Merge pull request #32 from Fakerr/mac-fix

fix mac os issues

README.md

@@ -86,6 +86,7 @@ $ sudo make install
 ```
 ## Requirements
 - OS: Linux or OSX
+- Bash 4.3 or more
 - Tools: git, less, sed
 
 ##### Optional Requirements

git-recall

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
 
+
 # usage info
 usage() {
   cat <<EOF
@@ -23,9 +24,9 @@ GIT_LOG=""
 COMMITS=""
 SINCE="1 days ago"     # show logs for last day by default
 COMMITS_UNCOL=()       # commits without colors
-SED_BIN=""             # Sed option to use according OS.
+SED_CMD=""             # Sed command to use according OS.
 LESSKEY=false
-VERSION="1.1.12"
+VERSION="1.2.0"
 
 # Set key bindings.
 au="`echo -e '\e[A'`" # arrow up
@@ -37,7 +38,7 @@ ad_1="j"              # arrow down
 nl_1="e"              # expand
 
 # Colored output.
-colored() {
+function colored() {
     GREEN=$(tput setaf 4)
     YELLOW=$(tput setaf 3)
     NORMAL=$(tput sgr0)
@@ -45,13 +46,19 @@ colored() {
 } 
 
 # Uncolored output.
-uncolored() {
+function uncolored() {
     GREEN=""
     YELLOW=""
     NORMAL=""
     REVERSE=""
 }
 
+# Clear screen from cursor to end of screen
+function clear_screen() {
+    echo -e "\E[J"
+    tput cuu1
+}
+
 # Are we in a git repo?
 if [[ ! -d ".git" ]] && ! git rev-parse --git-dir &>/dev/null; then
     echo "abort: not a git repository." 1>&2
@@ -100,11 +107,6 @@ else
     uncolored
 fi
 
-# Check if lesskey is installed.
-if command -v lesskey &> /dev/null; then
-    LESSKEY=true
-fi
-
 # Set AUTHOR to current user if no param passed or display for all users if param equal to "all". 
 if [[ ! -n $AUTHOR ]]; then
     AUTHOR=$(git config user.name 2>/dev/null)
@@ -117,7 +119,7 @@ if [[ $FETCH == true ]]; then
     echo "${GREEN}Fetching changes...${NORMAL}"
     git fetch --all &> /dev/null
     tput cuu1
-    tput ed # clear screen
+    clear_screen
 fi
 
 # Log template.
@@ -148,16 +150,21 @@ if [[ $NI = 0 ]]; then
     fi
 fi
 
-# Set correct sed option according OS's type
+# Check if lesskey is installed.
+if command -v lesskey &> /dev/null; then
+    LESSKEY=true
+fi
+
+# Set correct sed command according OS's type
 case "$OSTYPE" in
-    darwin*) SED_BIN="sed -E" ;;
-    *)       SED_BIN="sed -r" ;;
+    darwin*) SED_CMD="sed -E s/"$'\E'"\[([0-9]{1,2}(;[0-9]{1,2})*)?m//g" ;;
+    *)       SED_CMD="sed -r s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g" ;;
 esac
 
 # Create array with uncolred commits (removing escape sequences using sed)
 for elt in "${COMMITS[@]}"
 do
-    ELT="$(echo "$elt" | $SED_BIN "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")" # remove colors escape codes
+    ELT="$(echo "$elt" | $SED_CMD)" # remove colors escape codes
     COMMITS_UNCOL+=("$ELT")
 done
 
@@ -180,7 +187,7 @@ function get_diff() {
     DIFF_TIP=${ELT:0:7}
     DIFF_CMD="git show $DIFF_TIP --color=always"
     DIFF=$(eval ${DIFF_CMD} 2>/dev/null)
-    tmp_diff="$(echo "$DIFF" | $SED_BIN "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g")"
+    tmp_diff="$(echo "$DIFF" | $SED_CMD)"
     off=$(echo "$tmp_diff" | grep -c ".\{$CN\}") # Number of lines in the diff that are longer than terminal width.
     DIFF_LINES_NUMBER="$(echo "$DIFF" | wc -l)"
     DIFF_LINES_NUMBER=$(( DIFF_LINES_NUMBER + off ))
@@ -195,10 +202,10 @@ function print_diff() {
 	else 
 	    echo "$DIFF" | less -r
 	fi
-	tput ed # Clear screen
+	clear_screen
     else 
 	stop=false
-	tput ed
+	clear_screen
 	for i in `seq 1 $TN`
 	do
 	    echo -n "$NORMAL"
@@ -220,7 +227,7 @@ function print_diff() {
 		    ;;
 	    esac
 	done
-	[[ $END = false ]] && tput cuu $(( TN + DIFF_LINES_NUMBER + OFFSET )) && tput ed
+	[[ $END = false ]] && tput cuu $(( TN + DIFF_LINES_NUMBER + OFFSET )) && clear_screen
 	[[ $END = true ]] && tput cuu 1
     fi
 }
@@ -291,7 +298,7 @@ do
 
    	    [[ $TN != $(( SN - 1 )) ]] && tput cuu $(( TN + OFFSET_2 ))
    	    [[ $TN == $(( SN - 1 )) ]] && tput cuu $(( TN + EXT ))
-            [[ $SI != 1 ]] && tput ed # clear screen
+            [[ $SI != 1 ]] && clear_screen
             ;;
 	"$ad" | "$ad_1")
    	    CP=$(( CP + 1 ))
@@ -300,8 +307,8 @@ do
 
    	    [[ $TN != $(( SN - 1 )) ]] && tput cuu $(( TN + OFFSET_2 ))
    	    [[ $TN == $(( SN - 1 )) ]] && tput cuu $(( TN + EXT ))
-            [[ $SI != 1 ]] && tput ed # clear screen
-            [[ $SI = 1 ]] && [[ $CP = 1 ]] && tput ed # clear screen
+            [[ $SI != 1 ]] && clear_screen
+            [[ $SI = 1 ]] && [[ $CP = 1 ]] && clear_screen
             ;;
 	"$nl" | "$nl_1")
    	    [[  $TN == $NI ]] && tput cuu $(( TN + OFFSET_2 ))