mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
fbe5f6b804
Perforce has a file type "utf8" which represents a text file with explicit BOM. utf8-encoded files *without* BOM are stored as regular file type "text". The "utf8" file type behaves like text in all but one important way: it is stored, internally, without the leading 3 BOM bytes. git-p4 has historically imported utf8-with-BOM files (files stored, in Perforce, as type "utf8") the same way as regular text files - losing the BOM in the process. Under most circumstances this issue has little functional impact, as most systems consider the BOM to be optional and redundant, but this *is* a correctness failure, and can have lead to practical issues for example when BOMs are explicitly included in test files, for example in a file encoding test suite. Fix the handling of utf8-with-BOM files when importing changes from p4 to git, and introduce a test that checks it is working correctly. Signed-off-by: Tao Klerks <tao@klerks.biz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
370 lines
9 KiB
Bash
Executable file
370 lines
9 KiB
Bash
Executable file
#!/bin/sh
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test_description='git p4 filetype tests'
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. ./lib-git-p4.sh
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test_expect_success 'start p4d' '
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start_p4d
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'
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#
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# This series of tests checks newline handling Both p4 and
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# git store newlines as \n, and have options to choose how
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# newlines appear in checked-out files.
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#
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test_expect_success 'p4 client newlines, unix' '
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(
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cd "$cli" &&
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p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
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printf "unix\ncrlf\n" >f-unix &&
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printf "unix\r\ncrlf\r\n" >f-unix-as-crlf &&
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p4 add -t text f-unix &&
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p4 submit -d f-unix &&
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# LineEnd: unix; should be no change after sync
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cp f-unix f-unix-orig &&
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p4 sync -f &&
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test_cmp f-unix-orig f-unix &&
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# make sure stored in repo as unix newlines
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# use sed to eat python-appended newline
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p4 -G print //depot/f-unix | marshal_dump data 2 |\
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sed \$d >f-unix-p4-print &&
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test_cmp f-unix-orig f-unix-p4-print &&
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# switch to win, make sure lf -> crlf
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p4 client -o | sed "/LineEnd/s/:.*/:win/" | p4 client -i &&
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p4 sync -f &&
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test_cmp f-unix-as-crlf f-unix
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)
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'
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test_expect_success 'p4 client newlines, win' '
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(
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cd "$cli" &&
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p4 client -o | sed "/LineEnd/s/:.*/:win/" | p4 client -i &&
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printf "win\r\ncrlf\r\n" >f-win &&
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printf "win\ncrlf\n" >f-win-as-lf &&
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p4 add -t text f-win &&
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p4 submit -d f-win &&
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# LineEnd: win; should be no change after sync
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cp f-win f-win-orig &&
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p4 sync -f &&
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test_cmp f-win-orig f-win &&
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# make sure stored in repo as unix newlines
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# use sed to eat python-appened newline
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p4 -G print //depot/f-win | marshal_dump data 2 |\
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sed \$d >f-win-p4-print &&
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test_cmp f-win-as-lf f-win-p4-print &&
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# switch to unix, make sure lf -> crlf
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p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
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p4 sync -f &&
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test_cmp f-win-as-lf f-win
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)
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'
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test_expect_success 'ensure blobs store only lf newlines' '
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test_when_finished cleanup_git &&
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(
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cd "$git" &&
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git init &&
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git p4 sync //depot@all &&
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# verify the files in .git are stored only with newlines
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o=$(git ls-tree p4/master -- f-unix | cut -f1 | cut -d\ -f3) &&
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git cat-file blob $o >f-unix-blob &&
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test_cmp "$cli"/f-unix-orig f-unix-blob &&
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o=$(git ls-tree p4/master -- f-win | cut -f1 | cut -d\ -f3) &&
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git cat-file blob $o >f-win-blob &&
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test_cmp "$cli"/f-win-as-lf f-win-blob &&
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rm f-unix-blob f-win-blob
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)
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'
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test_expect_success 'gitattributes setting eol=lf produces lf newlines' '
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test_when_finished cleanup_git &&
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(
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# checkout the files and make sure core.eol works as planned
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cd "$git" &&
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git init &&
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echo "* eol=lf" >.gitattributes &&
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git p4 sync //depot@all &&
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git checkout -b master p4/master &&
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test_cmp "$cli"/f-unix-orig f-unix &&
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test_cmp "$cli"/f-win-as-lf f-win
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)
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'
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test_expect_success 'gitattributes setting eol=crlf produces crlf newlines' '
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test_when_finished cleanup_git &&
