mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
graph API: Added logic for colored edges
Modified the graph drawing logic to colorize edges based on parent-child relationships similiarly to gitk. Signed-off-by: Allan Caffee <allan.caffee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
parent
f800b65bea
commit
427fc5b888
1
color.h
1
color.h
|
@ -11,6 +11,7 @@
|
|||
#define GIT_COLOR_GREEN "\033[32m"
|
||||
#define GIT_COLOR_YELLOW "\033[33m"
|
||||
#define GIT_COLOR_BLUE "\033[34m"
|
||||
#define GIT_COLOR_MAGENTA "\033[35m"
|
||||
#define GIT_COLOR_CYAN "\033[36m"
|
||||
#define GIT_COLOR_BG_RED "\033[41m"
|
||||
|
||||
|
|
246
graph.c
246
graph.c
|
@ -1,5 +1,6 @@
|
|||
#include "cache.h"
|
||||
#include "commit.h"
|
||||
#include "color.h"
|
||||
#include "graph.h"
|
||||
#include "diff.h"
|
||||
#include "revision.h"
|
||||
|
@ -43,10 +44,6 @@ static void graph_show_strbuf(struct git_graph *graph, struct strbuf const *sb);
|
|||
|
||||
/*
|
||||
* TODO:
|
||||
* - Add colors to the graph.
|
||||
* Pick a color for each column, and print all characters
|
||||
* in that column with the specified color.
|
||||
*
|
||||
* - Limit the number of columns, similar to the way gitk does.
|
||||
* If we reach more than a specified number of columns, omit
|
||||
* sections of some columns.
|
||||
|
@ -72,9 +69,10 @@ struct column {
|
|||
*/
|
||||
struct commit *commit;
|
||||
/*
|
||||
* XXX: Once we add support for colors, struct column could also
|
||||
* contain the color of its branch line.
|
||||
* The color to (optionally) print this column in. This is an
|
||||
* index into column_colors.
|
||||
*/
|
||||
unsigned short color;
|
||||
};
|
||||
|
||||
enum graph_state {
|
||||
|
@ -86,6 +84,41 @@ enum graph_state {
|
|||
GRAPH_COLLAPSING
|
||||
};
|
||||
|
||||
/*
|
||||
* The list of available column colors.
|
||||
*/
|
||||
static char column_colors[][COLOR_MAXLEN] = {
|
||||
GIT_COLOR_RED,
|
||||
GIT_COLOR_GREEN,
|
||||
GIT_COLOR_YELLOW,
|
||||
GIT_COLOR_BLUE,
|
||||
GIT_COLOR_MAGENTA,
|
||||
GIT_COLOR_CYAN,
|
||||
GIT_COLOR_BOLD GIT_COLOR_RED,
|
||||
GIT_COLOR_BOLD GIT_COLOR_GREEN,
|
||||
GIT_COLOR_BOLD GIT_COLOR_YELLOW,
|
||||
GIT_COLOR_BOLD GIT_COLOR_BLUE,
|
||||
GIT_COLOR_BOLD GIT_COLOR_MAGENTA,
|
||||
GIT_COLOR_BOLD GIT_COLOR_CYAN,
|
||||
};
|
||||
|
||||
#define COLUMN_COLORS_MAX (ARRAY_SIZE(column_colors))
|
||||
|
||||
static const char *column_get_color_code(const struct column *c)
|
||||
{
|
||||
return column_colors[c->color];
|
||||
}
|
||||
|
||||
static void strbuf_write_column(struct strbuf *sb, const struct column *c,
|
||||
char col_char)
|
||||
{
|
||||
if (c->color < COLUMN_COLORS_MAX)
|
||||
strbuf_addstr(sb, column_get_color_code(c));
|
||||
strbuf_addch(sb, col_char);
|
||||
if (c->color < COLUMN_COLORS_MAX)
|
||||
strbuf_addstr(sb, GIT_COLOR_RESET);
|
||||
}
|
||||
|
||||
struct git_graph {
|
||||
/*
|
||||
* The commit currently being processed
|
||||
|
@ -185,6 +218,11 @@ struct git_graph {
|
|||
* temporary array each time we have to output a collapsing line.
