arzzen hace 8 años
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daed75e16f
Se han modificado 1 ficheros con 63 adiciones y 25 borrados
  1. 63
    25
      pert.sh

+ 63
- 25
pert.sh Ver fichero

@@ -1,21 +1,38 @@
1 1
 #!/bin/bash
2
+set -o nounset
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+set -o errexit
2 4
 
3
-# help text
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-if [ -z "$1" ] || [[ "$1" =~ [-]*(help|h) ]]; then
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-    echo -e "\n\033[1mA command line PERT calculator for quick estimates.\033[0m"
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-    echo -e "\nComma separated task list in the form \"1,2,12 4,5,9 2,3,6\", where whitespace separates tasks."
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-    echo -e "\n\033[1mUsage:\033[0m\n\tpert.sh [optimistic,realistic,pessimistic]\n"
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-    echo -e "\033[1mExample:\033[0m"
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-    echo -e "\tpert.sh 1,3,4"
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-    echo -e "\tpert.sh 10,15,20 5,7,10"
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-    echo -e "\tpert.sh \"1,2,3\" \"15,17,20\"\n"
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+function _echo 
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+{
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+    echo -e "$1"
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+}
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+
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+function _echoB
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+{
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+    _echo "\033[1m$1\033[0m"
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+}
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+
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+function _help
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+{
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+    _echo ""
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+    _echoB "A command line PERT calculator for quick estimates."
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+    _echo "Comma separated task list in the form \"1,2,12 4,5,9 2,3,6\", where whitespace separates tasks."
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+    _echo ""
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+    _echoB "Usage:"
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+    _echo "\tpert.sh [optimistic,realistic,pessimistic]"
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+    _echo ""
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+    _echoB "Example:"
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+    _echo "\tpert.sh 1,3,4"
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+    _echo "\tpert.sh 10,15,20 5,7,10"
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+    _echo "\tpert.sh \"1,2,3\" \"15,17,20\""
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+    _echo ""
12 29
     exit 1
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-fi
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+}
14 31
 
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+scale=2
15 33
 function _calc 
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 {
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-    scale=2
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-    echo "scale=$scale; $@" | bc -l | sed 's/^\./0./'
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+    _echo "scale=$scale; $@" | bc -l | sed 's/^\./0./'
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 }
20 37
 
21 38
 width=88
@@ -23,17 +40,27 @@ function _divider
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 {
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     divider=------------------------------
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     divider=" +"$divider$divider$divider"+"
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-    
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     printf "%$width.${width}s+\n" "$divider"
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 }
29 45
 
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-format=" | %-12s |%11s |%10s |%12s |%9s |%9s |%9s |\n"
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+readonly format=" | %-12s |%11s |%10s |%12s |%9s |%9s |%9s |\n"
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+function _header
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+{
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+    _echo ""
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+    _echoB "Tasks"
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+    _echo ""
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+    _divider
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+    printf "$format" "#" "optimistic" "realistic" "pessimistic" "duration" "risk" "variance"
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+    _divider
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+}
31 56
 
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-# header
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-echo -e "\n\033[1mTasks\033[0m\n"
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-_divider
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-printf "$format" "#" "optimistic" "realistic" "pessimistic" "duration" "risk" "variance"
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-_divider
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+# help text
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+if [ $# -eq 0 ] || [ -z "$1" ] || [[ "$1" =~ [-]*(help|h) ]]; then
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+    _help
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+fi
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+
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+# main 
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+_header
37 64
 
38 65
 counter=0
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 total_estimate=0
@@ -48,13 +75,22 @@ for var in "$@"; do
48 75
     IFS=',' read -ra ADDR <<< "$var"
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     # optimistic value
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-    o=${ADDR[0]}
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+    o="0"
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+    if [ -n "${ADDR[0]-}" ]; then
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+        o=${ADDR[0]}
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+    fi
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     # realistic value
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-    r=${ADDR[1]}
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+    r="0"
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+    if [ -n "${ADDR[1]-}" ]; then
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+        r=${ADDR[1]}
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+    fi
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     # pessimistic value
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-    p=${ADDR[2]}
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+    p="0"
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+    if [ -n "${ADDR[2]-}" ]; then
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+        p=${ADDR[2]}
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+    fi
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     # check values
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     if [ -z "$o" ] || [ -z "$r" ] || [ -z "$p" ]; then
@@ -83,11 +119,13 @@ _divider
83 119
 
84 120
 if [[ $total_estimate > 0 ]]; then
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-    # footer        
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+    # footer summary       
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     printf "$format" "summary" "-" "-" "-" $total_estimate $total_standard_deviation $total_variance
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     _divider
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-    echo -e "\n\033[1mThree point estimates\033[0m\n"
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+    _echo ""
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+    _echoB "Three point estimates"
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+    _echo ""
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     width=42 
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     tpeformat=" | %-13s |%11s |%10s |\n"
@@ -102,4 +140,4 @@ if [[ $total_estimate > 0 ]]; then
102 140
 
103 141
 fi
104 142
 
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-echo -e "\n"
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+_echo ""

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