[PATCH 74/83] builtin/apply: make try_create_file() return -1 on error

[Christian Couder <christian.couder@xxxxxxxxx>]

Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
 builtin/apply.c | 38 ++++++++++++++++++++++++++++++--------
 1 file changed, 30 insertions(+), 8 deletions(-)

diff --git a/builtin/apply.c b/builtin/apply.c
index 49ef4c9..32c38f0 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -4136,6 +4136,12 @@ static int add_index_file(struct apply_state *state,
 	return 0;
 }
 
+/*
+ * Returns:
+ *  -1 if an unrecoverable error happened
+ *   0 if everything went well
+ *   1 if a recoverable error happened
+ */
 static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
 {
 	int fd;
@@ -4145,28 +4151,32 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
 		struct stat st;
 		if (!lstat(path, &st) && S_ISDIR(st.st_mode))
 			return 0;
-		return mkdir(path, 0777);
+		return !!mkdir(path, 0777);
 	}
 
 	if (has_symlinks && S_ISLNK(mode))
 		/* Although buf:size is counted string, it also is NUL
 		 * terminated.
 		 */
-		return symlink(buf, path);
+		return !!symlink(buf, path);
 
 	fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666);
 	if (fd < 0)
-		return -1;
+		return 1;
 
 	if (convert_to_working_tree(path, buf, size, &nbuf)) {
 		size = nbuf.len;
 		buf  = nbuf.buf;
 	}
-	write_or_die(fd, buf, size);
+
+	if (!write_or_whine_pipe(fd, buf, size, path)) {
+		strbuf_release(&nbuf);
+		return -1;
+	}
 	strbuf_release(&nbuf);
 
 	if (close(fd) < 0)
-		die_errno(_("closing file '%s'"), path);
+		return error(_("closing file '%s': %s"), path, strerror(errno));
 	return 0;
 }
 
@@ -4181,16 +4191,25 @@ static void create_one_file(struct apply_state *state,
 			    const char *buf,
 			    unsigned long size)
 {
+	int res;
+
 	if (state->cached)
 		return;
-	if (!try_create_file(path, mode, buf, size))
+
+	res = try_create_file(path, mode, buf, size);
+	if (!res)
 		return;
+	if (res < 0)
+		exit(1);
 
 	if (errno == ENOENT) {
 		if (safe_create_leading_directories(path))
 			return;
-		if (!try_create_file(path, mode, buf, size))
+		res = try_create_file(path, mode, buf, size);
+		if (!res)
 			return;
+		if (res < 0)
+			exit(1);
 	}
 
 	if (errno == EEXIST || errno == EACCES) {
@@ -4208,12 +4227,15 @@ static void create_one_file(struct apply_state *state,
 		for (;;) {
 			char newpath[PATH_MAX];
 			mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr);
-			if (!try_create_file(newpath, mode, buf, size)) {
+			res = try_create_file(newpath, mode, buf, size);
+			if (!res) {
 				if (!rename(newpath, path))
 					return;
 				unlink_or_warn(newpath);
 				break;
 			}
+			if (res < 0)
+				exit(1);
 			if (errno != EEXIST)
 				break;
 			++nr;
-- 
2.8.1.300.g5fed0c0

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