t/t6000lib.sh

   1 : included from 6002 and others
   2
   3 [ -d .git/refs/tags ] || mkdir -p .git/refs/tags
   4
   5 :> sed.script
   6
   7 # Answer the sha1 has associated with the tag. The tag must exist in .git or .git/refs/tags
   8 tag()
   9 {
  10         _tag=$1
  11         [ -f .git/refs/tags/$_tag ] || error "tag: \"$_tag\" does not exist"
  12         cat .git/refs/tags/$_tag
  13 }
  14
  15 # Generate a commit using the text specified to make it unique and the tree
  16 # named by the tag specified.
  17 unique_commit()
  18 {
  19         _text=$1
  20         _tree=$2
  21         shift 2
  22         echo $_text | git commit-tree $(tag $_tree) "$@"
  23 }
  24
  25 # Save the output of a command into the tag specified. Prepend
  26 # a substitution script for the tag onto the front of sed.script
  27 save_tag()
  28 {
  29         _tag=$1
  30         [ -n "$_tag" ] || error "usage: save_tag tag commit-args ..."
  31         shift 1
  32         "$@" >.git/refs/tags/$_tag
  33
  34         echo "s/$(tag $_tag)/$_tag/g" > sed.script.tmp
  35         cat sed.script >> sed.script.tmp
  36         rm sed.script
  37         mv sed.script.tmp sed.script
  38 }
  39
  40 # Replace unhelpful sha1 hashses with their symbolic equivalents
  41 entag()
  42 {
  43         sed -f sed.script
  44 }
  45
  46 # Execute a command after first saving, then setting the GIT_AUTHOR_EMAIL
  47 # tag to a specified value. Restore the original value on return.
  48 as_author()
  49 {
  50         _author=$1
  51         shift 1
  52         _save=$GIT_AUTHOR_EMAIL
  53
  54         GIT_AUTHOR_EMAIL="$_author"
  55         export GIT_AUTHOR_EMAIL
  56         "$@"
  57         if test -z "$_save"
  58         then
  59                 unset GIT_AUTHOR_EMAIL
  60         else
  61                 GIT_AUTHOR_EMAIL="$_save"
  62                 export GIT_AUTHOR_EMAIL
  63         fi
  64 }
  65
  66 commit_date()
  67 {
  68         _commit=$1
  69         git cat-file commit $_commit | sed -n "s/^committer .*> \([0-9]*\) .*/\1/p"
  70 }
  71
  72 on_committer_date()
  73 {
  74     _date=$1
  75     shift 1
  76     GIT_COMMITTER_DATE="$_date"
  77     export GIT_COMMITTER_DATE
  78     "$@"
  79     unset GIT_COMMITTER_DATE
  80 }
  81
  82 # Execute a command and suppress any error output.
  83 hide_error()
  84 {
  85         "$@" 2>/dev/null
  86 }
  87
  88 check_output()
  89 {
  90         _name=$1
  91         shift 1
  92         if eval "$*" | entag > $_name.actual
  93         then
  94                 diff $_name.expected $_name.actual
  95         else
  96                 return 1;
  97         fi
  98 }
  99
 100 # Turn a reasonable test description into a reasonable test name.
 101 # All alphanums translated into -'s which are then compressed and stripped
 102 # from front and back.
 103 name_from_description()
 104 {
 105         perl -pe '
 106                 s/[^A-Za-z0-9.]/-/g;
 107                 s/-+/-/g;
 108                 s/-$//;
 109                 s/^-//;
 110                 y/A-Z/a-z/;
 111         '
 112 }
 113
 114
 115 # Execute the test described by the first argument, by eval'ing
 116 # command line specified in the 2nd argument. Check the status code
 117 # is zero and that the output matches the stream read from
 118 # stdin.
 119 test_output_expect_success()
 120 {
 121         _description=$1
 122         _test=$2
 123         [ $# -eq 2 ] || error "usage: test_output_expect_success description test <<EOF ... EOF"
 124         _name=$(echo $_description | name_from_description)
 125         cat > $_name.expected
 126         test_expect_success "$_description" "check_output $_name \"$_test\""
 127 }