diff options
| -rw-r--r-- | Documentation/diff-config.txt | 8 | ||||
| -rw-r--r-- | Documentation/diff-options.txt | 8 | ||||
| -rw-r--r-- | diff.c | 61 | ||||
| -rw-r--r-- | diff.h | 1 | ||||
| -rwxr-xr-x | t/t4047-diff-dirstat.sh | 100 |
5 files changed, 176 insertions, 2 deletions
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt index 228329d4ad..1aed79e7dc 100644 --- a/Documentation/diff-config.txt +++ b/Documentation/diff-config.txt @@ -23,6 +23,14 @@ diff.dirstat:: the amount of pure code movements within a file. In other words, rearranging lines in a file is not counted as much as other changes. This is the default behavior when no parameter is given. +`lines`;; + Compute the dirstat numbers by doing the regular line-based diff + analysis, and summing the removed/added line counts. (For binary + files, count 64-byte chunks instead, since binary files have no + natural concept of lines). This is a more expensive `--dirstat` + behavior than the `changes` behavior, but it does count rearranged + lines within a file as much as other changes. The resulting output + is consistent with what you get from the other `--*stat` options. `files`;; Compute the dirstat numbers by counting the number of files changed. Each changed file counts equally in the dirstat analysis. This is diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index dc023523ee..bddceb06b7 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -81,6 +81,14 @@ endif::git-format-patch[] the amount of pure code movements within a file. In other words, rearranging lines in a file is not counted as much as other changes. This is the default behavior when no parameter is given. +`lines`;; + Compute the dirstat numbers by doing the regular line-based diff + analysis, and summing the removed/added line counts. (For binary + files, count 64-byte chunks instead, since binary files have no + natural concept of lines). This is a more expensive `--dirstat` + behavior than the `changes` behavior, but it does count rearranged + lines within a file as much as other changes. The resulting output + is consistent with what you get from the other `--*stat` options. `files`;; Compute the dirstat numbers by counting the number of files changed. Each changed file counts equally in the dirstat analysis. This is @@ -73,9 +73,15 @@ static int parse_dirstat_params(struct diff_options *options, const char *params while (*p) { if (!prefixcmp(p, "changes")) { p += 7; + DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); + DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); + } else if (!prefixcmp(p, "lines")) { + p += 5; + DIFF_OPT_SET(options, DIRSTAT_BY_LINE); DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); } else if (!prefixcmp(p, "files")) { p += 5; + DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); DIFF_OPT_SET(options, DIRSTAT_BY_FILE); } else if (!prefixcmp(p, "noncumulative")) { p += 13; @@ -1671,6 +1677,50 @@ found_damage: gather_dirstat(options, &dir, changed, "", 0); } +static void show_dirstat_by_line(struct diffstat_t *data, struct diff_options *options) +{ + int i; + unsigned long changed; + struct dirstat_dir dir; + + if (data->nr == 0) + return; + + dir.files = NULL; + dir.alloc = 0; + dir.nr = 0; + dir.permille = options->dirstat_permille; + dir.cumulative = DIFF_OPT_TST(options, DIRSTAT_CUMULATIVE); + + changed = 0; + for (i = 0; i < data->nr; i++) { + struct diffstat_file *file = data->files[i]; + unsigned long damage = file->added + file->deleted; + if (file->is_binary) + /* + * binary files counts bytes, not lines. Must find some + * way to normalize binary bytes vs. textual lines. + * The following heuristic assumes that there are 64 + * bytes per "line". + * This is stupid and ugly, but very cheap... + */ + damage = (damage + 63) / 64; + ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc); + dir.files[dir.nr].name = file->name; + dir.files[dir.nr].changed = damage; + changed += damage; + dir.nr++; + } + + /* This can happen even with many files, if everything was renames */ + if (!changed) + return; + + /* Show all directories with more than x% of the changes */ + qsort(dir.files, dir.nr, sizeof(dir.files[0]), dirstat_compare); + gather_dirstat(options, &dir, changed, "", 0); +} + static void free_diffstat_info(struct diffstat_t *diffstat) { int i; @@ -4088,6 +4138,7 @@ 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; + int dirstat_by_line = 0; /* * Order: raw, stat, summary, patch @@ -4108,7 +4159,11 @@ void diff_flush(struct diff_options *options) separator++; } - if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT)) { + if (output_format & DIFF_FORMAT_DIRSTAT && DIFF_OPT_TST(options, DIRSTAT_BY_LINE)) + dirstat_by_line = 1; + + if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT) || + dirstat_by_line) { struct diffstat_t diffstat; memset(&diffstat, 0, sizeof(struct diffstat_t)); @@ -4123,10 +4178,12 @@ void diff_flush(struct diff_options *options) show_stats(&diffstat, options); if (output_format & DIFF_FORMAT_SHORTSTAT) show_shortstats(&diffstat, options); + if (output_format & DIFF_FORMAT_DIRSTAT) + show_dirstat_by_line(&diffstat, options); free_diffstat_info(&diffstat); separator++; } - if (output_format & DIFF_FORMAT_DIRSTAT) + if ((output_format & DIFF_FORMAT_DIRSTAT) && !dirstat_by_line) show_dirstat(options); if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) { @@ -78,6 +78,7 @@ typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data) #define DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES (1 << 25) #define DIFF_OPT_IGNORE_DIRTY_SUBMODULES (1 << 26) #define DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG (1 << 27) +#define DIFF_OPT_DIRSTAT_BY_LINE (1 << 28) #define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag) #define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag) diff --git a/t/t4047-diff-dirstat.sh b/t/t4047-diff-dirstat.sh index 4b25e10030..b8ad92a354 100755 --- a/t/t4047-diff-dirstat.sh +++ b/t/t4047-diff-dirstat.sh @@ -839,4 +839,104 @@ test_expect_success '--dirstat=files,cumulative,27.09' ' test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC ' +cat <<EOF >expect_diff_dirstat + 10.6% dst/copy/changed/ + 10.6% dst/copy/rearranged/ + 10.6% dst/copy/unchanged/ + 10.6% dst/move/changed/ + 10.6% dst/move/rearranged/ + 10.6% dst/move/unchanged/ + 10.6% src/move/changed/ + 10.6% src/move/rearranged/ + 10.6% src/move/unchanged/ +EOF + +cat <<EOF >expect_diff_dirstat_M + 5.2% changed/ + 26.3% dst/copy/changed/ + 26.3% dst/copy/rearranged/ + 26.3% dst/copy/unchanged/ + 5.2% dst/move/changed/ + 5.2% dst/move/rearranged/ + 5.2% rearranged/ +EOF + +cat <<EOF >expect_diff_dirstat_CC + 16.6% changed/ + 16.6% dst/copy/changed/ + 16.6% dst/copy/rearranged/ + 16.6% dst/move/changed/ + 16.6% dst/move/rearranged/ + 16.6% rearranged/ +EOF + +test_expect_success '--dirstat=lines' ' + git diff --dirstat=lines HEAD^..HEAD >actual_diff_dirstat && + test_cmp expect_diff_dirstat actual_diff_dirstat && + git diff --dirstat=lines -M HEAD^..HEAD >actual_diff_dirstat_M && + test_cmp expect_diff_dirstat_M actual_diff_dirstat_M && + git diff --dirstat=lines -C -C HEAD^..HEAD >actual_diff_dirstat_CC && + test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC +' + +test_expect_success 'diff.dirstat=lines' ' + git -c diff.dirstat=lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat && + test_cmp expect_diff_dirstat actual_diff_dirstat && + git -c diff.dirstat=lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M && + test_cmp expect_diff_dirstat_M actual_diff_dirstat_M && + git -c diff.dirstat=lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC && + test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC +' + +cat <<EOF >expect_diff_dirstat + 2.1% changed/ + 10.6% dst/copy/changed/ + 10.6% dst/copy/rearranged/ + 10.6% dst/copy/unchanged/ + 10.6% dst/move/changed/ + 10.6% dst/move/rearranged/ + 10.6% dst/move/unchanged/ + 2.1% rearranged/ + 10.6% src/move/changed/ + 10.6% src/move/rearranged/ + 10.6% src/move/unchanged/ +EOF + +cat <<EOF >expect_diff_dirstat_M + 5.2% changed/ + 26.3% dst/copy/changed/ + 26.3% dst/copy/rearranged/ + 26.3% dst/copy/unchanged/ + 5.2% dst/move/changed/ + 5.2% dst/move/rearranged/ + 5.2% rearranged/ +EOF + +cat <<EOF >expect_diff_dirstat_CC + 16.6% changed/ + 16.6% dst/copy/changed/ + 16.6% dst/copy/rearranged/ + 16.6% dst/move/changed/ + 16.6% dst/move/rearranged/ + 16.6% rearranged/ +EOF + +test_expect_success '--dirstat=lines,0' ' + git diff --dirstat=lines,0 HEAD^..HEAD >actual_diff_dirstat && + test_cmp expect_diff_dirstat actual_diff_dirstat && + git diff --dirstat=lines,0 -M HEAD^..HEAD >actual_diff_dirstat_M && + test_cmp expect_diff_dirstat_M actual_diff_dirstat_M && + git diff --dirstat=lines,0 -C -C HEAD^..HEAD >actual_diff_dirstat_CC && + test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC +' + +test_expect_success 'diff.dirstat=0,lines' ' + git -c diff.dirstat=0,lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat && + test_cmp expect_diff_dirstat actual_diff_dirstat && + git -c diff.dirstat=0,lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M && + test_cmp expect_diff_dirstat_M actual_diff_dirstat_M && + git -c diff.dirstat=0,lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC && + test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC +' + test_done |