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- File: Backup.FPL
- Author: Daniel Stenberg
- Email: dast@sth.frontec.se, FidoNet 2:201/328
- Short description: Make backups at save-time
- Version: 1.0
- Date: 22.4.94
- Local settings: "backup" ("_backup" is hidden)
- Global settings: "backup_suffix"
- Keysequence:
- Type: Hook
- Prereq:
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-
- FUNCTION
-
- The reason for this program is to save us all from the following scenario:
- You load a file, modify and save it and then quits. You try to compile the
- new file and after the compiler has discovered the 47 errors in the file,
- you get second thoughts about the latest modification and want to get back the
- previous version of the file.
-
- This program hooks Save() and performs a safety copy of the file that is to
- be overwritten by the save operation. The backup is only performed at the
- first save of the file, at not at any later time during the editing session.
-
- The backup file will get a suffix that defaults to ".bak" (changeable
- through the "backup_suffix" global setting). If the backup file already exists
- when the backup copy is about to perform, a requester will appear propting if
- the file should be overwritten or not. Whether the answer is true or false,
- the operation will be marked internally as if the backup has been done!
-
- The backup option is switchable on/off with the local boolean setting called
- "backup".
-
- BUGS
-
- I use the AmigaDOS command "list" to check whether the backup file already
- exist or not. Even with the stdout redirected to NIL: some error text will be
- generated to stderr (not redirectable!) when the backup file is absent.
-