add resume support to dwl

README.md

@@ -240,6 +240,7 @@ change the default without having to pass flags every time.
 | Key | Default | Description |
 |---|---|---|
 | `DWL_PREFERRED_TOOL` | _(empty)_ | Force `dwl` to use `curl`, `wget`, or `fetch` (auto-detected when unset) |
+| `DWL_DEFAULT_RESUME` | `0` | Enable `dwl` resume mode by default (`1`/`true`/`yes`/`on`); applies to file downloads |
 | `MYEXTIP_DEFAULT_URL` | `https://ip-api.com/json` | API endpoint used by `myextip` |
 
 **`[packages]`**

doc/profile.conf.example

@@ -117,6 +117,10 @@ TERM=xterm-256color
 # Unset = auto-detect (curl preferred, then wget, then fetch).
 #DWL_PREFERRED_TOOL=curl
 
+# dwl: Enable resume mode by default (supports curl/wget file downloads).
+# Values accepted: 1/0, true/false, yes/no, on/off.
+#DWL_DEFAULT_RESUME=0
+
 # myextip: API endpoint for external IP lookup.
 # Alternatives: https://ipinfo.io/json, https://ip-api.com/json/
 #MYEXTIP_DEFAULT_URL=https://ip-api.com/json/

doc/profile.conf.fatalerrors

@@ -91,6 +91,10 @@ SET_LOCALE="fr:fr_FR.UTF-8,us:en_US.UTF-8"
 # Supported values: curl, wget, fetch. Unset uses auto-detection (default).
 #DWL_PREFERRED_TOOL=curl
 
+# dwl: Enable resume mode by default (supports curl/wget file downloads).
+# Accepted values: 1/0, true/false, yes/no, on/off.
+#DWL_DEFAULT_RESUME=0
+
 # myextip: API endpoint URL used to retrieve external IP information.
 # Default: https://ip-api.com/json/
 # Compatible alternatives: https://ipinfo.io/json, https://ip-api.com/json/

doc/todo.md

@@ -64,7 +64,7 @@ version-bump.
   CPU, RAM) using pure Bash + `/proc`. **[medium]**
 
 ### net
-- [ ] **`dwl` resume support** — pass `-C -` to curl / `--continue-at -` to
+- [X] **`dwl` resume support** — pass `-C -` to curl / `--continue-at -` to
   wget for interrupted downloads; gate behind a `-r` flag. **[easy]**
 - [ ] **`myextip` multiple providers** — fall back to a secondary URL
   (configurable via `MYEXTIP_FALLBACK_URL`) when the primary times out.

profile.d/net.sh

@@ -36,20 +36,29 @@
 
 # ------------------------------------------------------------------------------
 # Download a resource using curl, wget, or fetch.
-# Usage: dwl [-t <seconds>] <url> [output_file]
+# Usage: dwl [-t <seconds>] [-r|--resume] <url> [output_file]
 dwl()
 {
     local timeout=""
+    local resume=0
+
+    case "${DWL_DEFAULT_RESUME,,}" in
+        1|true|yes|on)
+            resume=1
+            ;;
+    esac
 
     # Parse leading options before the URL.
     while [[ $# -gt 0 ]]; do
         case "$1" in
             --help|-h)
-                echo "Usage: dwl [-t <seconds>|--timeout <seconds>] <url> [output_file]"
+                echo "Usage: dwl [-t <seconds>|--timeout <seconds>] [-r|--resume] [--no-resume] <url> [output_file]"
                 echo "Downloads a resource using curl, wget, or fetch."
                 echo ""
                 echo "Arguments:"
                 echo "  -t, --timeout  Maximum time in seconds to wait for the transfer."
+                echo "  -r, --resume   Resume an interrupted download when possible (file output only)."
+                echo "      --no-resume  Disable resume mode even if enabled in config."
                 echo "  url            The full URL to download (http/https/ftp)."
                 echo "  output_file    (Optional) Path to save the file. If omitted, prints to stdout."
                 return 0
@@ -62,6 +71,14 @@ dwl()
                 timeout="$2"
                 shift 2
                 ;;
+            -r|--resume)
+                resume=1
+                shift
+                ;;
+            --no-resume)
+                resume=0
+                shift
+                ;;
             --)
                 shift
                 break
@@ -100,8 +117,12 @@ dwl()
         local args=(-sL)
         [[ -n "$timeout" ]] && args+=(--max-time "$timeout" --connect-timeout "$timeout")
         if [[ -z "$output" ]]; then
+            if (( resume == 1 )); then
+                echo "Warning: --resume requires an output file; ignoring resume mode for stdout." >&2
+            fi
             curl "${args[@]}" "$url"
         else
+            (( resume == 1 )) && args+=(-C -)
             curl "${args[@]}" -o "$output" "$url"
         fi
     }
@@ -110,6 +131,7 @@ dwl()
     {
         local args=(-q)
         [[ -n "$timeout" ]] && args+=(--timeout="$timeout")
+        (( resume == 1 )) && args+=(-c)
         if [[ -z "$output" ]]; then
             wget "${args[@]}" -O- "$url"
         else
@@ -121,6 +143,9 @@ dwl()
     {
         local args=()
         [[ -n "$timeout" ]] && args+=(-T "$timeout")
+        if (( resume == 1 )); then
+            echo "Warning: resume mode is not supported with fetch; continuing without resume." >&2
+        fi
         if [[ -z "$output" ]]; then
             fetch "${args[@]}" -o - "$url"
         else