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(
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# checkout the files and make sure core.eol works as planned
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cd "$git" &&
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git init &&
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echo "* eol=crlf" >.gitattributes &&
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git p4 sync //depot@all &&
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git checkout -b master p4/master &&
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test_cmp "$cli"/f-unix-as-crlf f-unix &&
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test_cmp "$cli"/f-win-orig f-win
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)
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'
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test_expect_success 'crlf cleanup' '
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(
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cd "$cli" &&
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rm f-unix-orig f-unix-as-crlf &&
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rm f-win-orig f-win-as-lf &&
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p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
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p4 sync -f
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)
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'
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test_expect_success 'utf-16 file create' '
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(
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cd "$cli" &&
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# p4 saves this verbatim
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printf "three\nline\ntext\n" >f-ascii &&
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p4 add -t text f-ascii &&
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# p4 adds \377\376 header
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cp f-ascii f-ascii-as-utf16 &&
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p4 add -t utf16 f-ascii-as-utf16 &&
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# p4 saves this exactly as iconv produced it
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printf "three\nline\ntext\n" | iconv -f ascii -t utf-16 >f-utf16 &&
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p4 add -t utf16 f-utf16 &&
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# this also is unchanged
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cp f-utf16 f-utf16-as-text &&
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p4 add -t text f-utf16-as-text &&
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p4 submit -d "f files" &&
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# force update of client files
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p4 sync -f
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)
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'
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test_expect_success 'utf-16 file test' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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test_cmp "$cli/f-ascii" f-ascii &&
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test_cmp "$cli/f-ascii-as-utf16" f-ascii-as-utf16 &&
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test_cmp "$cli/f-utf16" f-utf16 &&
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test_cmp "$cli/f-utf16-as-text" f-utf16-as-text
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)
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'
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test_expect_success 'keyword file create' '
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(
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cd "$cli" &&
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printf "id\n\$Id\$\n\$Author\$\ntext\n" >k-text-k &&
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p4 add -t text+k k-text-k &&
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cp k-text-k k-text-ko &&
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p4 add -t text+ko k-text-ko &&
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cat k-text-k | iconv -f ascii -t utf-16 >k-utf16-k &&
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p4 add -t utf16+k k-utf16-k &&
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cp k-utf16-k k-utf16-ko &&
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p4 add -t utf16+ko k-utf16-ko &&
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p4 submit -d "k files" &&
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p4 sync -f
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)
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'
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build_smush() {
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cat >k_smush.py <<-\EOF &&
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import re, sys
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sys.stdout.write(re.sub(r'(?i)\$(Id|Header|Author|Date|DateTime|Change|File|Revision):[^$]*\$', r'$\1$', sys.stdin.read()))
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EOF
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cat >ko_smush.py <<-\EOF
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import re, sys
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sys.stdout.write(re.sub(r'(?i)\$(Id|Header):[^$]*\$', r'$\1$', sys.stdin.read()))
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EOF
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}
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test_expect_success 'keyword file test' '
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build_smush &&
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test_when_finished rm -f k_smush.py ko_smush.py &&
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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# text, ensure unexpanded
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"$PYTHON_PATH" "$TRASH_DIRECTORY/k_smush.py" <"$cli/k-text-k" >cli-k-text-k-smush &&
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test_cmp cli-k-text-k-smush k-text-k &&
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"$PYTHON_PATH" "$TRASH_DIRECTORY/ko_smush.py" <"$cli/k-text-ko" >cli-k-text-ko-smush &&
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test_cmp cli-k-text-ko-smush k-text-ko &&
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# utf16, even though p4 expands keywords, git p4 does not
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# try to undo that
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test_cmp "$cli/k-utf16-k" k-utf16-k &&
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test_cmp "$cli/k-utf16-ko" k-utf16-ko
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)
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'
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build_gendouble() {
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cat >gendouble.py <<-\EOF
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import sys
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import struct
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s = struct.pack(b">LL18s",
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0x00051607, # AppleDouble
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0x00020000, # version 2
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b"" # pad to 26 bytes
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)
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getattr(sys.stdout, 'buffer', sys.stdout).write(s)
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EOF
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}
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test_expect_success 'ignore apple' '
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test_when_finished rm -f gendouble.py &&
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build_gendouble &&
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(
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cd "$cli" &&
