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a437390310
Add a diff driver for Scheme-like languages which recognizes top level and local `define` forms, whether it is a function definition, binding, syntax definition or a user-defined `define-xyzzy` form. Also supports R6RS `library` forms, `module` forms along with class and struct declarations used in Racket (PLT Scheme). Alternate "def" syntax such as those in Gerbil Scheme are also supported, like defstruct, defsyntax and so on. The rationale for picking `define` forms for the hunk headers is because it is usually the only significant form for defining the structure of the program, and it is a common pattern for schemers to have local function definitions to hide their visibility, so it is not only the top level `define`'s that are of interest. Schemers also extend the language with macros to provide their own define forms (for example, something like a `define-test-suite`) which is also captured in the hunk header. Since it is common practice to extend syntax with variants of a form like `module+`, `class*` etc, those have been supported as well. The word regex is a best-effort attempt to conform to R7RS[1] valid identifiers, symbols and numbers. [1] https://small.r7rs.org/attachment/r7rs.pdf (section 2.1) Signed-off-by: Atharva Raykar <raykar.ath@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
104 lines
2.6 KiB
Bash
Executable File
104 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2007 Johannes E. Schindelin
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#
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test_description='Test custom diff function name patterns'
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. ./test-lib.sh
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test_expect_success 'setup' '
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# a non-trivial custom pattern
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git config diff.custom1.funcname "!static
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!String
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[^ ].*s.*" &&
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# a custom pattern which matches to end of line
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git config diff.custom2.funcname "......Beer\$" &&
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# alternation in pattern
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git config diff.custom3.funcname "Beer$" &&
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git config diff.custom3.xfuncname "^[ ]*((public|static).*)$" &&
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# for regexp compilation tests
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echo A >A.java &&
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echo B >B.java
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'
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test_expect_success 'setup: test-tool userdiff' '
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# Make sure additions to builtin_drivers are sorted
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test_when_finished "rm builtin-drivers.sorted" &&
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test-tool userdiff list-builtin-drivers >builtin-drivers &&
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test_file_not_empty builtin-drivers &&
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sort <builtin-drivers >builtin-drivers.sorted &&
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test_cmp builtin-drivers.sorted builtin-drivers &&
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# Ditto, but "custom" requires the .git directory and config
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# to be setup and read.
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test_when_finished "rm custom-drivers.sorted" &&
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test-tool userdiff list-custom-drivers >custom-drivers &&
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test_file_not_empty custom-drivers &&
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sort <custom-drivers >custom-drivers.sorted &&
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test_cmp custom-drivers.sorted custom-drivers
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'
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diffpatterns="
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$(cat builtin-drivers)
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$(cat custom-drivers)
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"
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for p in $diffpatterns
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do
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test_expect_success "builtin $p pattern compiles" '
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echo "*.java diff=$p" >.gitattributes &&
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test_expect_code 1 git diff --no-index \
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A.java B.java 2>msg &&
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test_i18ngrep ! fatal msg &&
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test_i18ngrep ! error msg
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'
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test_expect_success "builtin $p wordRegex pattern compiles" '
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echo "*.java diff=$p" >.gitattributes &&
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test_expect_code 1 git diff --no-index --word-diff \
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A.java B.java 2>msg &&
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test_i18ngrep ! fatal msg &&
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test_i18ngrep ! error msg
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'
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done
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test_expect_success 'last regexp must not be negated' '
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echo "*.java diff=java" >.gitattributes &&
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test_config diff.java.funcname "!static" &&
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test_expect_code 128 git diff --no-index A.java B.java 2>msg &&
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test_i18ngrep ": Last expression must not be negated:" msg
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'
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test_expect_success 'setup hunk header tests' '
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for i in $diffpatterns
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do
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echo "$i-* diff=$i"
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done > .gitattributes &&
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# add all test files to the index
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(
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cd "$TEST_DIRECTORY"/t4018 &&
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git --git-dir="$TRASH_DIRECTORY/.git" add .
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) &&
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# place modified files in the worktree
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for i in $(git ls-files)
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do
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sed -e "s/ChangeMe/IWasChanged/" <"$TEST_DIRECTORY/t4018/$i" >"$i" || return 1
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done
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'
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# check each individual file
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for i in $(git ls-files)
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do
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test_expect_success "hunk header: $i" "
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git diff -U1 $i >actual &&
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grep '@@ .* @@.*RIGHT' actual
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"
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done
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test_done
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