ORDER BY N.pos")
(append
(if catalog
(list catalog)
null)
(if name
(list name)
null))))])
(pkg (vector-ref row 0)
(vector-ref row 1)
(vector-ref row 2)
(vector-ref row 3)
(vector-ref row 4)
(vector-ref row 5))))))
(define (set-pkg! name catalog author source checksum desc
#:clear-other-checksums? [clear-other-checksums? (not (equal? checksum ""))])
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-modules-table db)
(prepare-dependencies-table db)
(call-with-catalog-transaction
db
(lambda ()
(define catalog-id (url->catalog db catalog))
(query (catalog-db-connection db)
(~a "UPDATE pkg"
" SET author=$1, source=$2, checksum=$3, desc=$4"
" WHERE name=$5"
" AND catalog=$6")
author source checksum desc
name catalog-id)
(when clear-other-checksums?
(query-exec (catalog-db-connection db)
(~a "DELETE FROM modules"
" WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
catalog-id
name
checksum)
(query-exec (catalog-db-connection db)
(~a "DELETE FROM dependencies"
" WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
catalog-id
name
checksum))
(void))))))
(define (get-pkg-tags name catalog)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-tags-table db)
(define catalog-id (url->catalog db catalog))
(query-list (catalog-db-connection db)
(~a "SELECT tag FROM tags"
" WHERE catalog=$1"
" AND pkg=$2")
catalog-id
name))))
(define (set-pkg-tags! name catalog tags)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-tags-table db)
(call-with-catalog-transaction
db
(lambda ()
(define catalog-id (url->catalog db catalog))
(query-exec (catalog-db-connection db)
(~a "DELETE FROM tags"
" WHERE catalog=$1"
" AND pkg=$2")
catalog-id
name)
(for ([tag (in-list tags)])
(query (catalog-db-connection db)
(~a "INSERT INTO tags"
" VALUES ($1, $2, $3)")
name catalog-id tag)))))))
(define (get-pkg-modules name catalog checksum)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-modules-table db)
(define catalog-id (url->catalog db catalog))
(map
string->mod
(query-list (catalog-db-connection db)
(~a "SELECT name FROM modules"
" WHERE catalog=$1"
" AND pkg=$2"
" AND checksum=$3")
catalog-id
name
checksum)))))
(define (set-pkg-modules! name catalog checksum modules)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-modules-table db)
(call-with-catalog-transaction
db
(lambda ()
(define catalog-id (url->catalog db catalog))
(query-exec (catalog-db-connection db)
(~a "DELETE FROM modules"
" WHERE catalog=$1"
" AND pkg=$2"
" AND checksum=$3")
catalog-id
name
checksum)
(for ([mod (in-list modules)])
(query (catalog-db-connection db)
(~a "INSERT INTO modules"
" VALUES ($1, $2, $3, $4)")
(mod->string mod) name catalog-id checksum)))))))
(define (get-module-pkgs mod)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-modules-table db)
(define rows
(query-rows (catalog-db-connection db)
(~a "SELECT M.pkg, P.url, M.checksum"
" FROM modules M, catalog P"
" WHERE M.name = $1"
" AND M.catalog = P.id")
(mod->string mod)))
(for/list ([row (in-list rows)])
(pkg (vector-ref row 0)
(vector-ref row 1)
""
""
(vector-ref row 2)
"")))))
(define (mod->string mp) (~s mp))
(define (string->mod str) (read (open-input-string str)))
(define (get-pkgs-without-modules #:catalog [catalog #f])
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-modules-table db)
(define rows
(apply
query-rows
(catalog-db-connection db)
(~a "SELECT K.name, N.url, K.checksum"
" FROM pkg K, catalog N"
" WHERE N.id = K.catalog"
(if catalog
" AND N.url = $1"
"")
" AND NOT EXISTS"
" (SELECT M.name"
" FROM modules M"
" WHERE M.pkg = K.name"
" AND M.catalog = K.catalog"
" AND M.checksum = K.checksum)")
(append
(if catalog
(list catalog)
null))))
(for/list ([row (in-list rows)])
(pkg (vector-ref row 0)
(vector-ref row 1)
""
""
(vector-ref row 2)
"")))))
(define (get-pkg-dependencies name catalog checksum)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-dependencies-table db)
(define catalog-id (url->catalog db catalog))
(define rows
(query-rows (catalog-db-connection db)
(~a "SELECT onpkg, onversion, onplatform"
" FROM dependencies"
" WHERE catalog=$1"
" AND pkg=$2"
" AND checksum=$3")
catalog-id
name
checksum))
(for/list ([row (in-list rows)])
(define on-pkg (vector-ref row 0))
(define on-version (vector-ref row 1))
(define on-platform (vector-ref row 2))
(cons on-pkg
(append
(if (equal? on-version "")
null
(list '#:version on-version))
(if (equal? on-platform "")
null
(list '#:platform (string->platform on-platform)))))))))
(define (set-pkg-dependencies! name catalog checksum dependencies)
(define (get-keyed l k wrap)
(define a (memq k l))
(if a (wrap (cadr a)) ""))
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-dependencies-table db)
(call-with-catalog-transaction
db
(lambda ()
(define catalog-id (url->catalog db catalog))
(query-exec (catalog-db-connection db)
(~a "DELETE FROM dependencies"
" WHERE catalog=$1"
" AND pkg=$2"
" AND checksum=$3")
catalog-id
