From: Junio C Hamano Date: Wed, 5 Jul 2006 23:31:24 +0000 (-0700) Subject: Merge branch 'th/diff' X-Git-Tag: v1.4.2-rc1~85 X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=0c926a3d9c34396636c2fea7a0cd5a4200ea298b;p=git.git Merge branch 'th/diff' * th/diff: builtin-diff: turn recursive on when defaulting to --patch format. t4013: note improvements brought by the new output code. t4013: add format-patch tests. format-patch: fix diff format option implementation combine-diff.c: type sanity. t4013 test updates for new output code. Fix some more diff options changes. Fix diff-tree -s log --raw: Don't descend into subdirectories by default diff-tree: Use ---\n as a message separator Print empty line between raw, stat, summary and patch t4013: add more tests around -c and --cc whatchanged: Default to DIFF_FORMAT_RAW Don't xcalloc() struct diffstat_t Add msg_sep to diff_options DIFF_FORMAT_RAW is not default anymore Set default diff output format after parsing command line Make --raw option available for all diff commands Merge with_raw, with_stat and summary variables to output_format t4013: add tests for diff/log family output options. --- 0c926a3d9c34396636c2fea7a0cd5a4200ea298b diff --cc diff.c index 428ff786e,1c131ff4d..507e4019e --- a/diff.c +++ b/diff.c @@@ -2104,197 -2095,96 +2095,235 @@@ static void diff_summary(struct diff_fi } } +struct patch_id_t { + struct xdiff_emit_state xm; + SHA_CTX *ctx; + int patchlen; +}; + +static int remove_space(char *line, int len) +{ + int i; + char *dst = line; + unsigned char c; + + for (i = 0; i < len; i++) + if (!isspace((c = line[i]))) + *dst++ = c; + + return dst - line; +} + +static void patch_id_consume(void *priv, char *line, unsigned long len) +{ + struct patch_id_t *data = priv; + int new_len; + + /* Ignore line numbers when computing the SHA1 of the patch */ + if (!strncmp(line, "@@ -", 4)) + return; + + new_len = remove_space(line, len); + + SHA1_Update(data->ctx, line, new_len); + data->patchlen += new_len; +} + +/* returns 0 upon success, and writes result into sha1 */ +static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1) +{ + struct diff_queue_struct *q = &diff_queued_diff; + int i; + SHA_CTX ctx; + struct patch_id_t data; + char buffer[PATH_MAX * 4 + 20]; + + SHA1_Init(&ctx); + memset(&data, 0, sizeof(struct patch_id_t)); + data.ctx = &ctx; + data.xm.consume = patch_id_consume; + + for (i = 0; i < q->nr; i++) { + xpparam_t xpp; + xdemitconf_t xecfg; + xdemitcb_t ecb; + mmfile_t mf1, mf2; + struct diff_filepair *p = q->queue[i]; + int len1, len2; + + if (p->status == 0) + return error("internal diff status error"); + if (p->status == DIFF_STATUS_UNKNOWN) + continue; + if (diff_unmodified_pair(p)) + continue; + if ((DIFF_FILE_VALID(p->one) && S_ISDIR(p->one->mode)) || + (DIFF_FILE_VALID(p->two) && S_ISDIR(p->two->mode))) + continue; + if (DIFF_PAIR_UNMERGED(p)) + continue; + + diff_fill_sha1_info(p->one); + diff_fill_sha1_info(p->two); + if (fill_mmfile(&mf1, p->one) < 0 || + fill_mmfile(&mf2, p->two) < 0) + return error("unable to read files to diff"); + + /* Maybe hash p->two? into the patch id? */ + if (mmfile_is_binary(&mf2)) + continue; + + len1 = remove_space(p->one->path, strlen(p->one->path)); + len2 = remove_space(p->two->path, strlen(p->two->path)); + if (p->one->mode == 0) + len1 = snprintf(buffer, sizeof(buffer), + "diff--gita/%.*sb/%.*s" + "newfilemode%06o" + "---/dev/null" + "+++b/%.*s", + len1, p->one->path, + len2, p->two->path, + p->two->mode, + len2, p->two->path); + else if (p->two->mode == 0) + len1 = snprintf(buffer, sizeof(buffer), + "diff--gita/%.*sb/%.*s" + "deletedfilemode%06o" + "---a/%.*s" + "+++/dev/null", + len1, p->one->path, + len2, p->two->path, + p->one->mode, + len1, p->one->path); + else + len1 = snprintf(buffer, sizeof(buffer), + "diff--gita/%.*sb/%.*s" + "---a/%.*s" + "+++b/%.