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tools: add fetchGarlicApp helper

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Allows easy migration of the git server for all the apps and
reduces the boiler plate in the derivations.
This commit is contained in:
Rodrigo Arias 2021-04-01 17:45:37 +02:00
parent 375a79d27a
commit dbdcfea019
1 changed files with 46 additions and 2 deletions
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48
garlic/tools.nix
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@ -87,9 +87,53 @@ let
# Returns the given gitCommit if not null, or the one stored in the
# gitTable for the branch gitBranch.
findCommit = {gitCommit ? null, gitTable, gitBranch}:
if (gitCommit != null) then gitCommit else gitTable."${gitBranch}";
findCommit = {gitCommit ? null, gitTable ? null, gitBranch}:
assert (gitCommit == null) -> (gitTable != null);
assert (gitTable == null) -> (gitCommit != null);
if (gitCommit != null) then gitCommit
else
assert (assertMsg (gitTable ? "${gitBranch}")
''
The git branch "${gitBranch}" was not found in the gitTable.
Is the gitTable outdated?
'');
gitTable."${gitBranch}";
# Custom wrapper around fetchGit to be able to quickly specify apps
# and change the repository source for all at once. Returns an
# attributte set with the `src` as well as the selected gitCommit,
# gitBranch and gitURL.
fetchGarlicApp = {
gitBranch,
appName ? null,
gitURL ? null,
gitCommit ? null,
gitTable ? null
}:
assert (appName == null) -> (gitURL != null);
assert (gitURL == null) -> (appName != null);
let
_gitURL = if (gitURL != null) then gitURL
else "ssh://git@bscpm03.bsc.es/garlic/apps/${appName}.git";
_gitCommit = findCommit {
inherit gitCommit gitTable gitBranch;
};
_gitBranch = gitBranch;
in
{
src = builtins.fetchGit {
url = _gitURL;
ref = _gitBranch;
rev = _gitCommit;
};
gitBranch = _gitBranch;
gitCommit = _gitCommit;
# The gitURL is not stored in the derivation, as we dont really
# care of where the source comes from, as long as is the same
# commit.
gitURL = _gitURL;
};
};
in
gen