|
||||
*/
|
||||
int *new_mapping;
|
||||
/*
|
||||
* The current default column color being used. This is
|
||||
* stored as an index into the array column_colors.
|
||||
*/
|
||||
unsigned short default_column_color;
|
||||
};
|
||||
|
||||
struct git_graph *graph_init(struct rev_info *opt)
|
||||
|
@ -201,6 +239,7 @@ struct git_graph *graph_init(struct rev_info *opt)
|
|||
graph->num_columns = 0;
|
||||
graph->num_new_columns = 0;
|
||||
graph->mapping_size = 0;
|
||||
graph->default_column_color = 0;
|
||||
|
||||
/*
|
||||
* Allocate a reasonably large default number of columns
|
||||
|
@ -312,6 +351,33 @@ static struct commit_list *first_interesting_parent(struct git_graph *graph)
|
|||
return next_interesting_parent(graph, parents);
|
||||
}
|
||||
|
||||
static unsigned short graph_get_current_column_color(const struct git_graph *graph)
|
||||
{
|
||||
if (!DIFF_OPT_TST(&graph->revs->diffopt, COLOR_DIFF))
|
||||
return COLUMN_COLORS_MAX;
|
||||
return graph->default_column_color;
|
||||
}
|
||||
|
||||
/*
|
||||
* Update the graph's default column color.
|
||||
*/
|
||||
static void graph_increment_column_color(struct git_graph *graph)
|
||||
{
|
||||
graph->default_column_color = (graph->default_column_color + 1) %
|
||||
COLUMN_COLORS_MAX;
|
||||
}
|
||||
|
||||
static unsigned short graph_find_commit_color(const struct git_graph *graph,
|
||||
const struct commit *commit)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < graph->num_columns; i++) {
|
||||
if (graph->columns[i].commit == commit)
|
||||
return graph->columns[i].color;
|
||||
}
|
||||
return graph_get_current_column_color(graph);
|
||||
}
|
||||
|
||||
static void graph_insert_into_new_columns(struct git_graph *graph,
|
||||
struct commit *commit,
|
||||
int *mapping_index)
|
||||
|
@ -334,6 +400,7 @@ static void graph_insert_into_new_columns(struct git_graph *graph,
|
|||
* This commit isn't already in new_columns. Add it.
|
||||
*/
|
||||
graph->new_columns[graph->num_new_columns].commit = commit;
|
||||
graph->new_columns[graph->num_new_columns].color = graph_find_commit_color(graph, commit);
|
||||
graph->mapping[*mapping_index] = graph->num_new_columns;
|
||||
*mapping_index += 2;
|
||||
graph->num_new_columns++;
|
||||
|
@ -445,6 +512,12 @@ static void graph_update_columns(struct git_graph *graph)
|
|||
for (parent = first_interesting_parent(graph);
|
||||
parent;
|
||||
parent = next_interesting_parent(graph, parent)) {
|
||||
/*
|
||||
* If this is a merge increment the current
|
||||
* color.
|
||||
*/
|
||||
if (graph->num_parents > 1)
|
||||
graph_increment_column_color(graph);
|
||||
graph_insert_into_new_columns(graph,
|
||||
parent->item,
|
||||
&mapping_idx);
|
||||
|
@ -560,7 +633,8 @@ static int graph_is_mapping_correct(struct git_graph *graph)
|
|||
return 1;
|
||||
}
|
||||
|
||||
static void graph_pad_horizontally(struct git_graph *graph, struct strbuf *sb)
|
||||
static void graph_pad_horizontally(struct git_graph *graph, struct strbuf *sb,
|
||||
int chars_written)
|
||||
{
|
||||
/*
|
||||
* Add additional spaces to the end of the strbuf, so that all
|
||||
|
@ -570,10 +644,10 @@ static void graph_pad_horizontally(struct git_graph *graph, struct strbuf *sb)
|
|||
* aligned for the entire commit.
