* jc/convert:
  convert: make it harder to screw up adding a conversion attribute
  convert: make it safer to add conversion attributes
  convert: give saner names to crlf/eol variables, types and functions
  convert: rename the "eol" global variable to "core_eol"
This commit is contained in:
Junio C Hamano 2011-05-16 16:47:16 -07:00
Родитель 7a77754cf6 3bfba20dae
Коммит fb53969686
4 изменённых файлов: 84 добавлений и 90 удалений

Просмотреть файл

@ -606,7 +606,7 @@ enum eol {
#endif
};
extern enum eol eol;
extern enum eol core_eol;
enum branch_track {
BRANCH_TRACK_UNSPECIFIED = -1,

Просмотреть файл

@ -583,7 +583,7 @@ static int git_default_core_config(const char *var, const char *value)
if (!strcmp(var, "core.autocrlf")) {
if (value && !strcasecmp(value, "input")) {
if (eol == EOL_CRLF)
if (core_eol == EOL_CRLF)
return error("core.autocrlf=input conflicts with core.eol=crlf");
auto_crlf = AUTO_CRLF_INPUT;
return 0;
@ -603,14 +603,14 @@ static int git_default_core_config(const char *var, const char *value)
if (!strcmp(var, "core.eol")) {
if (value && !strcasecmp(value, "lf"))
eol = EOL_LF;
core_eol = EOL_LF;
else if (value && !strcasecmp(value, "crlf"))
eol = EOL_CRLF;
core_eol = EOL_CRLF;
else if (value && !strcasecmp(value, "native"))
eol = EOL_NATIVE;
core_eol = EOL_NATIVE;
else
eol = EOL_UNSET;
if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
core_eol = EOL_UNSET;
if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
return error("core.autocrlf=input conflicts with core.eol=crlf");
return 0;
}

