From: Torsten Bögershausen <tboegi@xxxxxx>
When the "new safer autocrlf-handling" was introduced in c4805393, the logic
around check_safe_crlf() should have been changed:
Once a file has been commited with CRLF (and core.autocrlf is true),
line endings are no longer converted by "git add" or "git checkout".
The line endings will not normalized by Git.
The user may run e.g. dos2unix and commit the file.
Factor out will_convert_lf_to_crlf() which returns when LF are converted
into CRLF at checkout.
Update the logic around check_safe_crlf() and do the possible CRLF-LF
conversion in "git add".
Simulate the checkout (and a possible LF-CRLF conversion) with help of
will_convert_lf_to_crlf().
---
convert.c | 97 ++++++++++++++++++++++++++++++----------------------
t/t0027-auto-crlf.sh | 6 ++--
2 files changed, 60 insertions(+), 43 deletions(-)
diff --git a/convert.c b/convert.c
index 67d69b5..077f5e6 100644
--- a/convert.c
+++ b/convert.c
@@ -189,33 +189,25 @@ static enum eol output_eol(enum crlf_action crlf_action)
}
static void check_safe_crlf(const char *path, enum crlf_action crlf_action,
- struct text_stat *stats, enum safe_crlf checksafe)
+ struct text_stat *old_stats, struct text_stat *new_stats,
+ enum safe_crlf checksafe)
{
- if (!checksafe)
- return;
-
- if (output_eol(crlf_action) == EOL_LF) {
+ if (old_stats->crlf && !new_stats->crlf ) {
/*
- * CRLFs would not be restored by checkout:
- * check if we'd remove CRLFs
+ * CRLFs would not be restored by checkout
*/
- if (stats->crlf) {
- if (checksafe == SAFE_CRLF_WARN)
- warning("CRLF will be replaced by LF in %s.\nThe file will have its original line endings in your working directory.", path);
- else /* i.e. SAFE_CRLF_FAIL */
- die("CRLF would be replaced by LF in %s.", path);
- }
- } else if (output_eol(crlf_action) == EOL_CRLF) {
+ if (checksafe == SAFE_CRLF_WARN)
+ warning("CRLF will be replaced by LF in %s.\nThe file will have its original line endings in your working directory.", path);
+ else /* i.e. SAFE_CRLF_FAIL */
+ die("CRLF would be replaced by LF in %s.", path);
+ } else if (old_stats->lonelf && !new_stats->lonelf ) {
/*
- * CRLFs would be added by checkout:
- * check if we have "naked" LFs
+ * CRLFs would be added by checkout
*/
- if (stats->lonelf) {
- if (checksafe == SAFE_CRLF_WARN)
- warning("LF will be replaced by CRLF in %s.\nThe file will have its original line endings in your working directory.", path);
- else /* i.e. SAFE_CRLF_FAIL */
- die("LF would be replaced by CRLF in %s", path);
- }
+ if (checksafe == SAFE_CRLF_WARN)
+ warning("LF will be replaced by CRLF in %s.\nThe file will have its original line endings in your working directory.", path);
+ else /* i.e. SAFE_CRLF_FAIL */
+ die("LF would be replaced by CRLF in %s", path);
}
}
@@ -233,12 +225,35 @@ static int has_cr_in_index(const char *path)
return has_cr;
}
+static int will_convert_lf_to_crlf(size_t len, struct text_stat *stats,
+ enum crlf_action crlf_action)
+{
+ if (output_eol(crlf_action) != EOL_CRLF)
+ return 0;
+ /* No "naked" LF? Nothing to convert, regardless. */
+ if (!stats->lonelf)
+ return 0;
+
+ if (crlf_action == CRLF_AUTO || crlf_action == CRLF_AUTO_INPUT || crlf_action == CRLF_AUTO_CRLF) {
+ /* If we have any CR or CRLF line endings, we do not touch it */
+ /* This is the new safer autocrlf-handling */
+ if (stats->lonecr || stats->crlf)
+ return 0;
+
+ if (convert_is_binary(len, stats))
