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8b5ff7765a
f9aa081Correctly fail when spelling mistakes are found.f8950edMerge pull request #19 from weaveworks/18-misspellb377e46Add misspell to the lint script.f26a5b2Merge pull request #20 from weaveworks/socks-updatef904203Update socks proxy for upstream changes.495e875Add reciept to spellchecker git-subtree-dir: tools git-subtree-split:f9aa081666
65 lines
1.5 KiB
Bash
Executable File
65 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# Rebuild a cached docker image if the input files have changed.
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# Usage: ./rebuild-image <image name> <image dir> <image files...>
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set -eux
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IMAGENAME=$1
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SAVEDNAME=$(echo $IMAGENAME | sed "s/[\/\-]/\./g")
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IMAGEDIR=$2
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shift 2
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INPUTFILES=$@
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CACHEDIR=$HOME/docker/
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# Rebuild the image
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rebuild() {
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mkdir -p $CACHEDIR
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rm $CACHEDIR/$SAVEDNAME* || true
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docker build -t $IMAGENAME $IMAGEDIR
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docker save $IMAGENAME:latest | gzip - > $CACHEDIR/$SAVEDNAME-$CIRCLE_SHA1.gz
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}
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# Get the revision the cached image was build at
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cached_image_rev() {
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find $CACHEDIR -name "$SAVEDNAME-*" -type f | sed -n 's/^[^\-]*\-\([a-z0-9]*\).gz$/\1/p'
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}
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# Have there been any revision between $1 and $2
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has_changes() {
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local rev1=$1
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local rev2=$2
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local changes=$(git diff --oneline $rev1..$rev2 -- $INPUTFILES | wc -l)
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[ "$changes" -gt 0 ]
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}
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commit_timestamp() {
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local rev=$1
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git show -s --format=%ct $rev
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}
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cached_revision=$(cached_image_rev)
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if [ -z "$cached_revision" ]; then
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echo ">>> No cached image found; rebuilding"
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rebuild
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exit 0
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fi
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echo ">>> Found cached image rev $cached_revision"
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if has_changes $cached_revision $CIRCLE_SHA1 ; then
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echo ">>> Found changes, rebuilding"
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rebuild
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exit 0
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fi
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IMAGE_TIMEOUT="$(( 3 * 24 * 60 * 60 ))"
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if [ "$(commit_timestamp $cached_revision)" -lt "${IMAGE_TIMEOUT}" ]; then
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echo ">>> Image is more the 24hrs old; rebuilding"
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rebuild
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exit 0
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fi
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# we didn't rebuild; import cached version
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echo ">>> No changes found, importing cached image"
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zcat $CACHEDIR/$SAVEDNAME-$cached_revision.gz | docker load
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