#include "cache.h"
#include "attr.h"
#include "run-command.h"
+#include "quote.h"
/*
* convert.c - convert a file when checking it out and checking it in.
* translation when the "text" attribute or "auto_crlf" option is set.
*/
-enum action {
+enum crlf_action {
CRLF_GUESS = -1,
CRLF_BINARY = 0,
CRLF_TEXT,
CRLF_INPUT,
CRLF_CRLF,
- CRLF_AUTO,
+ CRLF_AUTO
};
struct text_stat {
return 0;
}
-static enum eol determine_output_conversion(enum action action) {
- switch (action) {
+static enum eol output_eol(enum crlf_action crlf_action)
+{
+ switch (crlf_action) {
case CRLF_BINARY:
return EOL_UNSET;
case CRLF_CRLF:
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
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
}
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
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.
}
}
- 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)
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
}
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);
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)
const char *src;
unsigned long size;
const char *cmd;
+ const char *path;
};
static int filter_buffer(int in, int out, void *data)
int write_err, status;
const char *argv[] = { NULL, NULL };
- argv[0] = params->cmd;
+ /* apply % substitution to cmd */
+ struct strbuf cmd = STRBUF_INIT;
+ struct strbuf path = STRBUF_INIT;
+ struct strbuf_expand_dict_entry dict[] = {
+ { "f", NULL, },
+ { NULL, NULL, },
+ };
+
+ /* quote the path to preserve spaces, etc. */
+ sq_quote_buf(&path, params->path);
+ dict[0].value = path.buf;
+
+ /* expand all %f with the quoted path */
+ strbuf_expand(&cmd, params->cmd, strbuf_expand_dict_cb, &dict);
+ strbuf_release(&path);
+
+ argv[0] = cmd.buf;
memset(&child_process, 0, sizeof(child_process));
child_process.argv = argv;
status = finish_command(&child_process);
if (status)
error("external filter %s failed %d", params->cmd, status);
+
+ strbuf_release(&cmd);
return (write_err || status);
}
params.src = src;
params.size = len;
params.cmd = cmd;
+ params.path = path;
fflush(NULL);
if (start_async(&async))
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)
{
/*
return !!ATTR_TRUE(value);
}
-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;
if (eol_attr == EOL_LF)
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);
}
-int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
+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;
}
- action = determine_action(action, eol_attr);
- ret |= crlf_to_worktree(path, src, len, dst, action);
+ /*
+ * CRLF conversion can be skipped if normalizing, unless there
+ * is a smudge filter. The filter might expect CRLFs.
+ */
+ if (filter || !normalizing) {
+ 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;
+ }
+ }
+ return ret | apply_filter(path, src, len, dst, filter);
+}
+
+int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst)
+{
+ return convert_to_working_tree_internal(path, src, len, dst, 0);
+}
+
+int renormalize_buffer(const char *path, const char *src, size_t len, struct strbuf *dst)
+{
+ int ret = convert_to_working_tree_internal(path, src, len, dst, 1);
if (ret) {
src = dst->buf;
len = dst->len;
}
- return ret | apply_filter(path, src, len, dst, filter);
+ return ret | convert_to_git(path, src, len, dst, 0);
}