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@ -10,63 +10,60 @@
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compiler/cm)
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(provide (all-defined-out))
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(define (paths->key source-path [template-path #f] [output-path #f])
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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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;; key is list of file + mod-time pairs, use #f for missing
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;; we don't include output-path in path-strings-to-track
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;; because we don't want to attach a mod date
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;; because cache validity is not sensitive to mod date of output path
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;; (in fact we would expect it to be earlier, since we want to rely on an earlier version)
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(define path-strings-to-track (list* source-path
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;; if template has a source file, track that instead
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(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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(append (->list (get-directory-require-files source-path))
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;; user-designated files to track
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(map ->string (setup:cache-watchlist 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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;; key is list of file + mod-time pairs, use #f for missing
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;; we don't include output-path in path-strings-to-track
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;; because we don't want to attach a mod date
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;; because cache validity is not sensitive to mod date of output path
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;; (in fact we would expect it to be earlier, since we want to rely on an earlier version)
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(define (paths->key source-path [template-path #false] [output-path #false])
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(define path-strings-to-track
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(list* source-path
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;; if template has a source file, track that instead
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(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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(append (->list (get-directory-require-files source-path))
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;; user-designated files to track
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(map ->string (setup:cache-watchlist source-path)))))
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(define pollen-env (getenv default-env-name))
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(define poly-flag (and (has-inner-poly-ext? source-path) (current-poly-target)))
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(define path+mod-time-pairs
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(for/list ([ps (in-list path-strings-to-track)])
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(cond
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[ps (define cp (->complete-path ps))
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(cons (path->string cp) (file-or-directory-modify-seconds cp #f (λ () 0)))]
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[else #f])))
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(cond
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[ps (define cp (->complete-path ps))
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(cons (path->string cp) (file-or-directory-modify-seconds cp #false (λ () 0)))]
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[else #false])))
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(list* pollen-env poly-flag (and output-path (path->string output-path)) path+mod-time-pairs))
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(define (key->source-path key) (car (fourth key)))
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(define (key->output-path key) (third key))
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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-module-ns)
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(define-namespace-anchor cache-utils-module-ns)
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(define (path->hash path)
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(for-each managed-compile-zo (or (get-directory-require-files path) null))
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(define path-dir (dirname path))
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(apply hasheq
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(let ([doc-key (setup:main-export)]
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[meta-key (setup:meta-export)])
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(let ([doc-key (setup:main-export)] [meta-key (setup:meta-export)])
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(unless (and (symbol? doc-key) (symbol? meta-key))
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(raise-argument-error 'path->hash "symbols for doc and meta key" (cons doc-key meta-key)))
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;; new namespace forces `dynamic-require` to re-instantiate 'path'
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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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;; new namespace forces `dynamic-require` to re-instantiate `path`
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;; otherwise it gets cached in current namespace.
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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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[current-directory (dirname path)])
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(namespace-attach-module
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(namespace-anchor->namespace cache-module-ns)
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'pollen/setup (current-namespace)) ; brings in currently instantiated params (unlike namespace-require)
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(define doc-missing-thunk (λ () ""))
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(define metas-missing-thunk (λ () (hasheq)))
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(list doc-key (dynamic-require path doc-key doc-missing-thunk)
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@ -96,16 +93,16 @@
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(define-values (cache-dir private-cache-dir) (make-cache-dirs dest-path))
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(define-values (dest-path-dir dest-path-filename _) (split-path dest-path))
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(define dest-file (build-path cache-dir (format "~a.rktd" dest-path-filename)))
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(define (fetch-dest-file) (write-to-file (path-hash-thunk) dest-file #:exists 'replace))
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#|
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`cache-file` looks for a file in private-cache-dir previously cached with key
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(which in this case carries modification dates and POLLEN env).
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If a cached file is found, copies it to dest-file (which must not exist already, unless exists-ok? is true)
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Otherwise, fetch-dest-file is called; if dest-file exists after calling fetch-dest-file,
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it is copied to private-cache-dir and recorded with key.
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|#
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(define (fetch-dest-file)
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(write-to-file (path-hash-thunk) dest-file #:exists 'replace))
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;; `cache-file` looks for a file in private-cache-dir previously cached with key
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;; (which in this case carries modification dates and POLLEN env).
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;; If a cached file is found, copies it to dest-file (which must not exist already, unless exists-ok? is true)
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;; Otherwise, fetch-dest-file is called; if dest-file exists after calling fetch-dest-file,
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;; it is copied to private-cache-dir and recorded with key.
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(cache-file dest-file
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#:exists-ok? #t
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#:exists-ok? #true
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key
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private-cache-dir
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fetch-dest-file
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