Initial commit. Add imup zsh tool.

.gitignore

@@ -0,0 +1,2 @@
+/.idea/
+*.webp

README.md

@@ -0,0 +1,82 @@
+A simple image uploader over SSH for static image hosting.
+
+Normalize, strip, and upload images via scp.
+
+Usage: `imup [ -h | --help ] [SRC ...]`
+
+SRC may be a path or url to an image file, or a special value.
+
+* '-' read from stdin.
+* '+' read from the system clipboard.
+
+If no SRC is provided, read from the system clipboard.
+
+## Sample Usage
+
+- From clipboard
+  ```zsh
+  $ imup
+  https://i.allemangd.dev/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.webp  (<clipboard>)
+  ```
+
+- From file or URL
+  ```zsh
+  $ imup image.png ./image.jpeg 'https://example.com/image.webp'
+  https://i.allemangd.dev/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.webp  (image.png)
+  https://i.allemangd.dev/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.webp  (./image.jpeg)
+  https://i.allemangd.dev/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.webp  (https://example.com/image.webp)
+  ```
+
+- From stdin
+  ```zsh
+  $ convert image.png -resize 50% - | imup -
+  https://i.allemangd.dev/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.webp  (<stdin>)
+  ```
+
+## Installation and setup.
+
+This assumes you already have some hosted static files and ssh configured with write permissions to that directory. Images are copied to the host via `scp`. Thus authentication is deferred to other systems like VPN and SSH, and hosting is deferred to static web servers like nginx. This tool is only a convenience to normalize/strip image data and upload the files.
+
+The client depends on `imagemagick`, `scp`, and `xclip`. The host only needs to serve the static files.
+
+```zsh
+apt install imagemagick ssh xclip
+```
+
+Copy `imup` to your `~/.zfunc` or somewhere eles on your zsh `fpath`. Add the configuration to your `~/.zshrc`:
+
+```
+autoload -Uz imup
+export IMUP_SCP_DIR="..."  # The target location.
+export IMUP_URL="..."      # The base url to access images.
+```
+
+For example, on my host `allemangd.dev` I have the following nginx static server:
+
+```
+# nginx config
+server {
+    listen 80;
+    
+    server_name i.allemangd.dev;
+    
+    location / {
+        root /var/www/i.allemangd.dev/;
+        autoindex on;
+    }
+}
+```
+
+I've granted write permissions to `/var/www/i.allemangd.dev` to my ssh user, and configured an ssh host for that user.
+
+```
+# ssh config
+Host imup-host
+    HostName ...  # only accessible via VPN
+    User ...
+    IdentifyFile ...
+```
+
+Then I set `IMUP_SCP_DIR="imup-host:/var/www/i.allemangd.dev` and `IMUP_URL=https://i.allemangd.dev`
+
+The development environment in `mise.toml` uses the local directory `./images/` for both of these to avoid hosting requirements while testing.

imup

@@ -0,0 +1,55 @@
+#!/usr/bin/env zsh
+
+functipn imup() {
+  for arg in ${@}; do
+    case "${arg}" in
+      -h|--help)
+        cat << EOF
+Normalize, strip, and upload images via scp.
+
+Usage: imup [ -h | --help ] [SRC ...]
+
+SRC may be a path or url to an image file, or a special value.
+
+'-' read from stdin.
+'+' read from the system clipboard.
+
+If no SRC is provided, read from the system clipboard.
+EOF
+        return
+        ;;
+    esac
+  done
+
+  local root="$(mktemp -d)"
+  trap "rm -r '$root'" EXIT
+
+  local -a files
+
+  for src in ${@:-+}; do
+    local name="$(uuidgen).webp"
+    local file="$root/$name"
+
+    case $src in
+      +)
+        xclip -o -selection clipboard -t image/png > "$file" || continue
+        convert "$file" -strip "WEBP:$file" || continue
+        src="<clipboard>"
+        ;;
+      -)
+        convert - -strip "WEBP:$file" || continue
+        src="<stdin>"
+        ;;
+      *)
+        convert "$src" -strip "WEBP:$file" || continue
+        ;;
+    esac
+
+    files+=("$file")
+    echo "${IMUP_URL:?}/$name  ($src)"
+  done
+
+  [[ ! -z $files ]] && scp "${files[@]}" "${IMUP_SCP_DIR:?}/"
+}
+
+imup "$@"

mise.toml

@@ -0,0 +1,3 @@
+[env]
+IMUP_SCP_DIR = "{{ config_root }}/images"
+IMUP_URL = "file://{{ config_root }}/images"