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Update Nix/Bazel/Scripts/CI #74

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Merged
andyscott merged 3 commits into from
Sep 18, 2018
Merged

Update Nix/Bazel/Scripts/CI #74

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a5eb853
Update Bazel build
andyscott Sep 11, 2018
c9adeab
Add node to the nix derivation
andyscott Sep 18, 2018
b49197f
Add git to nix derivation
andyscott Sep 18, 2018
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4 changes: 4 additions & 0 deletions .travis.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,10 @@ stages:
jobs:
include:

- name: "Bazel"
script:
- ./scripts/ci-jobs.sh bazel

- name: "Test"
script:
- ./scripts/ci-jobs.sh test
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20 changes: 5 additions & 15 deletions default.nix
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Expand Up @@ -5,23 +5,13 @@ stdenv.mkDerivation rec {
name = "env";

src = builtins.filterSource (path: type: false) ./.;

bazel = (import (fetchFromGitHub {
owner = "andyscott";
repo = "bazel-nix";
rev = "d03cebdba5aefdccad70608ec348fdd1ca0c1ed1";
sha256 = "08znczxmm4ijlw3lfcz8xw3f1368nn56i5ka453gygslj6qfg1g3";
})) {
version = "0.14.1";
};

buildInputs = [
git sbt nodejs bazel
sbt bazel nodejs git
];

installPhase = ''
mkdir -p $out
ln -s $bazel/bin/bazel $out/bazel
'';
shellHook =
''
export IS_IN_NIX=true
'';
}

3 changes: 3 additions & 0 deletions scripts/ci-jobs.sh
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Expand Up @@ -4,6 +4,9 @@
set -euxo pipefail

case "$1" in
"bazel")
bazel build ...
;;
"test")
sbt ';+clean;test'
;;
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39 changes: 9 additions & 30 deletions tools/bazel
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@@ -1,34 +1,13 @@
#!/bin/bash

set -eo pipefail

if [ ! -z "$BAZEL_IN_NIX" ]; then
exec $BAZEL_REAL "$@"
fi

function mtime_darwin() {
stat -f "%m" $1
}
function mtime_gnu() {
stat -c "%Y" $1
}

if mtime_darwin "$BAZEL_REAL" >/dev/null 2>&1; then
mtime=mtime_darwin
if [ -z "$IS_IN_NIX" ]; then
echo ""
echo "You're running Bazel from outside of nix-shell!"
echo "This will incur a slight overhead on each bazel invocation"
echo "Consider entering a nix-shell if you'd like to avoid this overhead"
echo ""

eval nix-shell --command \"bazel $@\"
else
mtime=mtime_gnu
$BAZEL_REAL "$@"
fi

t0=$($mtime ./result) || t0=0

for file in *.nix; do
t=$($mtime $file)
if [[ $t -gt $t0 ]]; then
echo 'The Nix environment is out of date! Rebuilding now...'
nix-build
echo 'Done!'
break
fi
done

BAZEL_IN_NIX=true exec ./result/bazel "$@"