diff options
| -rw-r--r-- | lib/spack/docs/packaging_guide.rst | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/spack/docs/packaging_guide.rst b/lib/spack/docs/packaging_guide.rst index 3764a54e4b..9ea39c0173 100644 --- a/lib/spack/docs/packaging_guide.rst +++ b/lib/spack/docs/packaging_guide.rst @@ -699,7 +699,7 @@ Spack versions may also be arbitrary non-numeric strings, for example ``@develop``, ``@master``, ``@local``. The order on versions is defined as follows. A version string is split -into a list of components based on delimiters such as ``.``, ``-`` etc. +into a list of components based on delimiters such as ``.``, ``-`` etc. Lists are then ordered lexicographically, where components are ordered as follows: @@ -2283,9 +2283,17 @@ The following dependency types are available: One of the advantages of the ``build`` dependency type is that although the dependency needs to be installed in order for the package to be built, it can be uninstalled without concern afterwards. ``link`` and ``run`` disallow -this because uninstalling the dependency would break the package. Another -consequence of this is that ``build``-only dependencies do not affect the -hash of the package. The same is true for ``test`` dependencies. +this because uninstalling the dependency would break the package. + +``build``, ``link``, and ``run`` dependencies all affect the hash of Spack +packages (along with ``sha256`` sums of patches and archives used to build the +package, and a [canonical hash](https://github.com/spack/spack/pull/28156) of +the ``package.py`` recipes). ``test`` dependencies do not affect the package +hash, as they are only used to construct a test environment *after* building and +installing a given package installation. Older versions of Spack did not include +build dependencies in the hash, but this has been +[fixed](https://github.com/spack/spack/pull/28504) as of [Spack +``v0.18``](https://github.com/spack/spack/releases/tag/v0.18.0) If the dependency type is not specified, Spack uses a default of ``('build', 'link')``. This is the common case for compiler languages. @@ -3043,7 +3051,7 @@ the above attribute implementations: [ '/opt/spack/linux-fedora35-haswell/gcc-11.3.1/foo-1.0-ca3rczp5omy7dfzoqw4p7oc2yh3u7lt6/baz/lib' ] - + .. _abstract-and-concrete: ------------------------- |