git-clean - Remove untracked files from the working tree
Synopsis
git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <path>…
Description
Cleans the working tree by recursively removing files that are not under version control, starting from the current directory.
Normally, only files unknown to Git are removed, but if the -x option is specified, ignored files are also removed. This can, for example, be useful to remove all build products.
If any optional <path>... arguments are given, only those paths are affected.
Step 1 is to show what will be deleted by using the -n option:
# Print out the list of files and directories which will be removed (dry run)
git clean -n -d
Clean Step - beware: this will delete files:
# Delete the files from the repository
git clean -f
- To remove directories, run
git clean -f -d or git clean -fd
- To remove ignored files, run
git clean -f -X or git clean -fX
- To remove ignored and non-ignored files, run
git clean -f -x or git clean -fx
Note the case difference on the X for the two latter commands.
If clean.requireForce is set to "true" (the default) in your configuration, one needs to specify -f otherwise nothing will actually happen.
Again see the git-clean docs for more information.
Options
-f, --force
If the Git configuration variable clean.requireForce is not set to
false, git clean will refuse to run unless given -f, -n or -i.
-x
Don’t use the standard ignore rules read from .gitignore (per
directory) and $GIT_DIR/info/exclude, but do still use the ignore
rules given with -e options. This allows removing all untracked files,
including build products. This can be used (possibly in conjunction
with git reset) to create a pristine working directory to test a clean
build.
-X
Remove only files ignored by Git. This may be useful to rebuild
everything from scratch, but keep manually created files.
-n, --dry-run
Don’t actually remove anything, just show what would be done.
-d
Remove untracked directories in addition to untracked files. If an
untracked directory is managed by a different Git repository, it is
not removed by default. Use -f option twice if you really want to
remove such a directory.
Best Solution
I'm afraid the magic solution you're looking for does not exist. This file is normally managed in version control, then for any conflicts on the version line just choose the later of the two dates. As long as you're also running all of the associated migrations nothing should get out of sync this way. If two developers have caused modifications to a similar area of schema.rb and you get conflicts in addition to the version then you are faced with a normal merge conflict resolution, but in my opinion these are normally easy to understand and resolve. I hope this helps some!