From: Johannes Schindelin <johannes.schindelin@xxxxxx>
It is actually only the `output()` function that uses those diffopts. By
moving the diffopt initialization down into that function, it is
encapsulated better.
Incidentally, it will also make it easier to implement the `--left-only`
and `--right-only` options in `git range-diff` because the `output()`
function is now receiving all range-diff options as a parameter, not
just the diffopts.
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
range-diff.c | 64 +++++++++++++++++++++++++---------------------------
1 file changed, 31 insertions(+), 33 deletions(-)
diff --git a/range-diff.c b/range-diff.c
index 58528c43a3e8..5455cbb9521b 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -464,12 +464,35 @@ static void patch_diff(const char *a, const char *b,
diff_flush(diffopt);
}
+static struct strbuf *output_prefix_cb(struct diff_options *opt, void *data)
+{
+ return data;
+}
+
static void output(struct string_list *a, struct string_list *b,
- struct diff_options *diffopt)
+ struct range_diff_options *range_diff_opts)
{
struct strbuf buf = STRBUF_INIT, dashes = STRBUF_INIT;
int patch_no_width = decimal_width(1 + (a->nr > b->nr ? a->nr : b->nr));
int i = 0, j = 0;
+ struct diff_options opts;
+ struct strbuf indent = STRBUF_INIT;
+
+ if (range_diff_opts->diffopt)
+ memcpy(&opts, range_diff_opts->diffopt, sizeof(opts));
+ else
+ diff_setup(&opts);
+
+ if (!opts.output_format)
+ opts.output_format = DIFF_FORMAT_PATCH;
+ opts.flags.suppress_diff_headers = 1;
+ opts.flags.dual_color_diffed_diffs =
+ range_diff_opts->dual_color;
+ opts.flags.suppress_hunk_header_line_count = 1;
+ opts.output_prefix = output_prefix_cb;
+ strbuf_addstr(&indent, " ");
+ opts.output_prefix_data = &indent;
+ diff_setup_done(&opts);
/*
* We assume the user is really more interested in the second argument
@@ -490,7 +513,7 @@ static void output(struct string_list *a, struct string_list *b,
/* Show unmatched LHS commit whose predecessors were shown. */
if (i < a->nr && a_util->matching < 0) {
- output_pair_header(diffopt, patch_no_width,
+ output_pair_header(&opts, patch_no_width,
&buf, &dashes, a_util, NULL);
i++;
continue;
@@ -498,7 +521,7 @@ static void output(struct string_list *a, struct string_list *b,
/* Show unmatched RHS commits. */
while (j < b->nr && b_util->matching < 0) {
- output_pair_header(diffopt, patch_no_width,
+ output_pair_header(&opts, patch_no_width,
&buf, &dashes, NULL, b_util);
b_util = ++j < b->nr ? b->items[j].util : NULL;
}
@@ -506,22 +529,18 @@ static void output(struct string_list *a, struct string_list *b,
/* Show matching LHS/RHS pair. */
if (j < b->nr) {
a_util = a->items[b_util->matching].util;
- output_pair_header(diffopt, patch_no_width,
+ output_pair_header(&opts, patch_no_width,
&buf, &dashes, a_util, b_util);
- if (!(diffopt->output_format & DIFF_FORMAT_NO_OUTPUT))
+ if (!(opts.output_format & DIFF_FORMAT_NO_OUTPUT))
patch_diff(a->items[b_util->matching].string,
- b->items[j].string, diffopt);
+ b->items[j].string, &opts);
a_util->shown = 1;
j++;
}
}
strbuf_release(&buf);
strbuf_release(&dashes);
-}
-
-static struct strbuf *output_prefix_cb(struct diff_options *opt, void *data)
-{
- return data;
+ strbuf_release(&indent);
}
int show_range_diff(const char *range1, const char *range2,
@@ -538,31 +557,10 @@ int show_range_diff(const char *range1, const char *range2,
res = error(_("could not parse log for '%s'"), range2);
if (!res) {
- struct diff_options opts;
- struct strbuf indent = STRBUF_INIT;
-
- if (range_diff_opts->diffopt)
- memcpy(&opts, range_diff_opts->diffopt, sizeof(opts));
- else
- diff_setup(&opts);
-
- if (!opts.output_format)
- opts.output_format = DIFF_FORMAT_PATCH;
- opts.flags.suppress_diff_headers = 1;
- opts.flags.dual_color_diffed_diffs =
- range_diff_opts->dual_color;
- opts.flags.suppress_hunk_header_line_count = 1;
- opts.output_prefix = output_prefix_cb;
- strbuf_addstr(&indent, " ");
- opts.output_prefix_data = &indent;
- diff_setup_done(&opts);
-
find_exact_matches(&branch1, &branch2);
get_correspondences(&branch1, &branch2,
range_diff_opts->creation_factor);
- output(&branch1, &branch2, &opts);
-
- strbuf_release(&indent);
+ output(&branch1, &branch2, range_diff_opts);
}
string_list_clear(&branch1, 1);
--
gitgitgadget
