based on the file's contents. See linkgit:gitattributes[5].
core.safecrlf::
- If true, makes git check if converting `CRLF` as controlled by
- `core.autocrlf` is reversible. Git will verify if a command
+ If true, makes git check if converting `CRLF` is reversible when
+ end-of-line conversion is active. Git will verify if a command
modifies a file in the work tree either directly or indirectly.
For example, committing a file followed by checking out the
same file should yield the original file in the work tree. If
`crlf`
^^^^^^
-This attribute controls the line-ending convention.
+This attribute enables and controls end-of-line normalization. When a
+text file is normalized, its line endings are converted to LF in the
+repository. To control what line ending style is used in the working
+directory, use the `eol` attribute for a single file and the
+`core.autocrlf` configuration variable for all text files.
Set::
- Setting the `crlf` attribute on a path is meant to mark
- the path as a "text" file. 'core.autocrlf' conversion
- takes place without guessing the content type by
- inspection.
+ Setting the `crlf` attribute on a path enables end-of-line
+ normalization and marks the path as a text file. End-of-line
+ conversion takes place without guessing the content type.
Unset::
Unsetting the `crlf` attribute on a path tells git not to
attempt any end-of-line conversion upon checkin or checkout.
+Set to string value "auto"::
+
+ When `crlf` is set to "auto", the path is marked for automatic
+ end-of-line normalization. If git decides that the content is
+ text, its line endings are normalized to LF on checkin.
+
Unspecified::
- Unspecified `crlf` attribute tells git to apply the
- `core.autocrlf` conversion when the file content looks
- like text.
+ If the `crlf` attribute is unspecified, git uses the `eol`
+ attribute and the `core.autocrlf` configuration variable to
+ determine if the file should be converted.
-Set to string value "input"::
+Any other value causes git to act as if `crlf` has been left
+unspecified.
- This is similar to setting the attribute to `true`, but
- also forces git to act as if `core.autocrlf` is set to
- `input` for the path.
+`eol`
+^^^^^
-Any other value set to `crlf` attribute is ignored and git acts
-as if the attribute is left unspecified.
+This attribute sets a specific line-ending style to be used in the
+working directory. It enables end-of-line normalization without any
+content checks, similar to setting the `crlf` attribute.
+Set to string value "crlf"::
-The `core.autocrlf` conversion
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ This setting forces git to normalize line endings on checkin
+ and convert them to CRLF when the file is checked out,
+ regardless of `crlf` and `core.autocrlf`.
+
+Set to string value "lf"::
+
+ This setting forces git to normalize line endings to LF on
+ checkin and prevents conversion to CRLF when the file is
+ checked out, regardless of `crlf` and `core.autocrlf`.
+ `crlf=input` is a backwards compatibility alias for `eol=lf`.
+
+End-of-line conversion
+^^^^^^^^^^^^^^^^^^^^^^
+
+While git normally leaves file contents alone, it can be configured to
+normalize line endings to LF in the repository and, optionally, to
+convert them to CRLF when files are checked out.
+
+Here is an example that will make git normalize .txt, .vcproj and .sh
+files, ensure that .vcproj files have CRLF and .sh files have LF in
+the working directory, and prevent .jpg files from being normalized
+regardless of their content.
+
+------------------------
+*.txt crlf
+*.vcproj eol=crlf
+*.sh eol=lf
+*.jpg -crlf
+------------------------
+
+Other source code management systems normalize all text files in their
+repositories, and there are two ways to enable similar automatic
+normalization in git.
+
+If you simply want to have CRLF line endings in your working directory
+regardless of the repository you are working with, you can set the
+config variable "core.autocrlf" without changing any attributes.
+
+------------------------
+[core]
+ autocrlf = true
+------------------------
+
+This does not force normalization of all text files, but does ensure
+that text files that you introduce to the repository have their line
+endings normalized to LF when they are added, and that files that are
+already normalized in the repository stay normalized. You can also
+set `autocrlf` to "input" to have automatic normalization of new text
+files without conversion to CRLF in the working directory.
+
+If you want to interoperate with a source code management system that
+enforces end-of-line normalization, or you simply want all text files
+in your repository to be normalized, you should instead set the `crlf`
+attribute to "auto" for _all_ files.
+
+------------------------
+* crlf=auto
+------------------------
+
+This ensures that all files that git considers to be text will have
+normalized (LF) line endings in the repository.
-If the configuration variable `core.autocrlf` is false, no
-conversion is done.
+NOTE: When `crlf=auto` normalization is enabled in an existing
+repository, any text files containing CRLFs should be normalized. If
+they are not they will be normalized the next time someone tries to
+change them, causing unfortunate misattribution. From a clean working
+directory:
-When `core.autocrlf` is true, it means that the platform wants
-CRLF line endings for files in the working tree, and you want to
-convert them back to the normal LF line endings when checking
-in to the repository.
+-------------------------------------------------
+$ echo "* crlf=auto" >>.gitattributes
+$ rm .git/index # Remove the index to force git to
+$ git reset # re-scan the working directory
+$ git status # Show files that will be normalized
+$ git add -u
+$ git add .gitattributes
+$ git commit -m "Introduce end-of-line normalization"
+-------------------------------------------------
-When `core.autocrlf` is set to "input", line endings are
-converted to LF upon checkin, but there is no conversion done
-upon checkout.
+If any files that should not be normalized show up in 'git status',
+unset their `crlf` attribute before running 'git add -u'.
+
+------------------------
+manual.pdf -crlf
+------------------------
+
+Conversely, text files that git does not detect can have normalization
+enabled manually.
