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better checks for get-template-for

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pull/15/merge
Matthew Butterick 10 years ago
parent b4af1936d5
commit ec4863b4a0
7 changed files with 52 additions and 50 deletions
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2
doc/Template.html
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4
doc/World.html
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2
doc/doc-index.html
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87
render.rkt
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@ -36,7 +36,7 @@
(() #:rest (listof (or/c #f complete-path?)) . ->* . boolean?)
(define key (make-mod-dates-key rest-paths))
(or (not (key . in? . modification-date-hash)) ; no stored mod date
(not (equal? (map path->mod-date-value key) (get modification-date-hash key))))) ; data has changed
(not (equal? (map path->mod-date-value key) (get modification-date-hash key))))) ; data has changed
(define/contract+provide (render-batch . xs)
@ -47,15 +47,15 @@
;; Using reset-modification-dates is sort of like session control.
(reset-modification-dates)
(for-each (λ(x) ((if (pagetree-source? x)
render-pagetree
render-from-source-or-output-path) x)) xs))
render-pagetree
render-from-source-or-output-path) x)) xs))
(define/contract+provide (render-pagetree pagetree-or-path)
((or/c pagetree? pathish?) . -> . void?)
(define pagetree (if (pagetree? pagetree-or-path)
pagetree-or-path
(cached-require pagetree-or-path world:main-pollen-export)))
pagetree-or-path
(cached-require pagetree-or-path world:main-pollen-export)))
(parameterize ([current-directory (world:current-project-root)])
(for-each render-from-source-or-output-path (map ->complete-path (pagetree->list pagetree)))))
@ -75,8 +75,8 @@
(complete-path? . -> . (values complete-path? complete-path?))
;; file-proc returns two values, but ormap only wants one
(define file-proc (ormap (λ(test file-proc) (and (test source-or-output-path) file-proc))
(list has/is-null-source? has/is-preproc-source? has/is-markup-source? has/is-scribble-source? has/is-markdown-source? has/is-template-source?)
(list ->null-source+output-paths ->preproc-source+output-paths ->markup-source+output-paths ->scribble-source+output-paths ->markdown-source+output-paths ->template-source+output-paths)))
(list has/is-null-source? has/is-preproc-source? has/is-markup-source? has/is-scribble-source? has/is-markdown-source? has/is-template-source?)
(list ->null-source+output-paths ->preproc-source+output-paths ->markup-source+output-paths ->scribble-source+output-paths ->markdown-source+output-paths ->template-source+output-paths)))
(file-proc source-or-output-path))
@ -95,9 +95,9 @@
(define/contract (render-needed? source-path template-path output-path)
(complete-path? (or/c #f complete-path?) complete-path? . -> . boolean?)
(or (not (file-exists? output-path))
(modification-date-expired? source-path template-path)
(and (not (null-source? source-path)) (file-needed-rerequire? source-path))
(and (world:check-project-requires-in-render?) (project-requires-changed? source-path))))
(modification-date-expired? source-path template-path)
(and (not (null-source? source-path)) (file-needed-rerequire? source-path))
(and (world:check-project-requires-in-render?) (project-requires-changed? source-path))))
(define/contract+provide (render-to-file-if-needed source-path [template-path #f] [maybe-output-path #f] #:force [force #f])
@ -119,8 +119,8 @@
(define render-proc
(cond
[(ormap (λ(test render-proc) (and (test source-path) render-proc))
(list has/is-null-source? has/is-preproc-source? has/is-markup-source? has/is-scribble-source? has/is-markdown-source? has/is-template-source?)
(list render-null-source render-preproc-source render-markup-or-markdown-source render-scribble-source render-markup-or-markdown-source render-preproc-source))]
(list has/is-null-source? has/is-preproc-source? has/is-markup-source? has/is-scribble-source? has/is-markdown-source? has/is-template-source?)
(list render-null-source render-preproc-source render-markup-or-markdown-source render-scribble-source render-markup-or-markdown-source render-preproc-source))]
[else (error (format "render: no rendering function found for ~a" source-path))]))
(message (format "render: ~a" (file-name-from-path source-path)))
@ -183,17 +183,18 @@
