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![Joel Holdsworth](/assets/img/avatar_default.png)
RCS keywords are strings that are replaced with information from Perforce. Examples include $Date$, $Author$, $File$, $Change$ etc. Perforce resolves these by expanding them with their expanded values when files are synced, but Git's data model requires these expanded values to be converted back into their unexpanded form. Previously, git-p4.py would implement this behaviour through the use of regular expressions. However, the regular expression substitution was applied using decoded strings i.e. the content of incoming commit diffs was first decoded from bytes into UTF-8, processed with regular expressions, then converted back to bytes. Not only is this behaviour inefficient, but it is also a cause of a common issue caused by text files containing invalid UTF-8 data. For files created in Windows, CP1252 Smart Quote Characters (0x93 and 0x94) are seen fairly frequently. These codes are invalid in UTF-8, so if the script encountered any file containing them, on Python 2 the symbols will be corrupted, and on Python 3 the script will fail with an exception. This patch replaces this decoding/encoding with bytes object regular expressions, so that the substitution is performed directly upon the source data with no conversions. A test for smart quote handling has been added to the t9810-git-p4-rcs.sh test suite. Signed-off-by: Joel Holdsworth <jholdsworth@nvidia.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
378 lines
9.1 KiB
Bash
Executable file
378 lines
9.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='git p4 rcs keywords'
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. ./lib-git-p4.sh
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CP1252="\223\224"
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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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# Make one file with keyword lines at the top, and
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# enough plain text to be able to test modifications
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# far away from the keywords.
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#
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test_expect_success 'init depot' '
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(
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cd "$cli" &&
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cat <<-\EOF >filek &&
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$Id$
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/* $Revision$ */
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# $Change$
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line4
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line5
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line6
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line7
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line8
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EOF
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sed "s/Revision/Revision: do not scrub me/" <filek >fileko &&
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sed "s/Id/Id: do not scrub me/" <fileko >file_text &&
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p4 add -t text+k filek &&
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p4 submit -d "filek" &&
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p4 add -t text+ko fileko &&
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p4 submit -d "fileko" &&
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printf "$CP1252" >fileko_cp1252 &&
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p4 add -t text+ko fileko_cp1252 &&
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p4 submit -d "fileko_cp1252" &&
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p4 add -t text file_text &&
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p4 submit -d "file_text"
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)
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'
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#
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# Generate these in a function to make it easy to use single quote marks.
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#
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write_scrub_scripts () {
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cat >"$TRASH_DIRECTORY/scrub_k.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$', sys.stdin.read()))
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EOF
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cat >"$TRASH_DIRECTORY/scrub_ko.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 'scrub scripts' '
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write_scrub_scripts
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'
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#
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# Compare $cli/file to its scrubbed version, should be different.
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# Compare scrubbed $cli/file to $git/file, should be same.
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#
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scrub_k_check () {
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file="$1" &&
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scrub="$TRASH_DIRECTORY/$file" &&
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"$PYTHON_PATH" "$TRASH_DIRECTORY/scrub_k.py" <"$git/$file" >"$scrub" &&
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! test_cmp "$cli/$file" "$scrub" &&
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test_cmp "$git/$file" "$scrub" &&
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rm "$scrub"
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}
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scrub_ko_check () {
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file="$1" &&
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scrub="$TRASH_DIRECTORY/$file" &&
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"$PYTHON_PATH" "$TRASH_DIRECTORY/scrub_ko.py" <"$git/$file" >"$scrub" &&
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! test_cmp "$cli/$file" "$scrub" &&
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test_cmp "$git/$file" "$scrub" &&
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rm "$scrub"
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}
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#
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# Modify far away from keywords. If no RCS lines show up
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# in the diff, there is no conflict.
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#
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test_expect_success 'edit far away from RCS lines' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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sed "s/^line7/line7 edit/" <filek >filek.tmp &&
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mv -f filek.tmp filek &&
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git commit -m "filek line7 edit" filek &&
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git p4 submit &&
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scrub_k_check filek
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)
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'
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#
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# Modify near the keywords. This will require RCS scrubbing.
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#
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test_expect_success 'edit near RCS lines' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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sed "s/^line4/line4 edit/" <filek >filek.tmp &&
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mv -f filek.tmp filek &&
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git commit -m "filek line4 edit" filek &&
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git p4 submit &&
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scrub_k_check filek
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)
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'
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#
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# Modify the keywords themselves. This also will require RCS scrubbing.
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#
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test_expect_success 'edit keyword lines' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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sed "/Revision/d" <filek >filek.tmp &&
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mv -f filek.tmp filek &&
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git commit -m "filek remove Revision line" filek &&
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git p4 submit &&
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scrub_k_check filek
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)
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'
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#
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# Scrubbing text+ko files should not alter all keywords, just Id, Header.
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#
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test_expect_success 'scrub ko files differently' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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sed "s/^line4/line4 edit/" <fileko >fileko.tmp &&
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mv -f fileko.tmp fileko &&
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git commit -m "fileko line4 edit" fileko &&
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git p4 submit &&
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scrub_ko_check fileko &&
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! scrub_k_check fileko
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)
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'
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# hack; git p4 submit should do it on its own
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test_expect_success 'cleanup after failure' '
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(
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cd "$cli" &&
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p4 revert ...
