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utils/AbsolutePaths.js: do not break when running as a Windows manual install 

A Windows manual install has the same directory layout of a normal Unix one
(e.g. the nice symlink node_modules/ep_etherpad-lite -> ../src).
Only when running from the pre-built Windows package the directory layout is
different (e.g. src is physically copied into node_modules/ep_etherpad-lite).
The previous version of the code wrongly assumed that all Windows installs would
be run from the pre-built pakage.

In this version the path search is the same on all platform. If it fails, and we
are on Windows, there is a fallback for the specific case of the pre-built
package.

Fixes #3550
pull/3554/head
muxator 2019-02-11 00:02:55 +01:00 committed by muxator
parent 78c057af31
commit 631b23f7a2
1 changed files with 16 additions and 15 deletions
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31
src/node/utils/AbsolutePaths.js
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@ -61,8 +61,8 @@ var popIfEndsWith = function(stringArray, lastDesiredElements) {
* Heuristically computes the directory in which Etherpad is installed.
*
* All the relative paths have to be interpreted against this absolute base
* path. Since the Unix and Windows install have a different layout on disk,
* they are treated as two special cases.
* path. Since the Windows package install has a different layout on disk, it is
* dealt with as a special case.
*
* The path is computed only on first invocation. Subsequent invocations return
* a cached value.
@ -79,26 +79,27 @@ exports.findEtherpadRoot = function() {
const findRoot = require('find-root');
const foundRoot = findRoot(__dirname);
const splitFoundRoot = foundRoot.split(path.sep);
var directoriesToStrip;
if (process.platform === 'win32') {
/*
* On Unix platforms and on Windows manual installs, foundRoot's value will
* be:
*
* <BASE_DIR>\src
*/
var maybeEtherpadRoot = popIfEndsWith(splitFoundRoot, ['src']);
if ((maybeEtherpadRoot === false) && (process.platform === 'win32')) {
/*
* Given the structure of our Windows package, foundRoot's value
* will be the following on win32:
* If we did not find the path we are expecting, and we are running under
* Windows, we may still be running from a prebuilt package, whose directory
* structure is different:
*
* <BASE_DIR>\node_modules\ep_etherpad-lite
*/
directoriesToStrip = ['node_modules', 'ep_etherpad-lite'];
} else {
/*
* On Unix platforms, foundRoot's value will be:
*
* <BASE_DIR>\src
*/
directoriesToStrip = ['src'];
maybeEtherpadRoot = popIfEndsWith(splitFoundRoot, ['node_modules', 'ep_etherpad-lite']);
}
const maybeEtherpadRoot = popIfEndsWith(foundRoot.split(path.sep), directoriesToStrip);
if (maybeEtherpadRoot === false) {
absPathLogger.error(`Could not identity Etherpad base path in this ${process.platform} installation in "${foundRoot}"`);
process.exit(1);