+
+------------------------
+weirdchars.txt crlf
+------------------------
If `core.safecrlf` is set to "true" or "warn", git verifies if
the conversion is reversible for the current setting of
extern size_t packed_git_window_size;
extern size_t packed_git_limit;
extern size_t delta_base_cache_limit;
-extern int auto_crlf;
extern int read_replace_refs;
extern int fsync_object_files;
extern int core_preload_index;
extern enum safe_crlf safe_crlf;
+enum auto_crlf {
+ AUTO_CRLF_FALSE = 0,
+ AUTO_CRLF_TRUE = 1,
+ AUTO_CRLF_INPUT = -1,
+};
+
+extern enum auto_crlf auto_crlf;
+
enum branch_track {
BRANCH_TRACK_UNSPECIFIED = -1,
BRANCH_TRACK_NEVER = 0,
if (!strcmp(var, "core.autocrlf")) {
if (value && !strcasecmp(value, "input")) {
- auto_crlf = -1;
+ auto_crlf = AUTO_CRLF_INPUT;
return 0;
}
auto_crlf = git_config_bool(var, value);
* 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 "crlf" 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,
+};
+
+enum eol {
+ EOL_UNSET,
+ EOL_LF,
+ EOL_CRLF,
+};
struct text_stat {
/* NUL, CR, LF and CRLF counts */
return 0;
}
-static void check_safe_crlf(const char *path, int action,
+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 (action == CRLF_INPUT ||
+ (action == CRLF_GUESS && auto_crlf == AUTO_CRLF_INPUT)) {
/*
* 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 (auto_crlf > 0) {
+ } else if (action == CRLF_CRLF ||
+ (action == CRLF_GUESS && auto_crlf == AUTO_CRLF_TRUE)) {
/*
* 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, 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
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);
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
}
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)
+ (action != CRLF_CRLF && auto_crlf != AUTO_CRLF_TRUE))
return 0;
if (!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)
static void setup_convert_check(struct git_attr_check *check)
{
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) {
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;
check[0].attr = attr_crlf;
check[1].attr = attr_ident;
check[2].attr = attr_filter;
+ check[3].attr = attr_eol;
}
static int count_ident(const char *cp, unsigned long size)
;
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)
{
return !!ATTR_TRUE(value);
}
+enum action determine_action(enum action crlf_attr, enum eol eol_attr) {
+ if (crlf_attr == CRLF_BINARY)
+ return CRLF_BINARY;
+ if (eol_attr == EOL_LF)
+ return CRLF_INPUT;
+ if (eol_attr == EOL_CRLF)
+ return CRLF_CRLF;
+ return crlf_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[4];
+ enum action action = CRLF_GUESS;
+ enum eol eol = 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 + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
+ eol = git_path_check_eol(path, check + 3);
if (drv && drv->clean)
filter = drv->clean;
}
src = dst->buf;
len = dst->len;
}
- ret |= crlf_to_git(path, src, len, dst, crlf, checksafe);
+ action = determine_action(action, eol);
+ ret |= crlf_to_git(path, src, len, dst, action, checksafe);
if (ret) {
src = dst->buf;
len = dst->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[4];
+ enum action action = CRLF_GUESS;
+ enum eol eol = 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 + 0);
ident = git_path_check_ident(path, check + 1);
drv = git_path_check_convert(path, check + 2);
+ eol = git_path_check_eol(path, check + 3);
if (drv && drv->smudge)
filter = drv->smudge;
}
src = dst->buf;
len = dst->len;
}
- ret |= crlf_to_worktree(path, src, len, dst, crlf);
+ action = determine_action(action, eol);
+ ret |= crlf_to_worktree(path, src, len, dst, action);
if (ret) {
src = dst->buf;
len = dst->len;
int pager_use_color = 1;
const char *editor_program;
const char *excludes_file;
-int auto_crlf = 0; /* 1: both ways, -1: only when adding git objects */
+enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
int read_replace_refs = 1;
enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
test -z "$onediff" -a -z "$twodiff" -a -z "$threediff"
'
-test_expect_failure 'crlf=true causes a CRLF file to be normalized' '
+test_expect_success 'crlf=true causes a CRLF file to be normalized' '
rm -f .gitattributes tmp one two three &&
echo "two crlf" > .gitattributes &&
test -n "$twodiff"
'
-test_expect_failure 'eol=crlf gives a normalized file CRLFs with autocrlf=false' '
+test_expect_success 'eol=crlf gives a normalized file CRLFs with autocrlf=false' '
rm -f .gitattributes tmp one two three &&
git config core.autocrlf false &&
test -z "$onediff"
'
-test_expect_failure 'eol=crlf gives a normalized file CRLFs with autocrlf=input' '
+test_expect_success 'eol=crlf gives a normalized file CRLFs with autocrlf=input' '
rm -f .gitattributes tmp one two three &&
git config core.autocrlf input &&
test -z "$onediff"
'
-test_expect_failure 'eol=lf gives a normalized file LFs with autocrlf=true' '
+test_expect_success 'eol=lf gives a normalized file LFs with autocrlf=true' '
rm -f .gitattributes tmp one two three &&
git config core.autocrlf true &&
test -z "$onediff" -a -z "$twodiff" -a -z "$threediff"
'
-test_expect_failure 'crlf=auto, autocrlf=true _does_ normalize CRLF files' '
+test_expect_success 'crlf=auto, autocrlf=true _does_ normalize CRLF files' '
rm -f .gitattributes tmp one two three &&
git config core.autocrlf true &&
test -z "$threediff"
'
-test_expect_failure 'eol=crlf _does_ normalize binary files' '
+test_expect_success 'eol=crlf _does_ normalize binary files' '
rm -f .gitattributes tmp one two three &&
echo "three eol=crlf" > .gitattributes &&
projects / git.git / commitdiff