mirror of
https://github.com/git/git
synced 2024-08-27 19:49:21 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
* jc/1.7.0-diff-whitespace-only-status: diff.c: fix typoes in comments Make test case number unique diff: Rename QUIET internal option to QUICK diff: change semantics of "ignore whitespace" options Conflicts: diff.h
401 lines
9.4 KiB
C
401 lines
9.4 KiB
C
#include "cache.h"
|
|
#include "commit.h"
|
|
#include "diff.h"
|
|
#include "revision.h"
|
|
#include "list-objects.h"
|
|
#include "builtin.h"
|
|
#include "log-tree.h"
|
|
#include "graph.h"
|
|
#include "bisect.h"
|
|
|
|
static const char rev_list_usage[] =
|
|
"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
|
|
" limiting output:\n"
|
|
" --max-count=nr\n"
|
|
" --max-age=epoch\n"
|
|
" --min-age=epoch\n"
|
|
" --sparse\n"
|
|
" --no-merges\n"
|
|
" --remove-empty\n"
|
|
" --all\n"
|
|
" --branches\n"
|
|
" --tags\n"
|
|
" --remotes\n"
|
|
" --stdin\n"
|
|
" --quiet\n"
|
|
" ordering output:\n"
|
|
" --topo-order\n"
|
|
" --date-order\n"
|
|
" --reverse\n"
|
|
" formatting output:\n"
|
|
" --parents\n"
|
|
" --children\n"
|
|
" --objects | --objects-edge\n"
|
|
" --unpacked\n"
|
|
" --header | --pretty\n"
|
|
" --abbrev=nr | --no-abbrev\n"
|
|
" --abbrev-commit\n"
|
|
" --left-right\n"
|
|
" special purpose:\n"
|
|
" --bisect\n"
|
|
" --bisect-vars\n"
|
|
" --bisect-all"
|
|
;
|
|
|
|
static void finish_commit(struct commit *commit, void *data);
|
|
static void show_commit(struct commit *commit, void *data)
|
|
{
|
|
struct rev_list_info *info = data;
|
|
struct rev_info *revs = info->revs;
|
|
|
|
graph_show_commit(revs->graph);
|
|
|
|
if (info->show_timestamp)
|
|
printf("%lu ", commit->date);
|
|
if (info->header_prefix)
|
|
fputs(info->header_prefix, stdout);
|
|
|
|
if (!revs->graph) {
|
|
if (commit->object.flags & BOUNDARY)
|
|
putchar('-');
|
|
else if (commit->object.flags & UNINTERESTING)
|
|
putchar('^');
|
|
else if (revs->left_right) {
|
|
if (commit->object.flags & SYMMETRIC_LEFT)
|
|
putchar('<');
|
|
else
|
|
putchar('>');
|
|
}
|
|
}
|
|
if (revs->abbrev_commit && revs->abbrev)
|
|
fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev),
|
|
stdout);
|
|
else
|
|
fputs(sha1_to_hex(commit->object.sha1), stdout);
|
|
if (revs->print_parents) {
|
|
struct commit_list *parents = commit->parents;
|
|
while (parents) {
|
|
printf(" %s", sha1_to_hex(parents->item->object.sha1));
|
|
parents = parents->next;
|
|
}
|
|
}
|
|
if (revs->children.name) {
|
|
struct commit_list *children;
|
|
|
|
children = lookup_decoration(&revs->children, &commit->object);
|
|
while (children) {
|
|
printf(" %s", sha1_to_hex(children->item->object.sha1));
|
|
children = children->next;
|
|
}
|
|
}
|
|
show_decorations(revs, commit);
|
|
if (revs->commit_format == CMIT_FMT_ONELINE)
|
|
putchar(' ');
|
|
else
|
|
putchar('\n');
|
|
|
|
if (revs->verbose_header && commit->buffer) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct pretty_print_context ctx = {0};
|
|
ctx.abbrev = revs->abbrev;
|
|
ctx.date_mode = revs->date_mode;
|
|
pretty_print_commit(revs->commit_format, commit, &buf, &ctx);
|
|
if (revs->graph) {
|
|
if (buf.len) {
|
|
if (revs->commit_format != CMIT_FMT_ONELINE)
|
|
graph_show_oneline(revs->graph);
|
|
|
|
graph_show_commit_msg(revs->graph, &buf);
|
|
|
|
/*
|
|
* Add a newline after the commit message.
|
|
*
|
|
* Usually, this newline produces a blank
|
|
* padding line between entries, in which case
|
|
* we need to add graph padding on this line.
