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Add a function to check if the user is root.

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Add a helper function to check if the user is root. This function can be
useful for the prompts for example. Modify the prompts made root checked
to use the function instead. Add also the support of Administrator like
a root user.

Fixes: #7031
This commit is contained in:
Daniel Bengtsson 2020-06-17 17:55:23 +02:00 committed by Fabian Homborg
parent de9e8cb897
commit e2f03fa8a7
11 changed files with 106 additions and 56 deletions
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1
CHANGELOG.rst
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@ -31,6 +31,7 @@ Notable improvements and fixes
- ``fish_preexec`` and ``fish_postexec`` events are no longer triggered
for empty commands.
- The ``test`` builtin now better shows where an error occured (#6030).
- Add a helper function to know if the user is root (#7031).
Syntax changes and new commands
-------------------------------

31
doc_src/cmds/fish_is_root_user.rst Normal file
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@ -0,0 +1,31 @@
.. _cmd-fg:
fish_is_root_user - check if the current user is root
=====================================================
Synopsis
--------
::
fish_is_root_user
Description
-----------
``fish_is_root_user`` will check if the current user is root. It can be useful
for the prompt to display something different if the user is root, for example.
Example
-------
A simple example:
::
function example --description 'Just an example'
if fish_is_root_user
do_something_different
end
end

10
share/functions/fish_is_root_user.fish Normal file
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@ -0,0 +1,10 @@
# To know if the user is root. Used by several prompts to display something
# else if the user is root.
function fish_is_root_user --description "Check if the user is root"
if contains -- $USER root toor Administrator
return 0
end
return 1
end

2
share/functions/fish_prompt.fish
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@ -9,7 +9,7 @@ function fish_prompt --description 'Write out the prompt'
# Color the prompt differently when we're root
set -l color_cwd $fish_color_cwd
set -l suffix '>'
if contains -- $USER root toor
if fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
end

21
share/tools/web_config/sample_prompts/classic.fish
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@ -2,17 +2,18 @@
function fish_prompt --description "Write out the prompt"
set -l color_cwd
set -l suffix
switch "$USER"
case root toor
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
end
set suffix '#'
case '*'
if fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
set suffix '>'
end
set suffix '#'
else
set color_cwd $fish_color_cwd
set suffix '>'
end
echo -n -s "$USER" @ (prompt_hostname) ' ' (set_color $color_cwd) (prompt_pwd) (set_color normal) "$suffix "

21
share/tools/web_config/sample_prompts/classic_status.fish
View file

@ -8,17 +8,18 @@ function fish_prompt --description "Write out the prompt"
set -l color_cwd
set -l suffix
switch "$USER"
case root toor
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
end
set suffix '#'
case '*'
if fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
set suffix '>'
end
set suffix '#'
else
set color_cwd $fish_color_cwd
set suffix '>'
end
echo -n -s "$USER" @ (prompt_hostname) ' ' (set_color $color_cwd) (prompt_pwd) \

2
share/tools/web_config/sample_prompts/classic_vcs.fish
View file

@ -9,7 +9,7 @@ function fish_prompt --description 'Write out the prompt'
# Color the prompt differently when we're root
set -l color_cwd $fish_color_cwd
set -l suffix '>'
if contains -- $USER root toor
if fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
end

19
share/tools/web_config/sample_prompts/debian_chroot.fish
View file

@ -4,10 +4,12 @@
function fish_prompt --description 'Write out the prompt, prepending the Debian chroot environment if present'
# Set variable identifying the chroot you work in (used in the prompt below)
set -l debian_chroot $debian_chroot
if not set -q debian_chroot[1]
and test -r /etc/debian_chroot
set debian_chroot (cat /etc/debian_chroot)
end
if not set -q __fish_debian_chroot_prompt
and set -q debian_chroot[1]
and test -n "$debian_chroot"
@ -19,16 +21,15 @@ function fish_prompt --description 'Write out the prompt, prepending the Debian
echo -n -s (set_color yellow) "$__fish_debian_chroot_prompt" (set_color normal) ' '
end
switch "$USER"
case root toor
echo -n -s "$USER" @ (prompt_hostname) ' ' (set -q fish_color_cwd_root
and set_color $fish_color_cwd_root
or set_color $fish_color_cwd) (prompt_pwd) \
(set_color normal) '# '
if fish_is_root_user
echo -n -s "$USER" @ (prompt_hostname) ' ' (set -q fish_color_cwd_root
and set_color $fish_color_cwd_root
or set_color $fish_color_cwd) (prompt_pwd) \
(set_color normal) '# '
case '*'
echo -n -s "$USER" @ (prompt_hostname) ' ' (set_color $fish_color_cwd) (prompt_pwd) \
(set_color normal) '> '
else
echo -n -s "$USER" @ (prompt_hostname) ' ' (set_color $fish_color_cwd) (prompt_pwd) \
(set_color normal) '> '
end
end