158
convert.c
Просмотреть файл

@ -12,7 +12,7 @@
* translation when the "text" attribute or "auto_crlf" option is set.
*/
enum action {
enum crlf_action {
CRLF_GUESS = -1,
CRLF_BINARY = 0,
CRLF_TEXT,
@ -94,9 +94,9 @@ static int is_binary(unsigned long size, struct text_stat *stats)
return 0;
}
static enum eol determine_output_conversion(enum action action)
static enum eol output_eol(enum crlf_action crlf_action)
{
switch (action) {
switch (crlf_action) {
case CRLF_BINARY:
return EOL_UNSET;
case CRLF_CRLF:
@ -113,19 +113,19 @@ static enum eol determine_output_conversion(enum action action)
return EOL_CRLF;
else if (auto_crlf == AUTO_CRLF_INPUT)
return EOL_LF;
else if (eol == EOL_UNSET)
else if (core_eol == EOL_UNSET)
return EOL_NATIVE;
}
return eol;
return core_eol;
}
static void check_safe_crlf(const char *path, enum action action,
static void check_safe_crlf(const char *path, enum crlf_action crlf_action,
struct text_stat *stats, enum safe_crlf checksafe)
{
if (!checksafe)
return;
if (determine_output_conversion(action) == EOL_LF) {
if (output_eol(crlf_action) == EOL_LF) {
/*
* CRLFs would not be restored by checkout:
* check if we'd remove CRLFs
@ -136,7 +136,7 @@ static void check_safe_crlf(const char *path, enum action action,
else /* i.e. SAFE_CRLF_FAIL */
die("CRLF would be replaced by LF in %s.", path);
}
} else if (determine_output_conversion(action) == EOL_CRLF) {
} else if (output_eol(crlf_action) == EOL_CRLF) {
/*
* CRLFs would be added by checkout:
* check if we have "naked" LFs
@ -188,18 +188,19 @@ 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, enum action action, enum safe_crlf checksafe)
struct strbuf *buf,
enum crlf_action crlf_action, enum safe_crlf checksafe)
{
struct text_stat stats;
char *dst;
if (action == CRLF_BINARY ||
(action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
if (crlf_action == CRLF_BINARY ||
(crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
return 0;
gather_stats(src, len, &stats);
if (action == CRLF_AUTO || action == CRLF_GUESS) {
if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
/*
* We're currently not going to even try to convert stuff
* that has bare CR characters. Does anybody do that crazy
@ -214,7 +215,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
if (is_binary(len, &stats))
return 0;
if (action == CRLF_GUESS) {
if (crlf_action == CRLF_GUESS) {
/*
* If the file in the index has any CR in it, do not convert.
* This is the new safer autocrlf handling.
@ -224,7 +225,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
}
}
check_safe_crlf(path, action, &stats, checksafe);
check_safe_crlf(path, crlf_action, &stats, checksafe);
/* Optimization: No CR? Nothing to convert, regardless. */
if (!stats.cr)
@ -234,7 +235,7 @@ 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_AUTO || action == CRLF_GUESS) {
if (crlf_action == CRLF_AUTO || crlf_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
@ -257,12 +258,12 @@ 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, enum action action)
struct strbuf *buf, enum crlf_action crlf_action)
{
char *to_free = NULL;
struct text_stat stats;
if (!len || determine_output_conversion(action) != EOL_CRLF)
if (!len || output_eol(crlf_action) != EOL_CRLF)
return 0;
gather_stats(src, len, &stats);
@ -275,8 +276,8 @@ static int crlf_to_worktree(const char *path, const char *src, size_t len,
if (stats.lf == stats.crlf)
return 0;
if (action == CRLF_AUTO || action == CRLF_GUESS) {
if (action == CRLF_GUESS) {
if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
if (crlf_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)
@ -474,30 +475,6 @@ static int read_convert_config(const char *var, const char *value, void *cb)
return 0;
}
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_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;
git_config(read_convert_config, NULL);
}
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)
{
/*
@ -715,7 +692,7 @@ static int git_path_check_ident(const char *path, struct git_attr_check *check)
return !!ATTR_TRUE(value);
}
static enum action determine_action(enum action text_attr, enum eol eol_attr)
static enum crlf_action input_crlf_action(enum crlf_action text_attr, enum eol eol_attr)
{
if (text_attr == CRLF_BINARY)
return CRLF_BINARY;
@ -726,66 +703,83 @@ static enum action determine_action(enum action text_attr, enum eol eol_attr)
return text_attr;
}
struct conv_attrs {
struct convert_driver *drv;
enum crlf_action crlf_action;
enum eol eol_attr;
int ident;
};
static const char *conv_attr_name[] = {
"crlf", "ident", "filter", "eol", "text",
};
#define NUM_CONV_ATTRS ARRAY_SIZE(conv_attr_name)
static void convert_attrs(struct conv_attrs *ca, const char *path)
{
int i;
static struct git_attr_check ccheck[NUM_CONV_ATTRS];
if (!ccheck[0].attr) {
for (i = 0; i < NUM_CONV_ATTRS; i++)
ccheck[i].attr = git_attr(conv_attr_name[i]);
user_convert_tail = &user_convert;
git_config(read_convert_config, NULL);
}
if (!git_checkattr(path, NUM_CONV_ATTRS, ccheck)) {
ca->crlf_action = git_path_check_crlf(path, ccheck + 4);
if (ca->crlf_action == CRLF_GUESS)
ca->crlf_action = git_path_check_crlf(path, ccheck + 0);
ca->ident = git_path_check_ident(path, ccheck + 1);
ca->drv = git_path_check_convert(path, ccheck + 2);
ca->eol_attr = git_path_check_eol(path, ccheck + 3);
} else {
ca->drv = NULL;
ca->crlf_action = CRLF_GUESS;
ca->eol_attr = EOL_UNSET;
ca->ident = 0;
}
}
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[5];
enum action action = CRLF_GUESS;
enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
int ret = 0;
const char *filter = NULL;
struct conv_attrs ca;
setup_convert_check(check);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
struct convert_driver *drv;
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;
}
convert_attrs(&ca, path);
if (ca.drv)
filter = ca.drv->clean;
ret |= apply_filter(path, src, len, dst, filter);
if (ret) {
src = dst->buf;
len = dst->len;
}
action = determine_action(action, eol_attr);
ret |= crlf_to_git(path, src, len, dst, action, checksafe);
ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
ret |= crlf_to_git(path, src, len, dst, ca.crlf_action, checksafe);
if (ret) {
src = dst->buf;
len = dst->len;
}
return ret | ident_to_git(path, src, len, dst, ident);
return ret | ident_to_git(path, src, len, dst, ca.ident);
}
static int convert_to_working_tree_internal(const char *path, const char *src,
size_t len, struct strbuf *dst,
int normalizing)
{
struct git_attr_check check[5];
enum action action = CRLF_GUESS;
enum eol eol_attr = EOL_UNSET;
int ident = 0, ret = 0;
int ret = 0;
const char *filter = NULL;
struct conv_attrs ca;
setup_convert_check(check);
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
struct convert_driver *drv;
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;
}
convert_attrs(&ca, path);
if (ca.drv)
filter = ca.drv->smudge;
ret |= ident_to_worktree(path, src, len, dst, ident);
ret |= ident_to_worktree(path, src, len, dst, ca.ident);
if (ret) {
src = dst->buf;
len = dst->len;
@ -795,8 +789,8 @@ static int convert_to_working_tree_internal(const char *path, const char *src,
* is a smudge filter. The filter might expect CRLFs.
*/
if (filter || !normalizing) {
action = determine_action(action, eol_attr);
ret |= crlf_to_worktree(path, src, len, dst, action);
ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
ret |= crlf_to_worktree(path, src, len, dst, ca.crlf_action);
if (ret) {
src = dst->buf;
len = dst->len;

Просмотреть файл

@ -43,7 +43,7 @@ const char *askpass_program;
const char *excludes_file;
enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
int read_replace_refs = 1;
enum eol eol = EOL_UNSET;
enum eol core_eol = EOL_UNSET;
enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;