|
|
*
|
|
* However, the commit message may not end in a
|
|
* newline. In this case the newline simply
|
|
* ends the last line of the commit message,
|
|
* and we don't need any graph output. (This
|
|
* always happens with CMIT_FMT_ONELINE, and it
|
|
* happens with CMIT_FMT_USERFORMAT when the
|
|
* format doesn't explicitly end in a newline.)
|
|
*/
|
|
if (buf.len && buf.buf[buf.len - 1] == '\n')
|
|
graph_show_padding(revs->graph);
|
|
putchar('\n');
|
|
} else {
|
|
/*
|
|
* If the message buffer is empty, just show
|
|
* the rest of the graph output for this
|
|
* commit.
|
|
*/
|
|
if (graph_show_remainder(revs->graph))
|
|
putchar('\n');
|
|
}
|
|
} else {
|
|
if (buf.len)
|
|
printf("%s%c", buf.buf, info->hdr_termination);
|
|
}
|
|
strbuf_release(&buf);
|
|
} else {
|
|
if (graph_show_remainder(revs->graph))
|
|
putchar('\n');
|
|
}
|
|
maybe_flush_or_die(stdout, "stdout");
|
|
finish_commit(commit, data);
|
|
}
|
|
|
|
static void finish_commit(struct commit *commit, void *data)
|
|
{
|
|
if (commit->parents) {
|
|
free_commit_list(commit->parents);
|
|
commit->parents = NULL;
|
|
}
|
|
free(commit->buffer);
|
|
commit->buffer = NULL;
|
|
}
|
|
|
|
static void finish_object(struct object *obj, const struct name_path *path, const char *name)
|
|
{
|
|
if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1))
|
|
die("missing blob object '%s'", sha1_to_hex(obj->sha1));
|
|
}
|
|
|
|
static void show_object(struct object *obj, const struct name_path *path, const char *component)
|
|
{
|
|
char *name = path_name(path, component);
|
|
/* An object with name "foo\n0000000..." can be used to
|
|
* confuse downstream "git pack-objects" very badly.
|
|
*/
|
|
const char *ep = strchr(name, '\n');
|
|
|
|
finish_object(obj, path, name);
|
|
if (ep) {
|
|
printf("%s %.*s\n", sha1_to_hex(obj->sha1),
|
|
(int) (ep - name),
|
|
name);
|
|
}
|
|
else
|
|
printf("%s %s\n", sha1_to_hex(obj->sha1), name);
|
|
free(name);
|
|
}
|
|
|
|
static void show_edge(struct commit *commit)
|
|
{
|
|
printf("-%s\n", sha1_to_hex(commit->object.sha1));
|
|
}
|
|
|
|
static inline int log2i(int n)
|
|
{
|
|
int log2 = 0;
|
|
|
|
for (; n > 1; n >>= 1)
|
|
log2++;
|
|
|
|
return log2;
|
|
}
|
|
|
|
static inline int exp2i(int n)
|
|
{
|
|
return 1 << n;
|
|
}
|
|
|
|
/*
|
|
* Estimate the number of bisect steps left (after the current step)
|
|
*
|
|
* For any x between 0 included and 2^n excluded, the probability for
|
|
* n - 1 steps left looks like:
|
|
*
|
|
* P(2^n + x) == (2^n - x) / (2^n + x)
|
|
*
|
|
* and P(2^n + x) < 0.5 means 2^n < 3x
|
|
*/
|
|
int estimate_bisect_steps(int all)
|
|
{
|
|
int n, x, e;
|
|
|
|
if (all < 3)
|
|
return 0;
|
|
|
|
n = log2i(all);
|
|
e = exp2i(n);
|
|
x = all - e;
|
|
|
|
return (e < 3 * x) ? n : n - 1;
|
|
}
|
|
|
|
void print_commit_list(struct commit_list *list,
|
|
const char *format_cur,
|
|
const char *format_last)
|
|
{
|
|
for ( ; list; list = list->next) {
|
|
const char *format = list->next ? format_cur : format_last;
|
|
printf(format, sha1_to_hex(list->item->object.sha1));
|
|
}
|
|
}
|
|
|
|
static void show_tried_revs(struct commit_list *tried)
|
|
{
|
|
printf("bisect_tried='");
|
|
print_commit_list(tried, "%s|", "%s");
|
|
printf("'\n");
|
|
}
|
|
|
|
static void print_var_str(const char *var, const char *val)
|
|
{
|
|
printf("%s='%s'\n", var, val);
|
|
}
|
|
|
|
static void print_var_int(const char *var, int val)
|
|
{
|
|
printf("%s=%d\n", var, val);
|
|
}
|
|
|
|
int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
|
|
{
|
|
int cnt, flags = info->bisect_show_flags;
|
|
char hex[41] = "";
|
|
struct commit_list *tried;
|
|
struct rev_info *revs = info->revs;
|
|
|
|
if (!revs->commits && !(flags & BISECT_SHOW_TRIED))
|
|
return 1;
|
|
|
|
revs->commits = filter_skipped(revs->commits, &tried,
|
|
flags & BISECT_SHOW_ALL,
|
|
NULL, NULL);
|
|
|
|
/*
|
|
* revs->commits can reach "reaches" commits among
|
|
* "all" commits. If it is good, then there are
|
|
* (all-reaches) commits left to be bisected.
