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Post Update Callback provision #10

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Post Update Callback provision #10

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16cf739
Post Update Callback provision
sandipagarwal Feb 1, 2019
30deb53
Post Update Callback provision :: fail safe check
sandipagarwal Feb 7, 2019
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12 changes: 12 additions & 0 deletions s3update.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@ type Updater struct {
S3ReleaseKey string
// S3VersionKey represents the key on S3 to download the current version
S3VersionKey string
// PostUpdateHandler represents the function to be passed that is to be run after pulling the app
PostUpdateHandler func(dest string) error
}

// validate ensures every required fields is correctly set. Otherwise and error is returned.
Expand Down Expand Up @@ -147,6 +149,16 @@ func runAutoUpdate(u Updater) error {
return err
}

// Run the PostUpdateHandler handler
if u.PostUpdateHandler != nil {
fmt.Printf("s3update: updating using post handler\n")
if err := u.PostUpdateHandler(dest); err != nil {
fmt.Printf("s3update: error updating using post handler :: %s\n", err)
os.Rename(destBackup, dest)
return err
}
}

// Removing backup
os.Remove(destBackup)

Expand Down