75849adb88
looks like some update to the markdown parser at codeberg broke our readme. just use a simple `*` instead (escaped by `\` to be safe) Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/402
232 lines
8.1 KiB
Markdown
232 lines
8.1 KiB
Markdown
[](https://codeberg.org/nsxiv/nsxiv)
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[](https://codeberg.org/nsxiv/nsxiv)
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[](https://codeberg.org/nsxiv/nsxiv/tags)
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[](https://codeberg.org/nsxiv/nsxiv/src/branch/master/LICENSE)
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[](https://codeberg.org/nsxiv/nsxiv)
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**Neo (or New or Not) Simple (or Small or Suckless) X Image Viewer**
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--------------------------------------------------------------------
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nsxiv is a fork of the now-unmaintained [sxiv](https://github.com/muennich/sxiv)
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with the purpose of being a (mostly) drop-in replacement for sxiv, maintaining its
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interface and adding simple, sensible features. nsxiv is free software licensed
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under GPLv2 and aims to be easy to modify and customize.
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Please file a bug report if something does not work as documented or expected on
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[Codeberg] after making sure you are using the latest release. Contributions
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are welcome, see [CONTRIBUTING] to get started.
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[Codeberg]: https://codeberg.org/nsxiv/nsxiv/issues/new
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[CONTRIBUTING]: etc/CONTRIBUTING.md#contribution-guideline
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Features
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--------
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* Basic image operations like zooming, panning, rotating
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* Basic support for animated/multi-frame images
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* Thumbnail mode: grid of selectable previews of all images
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* Ability to cache thumbnails for fast re-loading
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* Automatically refreshing modified images
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* Customizable keyboard and mouse mappings via `config.h`
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* Scriptability via `key-handler`
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* Displaying image information in status bar via `image-info` & `thumb-info`
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* Customizable window title via `win-title`
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Screenshots
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-----------
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**Image mode with default colors:**
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**Thumbnail mode with custom colors:**
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Installing via package manager
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------------------------------
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<a href="https://repology.org/project/nsxiv/versions">
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<img align="right" width="192" src="https://repology.org/badge/vertical-allrepos/nsxiv.svg">
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</a>
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nsxiv is available on the following distributions/repositories. If you don't see
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your distro listed here, either contact your distro's package maintainer or
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consider packaging it yourself and adding it to the respective community repo.
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Repos not tracked by repology:
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* Fedora: Enable the copr repo via `dnf copr enable mamg22/nsxiv`.
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Dependencies
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------------
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nsxiv requires the following software to be installed:
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* Imlib2
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* X11
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The following dependencies are optional.
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* `inotify`<sup>\*</sup>: Used for auto-reloading images on change.
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Disabled via `HAVE_INOTIFY=0`.
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* `libXft`, `freetype2`, `fontconfig`: Used for the status bar.
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Disabled via `HAVE_LIBFONTS=0`.
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* `giflib`: Used for animated gif playback.
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Disabled via `HAVE_LIBGIF=0`.
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* `libexif`: Used for auto-orientation and exif thumbnails.
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Disable via `HAVE_LIBEXIF=0`.
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* `libwebp`: Used for animated webp playback.
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(***NOTE***: animated webp also requires Imlib2 v1.7.5 or above)
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Disabled via `HAVE_LIBWEBP=0`.
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Please make sure to install the corresponding development packages in case that
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you want to build nsxiv on a distribution with separate runtime and development
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packages (e.g. \*-dev on Debian).
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\* [inotify][] is a Linux-specific API for monitoring filesystem changes.
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It's not natively available on `*BSD` systems but can be enabed via installing
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and linking against [libinotify-kqueue][].
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[inotify]: https://www.man7.org/linux/man-pages/man7/inotify.7.html
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[libinotify-kqueue]: https://github.com/libinotify-kqueue/libinotify-kqueue
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Building
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--------
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nsxiv is built using the commands:
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$ make
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You can pass `HAVE_X=0` to `make` to disable an optional dependency.
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For example:
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$ make HAVE_LIBEXIF=0
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will disable `libexif` support. Alternatively they can be disabled via editing
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`config.mk`. `OPT_DEP_DEFAULT=0` can be used to disable all optional
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dependencies.
