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A pre-commit hook for git which dumps and adds a mysql database to the repository just before commit.
#!/bin/bash
# Pre-commit hook to make a mysql dump right before committing and add it to the commit.
#
## Change the following values to suit your local setup.
# The name of a database user with read access to the database.
DBUSER=root
# The password associated with the above user. Leave commented if none.
#DBPASS=seekrit
# The database associated with this repository.
DBNAME=dplay
# The path relative to the repository root in which to store the sql dump.
DBPATH=schema
[[ -d schema ]] || mkdir schema
if [ -t $DBPASS ]; then
mysqldump -u $DBUSER -p$DBPASS $DBNAME > $DBPATH/$DBNAME.sql
else
mysqldump -u $DBUSER $DBNAME > $DBPATH/$DBNAME.sql
fi
git add $DBPATH/$DBNAME.sql
exit 0
@MaartenW

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MaartenW commented May 27, 2013

In my case, working on a local Mac OS X, I needed to add the path to the executables. Resulting in:
/usr/local/mysql/bin/mysqldump ....
And in:
/usr/local/git/bin/git add ...

I also needed to change the comparison, the -t parameter was not recognized. -n did the trick though.
if [ -n $DBPASS]; then

@teledirigido

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teledirigido commented Jul 31, 2014

  1. $DBPATH is defined as a variables but then schema is explicity defined.
  2. I changed if [ -t $DBPASS ] for if [ -n $DBPASS ] and now works very good.

If you have git and mysqldump on your path variables you don't need to add any absolute url.

Thanks for sharing this!

@blaasvaer

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blaasvaer commented Sep 26, 2019

Seems a little mad to dump the DB on EVERY commit (unless of course all you do all the time is fiddling with the DB, but I doubt that would ever be the case in most scenarios). How could one add this as some sort of parameter to the command ... to make it a little more flexible? Imagine developing a Wordpress site, where the majority of the time you'd commit code changes, and on some you actually change values (settings and the like) in the DB. Now, that could be useful.

And by the way, I can't get it to actually add the file on the last command. It still gives me this:

Untracked files:
	/path/to/the/database.sql

... am I missing something?

@blaasvaer

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blaasvaer commented Sep 26, 2019

Could it have to do with async? As a large DB would take some time to actually be written to disk (as file), and then the "git add …" command is long past ... just a thought.

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