(complete-path? . -> . (or/c #f complete-path?))
(match-define-values (source-dir _ _) (split-path source-path))
(and (templated-source? source-path) ; doesn't make sense if it's not a templated source format
(or ; Build the possible paths and use the first one that either exists, or has existing source (template, preproc, or null)
(ormap (λ(p) (if (ormap file-exists? (list p (->template-source-path p) (->preproc-source-path p) (->null-source-path p))) p #f))
(let ([output-path (->output-path source-path)])
(or ; Build the possible paths and use the first one that either exists, or has existing source (template, preproc, or null)
(ormap (λ(p) (if (ormap file-exists? (list p (->template-source-path p) (->preproc-source-path p) (->null-source-path p))) p #f))
(filter (λ(x) (->boolean x)) ; if any of the possibilities below are invalid, they return #f
(list
(parameterize ([current-directory (world:current-project-root)])
(let ([source-metas (cached-require source-path 'metas)])
(and ((->symbol world:template-meta-key) . in? . source-metas)
(build-path source-dir (select-from-metas (->string world:template-meta-key) source-metas))))) ; path based on metas
(and (filename-extension (->output-path source-path)) (build-path (world:current-project-root)
(add-ext world:default-template-prefix (get-ext (->output-path source-path)))))))) ; path to default template
(build-path (world:current-server-extras-path) world:fallback-template)))) ; fallback template
(list
(parameterize ([current-directory (world:current-project-root)])
(let ([source-metas (cached-require source-path 'metas)])
(and ((->symbol world:template-meta-key) . in? . source-metas)
(build-path source-dir (select-from-metas (->string world:template-meta-key) source-metas))))) ; path based on metas
(and (filename-extension output-path) (build-path (world:current-project-root)
(add-ext world:default-template-prefix (get-ext output-path))))))) ; path to default template
(and (filename-extension output-path) (build-path (world:current-server-extras-path) (add-ext world:fallback-template-prefix (get-ext output-path)))))))) ; fallback template
(define/contract (file-needed-rerequire? source-path)
@ -228,27 +229,27 @@
(current-eval-namespace-cache (cons cache-ns (cons module-name cached-modules)))))
(define initial-modules-to-cache '(web-server/templates
xml
racket/port
racket/file
racket/rerequire
racket/contract
racket/list
racket/match
racket/syntax
pollen/cache
pollen/debug
pollen/decode
pollen/file
pollen/main
pollen/reader-base
pollen/pagetree
pollen/tag
pollen/template
pollen/world
pollen/project
sugar
txexpr))
xml
racket/port
racket/file
racket/rerequire
racket/contract
racket/list
racket/match
racket/syntax
pollen/cache
pollen/debug
pollen/decode
pollen/file
pollen/main
pollen/reader-base
pollen/pagetree
pollen/tag
pollen/template
pollen/world
pollen/project
sugar
txexpr))
(for-each add-module-to-current-eval-cache initial-modules-to-cache)

4
scribblings/world.scrbl
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@ -90,8 +90,8 @@ The magic character that indicates a Pollen command, function, or variable. Init
@defthing[world:default-template-prefix string?]
Prefix of the default template. Initialized to @racket["template"].
@defthing[world:fallback-template string?]
Name of the fallback template (i.e., the template used to render a Pollen markup file when no other template can be found). Initialized to @racket["fallback.html.pt"].
@defthing[world:fallback-template-prefix string?]
Used to generate the name of the fallback template (i.e., the template used to render a Pollen markup file when no other template can be found). Prefix is combined with the output suffix of the source file. Initialized to @racket["fallback"].
@defthing[world:template-meta-key symbol?]
Meta key used to store a template name for that particular source file. Initialized to @racket['template].

1
server-extras/fallback.txt
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@ -0,0 +1 @@
◊doc

2
world.rkt
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@ -28,7 +28,7 @@
(define template-command-marker #\∂)
(define default-template-prefix "template")
(define fallback-template "fallback.html")
(define fallback-template-prefix "fallback")
(define template-meta-key "template")
(define main-pollen-export 'doc) ; don't forget to change fallback template too

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