summaryrefslogtreecommitdiff
path: root/src/Propellor/Property/Obnam.hs
AgeCommit message (Collapse)Author
2016-03-28type safe targets for propertiesJoey Hess
* Property types have been improved to indicate what systems they target. This prevents using eg, Property FreeBSD on a Debian system. Transition guide for this sweeping API change: - Change "host name & foo & bar" to "host name $ props & foo & bar" - Similarly, `propertyList` and `combineProperties` need `props` to be used to combine together properties; they no longer accept lists of properties. (If you have such a list, use `toProps`.) - And similarly, Chroot, Docker, and Systemd container need `props` to be used to combine together the properies used inside them. - The `os` property is removed. Instead use `osDebian`, `osBuntish`, or `osFreeBSD`. These tell the type checker the target OS of a host. - Change "Property NoInfo" to "Property UnixLike" - Change "Property HasInfo" to "Property (HasInfo + UnixLike)" - Change "RevertableProperty NoInfo" to "RevertableProperty UnixLike UnixLike" - Change "RevertableProperty HasInfo" to "RevertableProperty (HasInfo + UnixLike) UnixLike" - GHC needs {-# LANGUAGE TypeOperators #-} to use these fancy types. This is enabled by default for all modules in propellor.cabal. But if you are using propellor as a library, you may need to enable it manually. - If you know a property only works on a particular OS, like Debian or FreeBSD, use that instead of "UnixLike". For example: "Property Debian" - It's also possible make a property support a set of OS's, for example: "Property (Debian + FreeBSD)" - Removed `infoProperty` and `simpleProperty` constructors, instead use `property` to construct a Property. - Due to the polymorphic type returned by `property`, additional type signatures tend to be needed when using it. For example, this will fail to type check, because the type checker cannot guess what type you intend the intermediate property "go" to have: foo :: Property UnixLike foo = go `requires` bar where go = property "foo" (return NoChange) To fix, specify the type of go: go :: Property UnixLike - `ensureProperty` now needs to be passed a witness to the type of the property it's used in. change this: foo = property desc $ ... ensureProperty bar to this: foo = property' desc $ \w -> ... ensureProperty w bar - General purpose properties like cmdProperty have type "Property UnixLike". When using that to run a command only available on Debian, you can tighten the type to only the OS that your more specific property works on. For example: upgraded :: Property Debian upgraded = tightenTargets (cmdProperty "apt-get" ["upgrade"]) - Several utility functions have been renamed: getInfo to fromInfo propertyInfo to getInfo propertyDesc to getDesc propertyChildren to getChildren * The new `pickOS` property combinator can be used to combine different properties, supporting different OS's, into one Property that chooses which to use based on the Host's OS. * Re-enabled -O0 in propellor.cabal to reign in ghc's memory use handling these complex new types. * Added dependency on concurrent-output; removed embedded copy.
2016-02-19Obnam: Only let one backup job run at a time when a host has multiple ↵Joey Hess
different backup properties, to avoid concurrent jobs fighting over scarce resources (particularly memory). Other jobs block on a lock file.
2016-02-07fix warningJoey Hess
2016-02-07force-lock fails when repo doesn't exist, so don't && itJoey Hess
2016-02-06Obnam: To cause old generations to be forgotten, keepParam can be passed to ↵Joey Hess
a backup property; this causes obnam forget to be run.
2015-10-10propellor spinJoey Hess
2015-05-27Export CommandParam, boolSystem, safeSystem and shellEscape from ↵Joey Hess
Propellor.Property.Cmd, so they are available for use in constricting your own Properties when using propellor as a library. Several imports of Utility.SafeCommand now redundant.
2015-04-25Removed Obnam.latestVersion which was only needed for Debian wheezy backport.Joey Hess
2015-04-22API change: Added User and Group newtypes, and Properties that used to use ↵Joey Hess
the type UserName = String were changed to use them. Note that UserName is kept and PrivData still uses it in its sum type. This is to avoid breaking PrivData serialization.
2015-02-01propellor spinJoey Hess
2015-01-25remove toSimplePropJoey Hess
It didn't do what I thought it did with a RevertableProperty; it always returned Nothing because even if the input properties to <!> are NoInfo, it casts them to HasInfo. Even if it had worked, it lost type safety. Better to export the Property NoInfo that is used in a RevertableProperty, so it can be used directly.
2015-01-24GADT properties seem to work (untested)Joey Hess
* Property has been converted to a GADT, and will be Property NoInfo or Property HasInfo. This was done to make sure that ensureProperty is only used on properties that do not have Info. Transition guide: - Change all "Property" to "Property NoInfo" or "Property WithInfo" (The compiler can tell you if you got it wrong!) - To construct a RevertableProperty, it is useful to use the new (<!>) operator - Constructing a list of properties can be problimatic, since Property NoInto and Property WithInfo are different types and cannot appear in the same list. To deal with this, "props" has been added, and can built up a list of properties of different types, using the same (&) and (!) operators that are used to build up a host's properties.
2014-11-15Convert GpgKeyId to newtypeJoey Hess
2014-11-15add Obnam backupEncryptedJoey Hess
This after I typoed an obnam setup and accidentially had a repo that was backing up non-encrypted.
2014-10-10stable suite changesJoey Hess
* Avoid encoding the current stable suite in propellor's code, since that poses a difficult transition around the release, and can easily be wrong if an older version of propellor is used. Instead, the os property for a stable system includes the suite name to use, eg Stable "wheezy". * stdSourcesList uses the stable suite name, to avoid unwanted immediate upgrades to the next stable release.
2014-07-17propellor spinJoey Hess
2014-06-06propellor spinJoey Hess
2014-06-06propellor spinJoey Hess
2014-06-01propellor spinJoey Hess
2014-05-14moved source code to srcJoey Hess
This is to work around OSX's brain-damange regarding filename case insensitivity. Avoided moving config.hs, because it's a config file. Put in a symlink to make build work.