+ return 0;
+ }
+ return 1;
+
+}
+
static int crlf_to_git(const char *path, const char *src, size_t len,
struct strbuf *buf,
enum crlf_action crlf_action, enum safe_crlf checksafe)
{
struct text_stat stats;
char *dst;
+ int convert_crlf_into_lf;
if (crlf_action == CRLF_BINARY ||
(src && !len))
@@ -252,6 +267,8 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
return 1;
gather_stats(src, len, &stats);
+ /* Optimization: No CRLF? Nothing to convert, regardless. */
+ convert_crlf_into_lf = !!stats.crlf;
if (crlf_action == CRLF_AUTO || crlf_action == CRLF_AUTO_INPUT || crlf_action == CRLF_AUTO_CRLF) {
if (convert_is_binary(len, &stats))
@@ -263,12 +280,24 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
if (checksafe == SAFE_CRLF_RENORMALIZE)
checksafe = SAFE_CRLF_FALSE;
else if (has_cr_in_index(path))
- return 0;
+ convert_crlf_into_lf = 0;
}
- check_safe_crlf(path, crlf_action, &stats, checksafe);
-
- /* Optimization: No CRLF? Nothing to convert, regardless. */
- if (!stats.crlf)
+ if (checksafe && len) {
+ struct text_stat new_stats;
+ memcpy(&new_stats, &stats, sizeof(new_stats));
+ /* simulate "git add" */
+ if (convert_crlf_into_lf) {
+ new_stats.lonelf += new_stats.crlf;
+ new_stats.crlf = 0;
+ }
+ /* simulate "git checkout" */
+ if (will_convert_lf_to_crlf(len, &new_stats, crlf_action)) {
+ new_stats.crlf += new_stats.lonelf;
+ new_stats.lonelf = 0;
+ }
+ check_safe_crlf(path, crlf_action, &stats, &new_stats, checksafe);
+ }
+ if (!convert_crlf_into_lf)
return 0;
/*
@@ -314,21 +343,9 @@ static int crlf_to_worktree(const char *path, const char *src, size_t len,
return 0;
gather_stats(src, len, &stats);
-
- /* No "naked" LF? Nothing to convert, regardless. */
- if (!stats.lonelf)
+ if (!will_convert_lf_to_crlf(len, &stats, crlf_action))
return 0;
- if (crlf_action == CRLF_AUTO || crlf_action == CRLF_AUTO_INPUT || crlf_action == CRLF_AUTO_CRLF) {
- /* If we have any CR or CRLF line endings, we do not touch it */
- /* This is the new safer autocrlf-handling */
- if (stats.lonecr || stats.crlf )
- return 0;
-
- if (convert_is_binary(len, &stats))
- return 0;
- }
-
/* are we "faking" in place editing ? */
if (src == buf->buf)
to_free = strbuf_detach(buf, NULL);
diff --git a/t/t0027-auto-crlf.sh b/t/t0027-auto-crlf.sh
index ab6e962..7de8364 100755
--- a/t/t0027-auto-crlf.sh
+++ b/t/t0027-auto-crlf.sh
@@ -393,11 +393,11 @@ test_expect_success 'commit files attr=crlf' '
# attr LF CRLF CRLFmixLF LF_mix_CR CRLFNUL
commit_chk_wrnNNO "" "" false "" "" "" "" ""
-commit_chk_wrnNNO "" "" true "" "" "" "" ""
+commit_chk_wrnNNO "" "" true LF_CRLF "" "" "" ""
commit_chk_wrnNNO "" "" input "" "" "" "" ""
commit_chk_wrnNNO "auto" "" false "" "" "" "" ""
-commit_chk_wrnNNO "auto" "" true "" "" "" "" ""
+commit_chk_wrnNNO "auto" "" true LF_CRLF "" "" "" ""
commit_chk_wrnNNO "auto" "" input "" "" "" "" ""
for crlf in true false input
do
@@ -407,7 +407,7 @@ do
commit_chk_wrnNNO "" lf $crlf "" CRLF_LF CRLF_LF "" CRLF_LF
commit_chk_wrnNNO "" crlf $crlf LF_CRLF "" LF_CRLF LF_CRLF ""
commit_chk_wrnNNO auto lf $crlf "" "" "" "" ""
- commit_chk_wrnNNO auto crlf $crlf "" "" "" "" ""
+ commit_chk_wrnNNO auto crlf $crlf LF_CRLF "" "" "" ""
commit_chk_wrnNNO text lf $crlf "" CRLF_LF CRLF_LF "" CRLF_LF
commit_chk_wrnNNO text crlf $crlf LF_CRLF "" LF_CRLF LF_CRLF ""
done
--
2.0.0.rc1.6318.g0c2c796
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