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https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
c4805393d7
Previously, autocrlf would only work well for normalized repositories. Any text files that contained CRLF in the repository would cause problems, and would be modified when handled with core.autocrlf set. Change autocrlf to not do any conversions to files that in the repository already contain a CR. git with autocrlf set will never create such a file, or change a LF only file to contain CRs, so the (new) assumption is that if a file contains a CR, it is intentional, and autocrlf should not change that. The following sequence should now always be a NOP even with autocrlf set (assuming a clean working directory): git checkout <something> touch * git add -A . (will add nothing) git commit (nothing to commit) Previously this would break for any text file containing a CR. Some of you may have been folowing Eyvind's excellent thread about trying to make end-of-line translation in git a bit smoother. I decided to attack the problem from a different angle: Is it possible to make autocrlf behave non-destructively for all the previous problem cases? Stealing the problem from Eyvind's initial mail (paraphrased and summarized a bit): 1. Setting autocrlf globally is a pain since autocrlf does not work well with CRLF in the repo 2. Setting it in individual repos is hard since you do it "too late" (the clone will get it wrong) 3. If someone checks in a file with CRLF later, you get into problems again 4. If a repository once has contained CRLF, you can't tell autocrlf at which commit everything is sane again 5. autocrlf does needless work if you know that all your users want the same EOL style. I belive that this patch makes autocrlf a safe (and good) default setting for Windows, and this solves problems 1-4 (it solves 2 by being set by default, which is early enough for clone). I implemented it by looking for CR charactes in the index, and aborting any conversion attempt if this is found. Signed-off-by: Finn Arne Gangstad <finag@pvv.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
510 lines
10 KiB
Bash
Executable file
510 lines
10 KiB
Bash
Executable file
#!/bin/sh
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test_description='CRLF conversion'
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. ./test-lib.sh
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has_cr() {
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tr '\015' Q <"$1" | grep Q >/dev/null
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}
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test_expect_success setup '
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git config core.autocrlf false &&
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for w in Hello world how are you; do echo $w; done >one &&
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mkdir dir &&
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for w in I am very very fine thank you; do echo $w; done >dir/two &&
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for w in Oh here is NULQin text here; do echo $w; done | q_to_nul >three &&
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git add . &&
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git commit -m initial &&
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one=`git rev-parse HEAD:one` &&
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dir=`git rev-parse HEAD:dir` &&
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two=`git rev-parse HEAD:dir/two` &&
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three=`git rev-parse HEAD:three` &&
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for w in Some extra lines here; do echo $w; done >>one &&
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git diff >patch.file &&
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patched=`git hash-object --stdin <one` &&
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git read-tree --reset -u HEAD &&
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echo happy.
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'
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test_expect_success 'safecrlf: autocrlf=input, all CRLF' '
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git config core.autocrlf input &&
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git config core.safecrlf true &&
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for w in I am all CRLF; do echo $w; done | append_cr >allcrlf &&
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test_must_fail git add allcrlf
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'
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test_expect_success 'safecrlf: autocrlf=input, mixed LF/CRLF' '
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git config core.autocrlf input &&
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git config core.safecrlf true &&
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for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
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test_must_fail git add mixed
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'
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test_expect_success 'safecrlf: autocrlf=true, all LF' '
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git config core.autocrlf true &&
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git config core.safecrlf true &&
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for w in I am all LF; do echo $w; done >alllf &&
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test_must_fail git add alllf
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'
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test_expect_success 'safecrlf: autocrlf=true mixed LF/CRLF' '
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git config core.autocrlf true &&
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git config core.safecrlf true &&
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for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
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test_must_fail git add mixed
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'
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test_expect_success 'safecrlf: print warning only once' '
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git config core.autocrlf input &&
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git config core.safecrlf warn &&
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for w in I am all LF; do echo $w; done >doublewarn &&
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git add doublewarn &&
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git commit -m "nowarn" &&
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for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >doublewarn &&
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test $(git add doublewarn 2>&1 | grep "CRLF will be replaced by LF" | wc -l) = 1
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'
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test_expect_success 'switch off autocrlf, safecrlf, reset HEAD' '
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git config core.autocrlf false &&
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git config core.safecrlf false &&
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git reset --hard HEAD^
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'
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test_expect_success 'update with autocrlf=input' '
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rm -f tmp one dir/two three &&
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git read-tree --reset -u HEAD &&
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git config core.autocrlf input &&
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for f in one dir/two
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do
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append_cr <$f >tmp && mv -f tmp $f &&
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git update-index -- $f || {
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echo Oops
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false
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break
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}
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done &&
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differs=`git diff-index --cached HEAD` &&
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test -z "$differs" || {
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echo Oops "$differs"
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false
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}
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'
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test_expect_success 'update with autocrlf=true' '
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rm -f tmp one dir/two three &&
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git read-tree --reset -u HEAD &&
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git config core.autocrlf true &&
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for f in one dir/two
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do
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append_cr <$f >tmp && mv -f tmp $f &&
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git update-index -- $f || {
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echo "Oops $f"
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false
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break
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}
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done &&
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differs=`git diff-index --cached HEAD` &&
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test -z "$differs" || {
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echo Oops "$differs"
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false
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}
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'
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test_expect_success 'checkout with autocrlf=true' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf true &&
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git read-tree --reset -u HEAD &&
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for f in one dir/two
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do
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remove_cr <"$f" >tmp && mv -f tmp $f &&
