From 035ce56a3353b00d34dbbb338580ff25fb7ef767 Mon Sep 17 00:00:00 2001 From: Glenn Washburn Date: Wed, 5 Jan 2022 23:57:25 +0100 Subject: bootstrap: When a commit is specified, do a shallow fetch if possible. Rationale and explanation: . * bootstrap: When a commit hash is specified, ask for this specific commit on fetch, and fallback to fetching the entire repository if fetching by commit hash fails. --- build-aux/bootstrap | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'build-aux/bootstrap') diff --git a/build-aux/bootstrap b/build-aux/bootstrap index 96588618b7..9535aecce2 100755 --- a/build-aux/bootstrap +++ b/build-aux/bootstrap @@ -763,9 +763,25 @@ if $use_gnulib; then shallow= if test -z "$GNULIB_REVISION"; then git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2' + git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \ + || cleanup_gnulib + else + git fetch -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2' + mkdir -p "$gnulib_path" + # Only want a shallow checkout of $GNULIB_REVISION, but git does not + # support cloning by commit hash. So attempt a shallow fetch by commit + # hash to minimize the amount of data downloaded and changes needed to + # be processed, which can drastically reduce download and processing + # time for checkout. If the fetch by commit fails, a shallow fetch can + # not be performed because we do not know what the depth of the commit + # is without fetching all commits. So fallback to fetching all commits. + git -C "$gnulib_path" init + git -C "$gnulib_path" remote add origin ${GNULIB_URL:-$default_gnulib_url} + git -C "$gnulib_path" fetch $shallow origin "$GNULIB_REVISION" \ + || git -C "$gnulib_path" fetch origin \ + || cleanup_gnulib + git -C "$gnulib_path" reset --hard FETCH_HEAD fi - git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \ - || cleanup_gnulib trap - 1 2 13 15 fi -- cgit v1.2.1