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)
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'
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# perl $File:: bug check
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test_expect_success 'ktext expansion should not expand multi-line $File::' '
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(
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cd "$cli" &&
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cat >lv.pm <<-\EOF &&
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my $wanted = sub { my $f = $File::Find::name;
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if ( -f && $f =~ /foo/ ) {
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EOF
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p4 add -t ktext lv.pm &&
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p4 submit -d "lv.pm"
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) &&
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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test_cmp "$cli/lv.pm" lv.pm
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)
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'
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#
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# Do not scrub anything but +k or +ko files. Sneak a change into
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# the cli file so that submit will get a conflict. Make sure that
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# scrubbing doesn't make a mess of things.
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#
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# This might happen only if the git repo is behind the p4 repo at
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# submit time, and there is a conflict.
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#
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test_expect_success 'do not scrub plain text' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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sed "s/^line4/line4 edit/" <file_text >file_text.tmp &&
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mv -f file_text.tmp file_text &&
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git commit -m "file_text line4 edit" file_text &&
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(
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cd "$cli" &&
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p4 open file_text &&
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sed "s/^line5/line5 p4 edit/" <file_text >file_text.tmp &&
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mv -f file_text.tmp file_text &&
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p4 submit -d "file5 p4 edit"
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) &&
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echo s | test_expect_code 1 git p4 submit &&
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(
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# make sure the file is not left open
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cd "$cli" &&
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! p4 fstat -T action file_text
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)
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)
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'
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# hack; git p4 submit should do it on its own
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test_expect_success 'cleanup after failure 2' '
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(
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cd "$cli" &&
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p4 revert ...
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)
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'
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create_kw_file () {
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cat <<\EOF >"$1"
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/* A file
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Id: $Id$
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Revision: $Revision$
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File: $File$
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*/
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int main(int argc, const char **argv) {
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return 0;
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}
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EOF
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}
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test_expect_success 'add kwfile' '
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(
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cd "$cli" &&
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echo file1 >file1 &&
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p4 add file1 &&
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p4 submit -d "file 1" &&
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create_kw_file kwfile1.c &&
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p4 add kwfile1.c &&
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p4 submit -d "Add rcw kw file" kwfile1.c
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)
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'
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p4_append_to_file () {
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f="$1" &&
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p4 edit -t ktext "$f" &&
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echo "/* $(date) */" >>"$f" &&
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p4 submit -d "appending a line in p4"
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}
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# Create some files with RCS keywords. If they get modified
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# elsewhere then the version number gets bumped which then
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# results in a merge conflict if we touch the RCS kw lines,
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# even though the change itself would otherwise apply cleanly.
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test_expect_success 'cope with rcs keyword expansion damage' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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(cd "$cli" && p4_append_to_file kwfile1.c) &&
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old_lines=$(wc -l <kwfile1.c) &&
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perl -n -i -e "print unless m/Revision:/" kwfile1.c &&
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new_lines=$(wc -l <kwfile1.c) &&
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test $new_lines = $(($old_lines - 1)) &&
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git add kwfile1.c &&
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git commit -m "Zap an RCS kw line" &&
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git p4 submit &&
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git p4 rebase &&
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git diff p4/master &&
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git p4 commit &&
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echo "try modifying in both" &&
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cd "$cli" &&
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p4 edit kwfile1.c &&
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echo "line from p4" >>kwfile1.c &&
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p4 submit -d "add a line in p4" kwfile1.c &&
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cd "$git" &&
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echo "line from git at the top" | cat - kwfile1.c >kwfile1.c.new &&
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mv kwfile1.c.new kwfile1.c &&
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git commit -m "Add line in git at the top" kwfile1.c &&
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git p4 rebase &&
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git p4 submit
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)
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'
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test_expect_success 'cope with rcs keyword file deletion' '
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test_when_finished cleanup_git &&
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(
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cd "$cli" &&
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echo "\$Revision\$" >kwdelfile.c &&
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p4 add -t ktext kwdelfile.c &&
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p4 submit -d "Add file to be deleted" &&
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grep 1 kwdelfile.c
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) &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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grep Revision kwdelfile.c &&
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git rm -f kwdelfile.c &&
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git commit -m "Delete a file containing RCS keywords" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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git p4 submit
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) &&
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(
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cd "$cli" &&
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p4 sync &&
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! test -f kwdelfile.c
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)
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'
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# If you add keywords in git of the form $Header$ then everything should
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# work fine without any special handling.
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test_expect_success 'Add keywords in git which match the default p4 values' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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echo "NewKW: \$Revision\$" >>kwfile1.c &&
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git add kwfile1.c &&
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git commit -m "Adding RCS keywords in git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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git p4 submit
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) &&
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(
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cd "$cli" &&
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p4 sync &&
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test -f kwfile1.c &&
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grep "NewKW.*Revision.*[0-9]" kwfile1.c
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)
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'
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# If you add keywords in git of the form $Header:#1$ then things will fail
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# unless git-p4 takes steps to scrub the *git* commit.
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#
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test_expect_failure 'Add keywords in git which do not match the default p4 values' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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echo "NewKW2: \$Revision:1\$" >>kwfile1.c &&
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git add kwfile1.c &&
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git commit -m "Adding RCS keywords in git" &&
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git config git-p4.skipSubmitEdit true &&
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git config git-p4.attemptRCSCleanup true &&
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git p4 submit
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) &&
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(
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cd "$cli" &&
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p4 sync &&
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grep "NewKW2.*Revision.*[0-9]" kwfile1.c
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)
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'
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test_expect_success 'check cp1252 smart quote are preserved through RCS keyword processing' '
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test_when_finished cleanup_git &&
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git p4 clone --dest="$git" //depot &&
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(
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cd "$git" &&
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printf "$CP1252" >expect &&
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test_cmp_bin expect fileko_cp1252
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)
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'
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test_done
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