dfmd/README.md

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# dfmd
A small utility daemon to handle "open containing folder" activities in various
software.
🦊
## Quick installation
AUR package: `dfmd-git`
If some other handler takes precedence over this one, try copying the DBus
service file into your user directory. Also make sure no other service is
running while executing `dfmd`.
Bash et al.:
```sh
mkdir -p "${XDG_DATA_HOME:-"$HOME/.local/share"}/dbus-1/services"
cp /usr/share/dbus-1/services/sh.natty.FileManager1.service "${XDG_DATA_HOME:-"$HOME/.local/share"}/dbus-1/services/org.freedesktop.FileManager1.service"
```
Fish:
```sh
# Fallback universal variable in case XDG_DATA_HOME is not set
set -U XDG_DATA_HOME ~/.local/share
mkdir -p "$XDG_DATA_HOME/dbus-1/services"
cp /usr/share/dbus-1/services/sh.natty.FileManager1.service "$XDG_DATA_HOME/dbus-1/services/org.freedesktop.FileManager1.service"
```
## Dependencies
- DBus
- xdg-open as the default handler
## Building
```sh
cargo build --release
```
## Configuration
Use the DFMD_*_PROGRAM environment variables. `%ARGS%` is substituted with a
list of input files.
### Default handler programs
```sh
DFMD_FOLDER_PROGRAM="echo %ARGS% | xargs -n1 xdg-open"
DFMD_ITEMS_PROGRAM="echo %ARGS% | xargs -d ' ' -r -n1 dirname | xargs -n1 xdg-open"
DFMD_PROPERTIES_PROGRAM="echo %ARGS% | xargs -n1 xdg-open"
```
## Autostart
Create a DBus service in
`$XDG_DATA_HOME/dbus-1/services/org.freedesktop.FileManager1.service`.
(The default directory for `XDG_DATA_HOME` is `$HOME/.local/share/`)
```
[D-BUS Service]
Name=org.freedesktop.FileManager1
Exec=path/to/dfmd
```
## Overriding defaults in D-Bus service files
Since D-Bus service files do not understand environment variables, the actions
can be overridden using `env`:
(Theoretical example where showing a file sends a desktop notification)
```
[D-BUS Service]
Name=org.freedesktop.FileManager1
Exec=env DFMD_ITEMS_PROGRAM="echo %ARGS% | xargs -d ' ' -r -n1 dirname | xargs -n1 notify-send 'File opened'" /usr/bin/dfmd
```