jadedctrl/ chicken-chatdir
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Better symlink-juggling; directory-file-set!… 

… can now create blank files as necessary.
This commit is contained in:
Jaidyn Ann 2023-05-29 00:24:49 -05:00
parent 063e63970e
commit 1c11697c5a
1 changed files with 19 additions and 8 deletions
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27
chatdir.scm
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@ -41,6 +41,7 @@
(define (channels root)
(directory root))
;; Creates a channel's file hierarchy; safe to run, even if the channel
;; has already been created.
(define (channel-add! root channel)
@ -163,8 +164,10 @@
#!optional (global? #t) (global-pairity? #t) (global-name #f))
(let* ([g-name (if global-name global-name username)]
[user-path (subpath root channel ".users" "all" username)]
[g-user-path (subpath root ".users" g-name)])
(cond [(or (file-exists? user-path) (directory-exists? user-path))
[g-user-path (subpath root ".users" g-name)]
[g-local-path (subpath g-user-path "local" channel)])
(cond [(or (file-exists? user-path) (directory-exists? user-path)
(symbolic-link? user-path))
#f]
;; If global, we gotta do some symlink dancing.
[global?
@ -173,12 +176,16 @@
(create-symbolic-link (subpath "../../../.users" g-name) user-path)
(create-directory user-path #t))
(create-symbolic-link (subpath "../../../../.users" g-name)
(subpath user-path "global"))
(create-symbolic-link (subpath "../../../" channel ".users" "all" username)
(subpath g-user-path "local" channel))]
(subpath user-path "global"))]
;; This is a channel-only user, don't bother with symlink fanciness.
[#t
(create-directory user-path #t)])))
(create-directory user-path #t)])
;; Link all of a global-pairity user's joined directories to its "local" dir.
(if (and global-pairity?
(not (symbolic-link? g-local-path)))
(create-symbolic-link
(subpath "../../../" channel ".users" "all" username)
(subpath g-user-path "local" channel)))))
;; Sets a file in the channel-user's directory to given value.
@ -303,14 +310,18 @@
;; Set the contents of a directory's file `key` to `value`, setting any
;; extended attributes passed as xattr-alist.
(define (directory-file-set! directory key value #!optional (xattr-alist '()))
(let ([path (subpath directory key)])
(let ([path (subpath (create-directory directory #t)
key)])
;; Write the contents (value)
(cond [(string? value)
(write-string-to-file path value)]
[(input-port? value)
(write-port-to-file path value)]
[(list? value)
(write-byte-list-to-file path value)])
(write-byte-list-to-file path value)]
;; If no data sent (e.g., value is #f), at least make the file!
[(not (file-exists? path))
(write-string-to-file path "")])
;; Write the xattrs (if applicable)
(map (lambda (xattr-cons)