|
||||
*/
|
||||
int extra;
|
||||
if (sb->len >= graph->width)
|
||||
if (chars_written >= graph->width)
|
||||
return;
|
||||
|
||||
extra = graph->width - sb->len;
|
||||
extra = graph->width - chars_written;
|
||||
strbuf_addf(sb, "%*s", (int) extra, "");
|
||||
}
|
||||
|
||||
|
@ -596,10 +670,11 @@ static void graph_output_padding_line(struct git_graph *graph,
|
|||
* Output a padding row, that leaves all branch lines unchanged
|
||||
*/
|
||||
for (i = 0; i < graph->num_new_columns; i++) {
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, &graph->new_columns[i], '|');
|
||||
strbuf_addch(sb, ' ');
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, graph->num_new_columns * 2);
|
||||
}
|
||||
|
||||
static void graph_output_skip_line(struct git_graph *graph, struct strbuf *sb)
|
||||
|
@ -609,7 +684,7 @@ static void graph_output_skip_line(struct git_graph *graph, struct strbuf *sb)
|
|||
* of the graph is missing.
|
||||
*/
|
||||
strbuf_addstr(sb, "...");
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, 3);
|
||||
|
||||
if (graph->num_parents >= 3 &&
|
||||
graph->commit_index < (graph->num_columns - 1))
|
||||
|
@ -623,6 +698,7 @@ static void graph_output_pre_commit_line(struct git_graph *graph,
|
|||
{
|
||||
int num_expansion_rows;
|
||||
int i, seen_this;
|
||||
int chars_written;
|
||||
|
||||
/*
|
||||
* This function formats a row that increases the space around a commit
|
||||
|
@ -645,11 +721,14 @@ static void graph_output_pre_commit_line(struct git_graph *graph,
|
|||
* Output the row
|
||||
*/
|
||||
seen_this = 0;
|
||||
chars_written = 0;
|
||||
for (i = 0; i < graph->num_columns; i++) {
|
||||
struct column *col = &graph->columns[i];
|
||||
if (col->commit == graph->commit) {
|
||||
seen_this = 1;
|
||||
strbuf_addf(sb, "| %*s", graph->expansion_row, "");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
strbuf_addf(sb, " %*s", graph->expansion_row, "");
|
||||
chars_written += 2 + graph->expansion_row;
|
||||
} else if (seen_this && (graph->expansion_row == 0)) {
|
||||
/*
|
||||
* This is the first line of the pre-commit output.
|
||||
|
@ -662,17 +741,22 @@ static void graph_output_pre_commit_line(struct git_graph *graph,
|
|||
*/
|
||||
if (graph->prev_state == GRAPH_POST_MERGE &&
|
||||
graph->prev_commit_index < i)
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
strbuf_write_column(sb, col, '\\');
|
||||
else
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
chars_written++;
|
||||
} else if (seen_this && (graph->expansion_row > 0)) {
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
strbuf_write_column(sb, col, '\\');
|
||||
chars_written++;
|
||||
} else {
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
chars_written++;
|
||||
}
|
||||
strbuf_addch(sb, ' ');
|
||||
chars_written++;
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, chars_written);
|
||||
|
||||
/*
|
||||
* Increment graph->expansion_row,
|
||||
|
@ -714,10 +798,34 @@ static void graph_output_commit_char(struct git_graph *graph, struct strbuf *sb)
|
|||
strbuf_addch(sb, '*');
|
||||
}
|
||||
|
||||
/*
|
||||
* Draw an octopus merge and return the number of characters written.
|
||||
*/
|
||||
static int graph_draw_octopus_merge(struct git_graph *graph,
|
||||
struct strbuf *sb)
|
||||
{
|
||||
/*
|
||||
* Here dashless_commits represents the number of parents
|
||||
* which don't need to have dashes (because their edges fit
|
||||
* neatly under the commit).
