thorp/README.org
Paul Campbell 561966218c
Remove repo badges
Until releases are made, these are just distractions.
2019-06-30 19:49:22 +01:00

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* thorp
Synchronisation of files with S3 using the hash of the file contents.
[[https://www.codacy.com/app/kemitix/thorp][file:https://img.shields.io/codacy/grade/c1719d44f1f045a8b71e1665a6d3ce6c.svg?style=for-the-badge]]
Originally based on Alex Kudlick's [[https://github.com/akud/aws-s3-sync-by-hash][aws-s3-sync-by-hash]].
The normal ~aws s3 sync ...~ command only uses the time stamp of files
to decide what files need to be copied. This utility looks at the md5
hash of the file contents.
* Usage
#+begin_example
thorp
Usage: thorp [options]
-s, --source <value> Source directory to sync to S3
-b, --bucket <value> S3 bucket name
-p, --prefix <value> Prefix within the S3 Bucket
-i, --include <value> Include matching paths
-x, --exclude <value> Exclude matching paths
-d, --debug Enable debug logging
--no-global Ignore global configuration
--no-user Ignore user configuration
#+end_example
If you don't provide a ~source~ the current diretory will be used.
The ~--include~ and ~--exclude~ parameters can be used more than once.
* Configuration
Configuration will be read from these files:
- Global: ~/etc/thorp.conf~
- User: ~ ~/.config/thorp.conf~
- Source: ~${source}/.thorp.conf~
Command line arguments override those in Source, which override those
in User, which override those Global, which override any built-in
config.
Built-in config consists of using the current working directory as the
~source~.
Note, that ~include~ and ~exclude~ are cumulative across all
configuration files.
* Behaviour
When considering a local file, the following table governs what should happen:
|---+------------+------------+------------------+--------------------+---------------------|
| # | local file | remote key | hash of same key | hash of other keys | action |
|---+------------+------------+------------------+--------------------+---------------------|
| 1 | exists | exists | matches | - | do nothing |
| 2 | exists | is missing | - | matches | copy from other key |
| 3 | exists | is missing | - | no matches | upload |
| 4 | exists | exists | no match | matches | copy from other key |
| 5 | exists | exists | no match | no matches | upload |
| 6 | is missing | exists | - | - | delete |
|---+------------+------------+------------------+--------------------+---------------------|
* Executable JAR
To build as an executable jar, perform `sbt assembly`
This will create the file `cli/target/scala-2.12/thorp`
Copy this file to your `PATH`.