From 180f48df69d8e7a1a413d7c11907ecf975f09cf7 Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Tue, 14 Jan 2020 18:43:45 +0000 Subject: built-in add -p: support interactive.diffFilter The Perl version supports post-processing the colored diff (that is generated in addition to the uncolored diff, intended to offer a prettier user experience) by a command configured via that config setting, and now the built-in version does that, too. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- add-patch.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'add-patch.c') diff --git a/add-patch.c b/add-patch.c index 46c6c183d5..78bde41df0 100644 --- a/add-patch.c +++ b/add-patch.c @@ -398,6 +398,7 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) if (want_color_fd(1, -1)) { struct child_process colored_cp = CHILD_PROCESS_INIT; + const char *diff_filter = s->s.interactive_diff_filter; setup_child_process(s, &colored_cp, NULL); xsnprintf((char *)args.argv[color_arg_index], 8, "--color"); @@ -407,6 +408,24 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) argv_array_clear(&args); if (res) return error(_("could not parse colored diff")); + + if (diff_filter) { + struct child_process filter_cp = CHILD_PROCESS_INIT; + + setup_child_process(s, &filter_cp, + diff_filter, NULL); + filter_cp.git_cmd = 0; + filter_cp.use_shell = 1; + strbuf_reset(&s->buf); + if (pipe_command(&filter_cp, + colored->buf, colored->len, + &s->buf, colored->len, + NULL, 0) < 0) + return error(_("failed to run '%s'"), + diff_filter); + strbuf_swap(colored, &s->buf); + } + strbuf_complete_line(colored); colored_p = colored->buf; colored_pend = colored_p + colored->len; @@ -531,6 +550,9 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) colored_pend - colored_p); if (colored_eol) colored_p = colored_eol + 1; + else if (p != pend) + /* colored shorter than non-colored? */ + goto mismatched_output; else colored_p = colored_pend; @@ -555,6 +577,15 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) */ hunk->splittable_into++; + /* non-colored shorter than colored? */ + if (colored_p != colored_pend) { +mismatched_output: + error(_("mismatched output from interactive.diffFilter")); + advise(_("Your filter must maintain a one-to-one correspondence\n" + "between its input and output lines.")); + return -1; + } + return 0; } @@ -1612,6 +1643,7 @@ int run_add_p(struct repository *r, enum add_p_mode mode, parse_diff(&s, ps) < 0) { strbuf_release(&s.plain); strbuf_release(&s.colored); + clear_add_i_state(&s.s); return -1; } @@ -1630,5 +1662,6 @@ int run_add_p(struct repository *r, enum add_p_mode mode, strbuf_release(&s.buf); strbuf_release(&s.plain); strbuf_release(&s.colored); + clear_add_i_state(&s.s); return 0; } -- cgit v1.2.3