October 2016
Intermediate to advanced
394 pages
8h 16m
English
Content preview from .Go Programming Blueprints - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The daemon backup tool
The backup tool, which we will call backupd, will be responsible for periodically checking the paths listed in the filedb database, hashing the folders to see whether anything has changed, and using the backup package to actually perform the archiving of the folders that need it.
Create a new folder called backupd alongside the backup/cmds/backup folder, and let's jump right into handling the fatal errors and flags:
func main() { var fatalErr error defer func() { if fatalErr != nil { log.Fatalln(fatalErr) } }() var ( interval = flag.Duration("interval", 10 * time.Second, "interval between checks") archive = flag.String("archive", "archive", "path to archive location") dbpath = flag.String("db", "./db", "path to filedb database") ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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