t/t6000lib.sh

   1 [ -d .git/refs/tags ] || mkdir -p .git/refs/tags
   2
   3 :> sed.script
   4
   5 # Answer the sha1 has associated with the tag. The tag must exist in .git or .git/refs/tags
   6 tag()
   7 {
   8         _tag=$1
   9         [ -f .git/refs/tags/$_tag ] || error "tag: \"$_tag\" does not exist"
  10         cat .git/refs/tags/$_tag
  11 }
  12
  13 # Generate a commit using the text specified to make it unique and the tree
  14 # named by the tag specified.
  15 unique_commit()
  16 {
  17         _text=$1
  18         _tree=$2
  19         shift 2
  20         echo $_text | git commit-tree $(tag $_tree) "$@"
  21 }
  22
  23 # Save the output of a command into the tag specified. Prepend
  24 # a substitution script for the tag onto the front of sed.script
  25 save_tag()
  26 {
  27         _tag=$1
  28         [ -n "$_tag" ] || error "usage: save_tag tag commit-args ..."
  29         shift 1
  30         "$@" >.git/refs/tags/$_tag
  31
  32         echo "s/$(tag $_tag)/$_tag/g" > sed.script.tmp
  33         cat sed.script >> sed.script.tmp
  34         rm sed.script
  35         mv sed.script.tmp sed.script
  36 }
  37
  38 # Replace unhelpful sha1 hashses with their symbolic equivalents
  39 entag()
  40 {
  41         sed -f sed.script
  42 }
  43
  44 # Execute a command after first saving, then setting the GIT_AUTHOR_EMAIL
  45 # tag to a specified value. Restore the original value on return.
  46 as_author()
  47 {
  48         _author=$1
  49         shift 1
  50         _save=$GIT_AUTHOR_EMAIL
  51
  52         export GIT_AUTHOR_EMAIL="$_author"
  53         "$@"
  54         if test -z "$_save"
  55         then
  56                 unset GIT_AUTHOR_EMAIL
  57         else
  58                 export GIT_AUTHOR_EMAIL="$_save"
  59         fi
  60 }
  61
  62 commit_date()
  63 {
  64         _commit=$1
  65         git cat-file commit $_commit | sed -n "s/^committer .*> \([0-9]*\) .*/\1/p"
  66 }
  67
  68 on_committer_date()
  69 {
  70     _date=$1
  71     shift 1
  72     export GIT_COMMITTER_DATE="$_date"
  73     "$@"
  74     unset GIT_COMMITTER_DATE
  75 }
  76
  77 # Execute a command and suppress any error output.
  78 hide_error()
  79 {
  80         "$@" 2>/dev/null
  81 }
  82
  83 check_output()
  84 {
  85         _name=$1
  86         shift 1
  87         if eval "$*" | entag > $_name.actual
  88         then
  89                 diff $_name.expected $_name.actual
  90         else
  91                 return 1;
  92         fi
  93 }
  94
  95 # Turn a reasonable test description into a reasonable test name.
  96 # All alphanums translated into -'s which are then compressed and stripped
  97 # from front and back.
  98 name_from_description()
  99 {
 100         perl -pe '
 101                 s/[^A-Za-z0-9.]/-/g;
 102                 s/-+/-/g;
 103                 s/-$//;
 104                 s/^-//;
 105                 y/A-Z/a-z/;
 106         '
 107 }
 108
 109
 110 # Execute the test described by the first argument, by eval'ing
 111 # command line specified in the 2nd argument. Check the status code
 112 # is zero and that the output matches the stream read from
 113 # stdin.
 114 test_output_expect_success()
 115 {
 116         _description=$1
 117         _test=$2
 118         [ $# -eq 2 ] || error "usage: test_output_expect_success description test <<EOF ... EOF"
 119         _name=$(echo $_description | name_from_description)
 120         cat > $_name.expected
 121         test_expect_success "$_description" "check_output $_name \"$_test\""
 122 }