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authoredef <edef@mutable.io>2020-12-01 16:48:29 +0000
committeredef <edef@edef.eu>2020-12-01 16:58:29 +0000
commitde88771a7d26d6c7c7f0afd310eb4e217f75e159 (patch)
tree87f68c39cbf74606d2cf8369deb966359acf9a17 /pkgs/build-support/docker/nix-prefetch-docker
parent48d423ee2a22adb30f89899c82f7e12821c7455b (diff)
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nix-prefetch-docker: output informational messages to stderr
Informational messages belong on stderr, not on stdout and intermixed
with structured output for programmatic use.

Change-Id: I34d094d04460494e9ec8953db7490f4e2292d959
Diffstat (limited to 'pkgs/build-support/docker/nix-prefetch-docker')
-rwxr-xr-xpkgs/build-support/docker/nix-prefetch-docker14
1 files changed, 7 insertions, 7 deletions
diff --git a/pkgs/build-support/docker/nix-prefetch-docker b/pkgs/build-support/docker/nix-prefetch-docker
index 1b6785189c2..5798ab5984f 100755
--- a/pkgs/build-support/docker/nix-prefetch-docker
+++ b/pkgs/build-support/docker/nix-prefetch-docker
@@ -127,7 +127,7 @@ trap "rm -rf \"$tmpPath\"" EXIT
 tmpFile="$tmpPath/$(get_name $finalImageName $finalImageTag)"
 
 if test -z "$QUIET"; then
-    skopeo --insecure-policy --tmpdir=$TMPDIR --override-os ${os} --override-arch ${arch} copy "$sourceUrl" "docker-archive://$tmpFile:$finalImageName:$finalImageTag"
+    skopeo --insecure-policy --tmpdir=$TMPDIR --override-os ${os} --override-arch ${arch} copy "$sourceUrl" "docker-archive://$tmpFile:$finalImageName:$finalImageTag" >&2
 else
     skopeo --insecure-policy --tmpdir=$TMPDIR --override-os ${os} --override-arch ${arch} copy "$sourceUrl" "docker-archive://$tmpFile:$finalImageName:$finalImageTag" > /dev/null
 fi
@@ -139,12 +139,12 @@ imageHash=$(nix-hash --flat --type $hashType --base32 "$tmpFile")
 finalPath=$(nix-store --add-fixed "$hashType" "$tmpFile")
 
 if test -z "$QUIET"; then
-    echo "-> ImageName: $imageName"
-    echo "-> ImageDigest: $imageDigest"
-    echo "-> FinalImageName: $finalImageName"
-    echo "-> FinalImageTag: $finalImageTag"
-    echo "-> ImagePath: $finalPath"
-    echo "-> ImageHash: $imageHash"
+    echo "-> ImageName: $imageName" >&2
+    echo "-> ImageDigest: $imageDigest" >&2
+    echo "-> FinalImageName: $finalImageName" >&2
+    echo "-> FinalImageTag: $finalImageTag" >&2
+    echo "-> ImagePath: $finalPath" >&2
+    echo "-> ImageHash: $imageHash" >&2
 fi
 
 if [ "$format" == "nix" ]; then