`~` is neither an absolute not a relative path, it is a shell shorthand for
some shells. Programs need to interpret it explicitly unless it starts an
unquoted word:
`echo ~` -> `/home/myself`
`echo "~"` -> `~`
`xxx=~ && echo "$xxx"` -> `/home/myself`
`xxx="~" && echo "$xxx"` -> `~`
`xxx="~" && echo $xxx` -> `~`
`xxx=--include=~ && echo $xxx` -> `--include=~`
So if you want to use a home-relative directory, you need to write something
like
`-I ~` and must not quote the `~` and cannot use `--include=`.
Unless LilyPond were to use something like _wordexp(3)_ but since LilyPond
usually is called from a shell already, that would result in having to quote
special characters _twice_. So I am not really in favor of it.
---
** [issues:#4905] Documentation - --include requires absolute paths**
**Status:** Accepted
**Created:** Fri Jun 24, 2016 06:58 PM UTC by Palmer Ralph
**Last Updated:** Tue Sep 27, 2016 08:51 AM UTC
**Owner:** nobody
Federico Bruni wrote :
Should we say explicitly in the doc that -I or --include option requires
absolute path(s)?
Paragraph to be modified is in Usage 1.2:
-I, --include=directory
Add directory to the search path for input files.
Multiple -I options may be given. The search will start in the first defined
directory, and if the file to be included is not found the search will continue
in subsequent directories.
Perhaps a warning like "~ cannot be used, use absolute path" may be also
helpful.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
$ ~/.local/bin/lilypond --include=~/Documenti/spartiti/ly Aggressive-Lady.ly
GNU LilyPond 2.19.43
Processing `Aggressive-Lady.ly'
Parsing...
Aggressive-Lady.ly:2:10: error: cannot find file: `myStyle.ly'
(search path:
`/home/fede/.local/lilypond/usr/share/lilypond/current/fonts/svg/:/home/fede/.local/lilypond/usr/share/lilypond/current/fonts/type1/:/home/fede/.local/lilypond/usr/share/lilypond/current/fonts/otf/:/home/fede/.local/lilypond/usr/share/lilypond/current/scm:/home/fede/.local/lilypond/usr/share/lilypond/current/ps:/home/fede/.local/lilypond/usr/share/lilypond/current/ly:~/Documenti/spartiti/ly:')
\include
"myStyle.ly"
Aggressive-Lady.ly:13:19: error: unknown escaped string: `\I'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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