Add time since last Git commit to prompt.

bash/config

@@ -71,4 +71,4 @@ _vgem()
 complete -F _vgem -o dirnames vgem
 
 # prompt
-PS1="\[$BLDBLK\]\n\u:\w \[$TXTBLU\](\$(vcprompt -f %b%m%u)\[$TXTRST\]) \n→ "
+PS1="\[$BLDBLK\]\n\u:\w \[$TXTBLU\](\$(srb_git_prompt)\[$TXTBLU\])\[$TXTRST\] \n→ "

bash/git-prompt

@@ -0,0 +1,59 @@
+# Combine Git branch name and time since last commit.
+# Taken from https://gist.github.com/926846 with some modifications.
+#
+# Example:
+# PS1="(\h • ${YELLOW}\W${NORMAL}\$(srb_git_prompt))${BRIGHT_BLUE}\$${NORMAL} "
+#
+function relative_time_since_last_commit {
+    last_commit=`git log --pretty=format:'%ar' -1`
+    echo ${last_commit}
+}
+
+function format_unit {
+    local UNIT=$1
+    case "$UNIT" in
+        seconds)    UNIT="s"    ;;
+        minutes)    UNIT="m"    ;;
+        hours)      UNIT="h"    ;;
+        days)       UNIT="d"    ;;
+        weeks)      UNIT="w"    ;;
+        months)     UNIT="mo"   ;;
+        years)      UNIT="yr"   ;;
+        *);;
+    esac
+    echo ${UNIT}
+}
+
+function color_based_on_unit {
+    local UNIT=$1
+    if [ "$UNIT" == "s" ] || [ "$UNIT" == "m" ]; then
+        local COLOR=${TXTBLU}
+    elif [ "$UNIT" == "h" ]; then
+        local COLOR=${TXTYLW}
+    else
+        local COLOR=${TXTRED}
+    fi
+    echo ${COLOR}
+}
+
+srb_git_prompt() {
+    local g="$(__gitdir)"
+    if [ -n "$g" ]; then
+        local SINCE_LAST_COMMIT=$(relative_time_since_last_commit)
+        SINCE_LAST_COMMIT=(${SINCE_LAST_COMMIT// / })
+        local VALUE=${SINCE_LAST_COMMIT[0]}
+        local UNIT=$(format_unit ${SINCE_LAST_COMMIT[1]/,/})
+
+        # for old projects, git reports years and months
+        if [ ${SINCE_LAST_COMMIT[2]} != "ago" ]; then
+            local EXTRA_VALUE=${SINCE_LAST_COMMIT[2]}
+            local EXTRA_UNIT=$(format_unit ${SINCE_LAST_COMMIT[3]/,/})
+        fi
+
+        local COLOR=$(color_based_on_unit $UNIT)
+        local DELTA="${VALUE}${UNIT}${EXTRA_VALUE}${EXTRA_UNIT}"
+
+        # The __git_ps1 function inserts the current git branch where %s is
+        echo `__git_ps1 "%s ${COLOR}∆${DELTA}"`
+    fi
+}

bashrc

@@ -1,5 +1,6 @@
 . ~/bin/dotfiles/bash/env
 . ~/bin/dotfiles/bash/git-completion
+. ~/bin/dotfiles/bash/git-prompt
 . ~/bin/dotfiles/bash/config
 . ~/bin/dotfiles/bash/aliases
 [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"