зеркало из https://github.com/microsoft/git.git
408 строки
10 KiB
C
408 строки
10 KiB
C
#include "cache.h"
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#include "commit.h"
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#include "diff.h"
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#include "revision.h"
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#include "list-objects.h"
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#include "pack.h"
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#include "pack-bitmap.h"
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#include "builtin.h"
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#include "log-tree.h"
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#include "graph.h"
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#include "bisect.h"
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static const char rev_list_usage[] =
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"git rev-list [OPTION] <commit-id>... [ -- paths... ]\n"
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" limiting output:\n"
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" --max-count=<n>\n"
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" --max-age=<epoch>\n"
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" --min-age=<epoch>\n"
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" --sparse\n"
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" --no-merges\n"
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" --min-parents=<n>\n"
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" --no-min-parents\n"
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" --max-parents=<n>\n"
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" --no-max-parents\n"
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" --remove-empty\n"
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" --all\n"
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" --branches\n"
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" --tags\n"
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" --remotes\n"
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" --stdin\n"
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" --quiet\n"
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" ordering output:\n"
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" --topo-order\n"
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" --date-order\n"
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" --reverse\n"
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" formatting output:\n"
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" --parents\n"
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" --children\n"
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" --objects | --objects-edge\n"
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" --unpacked\n"
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" --header | --pretty\n"
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" --abbrev=<n> | --no-abbrev\n"
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" --abbrev-commit\n"
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" --left-right\n"
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" --count\n"
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" special purpose:\n"
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" --bisect\n"
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" --bisect-vars\n"
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" --bisect-all"
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;
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static void finish_commit(struct commit *commit, void *data);
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static void show_commit(struct commit *commit, void *data)
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{
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struct rev_list_info *info = data;
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struct rev_info *revs = info->revs;
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if (info->flags & REV_LIST_QUIET) {
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finish_commit(commit, data);
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return;
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}
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graph_show_commit(revs->graph);
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if (revs->count) {
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if (commit->object.flags & PATCHSAME)
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revs->count_same++;
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else if (commit->object.flags & SYMMETRIC_LEFT)
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revs->count_left++;
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else
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revs->count_right++;
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finish_commit(commit, data);
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return;
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}
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if (info->show_timestamp)
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printf("%lu ", commit->date);
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if (info->header_prefix)
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fputs(info->header_prefix, stdout);
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if (!revs->graph)
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fputs(get_revision_mark(revs, commit), stdout);
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if (revs->abbrev_commit && revs->abbrev)
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fputs(find_unique_abbrev(commit->object.sha1, revs->abbrev),
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stdout);
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else
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fputs(sha1_to_hex(commit->object.sha1), stdout);
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if (revs->print_parents) {
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struct commit_list *parents = commit->parents;
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while (parents) {
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printf(" %s", sha1_to_hex(parents->item->object.sha1));
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parents = parents->next;
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}
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}
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if (revs->children.name) {
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struct commit_list *children;
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children = lookup_decoration(&revs->children, &commit->object);
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while (children) {
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printf(" %s", sha1_to_hex(children->item->object.sha1));
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children = children->next;
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}
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}
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show_decorations(revs, commit);
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if (revs->commit_format == CMIT_FMT_ONELINE)
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putchar(' ');
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else
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putchar('\n');
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if (revs->verbose_header && get_cached_commit_buffer(commit, NULL)) {
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struct strbuf buf = STRBUF_INIT;
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struct pretty_print_context ctx = {0};
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ctx.abbrev = revs->abbrev;
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ctx.date_mode = revs->date_mode;
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ctx.date_mode_explicit = revs->date_mode_explicit;
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ctx.fmt = revs->commit_format;
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ctx.output_encoding = get_log_output_encoding();
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pretty_print_commit(&ctx, commit, &buf);
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if (revs->graph) {
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if (buf.len) {
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if (revs->commit_format != CMIT_FMT_ONELINE)
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graph_show_oneline(revs->graph);
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graph_show_commit_msg(revs->graph, &buf);
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/*
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* Add a newline after the commit message.
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*
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* Usually, this newline produces a blank
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* padding line between entries, in which case
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* we need to add graph padding on this line.
