start-commit
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## Name

start-commit — Notification of the beginning of a commit.

## Description

The start-commit hook is run before the commit transaction is even created. It is typically used to decide whether the user has commit privileges at all.

If the start-commit hook program returns a nonzero exit value, the commit is stopped before the commit transaction is even created, and anything printed to `stderr` is marshalled back to the client.

## Input Parameter(s)

The command-line arguments passed to the hook program, in order, are:

1. Repository path

2. Authenticated username attempting the commit

3. Colon-separated list of capabilities that a client passes to the server, including `depth`, `mergeinfo`, and `log-revprops` (new in Subversion 1.5).

## Common uses

Access control (e.g., temporarily lock out commits for some reason).

A means to allow access only from clients that have certain capabilities.

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