With-files-write macro #6
59
main.lisp
59
main.lisp
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@ -31,26 +31,30 @@
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recieved, two values are returned: NIL and the string-error-message."
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(let ((result
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(drakma:http-request
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(make-call-url *api-host* *api-root* call arguments)
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(make-call-url call arguments)
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:method method
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:url-encoder #'ipfs::url-encode
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:parameters parameters
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:want-stream want-stream)))
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(if want-stream
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result
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(process-result result))))
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(cond (want-stream result)
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((stringp result) (values nil result))
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((vectorp result)
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(let* ((string (flexi-streams:octets-to-string result))
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(alist
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(with-input-from-string (stream string)
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(loop while (peek-char t stream nil)
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collect (yason:parse stream :object-as :alist)))))
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(if (ignore-errors (equal (cdr (s-assoc "Type" (simplify alist))) "error"))
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(values NIL (cdr (s-assoc "Message" (simplify alist))))
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(simplify alist)))))))
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(defun process-result (result)
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(cond
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((stringp result) (values nil result))
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((vectorp result)
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(let* ((string (flexi-streams:octets-to-string result))
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(alist
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(with-input-from-string (stream string)
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(loop while (peek-char t stream nil)
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collect (yason:parse stream :object-as :alist)))))
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(if (ignore-errors (equal (cdr (s-assoc "Type" (simplify alist))) "error"))
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(values NIL (cdr (s-assoc "Message" (simplify alist))))
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(simplify alist))))))
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;; STRING STRING LIST → STRING
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(defun make-call-url (host root call arguments)
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;; STRING LIST &key STRING STRING → STRING
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(defun make-call-url (call arguments &key (host *api-host*) (root *api-root*))
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"Create the URL of an API call, as per the given arguments.
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Symbols are assumed to be something like 'T (so boolean), nil likewise.
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Arguments should look like this:
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@ -497,20 +501,27 @@
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;; PATHNAME STRING [:NUMBER :BOOLEAN :BOOLEAN :BOOLEAN :NUMBER :BOOLEAN
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;; :NUMBER :STRING]
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;; → NIL || (NIL STRING)
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(defun files-write (pathname dest-path
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(defun files-write (path-or-string dest-path
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&key (offset nil) (create nil) (parents nil)
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(truncate nil) (count nil) (raw-leaves nil)
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(cid-version nil) (hash nil))
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"Write to a given file.
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"Write to a given file. First parameter can be a string or a path to
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a local file.
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/ipns/docs.ipfs.io/reference/api/http/#api-v0-files-rm"
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(ipfs-call "files/write"
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`(("arg" ,dest-path) ("create" ,create) ("parents" ,parents)
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("truncate" ,truncate) ("raw-leaves" ,raw-leaves)
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,(if offset (list "offset" offset))
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,(if count (list "count" count))
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,(if cid-version `("cid-version" ,cid-version))
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,(if hash (list "hash" hash)))
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:parameters `(("file" . ,pathname))))
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(let ((result
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(drakma:http-request
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(make-call-url
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"files/write"
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`(("arg" ,dest-path) ("create", create) ("parents" ,parents)
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("truncate" ,truncate) ("raw-leaves" ,raw-leaves)
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,@(when offset (list "offset" offset))
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,@(when count (list "count" count))
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,@(when cid-version `("cid-version" ,cid-version))
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,@(when hash (list "hash" hash))))
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:method :post
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:parameters `(("data" . ,path-or-string))
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:form-data t)))
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(process-result result)))
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