dockerfile: git version check fails in ci #2206
Description
Something wrong with version detection in Dockerfile. Error is ignored atm.
#14 [version 1/1] RUN --mount=target=. PKG=github.com/moby/buildkit/frontend/dockerfile/cmd/dockerfile-frontend VERSION=$(./frontend/dockerfile/cmd/dockerfile-frontend/hack/detect "$CHANNEL") REVISION=$(git rev-parse HEAD)$(if ! git diff --no-ext-diff --quiet --exit-code; then echo .m; fi); echo "-X main.Version=${VERSION} -X main.Revision=${REVISION} -X main.Package=${PKG}" | tee /tmp/.ldflags; echo -n "${VERSION}" | tee /tmp/.version;
#14 sha256:4351bbde3860bdb9ce4a2c4a2288baca78bff9f373c3e076085f6ebf451387e7
#14 0.069 env: can't execute 'bash': No such file or directory
#14 0.071 /bin/sh: git: not found
#14 0.071 /bin/sh: git: not found
#14 0.074 -X main.Version= -X main.Revision=.m -X main.Package=github.com/moby/buildkit/frontend/dockerfile/cmd/dockerfile-frontend
#14 DONE 0.1s
https://github.com/moby/buildkit/runs/2930628022?check_suite_focus=true#step:7:787