**Data matters, please review**
This is a rework of #2891#2890 and #2882 . This will also fix#2724 and fix#2900 , close#2779
**Introduction**
I add a function called `unlink_persist_data($dir)`, which recursively unlink all junction/hard link in the given directory. This affects some sub-commands which have interaction with junction/hard link:
- `scoop-install`: the persisting logic has been improved as follow:
1. if there are data in the `persist` folder, also in app(`source`) folder, rename that one located in app folder (e.g. app's default setting files) with a `original` suffix, then create link from `persist` to app
2. if there are data in the `persist` folder, but no in app(`source`) folder, just create link from `persist` to app
3. if there is no data in the `persist` folder (e.g. fresh install), but there are data in app(`source`) folder (e.g. app's default setting files), we will just use that default setting files as the first-time persisting. So move that files from app folder to `persist` folder, then create link from `persist` to app
4. But what if if there is neither data in the `persist` folder (e.g. fresh install), nor in the app(`source`) folder (e.g. setting files will be created after first startup, like `Everthing.db`). We need to create empty persisting target in the `persist` folder. But by default we can't know if a persisting target is a file or a directory (e.g. `conf.d`). So we create a directory by default, and to avoid this, manifest maintainers should use `pre_install` to manually create the source file before persisting.
- `scoop-reset`: `reset` command uses the logic of `install`, but there is a problem: before re-persisting data, there have been `junction/hard link` in the app(`source`) folder. It will throw an exception of file exists #2724 . To fix this, we should unlink all old link before re-persisting, using `unlink_persist_data`.
- `scoop-uninstall`: `Remove-Item` can not remove `NTFS junction`, we need to unlink all persistting data, before uninstalling/deleting an app, but keeping persisting data.
- `scoop-cleanup`: like `uninstall`, `Remove-Item` can not remove `NTFS junction`, we need to unlink all persistting data, before deleting old versions of an app. Before PR #2882 , it use `fsutil.exe` to unlink junction, which is not friendly to restricted users (#2832 and #2881 ).
Beyond the logic improvement, there is a new feature now: it supports sub-folder data persisting, like:
```json
{
"homepage": "https://scoop.sh",
"description": "A dummy manifest for scoop tests.",
"license": "Freeware",
"version": "1.1.0",
"url": "https://get.scoop.sh",
"pre_install": [
"if (!(test-path \"$dir\\dummy.txt\")) { new-item -force \"$dir\\dummy.txt\" -itemtype file | out-null }",
"if (!(test-path \"$dir\\dummydir\")) { new-item \"$dir\\dummydir\" -itemtype directory | out-null }",
"if (!(test-path \"$dir\\subdir\")) { new-item \"$dir\\subdir\" -itemtype directory | out-null }",
"if (!(test-path \"$dir\\subdir\\subdummydir\")) { new-item \"$dir\\subdir\\subdummydir\" -itemtype directory | out-null }",
"if (!(test-path \"$dir\\subdir\\subdummy.txt\")) { new-item -force \"$dir\\subdir\\subdummy.txt\" -itemtype file | out-null }",
],
"persist": [
"dummy.txt",
"dummydir",
"subdir\\subdummydir",
"subdir\\subdummy.txt"
]
}
```
So no need to strip directories of source for target anymore.
To participate in the code review and tests, go visit https://github.com/h404bi/scoop-persist-test for test cases.
Removes extra 'ERROR' in text where the `error` method is used.
Converts some `write-host "error message"` to use the `error` method
Converts some `write-host "error message"; exit 1` to use the `abort`
method.
* makes changes to almost all main repo files to be in accordance with .editorconfig
* some files in "test\fixtures\..." were left alone to avoid breaking tests
* NOTE: whitespace changes *only* (`git diff -b` shows no changes)
abgox