mirror of
https://github.com/notwa/rc
synced 2024-11-05 07:29:04 -08:00
67 lines
2 KiB
Bash
Executable file
67 lines
2 KiB
Bash
Executable file
#!/usr/bin/env sh
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# compat: +ash +bash +dash -hush -ksh +mksh +oksh +osh +posh +yash +zsh
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e() { ### @-
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### wrap around `$EDITOR` to run it as root if necessary.
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### this still needs some work to detect root-owned directories.
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###
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### ```
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### $ e /etc/sudoers
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### [sudo] password for notwa:
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### ```
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###
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### **NOTE:** there also exists an e(1) program provided by
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### the *e-wrapper* package that i don't use.
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[ -z "$ZSH_OPTIONS" ] || setopt local_options sh_word_split
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local d= f= temp= running= editor= needroot=0
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editor="${EDITOR%% *}"
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(running pid cmd | while read -r pid cmd; do
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if [ "$cmd" = "$editor" ]; then
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printf "%s (%s)\n" "$editor is already running" "$pid" >&2
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confirm
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exit
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fi
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done) || return
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for f; do
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temp="$(readlink -f "$f")" && f="$temp"
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[ -z "$MSYSTEM" ] || f="$(cygpath -u "$f")" || continue
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# easy: file exists, we have write permissions
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[ -w "$f" ] && continue
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# easy: file exists, but no write permissions
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[ -e "$f" ] && { needroot=1; break; }
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# hard: file may be in a directory that we can't inspect
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d="$f"
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while [ "${d%/*}" != "$d" ]; do
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d="${d%/*}"
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[ -w "$d/" ] && break
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[ -e "$d/" ] && { needroot=1; break; }
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done
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[ $needroot = 1 ] && break
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# easy: file just doesn't exist
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done
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if [ $needroot = 1 ] && [ -n "$MSYSTEM" ]; then
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# this pretty much never happens, because permissions are so busted, but...
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printf "NOTE: you need root permissions, but this is Windows." >&2
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printf " this probably isn't going to work." >&2
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pause
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$EDITOR "$@"
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elif [ $needroot = 0 ]; then
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$EDITOR "$@"
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else
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sudo -e "$@"
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fi
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}
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[ -n "${preload+-}" ] || . ~/sh/preload || exit 2
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eval ${preload:-preload} running confirm pause
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[ -n "${preload+-}" ] || e "$@"
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