|
||||
*/
|
||||
const int dashless_commits = 2;
|
||||
int col_num, i;
|
||||
int num_dashes =
|
||||
((graph->num_parents - dashless_commits) * 2) - 1;
|
||||
for (i = 0; i < num_dashes; i++) {
|
||||
col_num = (i / 2) + dashless_commits;
|
||||
strbuf_write_column(sb, &graph->new_columns[col_num], '-');
|
||||
}
|
||||
col_num = (i / 2) + dashless_commits;
|
||||
strbuf_write_column(sb, &graph->new_columns[col_num], '.');
|
||||
return num_dashes + 1;
|
||||
}
|
||||
|
||||
static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb)
|
||||
{
|
||||
int seen_this = 0;
|
||||
int i, j;
|
||||
int i, chars_written;
|
||||
|
||||
/*
|
||||
* Output the row containing this commit
|
||||
|
@ -727,7 +835,9 @@ static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb)
|
|||
* children that we have already processed.)
|
||||
*/
|
||||
seen_this = 0;
|
||||
chars_written = 0;
|
||||
for (i = 0; i <= graph->num_columns; i++) {
|
||||
struct column *col = &graph->columns[i];
|
||||
struct commit *col_commit;
|
||||
if (i == graph->num_columns) {
|
||||
if (seen_this)
|
||||
|
@ -740,18 +850,14 @@ static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb)
|
|||
if (col_commit == graph->commit) {
|
||||
seen_this = 1;
|
||||
graph_output_commit_char(graph, sb);
|
||||
chars_written++;
|
||||
|
||||
if (graph->num_parents < 3)
|
||||
strbuf_addch(sb, ' ');
|
||||
else {
|
||||
int num_dashes =
|
||||
((graph->num_parents - 2) * 2) - 1;
|
||||
for (j = 0; j < num_dashes; j++)
|
||||
strbuf_addch(sb, '-');
|
||||
strbuf_addstr(sb, ". ");
|
||||
}
|
||||
if (graph->num_parents > 3)
|
||||
chars_written += graph_draw_octopus_merge(graph,
|
||||
sb);
|
||||
} else if (seen_this && (graph->num_parents > 2)) {
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
strbuf_write_column(sb, col, '\\');
|
||||
chars_written++;
|
||||
} else if (seen_this && (graph->num_parents == 2)) {
|
||||
/*
|
||||
* This is a 2-way merge commit.
|
||||
|
@ -768,15 +874,19 @@ static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb)
|
|||
*/
|
||||
if (graph->prev_state == GRAPH_POST_MERGE &&
|
||||
graph->prev_commit_index < i)
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
strbuf_write_column(sb, col, '\\');
|
||||
else
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
chars_written++;
|
||||
} else {
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
chars_written++;
|
||||
}
|
||||
strbuf_addch(sb, ' ');
|
||||
chars_written++;
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, chars_written);
|
||||
|
||||
/*
|
||||
* Update graph->state
|
||||
|
@ -789,37 +899,75 @@ static void graph_output_commit_line(struct git_graph *graph, struct strbuf *sb)
|
|||
graph_update_state(graph, GRAPH_COLLAPSING);
|
||||
}
|
||||
|
||||
static struct column *find_new_column_by_commit(struct git_graph *graph,
|
||||
struct commit *commit)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < graph->num_new_columns; i++) {
|
||||
if (graph->new_columns[i].commit == commit)
|
||||
return &graph->new_columns[i];
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void graph_output_post_merge_line(struct git_graph *graph, struct strbuf *sb)
|
||||
{
|
||||
int seen_this = 0;
|
||||
int i, j;
|
||||
int i, j, chars_written;
|
||||
|
||||
/*
|
||||
* Output the post-merge row
|
||||
*/
|
||||
chars_written = 0;
|
||||
for (i = 0; i <= graph->num_columns; i++) {
|
||||
struct column *col = &graph->columns[i];
|
||||
struct commit *col_commit;
|
||||
if (i == graph->num_columns) {
|
||||
if (seen_this)
|
||||
break;
|
||||
col_commit = graph->commit;
|
||||
} else {
|
||||
col_commit = graph->columns[i].commit;
|
||||
col_commit = col->commit;
|
||||
}
|
||||
|
||||
if (col_commit == graph->commit) {
|
||||
/*
|
||||
* Since the current commit is a merge find
|
||||
* the columns for the parent commits in
|
||||
* new_columns and use those to format the
|
||||
* edges.
