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Diffstat (limited to 'entry.c')
-rw-r--r--entry.c103
1 files changed, 59 insertions, 44 deletions
diff --git a/entry.c b/entry.c
index 17a6bccec6..77c6882624 100644
--- a/entry.c
+++ b/entry.c
@@ -44,33 +44,33 @@ static void create_directories(const char *path, int path_len,
free(buf);
}
-static void remove_subtree(const char *path)
+static void remove_subtree(struct strbuf *path)
{
- DIR *dir = opendir(path);
+ DIR *dir = opendir(path->buf);
struct dirent *de;
- char pathbuf[PATH_MAX];
- char *name;
+ int origlen = path->len;
if (!dir)
- die_errno("cannot opendir '%s'", path);
- strcpy(pathbuf, path);
- name = pathbuf + strlen(path);
- *name++ = '/';
+ die_errno("cannot opendir '%s'", path->buf);
while ((de = readdir(dir)) != NULL) {
struct stat st;
+
if (is_dot_or_dotdot(de->d_name))
continue;
- strcpy(name, de->d_name);
- if (lstat(pathbuf, &st))
- die_errno("cannot lstat '%s'", pathbuf);
+
+ strbuf_addch(path, '/');
+ strbuf_addstr(path, de->d_name);
+ if (lstat(path->buf, &st))
+ die_errno("cannot lstat '%s'", path->buf);
if (S_ISDIR(st.st_mode))
- remove_subtree(pathbuf);
- else if (unlink(pathbuf))
- die_errno("cannot unlink '%s'", pathbuf);
+ remove_subtree(path);
+ else if (unlink(path->buf))
+ die_errno("cannot unlink '%s'", path->buf);
+ strbuf_setlen(path, origlen);
}
closedir(dir);
- if (rmdir(path))
- die_errno("cannot rmdir '%s'", path);
+ if (rmdir(path->buf))
+ die_errno("cannot rmdir '%s'", path->buf);
}
static int create_file(const char *path, unsigned int mode)
@@ -79,7 +79,7 @@ static int create_file(const char *path, unsigned int mode)
return open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
}
-static void *read_blob_entry(struct cache_entry *ce, unsigned long *size)
+static void *read_blob_entry(const struct cache_entry *ce, unsigned long *size)
{
enum object_type type;
void *new = read_sha1_file(ce->sha1, &type, size);
@@ -92,7 +92,7 @@ static void *read_blob_entry(struct cache_entry *ce, unsigned long *size)
return NULL;
}
-static int open_output_fd(char *path, struct cache_entry *ce, int to_tempfile)
+static int open_output_fd(char *path, const struct cache_entry *ce, int to_tempfile)
{
int symlink = (ce->ce_mode & S_IFMT) != S_IFREG;
if (to_tempfile) {
@@ -115,26 +115,29 @@ static int fstat_output(int fd, const struct checkout *state, struct stat *st)
return 0;
}
-static int streaming_write_entry(struct cache_entry *ce, char *path,
+static int streaming_write_entry(const struct cache_entry *ce, char *path,
struct stream_filter *filter,
const struct checkout *state, int to_tempfile,
int *fstat_done, struct stat *statbuf)
{
- int result = -1;
+ int result = 0;
int fd;
fd = open_output_fd(path, ce, to_tempfile);
- if (0 <= fd) {
- result = stream_blob_to_fd(fd, ce->sha1, filter, 1);
- *fstat_done = fstat_output(fd, state, statbuf);
- result = close(fd);
- }
- if (result && 0 <= fd)
+ if (fd < 0)
+ return -1;
+
+ result |= stream_blob_to_fd(fd, ce->sha1, filter, 1);
+ *fstat_done = fstat_output(fd, state, statbuf);
+ result |= close(fd);
+
+ if (result)
unlink(path);
return result;
}
-static int write_entry(struct cache_entry *ce, char *path, const struct checkout *state, int to_tempfile)
+static int write_entry(struct cache_entry *ce,
+ char *path, const struct checkout *state, int to_tempfile)
{
unsigned int ce_mode_s_ifmt = ce->ce_mode & S_IFMT;
int fd, ret, fstat_done = 0;
@@ -145,7 +148,7 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout
struct stat st;
if (ce_mode_s_ifmt == S_IFREG) {
- struct stream_filter *filter = get_stream_filter(path, ce->sha1);
+ struct stream_filter *filter = get_stream_filter(ce->name, ce->sha1);
if (filter &&
!streaming_write_entry(ce, path, filter,
state, to_tempfile,
@@ -197,9 +200,9 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout
break;
case S_IFGITLINK:
if (to_tempfile)
- return error("cannot create temporary subproject %s", path);
+ return error("cannot create temporary submodule %s", path);
if (mkdir(path, 0777) < 0)
- return error("cannot create subproject directory %s", path);
+ return error("cannot create submodule directory %s", path);
break;
default:
return error("unknown file mode for %s in index", path);
@@ -231,26 +234,36 @@ static int check_path(const char *path, int len, struct stat *st, int skiplen)
return lstat(path, st);
}
-int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath)
+/*
+ * Write the contents from ce out to the working tree.
+ *
+ * When topath[] is not NULL, instead of writing to the working tree
+ * file named by ce, a temporary file is created by this function and
+ * its name is returned in topath[], which must be able to hold at
+ * least TEMPORARY_FILENAME_LENGTH bytes long.
+ */
+int checkout_entry(struct cache_entry *ce,
+ const struct checkout *state, char *topath)
{
- static char path[PATH_MAX + 1];
+ static struct strbuf path = STRBUF_INIT;
struct stat st;
- int len = state->base_dir_len;
if (topath)
return write_entry(ce, topath, state, 1);
- memcpy(path, state->base_dir, len);
- strcpy(path + len, ce->name);
- len += ce_namelen(ce);
+ strbuf_reset(&path);
+ strbuf_add(&path, state->base_dir, state->base_dir_len);
+ strbuf_add(&path, ce->name, ce_namelen(ce));
- if (!check_path(path, len, &st, state->base_dir_len)) {
+ if (!check_path(path.buf, path.len, &st, state->base_dir_len)) {
unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
if (!changed)
return 0;
if (!state->force) {
if (!state->quiet)
- fprintf(stderr, "%s already exists, no checkout\n", path);
+ fprintf(stderr,
+ "%s already exists, no checkout\n",
+ path.buf);
return -1;
}
@@ -265,12 +278,14 @@ int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *t
if (S_ISGITLINK(ce->ce_mode))
return 0;
if (!state->force)
- return error("%s is a directory", path);
- remove_subtree(path);
- } else if (unlink(path))
- return error("unable to unlink old '%s' (%s)", path, strerror(errno));
+ return error("%s is a directory", path.buf);
+ remove_subtree(&path);
+ } else if (unlink(path.buf))
+ return error("unable to unlink old '%s' (%s)",
+ path.buf, strerror(errno));
} else if (state->not_new)
return 0;
- create_directories(path, len, state);
- return write_entry(ce, path, state, 0);
+
+ create_directories(path.buf, path.len, state);
+ return write_entry(ce, path.buf, state, 0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 08:39:09 +0000