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authorLibravatar Derrick Stolee <dstolee@microsoft.com>2020-01-07 21:27:02 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2020-01-08 09:37:18 -0800
commita1087c93677bc0304c98f14915b1843e470e4a55 (patch)
treeb9c21c2068b0dd20c2068fc2bea15a39f4ca6c83
parentgraph: drop assert() for merge with two collapsing parents (diff)
downloadtgif-a1087c93677bc0304c98f14915b1843e470e4a55.tar.xz
graph: fix lack of color in horizontal lines
In some cases, horizontal lines in rendered graphs can lose their coloring. This is due to a use of graph_line_addch() instead of graph_line_write_column(). Using a ternary operator to pick the character is nice for compact code, but we actually need a column to provide the color. Add a test to t4215-log-skewed-merges.sh to prevent regression. Reported-by: Jeff King <peff@peff.net> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--graph.c13
-rwxr-xr-xt/t4215-log-skewed-merges.sh29
2 files changed, 38 insertions, 4 deletions
diff --git a/graph.c b/graph.c
index f514ed3efa..aaf97069bd 100644
--- a/graph.c
+++ b/graph.c
@@ -1063,7 +1063,7 @@ static void graph_output_post_merge_line(struct git_graph *graph, struct graph_l
int i, j;
struct commit_list *first_parent = first_interesting_parent(graph);
- int seen_parent = 0;
+ struct column *parent_col = NULL;
/*
* Output the post-merge row
@@ -1117,12 +1117,17 @@ static void graph_output_post_merge_line(struct git_graph *graph, struct graph_l
graph_line_addch(line, ' ');
} else {
graph_line_write_column(line, col, '|');
- if (graph->merge_layout != 0 || i != graph->commit_index - 1)
- graph_line_addch(line, seen_parent ? '_' : ' ');
+ if (graph->merge_layout != 0 || i != graph->commit_index - 1) {
+ if (parent_col)
+ graph_line_write_column(
+ line, parent_col, '_');
+ else
+ graph_line_addch(line, ' ');
+ }
}
if (col_commit == first_parent->item)
- seen_parent = 1;
+ parent_col = col;
}
/*
diff --git a/t/t4215-log-skewed-merges.sh b/t/t4215-log-skewed-merges.sh
index ddf6f6f5d3..5661ed5881 100755
--- a/t/t4215-log-skewed-merges.sh
+++ b/t/t4215-log-skewed-merges.sh
@@ -282,4 +282,33 @@ test_expect_success 'log --graph with multiple tips' '
EOF
'
+test_expect_success 'log --graph with multiple tips and colors' '
+ test_config log.graphColors red,green,yellow,blue,magenta,cyan &&
+ cat >expect.colors <<-\EOF &&
+ * 6_I
+ <RED>|<RESET><GREEN>\<RESET>
+ <RED>|<RESET> <GREEN>|<RESET> * 6_H
+ <RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET><BLUE>\<RESET>
+ <RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET> * 6_G
+ <RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET> <BLUE>|<RESET> * 6_F
+ <RED>|<RESET> <GREEN>|<RESET><RED>_<RESET><YELLOW>|<RESET><RED>_<RESET><BLUE>|<RESET><RED>/<RESET><GREEN>|<RESET>
+ <RED>|<RESET><RED>/<RESET><GREEN>|<RESET> <YELLOW>|<RESET> <BLUE>|<RESET><GREEN>/<RESET>
+ <RED>|<RESET> <GREEN>|<RESET> <YELLOW>|<RESET><GREEN>/<RESET><BLUE>|<RESET>
+ <RED>|<RESET> <GREEN>|<RESET><GREEN>/<RESET><YELLOW>|<RESET> <BLUE>|<RESET>
+ <RED>|<RESET> <GREEN>|<RESET> * <BLUE>|<RESET> 6_E
+ <RED>|<RESET> * <CYAN>|<RESET> <BLUE>|<RESET> 6_D
+ <RED>|<RESET> <BLUE>|<RESET> <CYAN>|<RESET><BLUE>/<RESET>
+ <RED>|<RESET> <BLUE>|<RESET><BLUE>/<RESET><CYAN>|<RESET>
+ * <BLUE>|<RESET> <CYAN>|<RESET> 6_C
+ <CYAN>|<RESET> <BLUE>|<RESET><CYAN>/<RESET>
+ <CYAN>|<RESET><CYAN>/<RESET><BLUE>|<RESET>
+ * <BLUE>|<RESET> 6_B
+ <BLUE>|<RESET><BLUE>/<RESET>
+ * 6_A
+ EOF
+ git log --color=always --graph --date-order --pretty=tformat:%s 6_1 6_3 6_5 >actual.colors.raw &&
+ test_decode_color <actual.colors.raw | sed "s/ *\$//" >actual.colors &&
+ test_cmp expect.colors actual.colors
+'
+
test_done