Introduce feature to search for processes

functions/_fzf_configure_bindings_help.fish

@@ -12,6 +12,7 @@ DESCRIPTION
         Search git status  |  Ctrl+Alt+S (S for status)    |  --git_status
         Search history     |  Ctrl+R     (R for reverse)   |  --history
         Search variables   |  Ctrl+V     (V for variable)  |  --variables
+        Search processes   |  Ctrl+O     (O for prOcess)   |  --processes
     An option with a key sequence value overrides the binding for its feature, while an option
     without a value disables the binding. A feature that is not customized retains its default
     menomonic binding specified above. Key bindings are installed for default and insert modes.

functions/_fzf_search_processes.fish

@@ -0,0 +1,21 @@
+function _fzf_search_processes --description "Search pid for all running commands"
+    set fzf_arguments --multi --ansi $fzf_processes_opts
+    set token (commandline --current-token)
+    # expand any variables or leading tilde (~) in the token
+    #set expanded_token (eval echo -- $token)
+
+    set pid_selected (
+        ps -A -opid,command | \
+        _fzf_wrapper --query $token  \
+                     --header-lines=1 \
+                     --preview='ps -o pid,user,%cpu,time,rss,command -p {1}' \
+                     $fzf_arguments | \
+        awk '{print $1}'
+    )
+
+    if test $status -eq 0
+        commandline --current-token --replace -- (string escape -- $pid_selected)
+    end
+
+    commandline --function repaint
+end

functions/fzf_configure_bindings.fish

@@ -4,7 +4,7 @@ function fzf_configure_bindings --description "Installs the default key bindings
     # no need to install bindings if not in interactive mode or running tests
     status is-interactive || test "$CI" = true; or return
 
-    set options_spec h/help 'directory=?' 'git_log=?' 'git_status=?' 'history=?' 'variables=?'
+    set options_spec h/help 'directory=?' 'git_log=?' 'git_status=?' 'history=?' 'variables=?' 'processes=?'
     argparse --max-args=0 --ignore-unknown $options_spec -- $argv 2>/dev/null
     if test $status -ne 0
         echo "Invalid option or a positional argument was provided." 1>&2
@@ -15,13 +15,14 @@ function fzf_configure_bindings --description "Installs the default key bindings
         return
     else
         # Initialize with default key sequences and then override or disable them based on flags
-        # index 1 = directory, 2 = git_log, 3 = git_status, 4 = history, 5 = variables
-        set key_sequences \e\cf \e\cl \e\cs \cr \cv # \c = control, \e = escape
+        # index 1 = directory, 2 = git_log, 3 = git_status, 4 = history, 5 = variables, 6 = processes
+        set key_sequences \e\cf \e\cl \e\cs \cr \cv \co # \c = control, \e = escape
         set --query _flag_directory && set key_sequences[1] "$_flag_directory"
         set --query _flag_git_log && set key_sequences[2] "$_flag_git_log"
         set --query _flag_git_status && set key_sequences[3] "$_flag_git_status"
         set --query _flag_history && set key_sequences[4] "$_flag_history"
         set --query _flag_variables && set key_sequences[5] "$_flag_variables"
+        set --query _flag_processes && set key_sequences[6] "$_flag_processes"
 
         # If fzf bindings already exists, uninstall it first for a clean slate
         if functions --query _fzf_uninstall_bindings
@@ -34,6 +35,7 @@ function fzf_configure_bindings --description "Installs the default key bindings
             test -n $key_sequences[3] && bind --mode $mode $key_sequences[3] _fzf_search_git_status
             test -n $key_sequences[4] && bind --mode $mode $key_sequences[4] _fzf_search_history
             test -n $key_sequences[5] && bind --mode $mode $key_sequences[5] "$_fzf_search_vars_command"
+            test -n $key_sequences[6] && bind --mode $mode $key_sequences[6] _fzf_search_processes
         end
 
         function _fzf_uninstall_bindings --inherit-variable key_sequences