macOS support

Author: noscript

Diff for: README.md

@@ -22,8 +22,7 @@ See `@mighty-scroll-fallback-mode`.
 ## Requirements
 
 * Mouse mode enabled (`set -g mouse on`).
-* Linux (`/proc` file system).
-* C compiler (optional, but highly recommended).
+* C compiler (Linux only. Optional, but highly recommended).
 
 ## Installation with [Tmux Plugin Manager](https://github.com/tmux-plugins/tpm) (recommended)
 
@@ -62,7 +61,7 @@ $ tmux source ~/.tmux.conf
 |`@mighty-scroll-interval`|`2`|Number|How many lines to scroll in `by-line` and `history` modes.|
 |`@mighty-scroll-select-pane`|`on`|`on`, `off`|If enabled, the pane being scrolled becomes automatically selected.|
 |`@mighty-scroll-by-line`|`'man less pager fzf'`|List|Space separated list of processes that will be scrolled  by line.|
-|`@mighty-scroll-by-page`|`'irssi vim'`|List|Space separated list of processes that will be scrolled by page.|
+|`@mighty-scroll-by-page`|`'irssi vim vi'`|List|Space separated list of processes that will be scrolled by page.|
 |`@mighty-scroll-fallback-mode`|`'history'`|`'history'`, `'by-line'`, `'by-page'`|Scroll mode when in alternate screen but the process didn't match `by-line` and `by-page` lists from above.|
 
 Scrolling modes:
@@ -82,9 +81,11 @@ set -g @mighty-scroll-select-pane off
 
 ## Performance caveats
 
-Be sure to have a C compiler (`gcc`, `clang`) available (check with `$ cc -v`),
-otherwise a Shell implementation of the process checker will be used,
-which is about 400% slower!
+On Linux, make sure to have a C compiler (`gcc`, `clang`) available (check with
+`$ cc -v`), otherwise a Shell implementation of the process checker will be
+used, which is about 400% slower!
+
+On macOS there is only a Shell implementation of the process checker at the moment.
 
 ## License
 [MIT](LICENSE.MIT)

Diff for: benchmark.sh

@@ -1,5 +1,12 @@
 set -e
 
+case "$OSTYPE" in
+  "darwin"*)
+    echo "macOS is not supported"
+    exit 1
+    ;;
+esac
+
 cd "$(dirname "$0")"
 
 TARGET_PID=$$ # PID of benchmark.sh

Diff for: mighty-scroll.tmux

@@ -3,12 +3,19 @@ CURRENT_DIR="$(cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P)"
 . "$CURRENT_DIR/scripts/helpers.sh"
 . "$CURRENT_DIR/scripts/variables.sh"
 
-if which cc >/dev/null 2>&1; then
-  make -f "$CURRENT_DIR/Makefile" -C "$CURRENT_DIR" >/dev/null 2>&1
-  set_tmux_environment "PSCHECK" "$CURRENT_DIR/pscheck"
-else
-  set_tmux_environment "PSCHECK" "$CURRENT_DIR/pscheck.sh"
-fi
+case "$OSTYPE" in
+  "darwin"*)
+    set_tmux_environment "PSCHECK" "$CURRENT_DIR/pscheck.sh"
+    ;;
+  *)
+    if which cc >/dev/null 2>&1; then
+      make -f "$CURRENT_DIR/Makefile" -C "$CURRENT_DIR" >/dev/null 2>&1
+      set_tmux_environment "PSCHECK" "$CURRENT_DIR/pscheck"
+    else
+      set_tmux_environment "PSCHECK" "$CURRENT_DIR/pscheck.sh"
+    fi
+    ;;
+esac
 
 set_tmux_environment "MIGHTY_SCROLL_INTERVAL" "$(get_tmux_option "$interval_option" "$interval_default")"
 set_tmux_environment "MIGHTY_SCROLL_BY_LINE" "$(get_tmux_option "$by_line_option" "$by_line_default")"

Diff for: pscheck.sh

@@ -1,9 +1,7 @@
-# Copyright (C) 2020 Sergey Vlasov <[email protected]>
+# Copyright (C) 2022 Sergey Vlasov <[email protected]>
 # MIT License
 
-set -e
-
-if [ $# -lt 3 ]; then
+if [ $# -lt 2 ]; then
   BASENAME=$(basename $0)
   echo "$BASENAME: too few arguments"
   echo "usage: $BASENAME PID NAME..."
@@ -13,20 +11,45 @@ fi
 PID=$1; shift
 NAMES=$@
 
+process_name() {
+  case "$OSTYPE" in
+    "darwin"*)
+      ps -p $1 -o comm=
+      ;;
+    *)
+      if [ -f /proc/$1/comm ]; then
+        cat /proc/$P/comm
+      fi
+      ;;
+  esac
+}
+
+process_children() {
+  case "$OSTYPE" in
+    "darwin"*)
+      pgrep -P $1 -a
+      ;;
+    *)
+      cat /proc/$1/task/$1/children
+      ;;
+  esac
+}
+
 walk() {
   for P in $@; do
-    if [ ! -f /proc/$P/comm ]; then # process no longer exists or something else
+    CMD_NAME="$(process_name $P)"
+    if [ -z "$CMD_NAME" ]; then # process no longer exists or something else
       continue
     fi
-    CMD_NAME=$(cat /proc/$P/comm)
+
     for N in $NAMES; do
       if [ "$N" = "$CMD_NAME" ]; then # it's a match
         echo "$N"
         exit 0
       fi
     done
 
-    CHILDREN=$(cat /proc/$P/task/$P/children)
+    CHILDREN=$(process_children $P)
     if [ ! -z "$CHILDREN" ]; then
       walk $CHILDREN
     fi

Diff for: scripts/variables.sh

@@ -8,7 +8,7 @@ by_line_option="@mighty-scroll-by-line"
 by_line_default="man less pager fzf"
 
 by_page_option="@mighty-scroll-by-page"
-by_page_default="irssi vim"
+by_page_default="irssi vim vi"
 
 fallback_mode_option="@mighty-scroll-fallback-mode"
 fallback_mode_default="history"

Diff for: test.sh

@@ -1,5 +1,12 @@
 set -e
 
+case "$OSTYPE" in
+  "darwin"*)
+    echo "macOS is not supported"
+    exit 1
+    ;;
+esac
+
 cd "$(dirname "$0")"
 
 TARGET_PID=$$ # PID of benchmark.sh