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Miscellaneous

snapshot-neuro.debian.net

The snapshot archive is a wayback machine that allows access to old packages based on dates and version numbers. It consists of all past and current packages the NeuroDebian archive provides. You will likely need also snapshots of the packages from the official Debian archive snapshots.

The ability to install packages and view source code from any given date can be very helpful to developers and users. It provides a valuable resource for tracking down when regressions were introduced, or for providing a specific environment that a particular application or data analysis was ran in some time before. The snapshot archive is accessible like any normal apt repository, allowing it to be easily used by any Debian-based system supported by NeuroDebian (ATM Debian and Ubuntu releases).

The NeuroDebian Project wants to thank Peter Palfrader for developing the snapshotting engine, Bernhard Weitzhofer for the original webdesign for the web front-end, and Department of Psychological and Brain Sciences, Dartmouth College for originally providing hardware and network bandwidth.

Currently NeuroDebian repository snapshotting service is supported as a part of the ReproNim project to facilitate (re)creation of computational environments for data analysis in neuroimaging.

Usage

This archive contains solely snapshots of the NeuroDebian repository, which you could browse by following the link on the top left. It will lead you to a list of months for which packages was imported, and the list entries in turn will point you to all timestamps of a given month's snapshots. Snapshots of the main Debian archive (including backports, volatile, etc.) are available from the official snapshot.debian.org and should be used in conjunction with this snapshots archive.

For example, /archive/neurodebian/ shows that we have imports for the NeuroDebian archive, http://neuro.debian.net/debian/, from October 2010 until the present. Picking October of 2010, /archive/neurodebian/?year=2010;month=10, provides us with a list of many different states of the NeuroDebian archive, spaced 12 hours apart (the snapshotting frequency of neuro.debian.net at that time). Following any of these links, say /archive/neurodebian/20101014T200503Z/, shows how neuro.debian.net/debian looked on the 14th of October 2010 at around 20:05 UTC.

If you want to add a specific date's archive to your apt sources.list, add an entry like this to cover snapshots of NeuroDebian and main debian archives:

# NeuroDebian
deb     http://snapshot-neuro.debian.net/archive/neurodebian/20101014T200503Z/ lenny main
deb-src http://snapshot-neuro.debian.net/archive/neurodebian/20101014T200503Z/ lenny main
# Main Debian repository
deb     http://snapshot.debian.org/archive/debian/20101014T200503Z/ lenny main
deb-src http://snapshot.debian.org/archive/debian/20101014T200503Z/ lenny main
# Security updates
deb     http://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main
deb-src http://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main

To learn which snapshots exist, i.e. which date strings are valid, simply browse the list as mentioned above. Valid date formats are yyyymmddThhmmssZ or simply yyyymmdd. If there is no import at the exact time you specified you will get the latest available timestamp which is before the time you specified.

If you want anything related to a specific package simply enter the source package name in the form, or find it in the package index.

News

2022-09-28

Environment upgraded to bullseye and the engine upgraded to the current state of the snapshot.debian.net with Python3 etc support.

2017-10-23

Environment upgraded to jessie and the engine upgraded to the current state of the snapshot.debian.net (7848c5d)

2016-11-29

NeuroDebian snapshots web ui was deployed "persistently" for internal use by NeuroDebian/ReproNim projects.

2011-10-03

Re-instantiated snapshotting service which was inactive since 2011-08-05.

2010-10-18

Initial, not-yet-official, availability of http://snapshot-neuro.debian.net/.

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