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git update-index -- $f || {
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echo "Eh? $f"
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false
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break
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}
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done &&
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test "$one" = `git hash-object --stdin <one` &&
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test "$two" = `git hash-object --stdin <dir/two` &&
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differs=`git diff-index --cached HEAD` &&
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test -z "$differs" || {
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echo Oops "$differs"
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false
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}
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'
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test_expect_success 'checkout with autocrlf=input' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf input &&
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git read-tree --reset -u HEAD &&
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for f in one dir/two
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do
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if has_cr "$f"
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then
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echo "Eh? $f"
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false
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break
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else
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git update-index -- $f
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fi
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done &&
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test "$one" = `git hash-object --stdin <one` &&
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test "$two" = `git hash-object --stdin <dir/two` &&
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differs=`git diff-index --cached HEAD` &&
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test -z "$differs" || {
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echo Oops "$differs"
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false
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}
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'
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test_expect_success 'apply patch (autocrlf=input)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf input &&
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git read-tree --reset -u HEAD &&
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git apply patch.file &&
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test "$patched" = "`git hash-object --stdin <one`" || {
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echo "Eh? apply without index"
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false
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}
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'
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test_expect_success 'apply patch --cached (autocrlf=input)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf input &&
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git read-tree --reset -u HEAD &&
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git apply --cached patch.file &&
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test "$patched" = `git rev-parse :one` || {
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echo "Eh? apply with --cached"
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false
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}
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'
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test_expect_success 'apply patch --index (autocrlf=input)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf input &&
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git read-tree --reset -u HEAD &&
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git apply --index patch.file &&
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test "$patched" = `git rev-parse :one` &&
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test "$patched" = `git hash-object --stdin <one` || {
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echo "Eh? apply with --index"
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false
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}
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'
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test_expect_success 'apply patch (autocrlf=true)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf true &&
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git read-tree --reset -u HEAD &&
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git apply patch.file &&
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test "$patched" = "`remove_cr <one | git hash-object --stdin`" || {
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echo "Eh? apply without index"
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false
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}
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'
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test_expect_success 'apply patch --cached (autocrlf=true)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf true &&
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git read-tree --reset -u HEAD &&
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git apply --cached patch.file &&
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test "$patched" = `git rev-parse :one` || {
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echo "Eh? apply without index"
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false
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}
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'
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test_expect_success 'apply patch --index (autocrlf=true)' '
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rm -f tmp one dir/two three &&
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git config core.autocrlf true &&
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git read-tree --reset -u HEAD &&
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git apply --index patch.file &&
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test "$patched" = `git rev-parse :one` &&
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test "$patched" = "`remove_cr <one | git hash-object --stdin`" || {
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echo "Eh? apply with --index"
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false
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}
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'
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test_expect_success '.gitattributes says two is binary' '
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rm -f tmp one dir/two three &&
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echo "two -crlf" >.gitattributes &&
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git config core.autocrlf true &&
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git read-tree --reset -u HEAD &&
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if has_cr dir/two
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then
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echo "Huh?"
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false
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else
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: happy
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fi &&
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if has_cr one
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then
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: happy
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else
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echo "Huh?"
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false
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fi &&
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if has_cr three
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then
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echo "Huh?"
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false
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else
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: happy
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fi
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'
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test_expect_success '.gitattributes says two is input' '
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rm -f tmp one dir/two three &&
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echo "two crlf=input" >.gitattributes &&
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git read-tree --reset -u HEAD &&
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if has_cr dir/two
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then
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echo "Huh?"
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false
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else
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: happy
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fi
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'
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test_expect_success '.gitattributes says two and three are text' '
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rm -f tmp one dir/two three &&
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echo "t* crlf" >.gitattributes &&
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git read-tree --reset -u HEAD &&
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if has_cr dir/two
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then
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: happy
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else
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echo "Huh?"
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false
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fi &&
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if has_cr three
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then
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: happy
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else
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echo "Huh?"
