m

mongodb version management

npm install m
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m

MongoDB version manager

Installation

$ npm install -g m

or

$ git clone git://github.com/aheckmann/m.git && cd m && make install

Installing Binaries

Install a few versions, the version given becomes the active mongodb binary once installation is complete.

$ m 2.0.7
$ m 2.2.0-rc2

List installed binaries:

$ m

  2.0.6
ο 2.0.7
  2.2.0-rc2

Use or install the latest official release:

$ m latest

Use or install the stable official release:

$ m stable

Install a custom or patched version of mongodb from a tarball:

$ m custom 2.1.2-me https://github.com/aheckmann/mongo/tarball/r2.1.2

Install a version of mongodb from source (requires scons):

$ m 2.2.3-rc0 source

Removing Binaries

Remove some versions:

$ m rm 2.2.0-rc1 2.0.4 2.4.0-rc0

Note that you cannot remove the actively running version. Change to a different version before removing.

Binary Usage

When running multiple versions of mongodb, we can target them directly by asking m for the binary path:

$ m bin 2.0.7
/usr/local/m/versions/2.0.7/bin/

Start up mongod 2.0.7 regardless of the active version:

$ m use 2.0.7 --port 29000 --dbpath /data/2.0.7/

Execute a script with the 2.0.7 shell regardless of the active version:

$ m shell 2.0.7 some.js

with flags:

$ m s 2.0.7 --port 29000 --eval 1+1

When installing or changing the active version we might want to run custom scripts:

$ m pre install /path/to/my/script
$ m post install /path/to/script
$ m pre change /path/to/my/script
$ m post change /path/to/script

Multiple scripts may be added for any event. To add two pre change scripts:

$ m pre change /path/to/script1
$ m pre change /path/to/script2

Scripts are executed in the order they were added.

List all pre change hooks:

$ m pre change

/path/to/script1
/path/to/script2

List all post install hooks:

$ m post install

/path/to/scriptA
/path/to/scriptB
/path/to/scriptC

To remove a post install hook:

$ m post install rm /path/to/scriptB

Remove all post install hooks:

$ m post install rm

Usage

Output from m --help:

Usage: m [options] [COMMAND] [config]

Commands:

  m                            Output versions installed
  m latest [config ...]        Install or activate the latest mongodb release
  m stable [config ...]        Install or activate the latest stable mongodb release
  m <version> [config ...]     Install and/or use mongodb <version>
  m custom <version> <tarball> [config ...]  Install custom mongodb <tarball> with [args ...]
  m use <version> [args ...]   Execute mongodb <version> with [args ...]
  m shell <version> [args ...] Open a mongo shell <version> with [args ...]
  m bin <version>              Output bin path for <version>
  m rm <version ...>           Remove the given version(s)
  m --latest                   Output the latest mongodb version available
  m --stable                   Output the latest stable mongodb version available
  m ls                         Output the versions of mongodb available
  m src <version>              Output the url for source used for the given <version>
  m pre <event> [script]       Declare one or list scripts to execute before <event> (scripts must use absolute paths)
  m post <event> [script]      Declare one or list scripts to execute after <event> (scripts must use absolute paths)
  m pre <event> rm [script]    Remove pre <event> script
  m post <event> rm [script]   Remove post <event> script

Events:

  change   Occurs when switching mongodb versions
  install  Occurs when installing a previously uninstalled mongodb version

Options:

  -V, --version   Output current version of m
  -h, --help      Display help information

Aliases:

  which   bin
  use     as
  list    ls
  custom  c
  shell   s

Details

m by default installs mongodb to /usr/local/m/versions, from which it can see what you have currently installed, and activate previously installed versions of mongodb when m <version> is invoked again.

Activated mongodb versions are then installed to the prefix /usr/local, which may be altered via the M_PREFIX environment variable.

To alter where m operates simply export M_PREFIX to whatever you prefer.

License

MIT

Inspiration

Yes tj, this is nearly identical to n. Huge thanks!

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