name
checksum)
(for ([dep (in-list dependencies)])
(query (catalog-db-connection db)
(~a "INSERT INTO dependencies"
" VALUES ($1, $2, $3, $4, $5, $6)")
(cond
[(string? dep) dep]
[else (car dep)])
(cond
[(string? dep) ""]
[(and (list? dep) (= 2 (length dep)))
(cadr dep)]
[else (get-keyed (cdr dep) '#:version values)])
(cond
[(string? dep) ""]
[(and (list? dep) (= 2 (length dep)))
""]
[else (get-keyed (cdr dep) '#:platform platform->string)])
name catalog-id checksum)))))))
(define (platform->string dep) (~s dep))
(define (string->platform str) (read (open-input-string str)))
(define (get-catalogs)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(query-list (catalog-db-connection db)
(~a "SELECT url FROM catalog"
" ORDER BY pos")))))
(define (set-catalogs! urls)
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-tags-table db)
(prepare-modules-table db)
(prepare-dependencies-table db)
(call-with-catalog-transaction
db
(lambda ()
(define current-url+ids
(query-rows (catalog-db-connection db) "SELECT url, id FROM catalog"))
(define old-urls (for/list ([old (in-list current-url+ids)])
(vector-ref old 0)))
(for ([old (in-list current-url+ids)])
(define old-url (vector-ref old 0))
(define old-id (vector-ref old 1))
(unless (member old-url urls)
(query-exec (catalog-db-connection db)
"DELETE FROM catalog WHERE id=$1"
old-id)
(query-exec (catalog-db-connection db)
"DELETE FROM pkg WHERE catalog=$1"
old-id)
(query-exec (catalog-db-connection db)
"DELETE FROM tags WHERE catalog=$1"
old-id)
(query-exec (catalog-db-connection db)
"DELETE FROM modules WHERE catalog=$1"
old-id)
(query-exec (catalog-db-connection db)
"DELETE FROM dependencies WHERE catalog=$1"
old-id)))
(for ([new-url (in-list urls)])
(unless (member new-url old-urls)
(let loop ([id 0])
(if (query-maybe-row (catalog-db-connection db)
"SELECT url FROM catalog WHERE id=$1"
id)
(loop (add1 id))
(query-exec (catalog-db-connection db)
"INSERT INTO catalog VALUES ($1, $2, 0)"
id
new-url)))))
(for ([new-url (in-list urls)]
[pos (in-naturals)])
(query-exec (catalog-db-connection db)
(~a "UPDATE catalog"
" SET pos = $1"
" WHERE url = $2")
pos
new-url)))))))
(define (url->catalog db url)
(query-value (catalog-db-connection db)
"SELECT id FROM catalog WHERE url=$1"
url))
(define (set-pkgs! url pkgs
#:clear-other-checksums? [clear-other-checksums? #t])
(call-with-catalog-db
(lambda (db)
(prepare-catalog-table db)
(prepare-pkg-table db)
(prepare-modules-table db)
(prepare-dependencies-table db)
(call-with-catalog-transaction
db
(lambda ()
(define catalog (url->catalog db url))
(define pkg-names (for/list ([p (in-list pkgs)])
(if (pkg? p)
(pkg-name p)
p)))
(define current-pkgs
(query-list (catalog-db-connection db)
"SELECT name FROM pkg WHERE catalog=$1"
catalog))
(define new-pkgs (list->set pkg-names))
(define old-pkgs (list->set current-pkgs))
(for ([old (in-list current-pkgs)])
(unless (set-member? new-pkgs old)
(query-exec (catalog-db-connection db)
"DELETE FROM pkg WHERE catalog=$1 AND name=$2"
catalog
old)
(query-exec (catalog-db-connection db)
"DELETE FROM tags WHERE catalog=$1 AND pkg=$2"
catalog
old)
(query-exec (catalog-db-connection db)
"DELETE FROM modules WHERE catalog=$1 AND pkg=$2"
catalog
old)
(query-exec (catalog-db-connection db)
"DELETE FROM dependencies WHERE catalog=$1 AND pkg=$2"
catalog
old)))
(for ([new0 (in-list pkgs)])
(define new (if (pkg? new0)
new0
(pkg new0 "" "" "" "" "")))
(when (and clear-other-checksums?
(not (equal? "" (pkg-checksum new))))
(query-exec (catalog-db-connection db)
(~a "DELETE FROM modules"
" WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
catalog
(pkg-name new)
(pkg-checksum new))
(query-exec (catalog-db-connection db)
(~a "DELETE FROM dependencies"
" WHERE catalog=$1 AND pkg=$2 AND checksum<>$3")
catalog
(pkg-name new)
(pkg-checksum new)))
(unless (and (string? new0)
(set-member? old-pkgs new0))
(if (set-member? old-pkgs (pkg-name new))
(query-exec (catalog-db-connection db)
(~a "UPDATE pkg"
" SET author=$1, source=$2, checksum=$3, desc=$4"
" WHERE name=$5"
" AND catalog=$6")
(pkg-author new)
(pkg-source new)
(pkg-checksum new)
(pkg-desc new)
(pkg-name new)
catalog)
(query-exec (catalog-db-connection db)
"INSERT INTO pkg VALUES ($1, $2, $3, $4, $5, $6)"
(pkg-name new)
catalog
(pkg-author new)
(pkg-source new)
(pkg-checksum new)
(pkg-desc new))))))))))
(define (prepare-table db which desc [index #f])
(define ready-tables (catalog-db-ready-tables db))
(unless (hash-ref ready-tables which #f)
(hash-set! ready-tables which #t)
(when (null?
(query-rows (catalog-db-connection db)
(~a "SELECT name FROM sqlite_master"
" WHERE type='table' AND name='" which "'")))
(query-exec (catalog-db-connection db)
(~a "CREATE TABLE " which " "
desc))
(when index
(query-exec (catalog-db-connection db)
(~a "CREATE INDEX " which "_index "
"ON " which " " index))))))
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