2d2de743d0
- Add packages installed in a sub-directory of site-lisp, such as mu4e, to EMACSLOADPATH. - Add ELPA packages to EMACSLOADPATH. - Add each package only once to EMACSLOADPATH. Before, each package would typically be added twice for each transitive dependency leading to a huge variable for a package having many dependencies. Fixed #78680
25 lines
976 B
Bash
25 lines
976 B
Bash
addEmacsVars () {
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for lispDir in \
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"$1/share/emacs/site-lisp" \
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"$1/share/emacs/site-lisp/"* \
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"$1/share/emacs/site-lisp/elpa/"*; do
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# Add the path to the Emacs load path if it is a directory
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# containing .el files and it has not already been added to the
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# load path.
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if [[ -d $lispDir && "$(echo "$lispDir"/*.el)" && ${EMACSLOADPATH-} != *"$lispDir":* ]] ; then
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# It turns out, that the trailing : is actually required
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# see https://www.gnu.org/software/emacs/manual/html_node/elisp/Library-Search.html
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export EMACSLOADPATH="$lispDir:${EMACSLOADPATH-}"
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fi
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done
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}
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if [[ ! -v emacsHookDone ]]; then
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emacsHookDone=1
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# If this is for a wrapper derivation, emacs and the dependencies are all
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# run-time dependencies. If this is for precompiling packages into bytecode,
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# emacs is a compile-time dependency of the package.
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addEnvHooks "$hostOffset" addEmacsVars
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addEnvHooks "$targetOffset" addEmacsVars
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fi
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