*s", + len1, p->one->path, + len2, p->two->path, + len1, p->one->path, + len2, p->two->path); + SHA1_Update(&ctx, buffer, len1); + + xpp.flags = XDF_NEED_MINIMAL; + xecfg.ctxlen = 3; + xecfg.flags = XDL_EMIT_FUNCNAMES; + ecb.outf = xdiff_outf; + ecb.priv = &data; + xdl_diff(&mf1, &mf2, &xpp, &xecfg, &ecb); + } + + SHA1_Final(sha1, &ctx); + return 0; +} + +int diff_flush_patch_id(struct diff_options *options, unsigned char *sha1) +{ + struct diff_queue_struct *q = &diff_queued_diff; + int i; + int result = diff_get_patch_id(options, sha1); + + for (i = 0; i < q->nr; i++) + diff_free_filepair(q->queue[i]); + + free(q->queue); + q->queue = NULL; + q->nr = q->alloc = 0; + + return result; +} + - void diff_flush(struct diff_options *options) + static int is_summary_empty(const struct diff_queue_struct *q) { - struct diff_queue_struct *q = &diff_queued_diff; int i; - int diff_output_format = options->output_format; - struct diffstat_t *diffstat = NULL; - if (diff_output_format == DIFF_FORMAT_DIFFSTAT || options->with_stat) { - diffstat = xcalloc(sizeof (struct diffstat_t), 1); - diffstat->xm.consume = diffstat_consume; + for (i = 0; i < q->nr; i++) { + const struct diff_filepair *p = q->queue[i]; + + switch (p->status) { + case DIFF_STATUS_DELETED: + case DIFF_STATUS_ADDED: + case DIFF_STATUS_COPIED: + case DIFF_STATUS_RENAMED: + return 0; + default: + if (p->score) + return 0; + if (p->one->mode && p->two->mode && + p->one->mode != p->two->mode) + return 0; + break; + } } + return 1; + } + + void diff_flush(struct diff_options *options) + { + struct diff_queue_struct *q = &diff_queued_diff; + int i, output_format = options->output_format; + int separator = 0; + + /* + * Order: raw, stat, summary, patch + * or: name/name-status/checkdiff (other bits clear) + */ + if (!q->nr) + goto free_queue; - if (options->with_raw) { + if (output_format & (DIFF_FORMAT_RAW | + DIFF_FORMAT_NAME | + DIFF_FORMAT_NAME_STATUS | + DIFF_FORMAT_CHECKDIFF)) { for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; - flush_one_pair(p, DIFF_FORMAT_RAW, options, NULL); + if (check_pair_status(p)) + flush_one_pair(p, options); } - putchar(options->line_termination); + separator++; } - if (options->with_stat) { + + if (output_format & DIFF_FORMAT_DIFFSTAT) { + struct diffstat_t diffstat; + + memset(&diffstat, 0, sizeof(struct diffstat_t)); + diffstat.xm.consume = diffstat_consume; for (i = 0; i < q->nr; i++) { struct diff_filepair *p = q->queue[i]; - flush_one_pair(p, DIFF_FORMAT_DIFFSTAT, options, - diffstat); + if (check_pair_status(p)) + diff_flush_stat(p, options, &diffstat); } - show_stats(diffstat); - free(diffstat); - diffstat = NULL; - if (options->summary) - for (i = 0; i < q->nr; i++) - diff_summary(q->queue[i]); - if (options->stat_sep) - fputs(options->stat_sep, stdout); - else - putchar(options->line_termination); - } - for (i = 0; i < q->nr; i++) { - struct diff_filepair *p = q->queue[i]; - flush_one_pair(p, diff_output_format, options, diffstat); + show_stats(&diffstat); + separator++; } - if (diffstat) { - show_stats(diffstat); - free(diffstat); + if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) { + for (i = 0; i < q->nr; i++) + diff_summary(q->queue[i]); + separator++; } - for (i = 0; i < q->nr; i++) { - if (diffstat && options->summary) - diff_summary(q->queue[i]); - diff_free_filepair(q->queue[i]); + if (output_format & DIFF_FORMAT_PATCH) { + if (separator) { + if (options->stat_sep) { + /* attach patch instead of inline */ + fputs(options->stat_sep, stdout); + } else { + putchar(options->line_termination); + } + } + + for (i = 0; i < q->nr; i++) { + struct diff_filepair *p = q->queue[i]; + if (check_pair_status(p)) + diff_flush_patch(p, options); + } } + for (i = 0; i < q->nr; i++) + diff_free_filepair(q->queue[i]); + free_queue: free(q->queue); q->queue = NULL; q->nr = q->alloc = 0;