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79 lines
4.0 KiB
Racket
79 lines
4.0 KiB
Racket
#lang racket/base
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(require "file-utils.rkt" "../setup.rkt" "project.rkt" file/cache racket/file sugar/coerce compiler/cm)
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(provide (all-defined-out))
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(define (paths->key source-path [template-path #f])
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;; key is list of file + mod-time pairs, use #f for missing
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(define path-strings (append (list source-path)
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;; if template has a source file, track that instead
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(append (list (and template-path (or (get-source template-path) template-path)))
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;; is either list of files or (list #f)
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(->list (get-directory-require-files source-path)))))
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;; can't use relative paths for cache keys because source files include `here-path` which is absolute.
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;; problem is that cache could appear valid on another filesystem (based on relative pathnames & mod dates)
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;; but would actually be invalid (because the `here-path` names are wrong).
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(define poly-flag (and (has-inner-poly-ext? source-path) (setup:current-poly-target)))
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(define pollen-env (getenv setup:default-env-name))
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(define path+mod-time-pairs
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(map (λ(ps) (and ps (let ([cp (->complete-path ps)])
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(cons (path->string cp) (with-handlers ([exn:fail? (λ _ 0)])
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(file-or-directory-modify-seconds cp)))))) path-strings))
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(list* pollen-env poly-flag path+mod-time-pairs))
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(define (key->source-path key)
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(car (caddr key)))
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(require sugar/test)
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(module-test-internal
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(define ps "/users/nobody/project/source.html.pm")
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(check-equal? (key->source-path (paths->key ps)) ps))
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(define-namespace-anchor cache-utils-module-ns)
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(define (path->hash path)
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;; new namespace forces dynamic-require to re-instantiate 'path'
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;; otherwise it gets cached in current namespace.
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(define drfs (get-directory-require-files path))
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(for-each managed-compile-zo (or drfs null))
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(define path-dir (dirname path))
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(apply hash
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(let ([doc-key (setup:main-export)]
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[meta-key (setup:meta-export)])
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(parameterize ([current-namespace (make-base-namespace)]
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[current-directory path-dir])
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;; I monkeyed around with using the metas submodule to pull out the metas (for speed)
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;; but in practice most files get their doc requested too.
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;; so it's just simpler to get both at once and be done with it.
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;; the savings of avoiding two cache fetches at the outset outweighs
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;; the benefit of not reloading doc when you just need metas.
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(namespace-attach-module (namespace-anchor->namespace cache-utils-module-ns) 'pollen/setup) ; brings in params
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(list doc-key (dynamic-require path doc-key) meta-key (dynamic-require path meta-key))))))
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(define (my-make-directory* dir)
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(let-values ([(base name dir?) (split-path dir)])
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(when (and (path? base) (not (directory-exists? base)))
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(my-make-directory* base))
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(unless (directory-exists? dir)
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(with-handlers ([exn:fail:filesystem:exists? void])
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(make-directory dir)))))
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(define (make-cache-dirs path)
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(define path-dir (dirname path))
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(define cache-dir (build-path path-dir (setup:cache-dir-name)))
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(define private-cache-dir (build-path cache-dir "private"))
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(my-make-directory* private-cache-dir) ; will also make cache-dir, if needed
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(values cache-dir private-cache-dir))
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(define (cache-ref! key path-hash-thunk)
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(define path (key->source-path key))
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(define-values (cache-dir private-cache-dir) (make-cache-dirs path))
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(define-values (path-dir path-filename _) (split-path path))
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(define dest-file (build-path cache-dir (format "~a.rktd" path-filename)))
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(cache-file dest-file
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#:exists-ok? #t
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key
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private-cache-dir
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(λ _
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(write-to-file (path-hash-thunk) dest-file #:exists 'replace))
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#:max-cache-size (setup:compile-cache-max-size))
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(file->value dest-file)) |