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#!/bin/bash
# Checks whether the branch / commit tracked by subgit for the
# specified repos are up-to-date, and whether the worktree is dirty.
usage() {
die $(cat <<-EOF
Usage: subgit check [PATH..]
Checks whether tracked subrepositories have uncommitted changes,
or if their remote, branch, or commit differ from what's recorded
in .subgitrc. Reports any discrepancies or dirty working trees.
EOF
)
}
while [ "$1" ]; do
case $1 in
-h) usage;;
--) shift; break;;
-*) die "Invalid option $1";;
*) break;;
esac
done
subgit-sub subrepo "$@" | while read -r subrepo; do
root=$(subgit-sub parent "$subrepo")
relpath=$(realpath -m --relative-to="$root" "$subrepo")
source "$root/.subgitrc"
bare="$root/.subgit/$relpath"
if [ ! -d "$bare" ]; then
warn "Subrepo $relpath uninitialized"
continue
fi
remote=$(git -C "$bare" remote get-url origin)
if [ "${subgitinfo[$relpath/remote]}" != "$remote" ]; then
echo "$relpath: new remote - '$remote'"
fi
branch=$(git -C "$bare" branch --show-current)
if [ ! -z "${subgitinfo[$relpath/branch]}" ] && [ "${subgitinfo[$relpath/branch]}" != "$branch" ]; then
echo "$relpath: new branch - '$branch'"
fi
commit=$(git -C "$bare" rev-parse --verify HEAD)
if [ "${subgitinfo[$relpath/commit]}" != "$commit" ]; then
echo "$relpath: new commit - '$commit'"
fi
dirty=$(git -C "$subrepo" diff --stat 2>/dev/null | head -n1)
if [ ! -z "$dirty" ]; then
echo "$relpath: dirty tree"
fi
done
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