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https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
39d23dfa40
The interface into "xdiff" library used to discover the offset and size of a generated patch hunk by first formatting it into the textual hunk header "@@ -n,m +k,l @@" and then parsing the numbers out. A new interface has been introduced to allow callers a more direct access to them. * jk/xdiff-interface: xdiff-interface: drop parse_hunk_header() range-diff: use a hunk callback diff: convert --check to use a hunk callback combine-diff: use an xdiff hunk callback diff: use hunk callback for word-diff diff: discard hunk headers for patch-ids earlier diff: avoid generating unused hunk header lines xdiff-interface: provide a separate consume callback for hunks xdiff: provide a separate emit callback for hunks
118 lines
3 KiB
C
118 lines
3 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "config.h"
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#include "dir.h"
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#include "parse-options.h"
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#include "string-list.h"
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#include "rerere.h"
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#include "xdiff/xdiff.h"
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#include "xdiff-interface.h"
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#include "pathspec.h"
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static const char * const rerere_usage[] = {
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N_("git rerere [clear | forget <path>... | status | remaining | diff | gc]"),
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NULL,
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};
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static int outf(void *dummy, mmbuffer_t *ptr, int nbuf)
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{
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int i;
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for (i = 0; i < nbuf; i++)
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if (write_in_full(1, ptr[i].ptr, ptr[i].size) < 0)
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return -1;
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return 0;
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}
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static int diff_two(const char *file1, const char *label1,
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const char *file2, const char *label2)
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{
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xpparam_t xpp;
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xdemitconf_t xecfg;
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xdemitcb_t ecb;
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mmfile_t minus, plus;
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int ret;
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if (read_mmfile(&minus, file1) || read_mmfile(&plus, file2))
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return -1;
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printf("--- a/%s\n+++ b/%s\n", label1, label2);
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fflush(stdout);
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memset(&xpp, 0, sizeof(xpp));
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xpp.flags = 0;
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memset(&xecfg, 0, sizeof(xecfg));
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xecfg.ctxlen = 3;
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ecb.out_hunk = NULL;
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ecb.out_line = outf;
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ret = xdi_diff(&minus, &plus, &xpp, &xecfg, &ecb);
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free(minus.ptr);
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free(plus.ptr);
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return ret;
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}
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int cmd_rerere(int argc, const char **argv, const char *prefix)
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{
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struct string_list merge_rr = STRING_LIST_INIT_DUP;
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int i, autoupdate = -1, flags = 0;
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struct option options[] = {
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OPT_SET_INT(0, "rerere-autoupdate", &autoupdate,
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N_("register clean resolutions in index"), 1),
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OPT_END(),
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};
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argc = parse_options(argc, argv, prefix, options, rerere_usage, 0);
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git_config(git_xmerge_config, NULL);
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if (autoupdate == 1)
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flags = RERERE_AUTOUPDATE;
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if (autoupdate == 0)
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flags = RERERE_NOAUTOUPDATE;
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if (argc < 1)
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return repo_rerere(the_repository, flags);
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if (!strcmp(argv[0], "forget")) {
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struct pathspec pathspec;
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if (argc < 2)
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warning(_("'git rerere forget' without paths is deprecated"));
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parse_pathspec(&pathspec, 0, PATHSPEC_PREFER_CWD,
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prefix, argv + 1);
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return rerere_forget(the_repository, &pathspec);
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}
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if (!strcmp(argv[0], "clear")) {
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rerere_clear(&merge_rr);
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} else if (!strcmp(argv[0], "gc"))
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rerere_gc(&merge_rr);
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else if (!strcmp(argv[0], "status")) {
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if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
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return 0;
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for (i = 0; i < merge_rr.nr; i++)
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printf("%s\n", merge_rr.items[i].string);
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} else if (!strcmp(argv[0], "remaining")) {
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rerere_remaining(the_repository, &merge_rr);
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for (i = 0; i < merge_rr.nr; i++) {
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if (merge_rr.items[i].util != RERERE_RESOLVED)
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printf("%s\n", merge_rr.items[i].string);
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else
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/* prepare for later call to
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* string_list_clear() */
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merge_rr.items[i].util = NULL;
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}
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} else if (!strcmp(argv[0], "diff")) {
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if (setup_rerere(&merge_rr, flags | RERERE_READONLY) < 0)
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return 0;
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for (i = 0; i < merge_rr.nr; i++) {
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const char *path = merge_rr.items[i].string;
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const struct rerere_id *id = merge_rr.items[i].util;
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if (diff_two(rerere_path(id, "preimage"), path, path, path))
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die(_("unable to generate diff for '%s'"), rerere_path(id, NULL));
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}
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} else
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usage_with_options(rerere_usage, options);
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string_list_clear(&merge_rr, 1);
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return 0;
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}
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