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Refactor borg-wrapper argument parsing to use argparse for improved clarity and error handling

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Chris Toph 2025-04-20 13:15:22 -04:00
parent 7866914df4
commit 55634220ae
1 changed files with 51 additions and 28 deletions
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79
home/toph/common/optional/gaming/switch.nix
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@ -7,43 +7,66 @@
}:
let
citron-emu = pkgs.callPackage (lib.custom.relativeToRoot "pkgs/common/citron-emu/package.nix") {
inherit pkgs;
};
borgtui = pkgs.callPackage (lib.custom.relativeToRoot "pkgs/common/borgtui/package.nix") {
inherit pkgs;
};
# citron-emu = pkgs.callPackage (lib.custom.relativeToRoot "pkgs/common/citron-emu/package.nix") {
# inherit pkgs;
# };
# borgtui = pkgs.callPackage (lib.custom.relativeToRoot "pkgs/common/borgtui/package.nix") {
# inherit pkgs;
# };
user = config.hostSpec.username;
borg-wrapper = pkgs.writeScript "borg-wrapper" ''
#!${lib.getExe pkgs.fish}
# Parse arguments
set -l CMD
while test (count $argv) -gt 0
switch $argv[1]
case -p --path
set BACKUP_PATH $argv[2]
set -e argv[1..2]
case -o --output
set BORG_REPO $argv[2]
set -e argv[1..2]
case -m --max
set MAX_BACKUPS $argv[2]
set -e argv[1..2]
case --
set -e argv[1]
set CMD $argv
set -e argv[1..-1]
break
case '*'
echo "Unknown option: $argv[1]"
exit 1
# Parse arguments using argparse
function parse_args
argparse 'p/path=' 'o/output=' 'm/max=' 'h/help' -- $argv
or return 1
if set -ql _flag_help
echo "Usage: borg-wrapper -p|--path PATH -o|--output REPO -m|--max MAX_BACKUPS -- COMMAND..."
echo " -p, --path PATH Path to backup"
echo " -o, --output REPO Path to store backups"
echo " -m, --max MAX Maximum number of backups to keep"
echo " -h, --help Show this help"
exit 0
end
# Check required arguments
if not set -ql _flag_path
echo "Error: --path is required" >&2
return 1
end
if not set -ql _flag_output
echo "Error: --output is required" >&2
return 1
end
# Set defaults
set -g BACKUP_PATH $_flag_path
set -g BORG_REPO $_flag_output
if set -ql _flag_max
set -g MAX_BACKUPS $_flag_max
else
set -g MAX_BACKUPS 30
end
# Everything remaining is the command to execute
set -g CMD $argv
# Verify we have a command
if test (count $CMD) -eq 0
echo "Error: No command specified after --" >&2
return 1
end
end
# Parse the arguments
parse_args $argv
or exit 1
# Initialize Borg repository
mkdir -p "$BORG_REPO"
if not ${pkgs.borgbackup}/bin/borg list "$BORG_REPO" &>/dev/null