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ci: optimise image-* job to skip cache upload if unchanged

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This relies on a documented hack that makes GitLab cache machinery
skip the upload if all of the cached files are missing in the tree.

This saves about a minute per pull request CI/CD run times the number of
images required for testing.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@canonical.com>
This commit is contained in:
Zygmunt Krynicki 2025-05-15 23:16:16 +02:00
parent d2d0f36244
commit 81c1b86373
1 changed files with 10 additions and 1 deletions
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11
.gitlab-ci.yml
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@ -212,7 +212,16 @@ coverity:
script: script:
# Prepare the image, for real. # Prepare the image, for real.
- printf '\e[0K%s:%s:%s[collapsed=true]\r\e[0K%s\n' section_start "$(date +%s)" prepare_image "Prepare image" - printf '\e[0K%s:%s:%s[collapsed=true]\r\e[0K%s\n' section_start "$(date +%s)" prepare_image "Prepare image"
- image-garden make "$GARDEN_SYSTEM.$ARCH.run" "$GARDEN_SYSTEM.$ARCH.qcow2" "$GARDEN_SYSTEM.seed.iso" "$GARDEN_SYSTEM.user-data" "$GARDEN_SYSTEM.meta-data" # If there's nothing to do then remove all the files that we would normally
# cache so that GitLab skips the cache upload step. This saves significant
# time required to re-compress and upload unchanged content.
- |
if image-garden make --question "$GARDEN_SYSTEM.$ARCH.run" "$GARDEN_SYSTEM.$ARCH.qcow2" "$GARDEN_SYSTEM.seed.iso" "$GARDEN_SYSTEM.user-data" "$GARDEN_SYSTEM.meta-data"; then
rm -f "$GARDEN_SYSTEM".* efi-code.*.img efi-vars.*.img
rm -rf "$GARDEN_DL_DIR"
else
image-garden make "$GARDEN_SYSTEM.$ARCH.run" "$GARDEN_SYSTEM.$ARCH.qcow2" "$GARDEN_SYSTEM.seed.iso" "$GARDEN_SYSTEM.user-data" "$GARDEN_SYSTEM.meta-data"
fi
- printf '\e[0K%s:%s:%s\r\e[0K\n' section_end "$(date +%s)" prepare_image - printf '\e[0K%s:%s:%s\r\e[0K\n' section_end "$(date +%s)" prepare_image
cache: cache:
# Cache the base image (pre-customization). # Cache the base image (pre-customization).