documentation: help: add "man.<tool>.path" config variable

diff --git a/diff.c b/diff.c
index 8022e678d1fc26eab75d73d01110d635fba11fd7..3632b552b2eae5bda3cdec3323f3a68907c6f09a 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -991,18 +991,23 @@ static void show_numstat(struct diffstat_t* data, struct diff_options *options)
        }
 }
 
-struct diffstat_dir {
-       struct diffstat_file **files;
-       int nr, percent, cumulative;
+struct dirstat_file {
+       const char *name;
+       unsigned long changed;
 };
 
-static long gather_dirstat(FILE *file, struct diffstat_dir *dir, unsigned long changed, const char *base, int baselen)
+struct dirstat_dir {
+       struct dirstat_file *files;
+       int alloc, nr, percent, cumulative;
+};
+
+static long gather_dirstat(FILE *file, struct dirstat_dir *dir, unsigned long changed, const char *base, int baselen)
 {
        unsigned long this_dir = 0;
        unsigned int sources = 0;
 
        while (dir->nr) {
-               struct diffstat_file *f = *dir->files;
+               struct dirstat_file *f = dir->files;
                int namelen = strlen(f->name);
                unsigned long this;
                char *slash;
@@ -1017,10 +1022,7 @@ static long gather_dirstat(FILE *file, struct diffstat_dir *dir, unsigned long c
                        this = gather_dirstat(file, dir, changed, f->name, newbaselen);
                        sources++;
                } else {
-                       if (f->is_unmerged || f->is_binary)
-                               this = 0;
-                       else
-                               this = f->added + f->deleted;
+                       this = f->changed;
                        dir->files++;
                        dir->nr--;
                        sources += 2;
@@ -1048,19 +1050,58 @@ static long gather_dirstat(FILE *file, struct diffstat_dir *dir, unsigned long c
        return this_dir;
 }
 
-static void show_dirstat(struct diffstat_t *data, struct diff_options *options)
+static void show_dirstat(struct diff_options *options)
 {
        int i;
        unsigned long changed;
-       struct diffstat_dir dir;
+       struct dirstat_dir dir;
+       struct diff_queue_struct *q = &diff_queued_diff;
+
+       dir.files = NULL;
+       dir.alloc = 0;
+       dir.nr = 0;
+       dir.percent = options->dirstat_percent;
+       dir.cumulative = options->output_format & DIFF_FORMAT_CUMULATIVE;
 
-       /* Calculate total changes */
        changed = 0;
-       for (i = 0; i < data->nr; i++) {
-               if (data->files[i]->is_binary || data->files[i]->is_unmerged)
+       for (i = 0; i < q->nr; i++) {
+               struct diff_filepair *p = q->queue[i];
+               const char *name;
+               unsigned long copied, added, damage;
+
+               name = p->one->path ? p->one->path : p->two->path;
+
+               if (DIFF_FILE_VALID(p->one) && DIFF_FILE_VALID(p->two)) {
+                       diff_populate_filespec(p->one, 0);
+                       diff_populate_filespec(p->two, 0);
+                       diffcore_count_changes(p->one, p->two, NULL, NULL, 0,
+                                              &copied, &added);
+                       diff_free_filespec_data(p->one);
+                       diff_free_filespec_data(p->two);
+               } else if (DIFF_FILE_VALID(p->one)) {
+                       diff_populate_filespec(p->one, 1);
+                       copied = added = 0;
+                       diff_free_filespec_data(p->one);
+               } else if (DIFF_FILE_VALID(p->two)) {
+                       diff_populate_filespec(p->two, 1);
+                       copied = 0;
+                       added = p->two->size;
+                       diff_free_filespec_data(p->two);
+               } else
                        continue;
-               changed += data->files[i]->added;
-               changed += data->files[i]->deleted;
+
+               /*
+                * Original minus copied is the removed material,
+                * added is the new material.  They are both damages
+                * made to the preimage.
+                */
+               damage = (p->one->size - copied) + added;
+
+               ALLOC_GROW(dir.files, dir.nr + 1, dir.alloc);
+               dir.files[dir.nr].name = name;
+               dir.files[dir.nr].changed = damage;
+               changed += damage;
+               dir.nr++;
        }
 
        /* This can happen even with many files, if everything was renames */
@@ -1068,10 +1109,6 @@ static void show_dirstat(struct diffstat_t *data, struct diff_options *options)
                return;
 
        /* Show all directories with more than x% of the changes */
-       dir.files = data->files;
-       dir.nr = data->nr;
-       dir.percent = options->dirstat_percent;
-       dir.cumulative = options->output_format & DIFF_FORMAT_CUMULATIVE;
        gather_dirstat(options->file, &dir, changed, "", 0);
 }
 
@@ -3095,7 +3132,7 @@ void diff_flush(struct diff_options *options)
                separator++;
        }
 
-       if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT|DIFF_FORMAT_DIRSTAT)) {
+       if (output_format & (DIFF_FORMAT_DIFFSTAT|DIFF_FORMAT_SHORTSTAT|DIFF_FORMAT_NUMSTAT)) {
                struct diffstat_t diffstat;
 
                memset(&diffstat, 0, sizeof(struct diffstat_t));
@@ -3105,8 +3142,6 @@ void diff_flush(struct diff_options *options)
                        if (check_pair_status(p))
                                diff_flush_stat(p, options, &diffstat);
                }
-               if (output_format & DIFF_FORMAT_DIRSTAT)
-                       show_dirstat(&diffstat, options);
                if (output_format & DIFF_FORMAT_NUMSTAT)
                        show_numstat(&diffstat, options);
                if (output_format & DIFF_FORMAT_DIFFSTAT)
@@ -3116,6 +3151,8 @@ void diff_flush(struct diff_options *options)
                free_diffstat_info(&diffstat);
                separator++;
        }
+       if (output_format & DIFF_FORMAT_DIRSTAT)
+               show_dirstat(options);
 
        if (output_format & DIFF_FORMAT_SUMMARY && !is_summary_empty(q)) {
                for (i = 0; i < q->nr; i++)