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authorJunio C Hamano <gitster@pobox.com>2010-06-21 13:02:49 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-06-21 13:02:49 (GMT)
commitd5cff17edaf438bbf45a2130e9cadc0c938291d6 (patch)
tree19acab3f0fbb8fa480cb45a315d0dac2e6f16ab1 /convert.c
parentd249515f297d47df6d79167b988eaa7db0981178 (diff)
parent942e7747678ecf5f118ea5b2d0c763166de21f3a (diff)
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Merge branch 'eb/core-eol'
* eb/core-eol: Add "core.eol" config variable Rename the "crlf" attribute "text" Add per-repository eol normalization Add tests for per-repository eol normalization Conflicts: Documentation/config.txt Makefile
Diffstat (limited to 'convert.c')
-rw-r--r--convert.c150
1 files changed, 110 insertions, 40 deletions
diff --git a/convert.c b/convert.c
index 64dce3f..e41a31e 100644
--- a/convert.c
+++ b/convert.c
@@ -8,13 +8,17 @@
* This should use the pathname to decide on whether it wants to do some
* more interesting conversions (automatic gzip/unzip, general format
* conversions etc etc), but by default it just does automatic CRLF<->LF
- * translation when the "auto_crlf" option is set.
+ * translation when the "text" attribute or "auto_crlf" option is set.
*/
-#define CRLF_GUESS (-1)
-#define CRLF_BINARY 0
-#define CRLF_TEXT 1
-#define CRLF_INPUT 2
+enum action {
+ CRLF_GUESS = -1,
+ CRLF_BINARY = 0,
+ CRLF_TEXT,
+ CRLF_INPUT,
+ CRLF_CRLF,
+ CRLF_AUTO,
+};
struct text_stat {
/* NUL, CR, LF and CRLF counts */
@@ -89,31 +93,55 @@ static int is_binary(unsigned long size, struct text_stat *stats)
return 0;
}
-static void check_safe_crlf(const char *path, int action,
+static enum eol determine_output_conversion(enum action action) {
+ switch (action) {
+ case CRLF_BINARY:
+ return EOL_UNSET;
+ case CRLF_CRLF:
+ return EOL_CRLF;
+ case CRLF_INPUT:
+ return EOL_LF;
+ case CRLF_GUESS:
+ if (!auto_crlf)
+ return EOL_UNSET;
+ /* fall through */
+ case CRLF_TEXT:
+ case CRLF_AUTO:
+ if (auto_crlf == AUTO_CRLF_TRUE)
+ return EOL_CRLF;
+ else if (auto_crlf == AUTO_CRLF_INPUT)
+ return EOL_LF;
+ else if (eol == EOL_UNSET)
+ return EOL_NATIVE;
+ }
+ return eol;
+}
+
+static void check_safe_crlf(const char *path, enum action action,
struct text_stat *stats, enum safe_crlf checksafe)
{
if (!checksafe)
return;
- if (action == CRLF_INPUT || auto_crlf <= 0) {
+ if (determine_output_conversion(action) == EOL_LF) {
/*
* CRLFs would not be restored by checkout:
* check if we'd remove CRLFs
*/
if (stats->crlf) {
if (checksafe == SAFE_CRLF_WARN)
- warning("CRLF will be replaced by LF in %s.", path);
+ 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 (auto_crlf > 0) {
+ } else if (determine_output_conversion(action) == EOL_CRLF) {
/*
* CRLFs would be added by checkout:
* check if we have "naked" LFs
*/
if (stats->lf != stats->crlf) {
if (checksafe == SAFE_CRLF_WARN)
- warning("LF will be replaced by CRLF in %s", path);
+ 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);
}
@@ -158,17 +186,18 @@ static int has_cr_in_index(const char *path)
}
static int crlf_to_git(const char *path, const char *src, size_t len,
- struct strbuf *buf, int action, enum safe_crlf checksafe)
+ struct strbuf *buf, enum action action, enum safe_crlf checksafe)
{
struct text_stat stats;
char *dst;
- if ((action == CRLF_BINARY) || !auto_crlf || !len)
+ if (action == CRLF_BINARY ||
+ (action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
return 0;
gather_stats(src, len, &stats);
- if (action == CRLF_GUESS) {
+ if (action == CRLF_AUTO || action == CRLF_GUESS) {
/*
* We're currently not going to even try to convert stuff
* that has bare CR characters. Does anybody do that crazy
@@ -183,12 +212,14 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
if (is_binary(len, &stats))
return 0;
- /*
- * If the file in the index has any CR in it, do not convert.
- * This is the new safer autocrlf handling.
- */
- if (has_cr_in_index(path))
- return 0;
+ if (action == CRLF_GUESS) {
+ /*
+ * If the file in the index has any CR in it, do not convert.
+ * This is the new safer autocrlf handling.
