123 lines
4.1 KiB
Plaintext
123 lines
4.1 KiB
Plaintext
sdn
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===
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:compact-option:
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'sdn' is a simple directory navigator that you can invoke while editing shell
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commands. It enables you to:
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* take a quick peek at directory contents without running `ls`
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* browse the filesystem without all the mess that Midnight Commander does:
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there's no need to create a subshell in a new pty. The current command line
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can be simply forwarded if it is to be edited. What's more, it will always
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be obvious whether the navigator is running.
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The only supported platform is Linux. I wanted to try a different, simpler
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approach here, and the end result is very friendly to tinkering.
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image::sdn.png[align="center"]
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Packages
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--------
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Regular releases are sporadic. git master should be stable enough.
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You can get a package with the latest development version using Arch Linux's
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https://aur.archlinux.org/packages/sdn-git[AUR],
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or as a https://git.janouch.name/p/nixexprs[Nix derivation].
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Building
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--------
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Build dependencies: CMake and/or make, a C++14 compiler, pkg-config +
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Runtime dependencies: ncursesw, libacl
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// Working around libasciidoc's missing support for escaping it like \++
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Unfortunately most LLVM libc{plus}{plus} versions have a bug that crashes 'sdn'
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on start. Use GNU libstdc{plus}{plus} if you're affected.
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$ git clone https://git.janouch.name/p/sdn.git
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$ mkdir sdn/build
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$ cd sdn/build
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$ cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug
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$ make
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To install the application, you can do either the usual:
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# make install
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Or you can try telling CMake to make a package for you. For Debian it is:
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$ cpack -G DEB
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# dpkg -i sdn-*.deb
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There is also a Makefile you can use to quickly build a binary to be copied
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into the PATH of any machine you want to have 'sdn' on.
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Configuration
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-------------
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For a slightly more technical explanation please refer to manual pages.
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Integration
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~~~~~~~~~~~
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The package contains an installation script called 'sdn-install' which will bind
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'sdn' to Alt-o in your shell's initialisation file. The supported shells are:
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- *zsh*: works well
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- *bash*: minor issue: exiting the navigator confirms an empty prompt
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- *fish*: works well
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- *elvish*: version 0.14.1 and above, an unstable API is used, works well
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+
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elvish is absolutely perverse. And so is integrating 'sdn' into it because it
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already includes a custom file manager, bound to Ctrl-N (though I find the
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ranger-like interface confusing and resource-demanding).
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Colours
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~~~~~~~
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Here is an example of a '~/.config/sdn/look' file; the format is similar to
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that of git, only named colours aren't supported:
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....
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cursor 231 202
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bar 16 255 ul
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cwd bold
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input
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cmdline 145
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....
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Filename colours are taken from the `LS_COLORS` environment variable.
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Run `dircolors` to get some defaults.
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Bindings
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~~~~~~~~
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To obtain more vifm-like controls, you may write the following to your
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'~/.config/sdn/bindings' file:
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....
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normal h parent
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normal l choose
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....
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Helper programs
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~~~~~~~~~~~~~~~
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The F3 and F4 keys are normally bound to actions 'view' and 'edit', similarly to
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Norton Commander and other orthodox file managers. The helper programs used
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here may be changed by setting the PAGER and VISUAL (or EDITOR) environment
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variables.
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While it is mostly possible to get 'mcview' working using an invocation like
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`PAGER='mcview -u' sdn`, beware that this helper cannot read files from its
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standard input, nor does it enable overstrike processing by default (F9, could
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be hacked around in 'mc.ext' by turning on the `nroff` switch for a custom file
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extension, just without actually invoking 'nroff'), and thus it can't show the
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program help. 'sdn' is currently optimised for 'less' as the pager.
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Contributing and Support
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------------------------
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Use https://git.janouch.name/p/sdn to report any bugs, request features,
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or submit pull requests. `git send-email` is tolerated. If you want to discuss
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the project, feel free to join me at ircs://irc.janouch.name, channel #dev.
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Bitcoin donations are accepted at: 12r5uEWEgcHC46xd64tt3hHt9EUvYYDHe9
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License
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-------
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This software is released under the terms of the 0BSD license, the text of which
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is included within the package along with the list of authors.
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