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image-tag: Rework the -WIP logic #119

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image-tag: Rework the -WIP logic #119

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11 changes: 10 additions & 1 deletion image-tag
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,15 @@ set -o errexit
set -o nounset
set -o pipefail

WORKING_SUFFIX=$(if git status --porcelain | grep -qE '^(?:[^?][^ ]|[^ ][^?])\s'; then echo "-WIP"; else echo ""; fi)
# Figure out if we have local changes. We don't look at files not ignored by
# .gitignore for fear of false positives.
# git diff returns 1 (false) when there's a diff, 0 (true) otherwise.
HAS_STAGED_CHANGES=$(if git diff --cached --exit-code >/dev/null; then echo no; else echo yes; fi)
HAS_UNSTAGED_CHANGES=$(if git diff --exit-code >/dev/null; then echo no; else echo yes; fi)
WORKING_SUFFIX=
if [ "$HAS_STAGED_CHANGES" = "yes" ] || [ "$HAS_UNSTAGED_CHANGES" = "yes" ]; then
WORKING_SUFFIX="-WIP"
fi

BRANCH_PREFIX=$(git rev-parse --abbrev-ref HEAD)
echo "${BRANCH_PREFIX//\//-}-$(git rev-parse --short HEAD)$WORKING_SUFFIX"