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Installing nsxiv:
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# make install
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Installing desktop entry:
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# make install-desktop
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Installing icons:
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# make install-icon
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Installing all of the above:
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# make install-all
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Please note, that these requires root privileges.
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By default, nsxiv is installed using the prefix `/usr/local`, so the full path
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of the executable will be `/usr/local/bin/nsxiv`, the `.desktop` entry will be
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`/usr/local/share/applications/nsxiv.desktop` and the icon path will be
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`/usr/local/share/icons/hicolor/{size}/apps/nsxiv.png`.
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You can install nsxiv into a directory of your choice by changing this command to:
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$ make PREFIX="/your/dir" install
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Example scripts are installed using `EGPREFIX` which defaults to
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`/usr/local/share/doc/nsxiv/examples`. You can change `EGPREFIX` the same way
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you can change `PREFIX` shown above.
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The build-time specific settings of nsxiv can be found in the file *config.h*.
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Please check and change them, so that they fit your needs.
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If the file *config.h* does not already exist, then you have to create it with
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the following command:
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$ make config.h
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Usage
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-----
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Refer to the man-page for the documentation:
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$ man nsxiv
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You may also view the man-page [online](https://nsxiv.codeberg.page/man/).
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However, note that the online man-page might not accurately represent your local
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copy.
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F.A.Q.
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------
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* Can I open remote urls with nsxiv? <br>
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Yes, see [nsxiv-url](https://codeberg.org/nsxiv/nsxiv-extra/src/branch/master/scripts/nsxiv-url)
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* Can I open all the images in a directory? <br>
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Yes, see [nsxiv-rifle](https://codeberg.org/nsxiv/nsxiv-extra/src/branch/master/scripts/nsxiv-rifle)
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* Can I set default arguments for nsxiv? <br>
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Yes, see [nsxiv-env](https://codeberg.org/nsxiv/nsxiv-extra/src/branch/master/scripts/nsxiv-env)
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* Can I pipe images into nsxiv? <br>
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Yes, see [nsxiv-pipe](https://codeberg.org/nsxiv/nsxiv-extra/src/branch/master/scripts/nsxiv-pipe)
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You may also wish to see the [known issues](https://codeberg.org/nsxiv/nsxiv/issues/242).
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Customization
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-------------
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The main method of customizing nsxiv is by setting values for the variables in *config.h*,
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or by using Xresources as explained in the manual. If these options are not sufficient,
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you may implement your own features by following
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[this guide](https://codeberg.org/nsxiv/nsxiv-extra/src/branch/master/CUSTOMIZATION.md).
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Due to our limited [project scope](etc/CONTRIBUTING.md#project-scope), certain features or
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customization cannot be merged into nsxiv mainline. Following the spirit of suckless
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software, we host the [nsxiv-extra](https://codeberg.org/nsxiv/nsxiv-extra) repo where users
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are free to submit whatever patches or scripts they wish.
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If you think your custom features can be beneficial for the general user base and is within
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our project scope, please submit it as a pull request on this repository, then we *may*
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merge it to mainline.
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Description on how to use or submit patches can be found on
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nsxiv-extra's [README](https://codeberg.org/nsxiv/nsxiv-extra).
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Download
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--------
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You can [browse](https://codeberg.org/nsxiv/nsxiv) the source code repository
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on CodeBerg or get a copy using git with the following command:
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$ git clone https://codeberg.org/nsxiv/nsxiv.git
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You can view the changelog [here](etc/CHANGELOG.md)
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Similar projects
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----------------
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If nsxiv isn't able to fit your needs, check out the image viewer section of
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**[suckless rocks](https://suckless.org/rocks)** to find other minimal image
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viewers to try out.
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Below are a couple other lesser known projects not listed in suckless rocks.
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* [MAGE](https://codeberg.org/explosion-mental/mage):
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A smaller/more-suckless version of sxiv.
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* [div](https://codeberg.org/TAAPArthur/div):
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Minimal and extensive, aimed at C devs willing to build their own features.
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* [mpv-image-viewer](https://github.com/occivink/mpv-image-viewer):
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Lua script to turn mpv into an image viewer. Supports thumbnails via
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[mpv-gallery-view](https://github.com/occivink/mpv-gallery-view).
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