git-case-edit-description

#!/bin/bash
#
# Assumptions:
#  - in a git repository
#  - we can access git-case-common
#  - the branch defined by GIT_CASE_HEAD exists (see git-case-common)

source $(dirname $0)/git-case-common

ID=$(cat "$GIT_CASE_ACTIVE" 2>/dev/null || true)
test -z "$ID" && die "no active case set"
shortID=$(gen_short_case_id "$ID")

# we work in the working dir
go_to_git_case_work_dir

DESC_FILE="$ID/description"
TEMP_FILE=$(mktemp -p "$GIT_CASE_WORK_DIR")
OLD=$(git show "$GIT_CASE_HEAD:$DESC_FILE")

cat <<END > "$TEMP_FILE"
${OLD}
# Edit the description for case $(gen_short_case_id $ID) above.
# Lines starting with '#' character are ignored.
# To cancel out of an edit, save an empty line.
END

vim $TEMP_FILE

NEW=$(grep -v ^# "$TEMP_FILE")

test -z "$NEW" && die "Refusing to use an empty line as description."
test -z "$NEW" && die "Refusing to use an empty line as description."

if test "$OLD" = "$NEW" ; then
        echo "No changes made." >&2
        exit 0
fi

git read-tree -i --reset "$GIT_CASE_HEAD"

add_file_to_index "$DESC_FILE" "$NEW"

commit_index_and_update_branch "description changed for case $shortID
 
was: $OLD
new: $NEW" "-p $GIT_CASE_HEAD"