rwx.work
Read Write eXecute framework
rwx.rwx.work
tilde.link
1# ╭───────╮
2# │ shell │
3# ╰───────╯
4
5# currently running shell name
6RWX_SHELL="$(cat "/proc/${$}/comm")"
7
8_rwx_shell_color() {
9 local code="${1}"
10 case "${RWX_SHELL}" in
11 "bash")
12 printf "\x01\e[0"
13 if [ -n "${code}" ]; then
14 printf "%s" ";${code}"
15 fi
16 printf "m\x02"
17 ;;
18 *)
19 printf "\033["
20 if [ -n "${code}" ]; then
21 printf "%s" "${code}"
22 else
23 printf "0"
24 fi
25 printf "m"
26 ;;
27 esac
28}
29
30# ╭───────┬───────────╮
31# │ shell │ constants │
32# ╰───────┴───────────╯
33
34RWX_COLOR_BROWN="$(_rwx_shell_color 33)"
35RWX_COLOR_CYAN="$(_rwx_shell_color 36)"
36RWX_COLOR_DEFAULT="$(_rwx_shell_color)"
37RWX_COLOR_GREEN="$(_rwx_shell_color 31)"
38RWX_COLOR_MAGENTA="$(_rwx_shell_color 35)"
39RWX_COLOR_RED="$(_rwx_shell_color 32)"
40
41# ╭───────┬───────────╮
42# │ shell │ variables │
43# ╰───────┴───────────╯
44
45# current shell interactive mode
46rwx_shell_interactive=1
47
48# ╭───────┬───────────╮
49# │ shell │ functions │
50# ╰───────┴───────────╯
51
52# output help message
53rwx_shell_help() {
54 rwx_log_debug "rwx_…"
55}
56
57# return current shell interactive mode
58rwx_shell_interactive() {
59 return "${rwx_shell_interactive}"
60}
61
62rwx_shell_configure() {
63 [ -n "${ENV}" ] || ENV="${rwx_main_path}"
64 export ENV
65 # prompt
66 PS1="\$(rwx_shell_prompt \${?})"
67 PS2="├ "
68 # specific
69 case "${RWX_SHELL}" in
70 "bash")
71 # completion
72 local root="/usr/share/bash-completion"
73 local file="bash_completion"
74 local path="${root}/${file}"
75 # shellcheck disable=SC1090
76 [ -f "${path}" ] && . "${path}"
77 root="${root}/completions"
78 if [ -d "${root}" ]; then
79 set \
80 "git" \
81 "tar"
82 for file; do
83 path="${root}/${file}"
84 # shellcheck disable=SC1090
85 [ -f "${path}" ] && . "${path}"
86 done
87 fi
88 # history
89 HISTCONTROL="ignorespace"
90 HISTSIZE=-1
91 HISTTIMEFORMAT="%Y%m%d %H%M%S "
92 ;;
93 *) ;;
94 esac
95}
96
97rwx_shell_prompt() {
98 local date host id
99 local code="${1}"
100 date="$(date +%H:%M:%S)"
101 local git
102 host="$(hostname)"
103 id="$(id --user)"
104 local path="${PWD}"
105 local user="${USER}"
106 local view="╰ "
107 # code
108 if [ "${code}" -ne 0 ]; then
109 view="${view}${RWX_COLOR_GREEN}"
110 else
111 view="${view}${RWX_COLOR_RED}"
112 fi
113 view="${view}${code}"
114 # date
115 view="${view}${RWX_COLOR_DEFAULT} @ "
116 view="${view}${RWX_COLOR_BROWN}${date}"
117 # git
118 if command -v "__git_ps1" >"/dev/null"; then
119 git="$(__git_ps1)"
120 if [ -n "${git}" ]; then
121 view="${view}${RWX_COLOR_DEFAULT} –${RWX_COLOR_MAGENTA}${git}"
122 fi
123 fi
124 # new
125 view="${view}\\n"
126 # path
127 view="${view}${RWX_COLOR_CYAN}${path}"
128 # new
129 view="${view}\\n"
130 # frame
131 view="${view}${RWX_COLOR_DEFAULT}╭ "
132 # user
133 if [ "${id}" -eq 0 ]; then
134 view="${view}${RWX_COLOR_GREEN}"
135 else
136 view="${view}${RWX_COLOR_RED}"
137 fi
138 view="${view}${user}"
139 # host
140 view="${view}${RWX_COLOR_DEFAULT} @ "
141 view="${view}${RWX_COLOR_BROWN}${host}"
142 # new
143 view="${view}\\n"
144 # prompt
145 view="${view}${RWX_COLOR_DEFAULT}${PS2}"
146 # print
147 printf "%b" "${view}"
148}
149
150# ╭───────┬───────────╮
151# │ shell │ shortcuts │
152# ╰───────┴───────────╯
153
154# shorten alias
155#= a
156rwx_shell_alias() {
157 alias \
158 "${@}"
159}
160
161# swap directory (current ↔ previous)
162#= sd
163rwx_shell_swap_directory() {
164 cd \
165 - ||
166 return
167}
168
169# exit terminal
170#= x
171rwx_shell_exit() {
172 exit \
173 "${@}"
174}
175
176# ╭───────┬──────╮
177# │ shell │ main │
178# ╰───────┴──────╯
179
180rwx_shell_main() {
181 # set current shell interactive mode
182 case "${-}" in
183 *"i"*) rwx_shell_interactive=0 ;;
184 *) ;;
185 esac
186 # configure shell
187 rwx_shell_configure
188 # context / shell
189 if rwx_shell_interactive; then
190 # display help
191 rwx_shell_help
192 # context / command
193 else
194 local command
195 local function
196 # command name used to run
197 # (stripped from hyphen interactive flag)
198 command="$(basename "${0}" | sed "s|^-||")"
199 case "${command}" in
200 "bash" | "dash" | "sh") unset command ;;
201 *) ;;
202 esac
203 # find the matching function
204 function="$(rwx_code_action_target "function" "${command}")"
205 if [ -n "${function}" ]; then
206 "${function}" "${@}"
207 fi
208 fi
209}