nix-community/nix-direnv
1
0
Fork 0
mirror of https://github.com/nix-community/nix-direnv.git synced 2025-11-08 19:46:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #48 from erikarvstedt/fix-layout-dirs

Browse source 
README: fix direnv_layout_dir setup
This commit is contained in:
Jörg Thalheim 2020-10-24 08:25:06 +02:00 • committed by GitHub
commit c6be02bdf0
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

13
README.md
View file

@ -170,7 +170,7 @@ $ direnv allow
A `.direnv` directory will be created in each `use_nix` project, which might
interact badly with backups (e.g. Dropbox) or IDEs.
Therefore it's possible to override a variable called `$direnv_layout_dir` in
Therefore it's possible to override a function called `direnv_layout_dir` in
`$HOME/.config/direnv/direnvrc` or in each project's `.envrc`.
The following example will create a unique directory name per project
@ -179,9 +179,16 @@ in `$HOME/.cache/direnv/layouts/`:
```bash
# $HOME/.config/direnv/direnvrc
: ${XDG_CACHE_HOME:=$HOME/.cache}
pwd_hash=$(echo -n $PWD | shasum | cut -d ' ' -f 1)
direnv_layout_dir=$XDG_CACHE_HOME/direnv/layouts/$pwd_hash
declare -A direnv_layout_dirs
direnv_layout_dir() {
echo "${direnv_layout_dirs[$PWD]:=$(
echo -n "$XDG_CACHE_HOME"/direnv/layouts/;
echo -n "$PWD" | shasum | cut -d ' ' -f 1
)}"
}
```
During direnv setup `direnv_layout_dir` can be called multiple times and with different values of `$PWD`
(when including other `.envrc` files). Therefore cache its results in dictionary `direnv_layout_dirs`.
## Manually re-triggering evaluation