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batdiff: Show error when not in git repo

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This is instead of allowing `git` to dump its own warning to the
console.
This commit is contained in:
Ethan P. 2023-09-13 11:53:49 -07:00
parent 2e1e768559
commit c29dfb136a
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1 changed files with 18 additions and 0 deletions
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18
src/batdiff.sh
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@ -110,9 +110,24 @@ fi
# Append arguments for git.
GIT_ARGS+=(-U"$OPT_CONTEXT")
# -----------------------------------------------------------------------------
# Functions:
# -----------------------------------------------------------------------------
ensure_git_directory() {
if ! "$EXECUTABLE_GIT" rev-parse --show-toplevel &>/dev/null; then
print_error "Not a git repository."
printc "\n%s\nTo view a diff between two files, use %{CYAN}%s [file] [file]%{CLEAR}." \
"To view a diff between staged files and the working directory, enter a git repository." \
"$PROGRAM"
exit 1
fi
}
# -----------------------------------------------------------------------------
# Printing:
# -----------------------------------------------------------------------------
print_bat_diff() {
local files=("$@")
@ -123,6 +138,7 @@ print_bat_diff() {
fi
# Diff staged git file.
ensure_git_directory
if "$OPT_STAGED"; then
if false && "$SUPPORTS_DELTA"; then
# bat doesn't support diffing staged changes against the HEAD.
@ -156,6 +172,7 @@ print_delta_diff() {
fi
# Diff git file.
ensure_git_directory
"$EXECUTABLE_GIT" diff "${GIT_ARGS[@]}" "${files[0]}" | "$EXECUTABLE_DELTA" "${DELTA_ARGS[@]}"
}
@ -193,6 +210,7 @@ fi
# -----------------------------------------------------------------------------
main() {
if [[ "${#FILES[@]}" -eq 0 ]] || "$OPT_ALL_CHANGES"; then
ensure_git_directory
local file
while read -r file; do
if [[ -f "$file" ]]; then