t/t4124-apply-ws-rule.sh

   1 #!/bin/sh
   2
   3 test_description='core.whitespace rules and git apply'
   4
   5 . ./test-lib.sh
   6
   7 prepare_test_file () {
   8
   9         # A line that has character X is touched iff RULE is in effect:
  10         #       X  RULE
  11         #       !  trailing-space
  12         #       @  space-before-tab
  13         #       #  indent-with-non-tab
  14         sed -e "s/_/ /g" -e "s/>/       /" <<-\EOF
  15                 An_SP in an ordinary line>and a HT.
  16                 >A HT.
  17                 _>A SP and a HT (@).
  18                 _>_A SP, a HT and a SP (@).
  19                 _______Seven SP.
  20                 ________Eight SP (#).
  21                 _______>Seven SP and a HT (@).
  22                 ________>Eight SP and a HT (@#).
  23                 _______>_Seven SP, a HT and a SP (@).
  24                 ________>_Eight SP, a HT and a SP (@#).
  25                 _______________Fifteen SP (#).
  26                 _______________>Fifteen SP and a HT (@#).
  27                 ________________Sixteen SP (#).
  28                 ________________>Sixteen SP and a HT (@#).
  29                 _____a__Five SP, a non WS, two SP.
  30                 A line with a (!) trailing SP_
  31                 A line with a (!) trailing HT>
  32         EOF
  33 }
  34
  35 apply_patch () {
  36         >target &&
  37         sed -e "s|\([ab]\)/file|\1/target|" <patch |
  38         git apply "$@"
  39 }
  40
  41 test_fix () {
  42
  43         # fix should not barf
  44         apply_patch --whitespace=fix || return 1
  45
  46         # find touched lines
  47         diff file target | sed -n -e "s/^> //p" >fixed
  48
  49         # the changed lines are all expeced to change
  50         fixed_cnt=$(wc -l <fixed)
  51         case "$1" in
  52         '') expect_cnt=$fixed_cnt ;;
  53         ?*) expect_cnt=$(grep "[$1]" <fixed | wc -l) ;;
  54         esac
  55         test $fixed_cnt -eq $expect_cnt || return 1
  56
  57         # and we are not missing anything
  58         case "$1" in
  59         '') expect_cnt=0 ;;
  60         ?*) expect_cnt=$(grep "[$1]" <file | wc -l) ;;
  61         esac
  62         test $fixed_cnt -eq $expect_cnt || return 1
  63
  64         # Get the patch actually applied
  65         git diff-files -p target >fixed-patch
  66         test -s fixed-patch && return 0
  67
  68         # Make sure it is complaint-free
  69         >target
  70         git apply --whitespace=error-all <fixed-patch
  71
  72 }
  73
  74 test_expect_success setup '
  75
  76         >file &&
  77         git add file &&
  78         prepare_test_file >file &&
  79         git diff-files -p >patch &&
  80         >target &&
  81         git add target
  82
  83 '
  84
  85 test_expect_success 'whitespace=nowarn, default rule' '
  86
  87         apply_patch --whitespace=nowarn &&
  88         diff file target
  89
  90 '
  91
  92 test_expect_success 'whitespace=warn, default rule' '
  93
  94         apply_patch --whitespace=warn &&
  95         diff file target
  96
  97 '
  98
  99 test_expect_success 'whitespace=error-all, default rule' '
 100
 101         apply_patch --whitespace=error-all && return 1
 102         test -s target && return 1
 103         : happy
 104
 105 '
 106
 107 test_expect_success 'whitespace=error-all, no rule' '
 108
 109         git config core.whitespace -trailing,-space-before,-indent &&
 110         apply_patch --whitespace=error-all &&
 111         diff file target
 112
 113 '
 114
 115 test_expect_success 'whitespace=error-all, no rule (attribute)' '
 116
 117         git config --unset core.whitespace &&
 118         echo "target -whitespace" >.gitattributes &&
 119         apply_patch --whitespace=error-all &&
 120         diff file target
 121
 122 '
 123
 124 for t in - ''
 125 do
 126         case "$t" in '') tt='!' ;; *) tt= ;; esac
 127         for s in - ''
 128         do
 129                 case "$s" in '') ts='@' ;; *) ts= ;; esac
 130                 for i in - ''
 131                 do
 132                         case "$i" in '') ti='#' ;; *) ti= ;; esac
 133                         rule=${t}trailing,${s}space,${i}indent
 134
 135                         rm -f .gitattributes
 136                         test_expect_success "rule=$rule" '
 137                                 git config core.whitespace "$rule" &&
 138                                 test_fix "$tt$ts$ti"
 139                         '
 140
 141                         test_expect_success "rule=$rule (attributes)" '
 142                                 git config --unset core.whitespace &&
 143                                 echo "target whitespace=$rule" >.gitattributes &&
 144                                 test_fix "$tt$ts$ti"
 145                         '
 146
 147                 done
 148         done
 149 done
 150
 151 create_patch () {
 152         sed -e "s/_/ /" <<-\EOF
 153                 diff --git a/target b/target
 154                 index e69de29..8bd6648 100644
 155                 --- a/target
 156                 +++ b/target
 157                 @@ -0,0 +1,3 @@
 158                 +An empty line follows
 159                 +
 160                 +A line with trailing whitespace and no newline_
 161                 \ No newline at end of file
 162         EOF
 163 }
 164
 165 test_expect_success 'trailing whitespace & no newline at the end of file' '
 166         >target &&
 167         create_patch >patch-file &&
 168         git apply --whitespace=fix patch-file &&
 169         grep "newline$" target &&
 170         grep "^$" target
 171 '
 172
 173 test_done