Signed-off-by: Paul Tan <pyoka...@gmail.com>
---
cache.h | 1 +
wrapper.c | 23 +++++++++++++++++++++++
2 files changed, 24 insertions(+)
diff --git a/cache.h b/cache.h
index 55d443e..aa5e97c 100644
--- a/cache.h
+++ b/cache.h
@@ -1700,6 +1700,7 @@ static inline ssize_t write_str_in_full(int fd, const
char *str)
extern int write_file(const char *path, const char *fmt, ...);
extern int write_file_gently(const char *path, const char *fmt, ...);
+extern void append_file(const char *path, const char *fmt, ...);
/* pager.c */
extern void setup_pager(void);
diff --git a/wrapper.c b/wrapper.c
index 9afc1a0..cd77e94 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -709,6 +709,29 @@ int write_file_gently(const char *path, const char *fmt,
...)
return status;
}
+void append_file(const char *path, const char *fmt, ...)
+{
+ struct strbuf sb = STRBUF_INIT;
+ int fd = open(path, O_WRONLY | O_CREAT | O_APPEND, 0666);
+ va_list params;
+ if (fd < 0)
+ die_errno(_("could not open %s for appending"), path);
+ va_start(params, fmt);
+ strbuf_vaddf(&sb, fmt, params);
+ va_end(params);
+ strbuf_complete_line(&sb);
+ if (write_in_full(fd, sb.buf, sb.len) != sb.len) {
+ int err = errno;
+ close(fd);
+ strbuf_release(&sb);
+ errno = err;
+ die_errno(_("could not write to %s"), path);
+ }
+ strbuf_release(&sb);
+ if (close(fd))
+ die_errno(_("could not close %s"), path);
+}
+
void sleep_millisec(int millisec)
{
poll(NULL, 0, millisec);
--
2.7.0
--
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