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refactor(installer): simplify user_can_sudo check

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Marc Cornellà 2022-01-11 19:53:50 +01:00
parent a0a949de56
commit c63ba17525
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1 changed files with 6 additions and 6 deletions
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tools/install.sh
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@ -64,18 +64,18 @@ user_can_sudo() {
# • without privilege: exits with error code 1 and prints the message:
# Sorry, user <username> may not run sudo on <hostname>
#
# 2. Pass `-S` to `sudo` to tell it to get the password from stdin
# instead of from a tty, and pipe `true` to `sudo`, since it doesn't
# output anything. This will make sudo exit with error code 1 and print
# the message:
# sudo: no password was provided
# 2. Pass `-n` to `sudo` to tell it to not ask for a password. If the
# password is not required, the command will finish with exit code 0.
# If one is required, sudo will exit with error code 1 and print the
# message:
# sudo: a password is required
#
# 3. Check for the words "may not run sudo" in the output to really tell
# whether the user has privileges or not. For that we have to make sure
# to run `sudo` in the default locale (with `LANG=`) so that the message
# stays consistent regardless of the user's locale.
#
true | LANG= sudo -v -S 2>&1 | grep -q "may not run sudo"
LANG= sudo -n -v 2>&1 | grep -q "may not run sudo"
}
# The [ -t 1 ] check only works when the function is not called from