23
share/tools/web_config/sample_prompts/informative.fish
View file

@ -6,18 +6,17 @@ function fish_prompt --description 'Informative prompt'
set -l last_pipestatus $pipestatus
set -l last_status $status
switch "$USER"
case root toor
printf '%s@%s %s%s%s# ' $USER (prompt_hostname) (set -q fish_color_cwd_root
and set_color $fish_color_cwd_root
or set_color $fish_color_cwd) \
(prompt_pwd) (set_color normal)
case '*'
set -l pipestatus_string (__fish_print_pipestatus $last_status "[" "] " "|" (set_color $fish_color_status) \
(set_color --bold $fish_color_status) $last_pipestatus)
if fish_is_root_user
printf '%s@%s %s%s%s# ' $USER (prompt_hostname) (set -q fish_color_cwd_root
and set_color $fish_color_cwd_root
or set_color $fish_color_cwd) \
(prompt_pwd) (set_color normal)
else
set -l pipestatus_string (__fish_print_pipestatus $last_status "[" "] " "|" (set_color $fish_color_status) \
(set_color --bold $fish_color_status) $last_pipestatus)
printf '[%s] %s%s@%s %s%s %s%s%s \f\r> ' (date "+%H:%M:%S") (set_color brblue) \
$USER (prompt_hostname) (set_color $fish_color_cwd) $PWD $pipestatus_string \
(set_color normal)
printf '[%s] %s%s@%s %s%s %s%s%s \f\r> ' (date "+%H:%M:%S") (set_color brblue) \
$USER (prompt_hostname) (set_color $fish_color_cwd) $PWD $pipestatus_string \
(set_color normal)
end
end

19
share/tools/web_config/sample_prompts/informative_vcs.fish
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@ -59,17 +59,16 @@ function fish_prompt --description 'Write out the prompt'
set -l color_cwd
set -l suffix
switch "$USER"
case root toor
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
end
set suffix '#'
case '*'
if fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
else
set color_cwd $fish_color_cwd
set suffix '$'
end
set suffix '#'
else
set color_cwd $fish_color_cwd
set suffix '$'
end
# PWD

13
share/tools/web_config/sample_prompts/nim.fish
View file

@ -20,8 +20,8 @@ function fish_prompt
# To:
# ┬─[nim@Hattori:~/w/dashboard]─[11:37:14]─[V:django20]─[G:master↑1|●1✚1…1]─[B:85%, 05:41:42 remaining]
# │ 2 15054 0% arrêtée sleep 100000
# │ 1 15048 0% arrêtée sleep 100000
# │ 2 15054 0% arrêtée sleep 100000
# │ 1 15048 0% arrêtée sleep 100000
# ╰─>$ echo there
set -l retc red
@ -53,19 +53,23 @@ function fish_prompt
echo -n '┬─'
set_color -o green
echo -n [
if test "$USER" = root -o "$USER" = toor
if fish_is_root_user
set_color -o red
else
set_color -o yellow
end
echo -n $USER
set_color -o white
echo -n @
if [ -z "$SSH_CLIENT" ]
set_color -o blue
else
set_color -o cyan
end
echo -n (prompt_hostname)
set_color -o white
echo -n :(prompt_pwd)
@ -79,6 +83,7 @@ function fish_prompt
# The default mode prompt would be prefixed, which ruins our alignment.
function fish_mode_prompt
end
if test "$fish_key_bindings" = fish_vi_key_bindings
or test "$fish_key_bindings" = fish_hybrid_key_bindings
set -l mode
@ -121,12 +126,14 @@ function fish_prompt
# Background jobs
set_color normal
for job in (jobs)
set_color $retc
echo -n '│ '
set_color brown
echo $job
end
set_color normal
set_color $retc
echo -n '╰─>'