|
|
* On the other hand, if it is bad, then the set
|
|
* to bisect is "reaches".
|
|
* A bisect set of size N has (N-1) commits further
|
|
* to test, as we already know one bad one.
|
|
*/
|
|
cnt = all - reaches;
|
|
if (cnt < reaches)
|
|
cnt = reaches;
|
|
|
|
if (revs->commits)
|
|
strcpy(hex, sha1_to_hex(revs->commits->item->object.sha1));
|
|
|
|
if (flags & BISECT_SHOW_ALL) {
|
|
traverse_commit_list(revs, show_commit, show_object, info);
|
|
printf("------\n");
|
|
}
|
|
|
|
if (flags & BISECT_SHOW_TRIED)
|
|
show_tried_revs(tried);
|
|
|
|
print_var_str("bisect_rev", hex);
|
|
print_var_int("bisect_nr", cnt - 1);
|
|
print_var_int("bisect_good", all - reaches - 1);
|
|
print_var_int("bisect_bad", reaches - 1);
|
|
print_var_int("bisect_all", all);
|
|
print_var_int("bisect_steps", estimate_bisect_steps(all));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cmd_rev_list(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct rev_info revs;
|
|
struct rev_list_info info;
|
|
int i;
|
|
int bisect_list = 0;
|
|
int bisect_show_vars = 0;
|
|
int bisect_find_all = 0;
|
|
int quiet = 0;
|
|
|
|
git_config(git_default_config, NULL);
|
|
init_revisions(&revs, prefix);
|
|
revs.abbrev = 0;
|
|
revs.commit_format = CMIT_FMT_UNSPECIFIED;
|
|
argc = setup_revisions(argc, argv, &revs, NULL);
|
|
|
|
memset(&info, 0, sizeof(info));
|
|
info.revs = &revs;
|
|
if (revs.bisect)
|
|
bisect_list = 1;
|
|
|
|
quiet = DIFF_OPT_TST(&revs.diffopt, QUICK);
|
|
for (i = 1 ; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
|
|
if (!strcmp(arg, "--header")) {
|
|
revs.verbose_header = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--timestamp")) {
|
|
info.show_timestamp = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--bisect")) {
|
|
bisect_list = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--bisect-all")) {
|
|
bisect_list = 1;
|
|
bisect_find_all = 1;
|
|
info.bisect_show_flags = BISECT_SHOW_ALL;
|
|
revs.show_decorations = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--bisect-vars")) {
|
|
bisect_list = 1;
|
|
bisect_show_vars = 1;
|
|
continue;
|
|
}
|
|
usage(rev_list_usage);
|
|
|
|
}
|
|
if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
|
|
/* The command line has a --pretty */
|
|
info.hdr_termination = '\n';
|
|
if (revs.commit_format == CMIT_FMT_ONELINE)
|
|
info.header_prefix = "";
|
|
else
|
|
info.header_prefix = "commit ";
|
|
}
|
|
else if (revs.verbose_header)
|
|
/* Only --header was specified */
|
|
revs.commit_format = CMIT_FMT_RAW;
|
|
|
|
if ((!revs.commits &&
|
|
(!(revs.tag_objects||revs.tree_objects||revs.blob_objects) &&
|
|
!revs.pending.nr)) ||
|
|
revs.diff)
|
|
usage(rev_list_usage);
|
|
|
|
save_commit_buffer = revs.verbose_header ||
|
|
revs.grep_filter.pattern_list;
|
|
if (bisect_list)
|
|
revs.limited = 1;
|
|
|
|
if (prepare_revision_walk(&revs))
|
|
die("revision walk setup failed");
|
|
if (revs.tree_objects)
|
|
mark_edges_uninteresting(revs.commits, &revs, show_edge);
|
|
|
|
if (bisect_list) {
|
|
int reaches = reaches, all = all;
|
|
|
|
revs.commits = find_bisection(revs.commits, &reaches, &all,
|
|
bisect_find_all);
|
|
|
|
if (bisect_show_vars)
|
|
return show_bisect_vars(&info, reaches, all);
|
|
}
|
|
|
|
traverse_commit_list(&revs,
|
|
quiet ? finish_commit : show_commit,
|
|
quiet ? finish_object : show_object,
|
|
&info);
|
|
|
|
return 0;
|
|
}
|