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test-tool genrandom apple 1024 >double.png &&
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"$PYTHON_PATH" "$TRASH_DIRECTORY/gendouble.py" >%double.png &&
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p4 add -t apple double.png &&
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p4 submit -d appledouble
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) &&
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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test ! -f double.png
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)
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'
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test_expect_success SYMLINKS 'create p4 symlink' '
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cd "$cli" &&
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ln -s symlink-target symlink &&
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p4 add symlink &&
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p4 submit -d "add symlink"
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'
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test_expect_success SYMLINKS 'ensure p4 symlink parsed correctly' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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test -L symlink &&
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test $(test_readlink symlink) = symlink-target
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)
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'
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test_expect_success SYMLINKS 'empty symlink target' '
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(
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# first create the file as a file
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cd "$cli" &&
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>empty-symlink &&
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p4 add empty-symlink &&
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p4 submit -d "add empty-symlink as a file"
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) &&
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(
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# now change it to be a symlink to "target1"
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cd "$cli" &&
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p4 edit empty-symlink &&
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p4 reopen -t symlink empty-symlink &&
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rm empty-symlink &&
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ln -s target1 empty-symlink &&
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p4 add empty-symlink &&
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p4 submit -d "make empty-symlink point to target1"
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) &&
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(
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# Hack the p4 depot to make the symlink point to nothing;
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# this should not happen in reality, but shows up
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# in p4 repos in the wild.
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#
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# The sed expression changes this:
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# @@
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# text
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# @target1
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# @
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# to this:
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# @@
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# text
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# @@
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#
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cd "$db/depot" &&
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sed "/@target1/{; s/target1/@/; n; d; }" \
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empty-symlink,v >empty-symlink,v.tmp &&
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mv empty-symlink,v.tmp empty-symlink,v
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) &&
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(
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# Make sure symlink really is empty. Asking
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# p4 to sync here will make it generate errors.
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cd "$cli" &&
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p4 print -q //depot/empty-symlink#2 >out &&
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test_must_be_empty out
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) &&
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test_when_finished cleanup_git &&
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# make sure git p4 handles it without error
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git p4 clone --dest="$git" //depot@all &&
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# fix the symlink, make it point to "target2"
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(
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cd "$cli" &&
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p4 open empty-symlink &&
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rm empty-symlink &&
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ln -s target2 empty-symlink &&
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p4 submit -d "make empty-symlink point to target2"
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) &&
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cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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test $(test_readlink empty-symlink) = target2
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)
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'
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test_expect_success SYMLINKS 'utf-8 with and without BOM in text file' '
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(
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cd "$cli" &&
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# some utf8 content
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echo some tǣxt >utf8-nobom-test &&
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# same utf8 content as before but with bom
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echo some tǣxt | sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-test &&
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# bom only
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dd bs=1 count=3 if=utf8-bom-test of=utf8-bom-empty-test &&
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p4 add utf8-nobom-test utf8-bom-test utf8-bom-empty-test &&
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p4 submit -d "add utf8 test files"
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) &&
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot@all &&
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(
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cd "$git" &&
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git checkout refs/remotes/p4/master &&
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echo some tǣxt >utf8-nobom-check &&
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test_cmp utf8-nobom-check utf8-nobom-test &&
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echo some tǣxt | sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-check &&
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test_cmp utf8-bom-check utf8-bom-test &&
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dd bs=1 count=3 if=utf8-bom-check of=utf8-bom-empty-check &&
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test_cmp utf8-bom-empty-check utf8-bom-empty-test
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)
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'
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test_done
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