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*
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* However, the commit message may not end in a
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* newline. In this case the newline simply
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* ends the last line of the commit message,
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* and we don't need any graph output. (This
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* always happens with CMIT_FMT_ONELINE, and it
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* happens with CMIT_FMT_USERFORMAT when the
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* format doesn't explicitly end in a newline.)
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*/
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if (buf.len && buf.buf[buf.len - 1] == '\n')
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graph_show_padding(revs->graph);
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putchar('\n');
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} else {
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/*
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* If the message buffer is empty, just show
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* the rest of the graph output for this
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* commit.
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*/
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if (graph_show_remainder(revs->graph))
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putchar('\n');
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if (revs->commit_format == CMIT_FMT_ONELINE)
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putchar('\n');
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}
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} else {
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if (revs->commit_format != CMIT_FMT_USERFORMAT ||
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buf.len) {
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fwrite(buf.buf, 1, buf.len, stdout);
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putchar(info->hdr_termination);
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}
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}
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strbuf_release(&buf);
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} else {
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if (graph_show_remainder(revs->graph))
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putchar('\n');
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}
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maybe_flush_or_die(stdout, "stdout");
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finish_commit(commit, data);
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}
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static void finish_commit(struct commit *commit, void *data)
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{
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if (commit->parents) {
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free_commit_list(commit->parents);
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commit->parents = NULL;
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}
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free_commit_buffer(commit);
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}
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static void finish_object(struct object *obj,
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const struct name_path *path, const char *name,
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void *cb_data)
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{
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struct rev_list_info *info = cb_data;
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if (obj->type == OBJ_BLOB && !has_sha1_file(obj->sha1))
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die("missing blob object '%s'", sha1_to_hex(obj->sha1));
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if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
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parse_object(obj->sha1);
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}
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static void show_object(struct object *obj,
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const struct name_path *path, const char *component,
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void *cb_data)
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{
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struct rev_list_info *info = cb_data;
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finish_object(obj, path, component, cb_data);
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if (info->flags & REV_LIST_QUIET)
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return;
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show_object_with_name(stdout, obj, path, component);
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}
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static void show_edge(struct commit *commit)
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{
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printf("-%s\n", sha1_to_hex(commit->object.sha1));
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}
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static void print_var_str(const char *var, const char *val)
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{
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printf("%s='%s'\n", var, val);
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}
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static void print_var_int(const char *var, int val)
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{
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printf("%s=%d\n", var, val);
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}
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static int show_bisect_vars(struct rev_list_info *info, int reaches, int all)
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{
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int cnt, flags = info->flags;
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char hex[GIT_SHA1_HEXSZ + 1] = "";
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struct commit_list *tried;
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struct rev_info *revs = info->revs;
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if (!revs->commits)
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return 1;
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revs->commits = filter_skipped(revs->commits, &tried,
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flags & BISECT_SHOW_ALL,
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NULL, NULL);
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/*
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* revs->commits can reach "reaches" commits among
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* "all" commits. If it is good, then there are
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* (all-reaches) commits left to be bisected.
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* On the other hand, if it is bad, then the set
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* to bisect is "reaches".
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* A bisect set of size N has (N-1) commits further
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* to test, as we already know one bad one.
