[PATCH 4/6 v3] Emit a whole line once a time.
From: Bo Yang <hidden>
Date: 2016-06-15 22:48:50
Subsystem:
the rest · Maintainer:
Linus Torvalds
Use a strbuf to compose the whole line, and then call emit_line to output it once. This make output_prefix callback works well. Signed-off-by: Bo Yang <redacted> --- diff.c | 34 +++++++++++++++++++++++++++++----- 1 files changed, 29 insertions(+), 5 deletions(-)
diff --git a/diff.c b/diff.c
index b935e1a..ea737e9 100644
--- a/diff.c
+++ b/diff.c@@ -370,6 +370,18 @@ static void emit_hunk_header(struct emit_callback *ecbdata, const char *reset = diff_get_color(ecbdata->color_diff, DIFF_RESET); static const char atat[2] = { '@', '@' }; const char *cp, *ep; + struct strbuf msgbuf = STRBUF_INIT; + int org_len = len; + + /* + * trailing \r\n + */ + int i = 1; + for (; i < 3; i++) { + if (line[len - i] == '\r' || line[len - i] == '\n') { + len --; + } + } /* * As a hunk header must begin with "@@ -<old>, +<new> @@",
@@ -384,17 +396,29 @@ static void emit_hunk_header(struct emit_callback *ecbdata, ep += 2; /* skip over @@ */ /* The hunk header in fraginfo color */ - emit_line(ecbdata->opt, frag, reset, line, ep - line); + strbuf_add(&msgbuf, frag, strlen(frag)); + strbuf_add(&msgbuf, line, ep - line); + strbuf_add(&msgbuf, reset, strlen(reset)); /* blank before the func header */ for (cp = ep; ep - line < len; ep++) if (*ep != ' ' && *ep != '\t') break; - if (ep != cp) - emit_line(ecbdata->opt, plain, reset, cp, ep - cp); + if (ep != cp) { + strbuf_add(&msgbuf, plain, strlen(plain)); + strbuf_add(&msgbuf, cp, ep - cp); + strbuf_add(&msgbuf, reset, strlen(reset)); + } + + if (ep < line + len) { + strbuf_add(&msgbuf, func, strlen(func)); + strbuf_add(&msgbuf, ep, line + len - ep); + strbuf_add(&msgbuf, reset, strlen(reset)); + } - if (ep < line + len) - emit_line(ecbdata->opt, func, reset, ep, line + len - ep); + strbuf_add(&msgbuf, line + len, org_len - len); + emit_line(ecbdata->opt, "", "", msgbuf.buf, msgbuf.len); + strbuf_release(&msgbuf); } static struct diff_tempfile *claim_diff_tempfile(void) {
--
1.6.0.4