Public archive for the Return to Ritherdon project.
https://www.nicolaellisandritherdon.com
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62 lines
2.7 KiB
62 lines
2.7 KiB
(in-package #:cl-user) |
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(defpackage #:snapshot |
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(:use #:cl |
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#:utils |
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#:storage |
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#:nera) |
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(:export |
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#:take-snapshot |
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#:restore-from-snapshot |
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#:delete-snapshot |
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#:store-snapshot)) |
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(in-package #:snapshot) |
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(defun take-snapshot () |
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"Takes a Snapshot of the website's data and stores it in /snapshots. |
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I've not included make a SQL dump of the Meilisearch database here because the |
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user can repopulate that database after they have restored this website. The |
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'repopulate' feature is built into the website already." |
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(let ((snapshot-directory |
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(format nil "~a_~a/" |
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(utils:slugify |
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(site-settings::site-name-of (nera:get-site-settings))) |
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(utils:create-timestamp-text)))) |
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(storage:ensure-raw-directory-exists |
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(format nil "snapshots/~a" snapshot-directory)) |
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(storage:copy-storage-directory |
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(format nil "snapshots/~a/storage/" snapshot-directory)) |
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(storage:copy-raw-directory |
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"db/" (format nil "snapshots/~a/db/" snapshot-directory)))) |
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(defun restore-from-snapshot (snapshot-name) |
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"Deletes the data in /storage and the DB and replaces it with `SNAPSHOT-NAME'." |
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(storage:remove-raw-directory "storage/") |
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(storage:remove-raw-directory "db/") |
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(storage:copy-raw-directory (format nil "snapshots/~a/storage/" snapshot-name) "storage/") |
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(storage:copy-raw-directory (format nil "snapshots/~a/db/" snapshot-name) "db/")) |
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(defun delete-snapshot (snapshot-name) |
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"Deletes the snapshot in the /snapshots directory with `SNAPSHOT-NAME'." |
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(storage:remove-raw-directory (format nil "snapshots/~a/" snapshot-name))) |
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(defun store-snapshot (filename data) |
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"Unzips `SNAPSHOT-FILE' and stores it in /snapshots directory. |
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The .zip file is deleted after it has been un-zipped. I did think about moving |
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the zipped version of the file into the /storage/media directory but there is |
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too much second guessing going on. I found I was uploading .zip files from the |
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/storage/media directory and I don't know if users will be uploading .zip files |
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they had just downloaded from /storage/media. If that is the case, then there |
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is: |
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|
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a.) No need to move it to /storage/madia; |
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b.) Extra work regarding checks for duplicate entries; and, |
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c.) I don't know if that is too much 'magic' for users and cause confusion. |
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If the user is in a paniced state -- trying to restore their website, confusion |
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is the thing I want to keep to a minimum for them." |
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(storage:store-with-raw-path (format nil "snapshots/~a" filename) data) |
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(zip:unzip (storage:make-raw-path (format nil"snapshots/~a" filename)) |
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(storage:make-raw-path (format nil "snapshots/~a/" |
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(pathname-name filename)))) |
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(storage:remove-file-with-raw-path (format nil "snapshots/~a" filename)))
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