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#!@BINDIR@/bash
#
# The example hook script to store the metadata information of version
# controlled files (with each commit) using the `metastore' program.
#
# This script is taken from the `examples/hooks/pre-commit' file of the
# `metastore' package (installed within the pipeline, with an MIT
# license). We have just changed the name of the `MSFILE' and also set
# special characters for the installation location of meta-store so our own
# installation is found by Git.
#
# WARNING:
#
# If the commit is aborted (e.g. by not entering any synopsis),
# then updated metastore file (.metadata by default) is not reverted,
# so its new version remains in the index.
# To undo any changes in metastore file written since HEAD commit,
# you may want to reset and checkout HEAD version of the file:
#
# git reset HEAD -- .metadata
# git checkout HEAD -- .metadata
# File containig the metadata.
MSFILE=".file-metadata"
# Function to help in reporting a crash.
exit_on_fail() {
"$@"
if [ $? -ne 0 ]; then
echo "Failed to execute: $@" >&2
exit 1
fi
}
# Run metastore.
exit_on_fail \
@BINDIR@/metastore -O @USER@ -G @GROUP@ -s -f "$MSFILE"
# If it's first metastore commit, store again to include $MSFILE in $MSFILE.
if ! git-ls-tree --name-only HEAD 2>/dev/null | grep -Fqx "$MSFILE"; then
exit_on_fail \
@BINDIR@/metastore -O @USER@ -G @GROUP@ -s -f "$MSFILE"
fi
# Check if the metadata file exists.
if [ ! -e "$MSFILE" ]; then
echo "\"$MSFILE\" missing" >&2
exit 1
fi
# Add the metadata file to the Git repository.
exit_on_fail \
git-add "$MSFILE"
# Return with a success code (0).
exit 0
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