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false
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fi
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'
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test_expect_success 'in-tree .gitattributes (1)' '
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echo "one -crlf" >>.gitattributes &&
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git add .gitattributes &&
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git commit -m "Add .gitattributes" &&
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rm -rf tmp one dir .gitattributes patch.file three &&
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git read-tree --reset -u HEAD &&
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if has_cr one
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then
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echo "Eh? one should not have CRLF"
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false
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else
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: happy
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fi &&
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has_cr three || {
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echo "Eh? three should still have CRLF"
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false
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}
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'
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test_expect_success 'in-tree .gitattributes (2)' '
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rm -rf tmp one dir .gitattributes patch.file three &&
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git read-tree --reset HEAD &&
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git checkout-index -f -q -u -a &&
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if has_cr one
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then
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echo "Eh? one should not have CRLF"
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false
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else
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: happy
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fi &&
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has_cr three || {
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echo "Eh? three should still have CRLF"
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false
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}
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'
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test_expect_success 'in-tree .gitattributes (3)' '
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rm -rf tmp one dir .gitattributes patch.file three &&
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git read-tree --reset HEAD &&
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git checkout-index -u .gitattributes &&
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git checkout-index -u one dir/two three &&
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if has_cr one
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then
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echo "Eh? one should not have CRLF"
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false
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else
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: happy
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fi &&
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has_cr three || {
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echo "Eh? three should still have CRLF"
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false
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}
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'
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test_expect_success 'in-tree .gitattributes (4)' '
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rm -rf tmp one dir .gitattributes patch.file three &&
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git read-tree --reset HEAD &&
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git checkout-index -u one dir/two three &&
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git checkout-index -u .gitattributes &&
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if has_cr one
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then
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echo "Eh? one should not have CRLF"
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false
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else
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: happy
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fi &&
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has_cr three || {
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echo "Eh? three should still have CRLF"
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false
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}
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'
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test_expect_success 'checkout with existing .gitattributes' '
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git config core.autocrlf true &&
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git config --unset core.safecrlf &&
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echo ".file2 -crlfQ" | q_to_cr >> .gitattributes &&
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git add .gitattributes &&
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git commit -m initial &&
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echo ".file -crlfQ" | q_to_cr >> .gitattributes &&
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echo "contents" > .file &&
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git add .gitattributes .file &&
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git commit -m second &&
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git checkout master~1 &&
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git checkout master &&
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test "$(git diff-files --raw)" = ""
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'
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test_expect_success 'checkout when deleting .gitattributes' '
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git rm .gitattributes &&
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echo "contentsQ" | q_to_cr > .file2 &&
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git add .file2 &&
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git commit -m third
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git checkout master~1 &&
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git checkout master &&
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has_cr .file2
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'
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test_expect_success 'invalid .gitattributes (must not crash)' '
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echo "three +crlf" >>.gitattributes &&
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git diff
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'
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# Some more tests here to add new autocrlf functionality.
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# We want to have a known state here, so start a bit from scratch
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test_expect_success 'setting up for new autocrlf tests' '
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git config core.autocrlf false &&
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git config core.safecrlf false &&
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rm -rf .????* * &&
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for w in I am all LF; do echo $w; done >alllf &&
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for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
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for w in I am all CRLF; do echo $w; done | append_cr >allcrlf &&
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git add -A . &&
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git commit -m "alllf, allcrlf and mixed only" &&
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git tag -a -m "message" autocrlf-checkpoint
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'
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test_expect_success 'report no change after setting autocrlf' '
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git config core.autocrlf true &&
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touch * &&
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git diff --exit-code
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'
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test_expect_success 'files are clean after checkout' '
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rm * &&
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git checkout -f &&
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git diff --exit-code
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'
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cr_to_Q_no_NL () {
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tr '\015' Q | tr -d '\012'
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}
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test_expect_success 'LF only file gets CRLF with autocrlf' '
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test "$(cr_to_Q_no_NL < alllf)" = "IQamQallQLFQ"
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'
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test_expect_success 'Mixed file is still mixed with autocrlf' '
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test "$(cr_to_Q_no_NL < mixed)" = "OhhereisCRLFQintext"
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'
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test_expect_success 'CRLF only file has CRLF with autocrlf' '
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test "$(cr_to_Q_no_NL < allcrlf)" = "IQamQallQCRLFQ"
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'
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test_expect_success 'New CRLF file gets LF in repo' '
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tr -d "\015" < alllf | append_cr > alllf2 &&
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git add alllf2 &&
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git commit -m "alllf2 added" &&
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git config core.autocrlf false &&
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rm * &&
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git checkout -f &&
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test_cmp alllf alllf2
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'
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test_done
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