From 7dce520857cb92ce66d485affca05c78677b1409 Mon Sep 17 00:00:00 2001
From: Koichi Murase <myoga.murase@gmail.com>
Date: Sat, 15 Jan 2022 15:07:37 +0900
Subject: [PATCH] oh-my-bash: support OMB_VERSION and OMB_VERSINFO

---
 lib/utils.sh     |  2 --
 oh-my-bash.sh    |  4 ++++
 tools/install.sh | 42 +++++++++++++++++++++++++++++++++++-------
 3 files changed, 39 insertions(+), 9 deletions(-)

diff --git a/lib/utils.sh b/lib/utils.sh
index fdc6b41dd..a74f5a473 100644
--- a/lib/utils.sh
+++ b/lib/utils.sh
@@ -72,8 +72,6 @@
 
 ################################################################################
 
-_omb_version=10000
-
 function _omb_util_setexit {
   return "$1"
 }
diff --git a/oh-my-bash.sh b/oh-my-bash.sh
index 4cffb3351..f00b2416c 100644
--- a/oh-my-bash.sh
+++ b/oh-my-bash.sh
@@ -21,6 +21,10 @@ if ((_omb_bash_version < 30200)); then
   return 1
 fi
 
+OMB_VERSINFO=(1 0 0 0 master noarch)
+OMB_VERSION="${OMB_VERSINFO[0]}.${OMB_VERSINFO[1]}.${OMB_VERSINFO[2]}(${OMB_VERSINFO[3]})-${OMB_VERSINFO[4]} (${OMB_VERSINFO[5]})"
+_omb_version=$((OMB_VERSINFO[0] * 10000 + OMB_VERSINFO[1] * 100 + OMB_VERSINFO[2]))
+
 # Check for updates on initial load...
 if [[ $DISABLE_AUTO_UPDATE != true ]]; then
   source "$OSH"/tools/check_for_upgrade.sh
diff --git a/tools/install.sh b/tools/install.sh
index cda7d33c5..42c212753 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -17,20 +17,30 @@ elif ((BASH_VERSINFO[0] < 4)); then
   printf "Warning: Why don't you upgrade your Bash to 4 or higher?\n" >&2
 fi
 
+_omb_install_print_version() {
+  local OMB_VERSINFO
+  OMB_VERSINFO=(1 0 0 0 master noarch)
+  printf '%s\n' 'Install script for Oh-My-Bash (https://github.com/ohmybash/oh-my-bash)'
+  printf 'oh-my-bash, version %s.%s.%s(%s)-%s (%s)\n' "${OMB_VERSINFO[@]}"
+}
+
 _omb_install_print_usage() {
   printf '%s\n' \
-    'usage: ./install.sh [--unattended | --help | --dry-run]' \
-    'usage: bash -c "$(< install.sh)" [--unattended | --help | --dry-run]'
+    'usage: ./install.sh [--unattended | --dry-run | --help | --usage | --version]' \
+    'usage: bash -c "$(< install.sh)" [--unattended | --dry-run | --help | --usage |' \
+    '           --version]'
 }
 
 _omb_install_print_help() {
+  _omb_install_print_version
   _omb_install_print_usage
   printf '%s\n' \
-    'Install script for Oh-My-Bash (https://github.com/ohmybash/oh-my-bash)' \
     '' \
     'OPTIONS' \
     '  --help            show this help' \
+    '  --usage           show usage' \
     '  --unattended      attend the meeting' \
+    '  --help            show version' \
     ''
 }
 
@@ -39,9 +49,12 @@ _omb_install_readargs() {
     local arg=$1; shift
     if [[ :$install_opts: != *:literal:* ]]; then
       case $arg in
-      --help | --unattended | --dry-run)
+      --help | --usage | --unattended | --dry-run)
         install_opts+=:${arg#--}
         continue ;;
+      --version | -v)
+        install_opts+=:version
+        continue ;;
       --)
         install_opts+=:literal
         continue ;;
@@ -96,12 +109,27 @@ _omb_install_main() {
   local install_opts=
   _omb_install_readargs "$@"
 
+  if [[ :$install_opts: == *:error:* ]]; then
+    printf '\n'
+    install_opts+=:usage
+  fi
   if [[ :$install_opts: == *:help:* ]]; then
     _omb_install_print_help
-    return 0
-  elif [[ :$install_opts: == *:error:* ]]; then
-    _omb_install_print_usage
+    install_opts+=:exit
+  else
+    if [[ :$install_opts: == *:version:* ]]; then
+      _omb_install_print_version
+      install_opts+=:exit
+    fi
+    if [[ :$install_opts: == *:usage:* ]]; then
+      _omb_install_print_usage
+      install_opts+=:exit
+    fi
+  fi
+  if [[ :$install_opts: == *:error:* ]]; then
     return 2
+  elif [[ :$install_opts: == *:exit:* ]]; then
+    return 0
   fi
 
   # Only enable exit-on-error after the non-critical colorization stuff,