|
||||
*/
|
||||
struct commit_list *parents = NULL;
|
||||
struct column *par_column;
|
||||
seen_this = 1;
|
||||
strbuf_addch(sb, '|');
|
||||
for (j = 0; j < graph->num_parents - 1; j++)
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
parents = first_interesting_parent(graph);
|
||||
assert(parents);
|
||||
par_column = find_new_column_by_commit(graph, parents->item);
|
||||
assert(par_column);
|
||||
|
||||
strbuf_write_column(sb, par_column, '|');
|
||||
chars_written++;
|
||||
for (j = 0; j < graph->num_parents - 1; j++) {
|
||||
parents = next_interesting_parent(graph, parents);
|
||||
assert(parents);
|
||||
par_column = find_new_column_by_commit(graph, parents->item);
|
||||
assert(par_column);
|
||||
strbuf_write_column(sb, par_column, '\\');
|
||||
strbuf_addch(sb, ' ');
|
||||
}
|
||||
chars_written += j * 2;
|
||||
} else if (seen_this) {
|
||||
strbuf_addstr(sb, "\\ ");
|
||||
strbuf_write_column(sb, col, '\\');
|
||||
strbuf_addch(sb, ' ');
|
||||
chars_written += 2;
|
||||
} else {
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
strbuf_addch(sb, ' ');
|
||||
chars_written += 2;
|
||||
}
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, chars_written);
|
||||
|
||||
/*
|
||||
* Update graph->state
|
||||
|
@ -912,12 +1060,12 @@ static void graph_output_collapsing_line(struct git_graph *graph, struct strbuf
|
|||
if (target < 0)
|
||||
strbuf_addch(sb, ' ');
|
||||
else if (target * 2 == i)
|
||||
strbuf_addch(sb, '|');
|
||||
strbuf_write_column(sb, &graph->new_columns[target], '|');
|
||||
else
|
||||
strbuf_addch(sb, '/');
|
||||
strbuf_write_column(sb, &graph->new_columns[target], '/');
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, graph->mapping_size);
|
||||
|
||||
/*
|
||||
* Swap mapping and new_mapping
|
||||
|
@ -979,9 +1127,10 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb)
|
|||
* children that we have already processed.)
|
||||
*/
|
||||
for (i = 0; i < graph->num_columns; i++) {
|
||||
struct commit *col_commit = graph->columns[i].commit;
|
||||
struct column *col = &graph->columns[i];
|
||||
struct commit *col_commit = col->commit;
|
||||
if (col_commit == graph->commit) {
|
||||
strbuf_addch(sb, '|');
|
||||
strbuf_write_column(sb, col, '|');
|
||||
|
||||
if (graph->num_parents < 3)
|
||||
strbuf_addch(sb, ' ');
|
||||
|
@ -991,11 +1140,12 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb)
|
|||
strbuf_addch(sb, ' ');
|
||||
}
|
||||
} else {
|
||||
strbuf_addstr(sb, "| ");
|
||||
strbuf_write_column(sb, col, '|');
|
||||
strbuf_addch(sb, ' ');
|
||||
}
|
||||
}
|
||||
|
||||
graph_pad_horizontally(graph, sb);
|
||||
graph_pad_horizontally(graph, sb, graph->num_columns);
|
||||
|
||||
/*
|
||||
* Update graph->prev_state since we have output a padding line
|
||||
|
|
Loading…
Reference in a new issue