nixpkgs-ml-tools

commit 241cd6325eb2748852b65c9365ce04cf58caa06c
parent 6c00bfb1ace953764711cbdb098cb793668d2dd6
Author: Matthias Beyer <mail@beyermatthias.de>
Date:   Thu,  1 Apr 2021 20:39:45 +0200

Use argbash to generate CLI framework

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Tested-by: Matthias Beyer <mail@beyermatthias.de>
Link: https://lore.kernel.org/r/20210401183949.25894-2-mail@beyermatthias.de

Diffstat:
M
notmuch-am
 | 
102
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------

1 file changed, 95 insertions(+), 7 deletions(-)
diff --git a/notmuch-am b/notmuch-am
@@ -1,12 +1,39 @@
 #!/usr/bin/env bash
 
-B4AM_ARGS=${B4AM_ARGS:-"--add-link"}
+# ###
+#
+# Generated by argbash.io
+#
+# ###
 
-usage () {
-    printf %s "\
-Usage: notmuch-am <thread-id>
+die()
+{
+    local _ret="${2:-1}"
+    test "${_PRINT_HELP:-no}" = yes && print_help >&2
+    echo "$1" >&2
+    exit "${_ret}"
+}
+
+
+begins_with_short_option()
+{
+    local first_option all_short_options='h'
+    first_option="${1:0:1}"
+    test "$all_short_options" = "${all_short_options/$first_option/}" && return 1 || return 0
+}
 
-Use b4 to apply a patchset from a thread.
+# THE DEFAULTS INITIALIZATION - POSITIONALS
+_positionals=()
+# THE DEFAULTS INITIALIZATION - OPTIONALS
+
+
+print_help()
+{
+    printf '%s\n' "Use b4 to apply a patchset from a thread."
+    printf 'Usage: %s [-h|--help] <thread-id>\n' "$0"
+    printf '\t%s\n' "<thread-id>: The notmuch thread id of the thread to apply"
+    printf '\t%s\n' "-h, --help: Prints help"
+    printf %s "\
 
 Example
 
@@ -18,8 +45,68 @@ Example
       + Reviewed-by: Xinglu Chen <public@yoctocell.xyz> (✓ DKIM/yoctocell.xyz)
       + Reviewed-by: Matthias Beyer <mail@beyermatthias.de>
 "
-exit 0
 }
+parse_commandline()
+{
+    _positionals_count=0
+    while test $# -gt 0
+    do
+        _key="$1"
+        case "$_key" in
+            -h|--help)
+                print_help
+                exit 0
+                ;;
+            -h*)
+                print_help
+                exit 0
+                ;;
+            *)
+                _last_positional="$1"
+                _positionals+=("$_last_positional")
+                _positionals_count=$((_positionals_count + 1))
+                ;;
+        esac
+        shift
+    done
+}
+
+
+handle_passed_args_count()
+{
+    local _required_args_string="'thread-id'"
+    test "${_positionals_count}" -ge 1 || _PRINT_HELP=yes die "FATAL ERROR: Not enough positional arguments - we require exactly 1 (namely: $_required_args_string), but got only ${_positionals_count}." 1
+    test "${_positionals_count}" -le 1 || _PRINT_HELP=yes die "FATAL ERROR: There were spurious positional arguments --- we expect exactly 1 (namely: $_required_args_string), but got ${_positionals_count} (the last one was: '${_last_positional}')." 1
+}
+
+
+assign_positional_args()
+{
+    local _positional_name _shift_for=$1
+    _positional_names="_arg_thread_id "
+
+    shift "$_shift_for"
+    for _positional_name in ${_positional_names}
+    do
+        test $# -gt 0 || break
+        eval "$_positional_name=\${1}" || die "Error during argument parsing, possibly an Argbash bug." 1
+        shift
+    done
+}
+
+parse_commandline "$@"
+handle_passed_args_count
+assign_positional_args 1 "${_positionals[@]}"
+
+# ###
+#
+# / Generated by argbash.io
+#
+# ###
+
+
+
+B4AM_ARGS=${B4AM_ARGS:-"--add-link"}
 
 main () {
     mbox=$(mktemp)
@@ -29,4 +116,5 @@ main () {
     rm -f "$mbox"
 }
 
-[ -n "$1" ] || usage && main "$@"
+[ -n "$1" ] || usage && main "$_arg_thread_id"
+