+ */
+ if (has_cr_in_index(path))
+ return 0;
+ }
}
check_safe_crlf(path, action, &stats, checksafe);
@@ -201,7 +232,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
if (strbuf_avail(buf) + buf->len < len)
strbuf_grow(buf, len - buf->len);
dst = buf->buf;
- if (action == CRLF_GUESS) {
+ if (action == CRLF_AUTO || action == CRLF_GUESS) {
/*
* If we guessed, we already know we rejected a file with
* lone CR, and we can strip a CR without looking at what
@@ -224,16 +255,12 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
}
static int crlf_to_worktree(const char *path, const char *src, size_t len,
- struct strbuf *buf, int action)
+ struct strbuf *buf, enum action action)
{
char *to_free = NULL;
struct text_stat stats;
- if ((action == CRLF_BINARY) || (action == CRLF_INPUT) ||
- auto_crlf <= 0)
- return 0;
-
- if (!len)
+ if (!len || determine_output_conversion(action) != EOL_CRLF)
return 0;
gather_stats(src, len, &stats);
@@ -246,11 +273,13 @@ static int crlf_to_worktree(const char *path, const char *src, size_t len,
if (stats.lf == stats.crlf)
return 0;
- if (action == CRLF_GUESS) {
- /* If we have any CR or CRLF line endings, we do not touch it */
- /* This is the new safer autocrlf-handling */
- if (stats.cr > 0 || stats.crlf > 0)
- return 0;
+ if (action == CRLF_AUTO || action == CRLF_GUESS) {
+ if (action == CRLF_GUESS) {
+ /* If we have any CR or CRLF line endings, we do not touch it */
+ /* This is the new safer autocrlf-handling */
+ if (stats.cr > 0 || stats.crlf > 0)
+ return 0;
+ }
/* If we have any bare CR characters, we're not going to touch it */
if (stats.cr != stats.crlf)
@@ -425,12 +454,16 @@ static int read_convert_config(const char *var, const char *value, void *cb)
static void setup_convert_check(struct git_attr_check *check)
{
+ static struct git_attr *attr_text;
static struct git_attr *attr_crlf;
+ static struct git_attr *attr_eol;
static struct git_attr *attr_ident;
static struct git_attr *attr_filter;
- if (!attr_crlf) {
+ if (!attr_text) {
+ attr_text = git_attr("text");
attr_crlf = git_attr("crlf");
+ attr_eol = git_attr("eol");
attr_ident = git_attr("ident");
attr_filter = git_attr("filter");
user_convert_tail = &user_convert;
@@ -439,6 +472,8 @@ static void setup_convert_check(struct git_attr_check *check)
check[0].attr = attr_crlf;
check[1].attr = attr_ident;
check[2].attr = attr_filter;
+ check[3].attr = attr_eol;
+ check[4].attr = attr_text;
}
static int count_ident(const char *cp, unsigned long size)
@@ -619,9 +654,24 @@ static int git_path_check_crlf(const char *path, struct git_attr_check *check)
;
else if (!strcmp(value, "input"))
return CRLF_INPUT;
+ else if (!strcmp(value, "auto"))
+ return CRLF_AUTO;
return CRLF_GUESS;
}
+static int git_path_check_eol(const char *path, struct git_attr_check *check)
+{
+ const char *value = check->value;
+
+ if (ATTR_UNSET(value))
+ ;
+ else if (!strcmp(value, "lf"))
+ return EOL_LF;
+ else if (!strcmp(value, "crlf"))
+ return EOL_CRLF;
+ return EOL_UNSET;
+}
+
static struct convert_driver *git_path_check_convert(const char *path,
struct git_attr_check *check)
{
@@ -643,20 +693,34 @@ static int git_path_check_ident(const char *path, struct git_attr_check *check)
return !!ATTR_TRUE(value);
}
+enum action determine_action(enum action text_attr, enum eol eol_attr) {
+ if (text_attr == CRLF_BINARY)
+ return CRLF_BINARY;
+ if (eol_attr == EOL_LF)
+ return CRLF_INPUT;
+ if (eol_attr == EOL_CRLF)
+ return CRLF_CRLF;
+ return text_attr;
+}
+
int convert_to_git(const char *path, const char *src, size_t len,
struct strbuf *dst, enum safe_crlf checksafe)
{
- struct git_attr_check check[3];
- int crlf = CRLF_GUESS;
+ struct git_attr_check check[5];
+ enum action action = CRLF_GUESS;
+ enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
const char *filter = NULL;
setup_convert_check(check);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
struct convert_driver *drv;
- crlf = git_path_check_crlf(path, check + 0);
+ action = git_path_check_crlf(path, check + 4);
+ if (action == CRLF_GUESS)
+ action = git_path_check_crlf(path, check + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
+ eol_attr = git_path_check_eol(path, check + 3);
if (drv && drv->clean)
filter = drv->clean;
}
@@ -666,7 +730,8 @@ int convert_to_git(const char *path, const char *src, size_t len,
src = dst->buf;
len = dst->len;
}
- ret |= crlf_to_git(path, src, len, dst, crlf, checksafe);
+ action = determine_action(action, eol_attr);
+ ret |= crlf_to_git(path, src, len, dst, action, checksafe);
if (ret) {
src = dst->buf;
len = dst->len;
@@ -676,17 +741,21 @@ int convert_to_git(const char *path, const char *src, size_t len,
int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
{
- struct git_attr_check check[3];
- int crlf = CRLF_GUESS;
+ struct git_attr_check check[5];
+ enum action action = CRLF_GUESS;
+ enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
const char *filter = NULL;
setup_convert_check(check);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
struct convert_driver *drv;
- crlf = git_path_check_crlf(path, check + 0);
+ action = git_path_check_crlf(path, check + 4);
+ if (action == CRLF_GUESS)
+ action = git_path_check_crlf(path, check + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
+ eol_attr = git_path_check_eol(path, check + 3);
if (drv && drv->smudge)
filter = drv->smudge;
}
@@ -696,7 +765,8 @@ int convert_to_working_tree(const char *path, const char *src, size_t len, struc
src = dst->buf;
len = dst->len;
}
- ret |= crlf_to_worktree(path, src, len, dst, crlf);
+ action = determine_action(action, eol_attr);
+ ret |= crlf_to_worktree(path, src, len, dst, action);
if (ret) {
src = dst->buf;
len = dst->len;