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*/
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cnt = all - reaches;
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if (cnt < reaches)
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cnt = reaches;
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if (revs->commits)
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sha1_to_hex_r(hex, revs->commits->item->object.sha1);
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if (flags & BISECT_SHOW_ALL) {
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traverse_commit_list(revs, show_commit, show_object, info);
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printf("------\n");
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}
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print_var_str("bisect_rev", hex);
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print_var_int("bisect_nr", cnt - 1);
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print_var_int("bisect_good", all - reaches - 1);
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print_var_int("bisect_bad", reaches - 1);
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print_var_int("bisect_all", all);
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print_var_int("bisect_steps", estimate_bisect_steps(all));
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return 0;
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}
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static int show_object_fast(
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const unsigned char *sha1,
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enum object_type type,
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int exclude,
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uint32_t name_hash,
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struct packed_git *found_pack,
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off_t found_offset)
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{
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fprintf(stdout, "%s\n", sha1_to_hex(sha1));
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return 1;
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}
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int cmd_rev_list(int argc, const char **argv, const char *prefix)
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{
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struct rev_info revs;
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struct rev_list_info info;
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int i;
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int bisect_list = 0;
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int bisect_show_vars = 0;
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int bisect_find_all = 0;
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int use_bitmap_index = 0;
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git_config(git_default_config, NULL);
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init_revisions(&revs, prefix);
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revs.abbrev = DEFAULT_ABBREV;
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revs.commit_format = CMIT_FMT_UNSPECIFIED;
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argc = setup_revisions(argc, argv, &revs, NULL);
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memset(&info, 0, sizeof(info));
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info.revs = &revs;
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if (revs.bisect)
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bisect_list = 1;
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if (DIFF_OPT_TST(&revs.diffopt, QUICK))
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info.flags |= REV_LIST_QUIET;
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for (i = 1 ; i < argc; i++) {
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const char *arg = argv[i];
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if (!strcmp(arg, "--header")) {
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revs.verbose_header = 1;
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continue;
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}
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if (!strcmp(arg, "--timestamp")) {
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info.show_timestamp = 1;
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continue;
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}
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if (!strcmp(arg, "--bisect")) {
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bisect_list = 1;
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continue;
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}
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if (!strcmp(arg, "--bisect-all")) {
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bisect_list = 1;
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bisect_find_all = 1;
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info.flags |= BISECT_SHOW_ALL;
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revs.show_decorations = 1;
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continue;
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}
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if (!strcmp(arg, "--bisect-vars")) {
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bisect_list = 1;
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bisect_show_vars = 1;
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continue;
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}
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if (!strcmp(arg, "--use-bitmap-index")) {
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use_bitmap_index = 1;
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continue;
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}
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if (!strcmp(arg, "--test-bitmap")) {
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test_bitmap_walk(&revs);
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return 0;
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}
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usage(rev_list_usage);
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}
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if (revs.commit_format != CMIT_FMT_UNSPECIFIED) {
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/* The command line has a --pretty */
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info.hdr_termination = '\n';
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if (revs.commit_format == CMIT_FMT_ONELINE)
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info.header_prefix = "";
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else
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info.header_prefix = "commit ";
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}
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else if (revs.verbose_header)
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/* Only --header was specified */
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revs.commit_format = CMIT_FMT_RAW;
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if ((!revs.commits &&
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(!(revs.tag_objects || revs.tree_objects || revs.blob_objects) &&
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!revs.pending.nr)) ||
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revs.diff)
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usage(rev_list_usage);
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if (revs.show_notes)
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die(_("rev-list does not support display of notes"));
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save_commit_buffer = (revs.verbose_header ||
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revs.grep_filter.pattern_list ||
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revs.grep_filter.header_list);
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if (bisect_list)
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revs.limited = 1;
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if (use_bitmap_index && !revs.prune) {
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if (revs.count && !revs.left_right && !revs.cherry_mark) {
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uint32_t commit_count;
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if (!prepare_bitmap_walk(&revs)) {
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count_bitmap_commit_list(&commit_count, NULL, NULL, NULL);
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printf("%d\n", commit_count);
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return 0;
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}
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} else if (revs.tag_objects && revs.tree_objects && revs.blob_objects) {
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if (!prepare_bitmap_walk(&revs)) {
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traverse_bitmap_commit_list(&show_object_fast);
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return 0;
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}
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}
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}
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if (prepare_revision_walk(&revs))
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die("revision walk setup failed");
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if (revs.tree_objects)
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mark_edges_uninteresting(&revs, show_edge);
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if (bisect_list) {
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int reaches = reaches, all = all;
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revs.commits = find_bisection(revs.commits, &reaches, &all,
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bisect_find_all);
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if (bisect_show_vars)
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return show_bisect_vars(&info, reaches, all);
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}
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traverse_commit_list(&revs, show_commit, show_object, &info);
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if (revs.count) {
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if (revs.left_right && revs.cherry_mark)
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printf("%d\t%d\t%d\n", revs.count_left, revs.count_right, revs.count_same);
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else if (revs.left_right)
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printf("%d\t%d\n", revs.count_left, revs.count_right);
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else if (revs.cherry_mark)
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printf("%d\t%d\n", revs.count_left + revs.count_right, revs.count_same);
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else
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printf("%d\n", revs.count_left + revs.count_right);
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}
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return 0;
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}
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