gitignore twiddle and comments on all_binaries_in_path

.gitconfig

@@ -29,6 +29,10 @@
 	diffcommitsfrommain = !"git log --no-merges origin/$(git mainormaster).."
 	#                                                                      ^^ also, 2 vs 3 dots: so important. https://stackoverflow.com/a/48681527
 
+	# I prefer these from my fish abbv's, but for bash we'll keep this as a fallback.
+	db = diffbranch
+	dbt = diffbranch-that
+
 	# Squash a branch to one commit against a branch with many non-main commits.
 	# This can't be an alias, but here's the hack.
 	#    # be on the new feature branch, be okay with rewriting it's history.
@@ -159,9 +163,6 @@
 [include]
 	path = ~/.gitconfig.local
 
-#[init]
-#	templatedir = ~/.git_template
-
 [filter "lfs"]
 	clean = git-lfs clean -- %f
 	smudge = git-lfs smudge -- %f

.gitignore

@@ -1 +1,13 @@
-# the symlink for this broke so.. whatever
+# This is intended as GLOBAL ~/.gitignore, not just this dotfiles repo. (But.. it's both.)
+
+# I like having a personal readme file to keep notes.
+PAUL.readme.md
+
+# git credential file
+.gitconfig.local
+
+# Nice and clean by default, but this does create a problem if I don't add into new repos gitignore and other folks dont have the same default.  problems when other folks don't have the same in their global gitignore.  
+node_modules
+
+# why u be like that
+.DS_Store

docs/bash history.md

@@ -0,0 +1,45 @@
+* `sh` has terrible history mgmt, just dont even try.
+* `fish` is aiight but needs some love
+* `bash` is better with a lot of config (like the below) -- Even then it still isn't good enough:
+  - up-arrow through history goes through all sessions, and not just the current one.
+
+```sh
+# Enable history expansion with space
+# E.g. typing !!<space> will replace the !! with your last command
+bind Space:magic-space
+
+# Use standard ISO 8601 timestamp
+# %F equivalent to %Y-%m-%d
+# %T equivalent to %H:%M:%S (24-hours format)
+export HISTTIMEFORMAT='%F %T '
+
+# keep history up to date, across sessions, in realtime
+#  http://unix.stackexchange.com/a/48113
+export HISTCONTROL="ignoredups"       # no duplicate entries, but keep space-prefixed commands. (bash-sensible uses "erasedups:ignoreboth" but i think i validated this already?)
+# here's the popularity amonngst other-peoples-dotfiles... (cmd: ag --nogroup --noheading --nofilename --hidden -o "HISTCONTROL.*" |  grep -E -o "(ignore|erase)[a-z:]*" | sort | uniq -c | sort -r)
+#      5 ignoreboth
+#      4 ignoredups
+#      2 erasedups:ignoreboth
+#      1 ignorespace:erasedups
+#      1 ignoredups:erasedups
+#      1 erasedups
+
+export HISTSIZE=100000                          # big big history (default is 500)
+export HISTFILESIZE=$HISTSIZE                   # big big history
+shopt -s histappend                             # append to history, don't overwrite it
+shopt -s cmdhist                                # Save multi-line commands as one command
+
+
+# Enable incremental history search with up/down arrows (also Readline goodness)
+# Learn more about this here: http://codeinthehole.com/writing/the-most-important-command-line-tip-incremental-history-searching-with-inputrc/
+bind '"\e[A": history-search-backward'
+bind '"\e[B": history-search-forward'
+
+# Don't record some commands
+export HISTIGNORE="&:[ ]*:exit:ls:bg:fg:history:clear"
+
+# Save and reload the history after each command finishes. Also look for any conflicting prompt_command definitions!!
+export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"
+
+# ^ the only downside with this is [up] on the readline will go over all history not just this bash session.
+```

fish/functions.fish

@@ -79,10 +79,10 @@ function beep --description "make two beeps"
   echo -e '\a'; sleep 0.1; echo -e '\a';
 end
 
-function all_binaries_in_path --description "list all binaries available in \$PATH, even if theres conflicts"
+function all_binaries_in_path --description \
+  "list all binaries available in \$PATH (incl conflicts). pipe it to grep. top-most are what's used, in case of conflicts"
   # based on https://unix.stackexchange.com/a/120790/110766 but tweaked to work on mac. and then made it faster.
   find -L $PATH -maxdepth 1 -perm +111 -type f 2>/dev/null
-  #gfind -L $PATH -maxdepth 1 -executable -type f # shrug. probably can delete this.
 end
 
 function my_paths --description "list paths, in order"