mirror of
https://github.com/git/git.git
synced 2024-11-24 10:26:17 +08:00
12426e114b
Callers of diff_populate_filespec() can choose to ask only for the size of the blob without grabbing the blob data, and the function, after running lstat() when the filespec points at a working tree file, returns by copying the value in size field of the stat structure into the size field of the filespec when this is the case. However, this short-cut cannot be taken if the contents from the path needs to go through convert_to_git(), whose resulting real blob data may be different from what is in the working tree file. As "git diff --quiet" compares the .size fields of filespec structures to skip content comparison, this bug manifests as a false "there are differences" for a file that needs eol conversion, for example. Reported-by: Mike Crowe <mac@mcrowe.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
165 lines
4.9 KiB
Bash
Executable File
165 lines
4.9 KiB
Bash
Executable File
#!/bin/sh
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test_description='Return value of diffs'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo 1 >a &&
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git add . &&
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git commit -m first &&
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echo 2 >b &&
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git add . &&
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git commit -a -m second &&
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mkdir -p test-outside/repo && (
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cd test-outside/repo &&
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git init &&
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echo "1 1" >a &&
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git add . &&
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git commit -m 1
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) &&
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mkdir -p test-outside/non/git && (
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cd test-outside/non/git &&
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echo "1 1" >a &&
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echo "1 1" >matching-file &&
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echo "1 1 " >trailing-space &&
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echo "1 1" >extra-space &&
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echo "2" >never-match
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)
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'
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test_expect_success 'git diff-tree HEAD^ HEAD' '
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test_expect_code 1 git diff-tree --quiet HEAD^ HEAD >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-tree HEAD^ HEAD -- a' '
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test_expect_code 0 git diff-tree --quiet HEAD^ HEAD -- a >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-tree HEAD^ HEAD -- b' '
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test_expect_code 1 git diff-tree --quiet HEAD^ HEAD -- b >cnt &&
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test_line_count = 0 cnt
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'
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# this diff outputs one line: sha1 of the given head
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test_expect_success 'echo HEAD | git diff-tree --stdin' '
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echo $(git rev-parse HEAD) |
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test_expect_code 1 git diff-tree --quiet --stdin >cnt &&
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test_line_count = 1 cnt
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'
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test_expect_success 'git diff-tree HEAD HEAD' '
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test_expect_code 0 git diff-tree --quiet HEAD HEAD >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-files' '
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test_expect_code 0 git diff-files --quiet >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-index --cached HEAD' '
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test_expect_code 0 git diff-index --quiet --cached HEAD >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-index --cached HEAD^' '
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test_expect_code 1 git diff-index --quiet --cached HEAD^ >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-index --cached HEAD^' '
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echo text >>b &&
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echo 3 >c &&
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git add . &&
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test_expect_code 1 git diff-index --quiet --cached HEAD^ >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-tree -Stext HEAD^ HEAD -- b' '
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git commit -m "text in b" &&
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test_expect_code 1 git diff-tree --quiet -Stext HEAD^ HEAD -- b >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-tree -Snot-found HEAD^ HEAD -- b' '
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test_expect_code 0 git diff-tree --quiet -Snot-found HEAD^ HEAD -- b >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-files' '
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echo 3 >>c &&
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test_expect_code 1 git diff-files --quiet >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff-index --cached HEAD' '
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git update-index c &&
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test_expect_code 1 git diff-index --quiet --cached HEAD >cnt &&
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test_line_count = 0 cnt
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'
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test_expect_success 'git diff, one file outside repo' '
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(
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cd test-outside/repo &&
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test_expect_code 0 git diff --quiet a ../non/git/matching-file &&
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test_expect_code 1 git diff --quiet a ../non/git/extra-space
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)
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'
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test_expect_success 'git diff, both files outside repo' '
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(
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GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/test-outside" &&
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export GIT_CEILING_DIRECTORIES &&
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cd test-outside/non/git &&
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test_expect_code 0 git diff --quiet a matching-file &&
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test_expect_code 1 git diff --quiet a extra-space
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)
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'
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test_expect_success 'git diff --ignore-space-at-eol, one file outside repo' '
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(
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cd test-outside/repo &&
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test_expect_code 0 git diff --quiet --ignore-space-at-eol a ../non/git/trailing-space &&
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test_expect_code 1 git diff --quiet --ignore-space-at-eol a ../non/git/extra-space
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)
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'
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test_expect_success 'git diff --ignore-space-at-eol, both files outside repo' '
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(
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GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/test-outside" &&
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export GIT_CEILING_DIRECTORIES &&
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cd test-outside/non/git &&
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test_expect_code 0 git diff --quiet --ignore-space-at-eol a trailing-space &&
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test_expect_code 1 git diff --quiet --ignore-space-at-eol a extra-space
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)
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'
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test_expect_success 'git diff --ignore-all-space, one file outside repo' '
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(
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cd test-outside/repo &&
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test_expect_code 0 git diff --quiet --ignore-all-space a ../non/git/trailing-space &&
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test_expect_code 0 git diff --quiet --ignore-all-space a ../non/git/extra-space &&
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test_expect_code 1 git diff --quiet --ignore-all-space a ../non/git/never-match
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)
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'
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test_expect_success 'git diff --ignore-all-space, both files outside repo' '
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(
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GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/test-outside" &&
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export GIT_CEILING_DIRECTORIES &&
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cd test-outside/non/git &&
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test_expect_code 0 git diff --quiet --ignore-all-space a trailing-space &&
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test_expect_code 0 git diff --quiet --ignore-all-space a extra-space &&
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test_expect_code 1 git diff --quiet --ignore-all-space a never-match
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)
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'
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test_expect_success 'git diff --quiet ignores stat-change only entries' '
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test-chmtime +10 a &&
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echo modified >>b &&
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test_expect_code 1 git diff --quiet
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'
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test_expect_success 'git diff --quiet on a path that need conversion' '
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echo "crlf.txt text=auto" >.gitattributes &&
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printf "Hello\r\nWorld\r\n" >crlf.txt &&
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git add .gitattributes crlf.txt &&
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printf "Hello\r\nWorld\n" >crlf.txt &&
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git diff --quiet crlf.txt
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'
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test_done
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