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Merge branch 'jc/combine' into next
* jc/combine: combine-diff: fix hunks at the end (take #2). combine-diff: do not lose hunks with only deletion at end.
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commit
72c159f642
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@ -243,7 +243,7 @@ static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
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* started by showing sline[lno] (possibly showing the lost
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* lines attached to it first).
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*/
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for (lno = 0, p_lno = 1; lno < cnt; lno++) {
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for (lno = 0, p_lno = 1; lno <= cnt; lno++) {
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struct lline *ll;
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sline[lno].p_lno[n] = p_lno;
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@ -254,7 +254,7 @@ static void combine_diff(const unsigned char *parent, mmfile_t *result_file,
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p_lno++; /* '-' means parent had it */
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ll = ll->next;
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}
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if (!(sline[lno].flag & nmask))
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if (lno < cnt && !(sline[lno].flag & nmask))
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p_lno++; /* no '+' means parent had it */
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}
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sline[lno].p_lno[n] = p_lno; /* trailer */
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@ -301,14 +301,14 @@ static unsigned long find_next(struct sline *sline,
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* lines that are not interesting to interesting() function
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* that are surrounded by interesting() ones.
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*/
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while (i < cnt)
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while (i <= cnt)
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if (uninteresting
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? !(sline[i].flag & mark)
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: (sline[i].flag & mark))
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return i;
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else
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i++;
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return cnt;
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return i;
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}
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static int give_context(struct sline *sline, unsigned long cnt, int num_parent)
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@ -327,10 +327,10 @@ static int give_context(struct sline *sline, unsigned long cnt, int num_parent)
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* lines but they are treated as "interesting" in the end.
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*/
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i = find_next(sline, mark, 0, cnt, 0);
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if (cnt <= i)
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if (cnt < i)
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return 0;
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while (i < cnt) {
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while (i <= cnt) {
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unsigned long j = (context < i) ? (i - context) : 0;
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unsigned long k;
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@ -343,7 +343,7 @@ static int give_context(struct sline *sline, unsigned long cnt, int num_parent)
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* next uninteresting one start?
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*/
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j = find_next(sline, mark, i, cnt, 1);
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if (cnt <= j)
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if (cnt < j)
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break; /* the rest are all interesting */
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/* lookahead context lines */
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@ -365,7 +365,7 @@ static int give_context(struct sline *sline, unsigned long cnt, int num_parent)
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* the trailing edge a bit.
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*/
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i = k;
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k = (j + context < cnt) ? j + context : cnt;
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k = (j + context < cnt+1) ? j + context : cnt+1;
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while (j < k)
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sline[j++].flag |= mark;
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}
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@ -380,7 +380,7 @@ static int make_hunks(struct sline *sline, unsigned long cnt,
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unsigned long i;
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int has_interesting = 0;
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for (i = 0; i < cnt; i++) {
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for (i = 0; i <= cnt; i++) {
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if (interesting(&sline[i], all_mask))
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sline[i].flag |= mark;
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else
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@ -394,15 +394,15 @@ static int make_hunks(struct sline *sline, unsigned long cnt,
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* parent, mark that uninteresting.
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*/
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i = 0;
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while (i < cnt) {
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while (i <= cnt) {
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unsigned long j, hunk_begin, hunk_end;
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unsigned long same_diff;
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while (i < cnt && !(sline[i].flag & mark))
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while (i <= cnt && !(sline[i].flag & mark))
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i++;
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if (cnt <= i)
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if (cnt < i)
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break; /* No more interesting hunks */
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hunk_begin = i;
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for (j = i + 1; j < cnt; j++) {
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for (j = i + 1; j <= cnt; j++) {
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if (!(sline[j].flag & mark)) {
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/* Look beyond the end to see if there
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* is an interesting line after this
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@ -412,8 +412,8 @@ static int make_hunks(struct sline *sline, unsigned long cnt,
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int contin = 0;
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la = adjust_hunk_tail(sline, all_mask,
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hunk_begin, j);
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la = (la + context < cnt) ?
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(la + context) : cnt;
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la = (la + context < cnt + 1) ?
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(la + context) : cnt + 1;
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while (j <= --la) {
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if (sline[la].flag & mark) {
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contin = 1;
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@ -507,17 +507,23 @@ static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
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while (1) {
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struct sline *sl = &sline[lno];
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int hunk_end;
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while (lno < cnt && !(sline[lno].flag & mark))
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int rlines;
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while (lno <= cnt && !(sline[lno].flag & mark))
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lno++;
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if (cnt <= lno)
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if (cnt < lno)
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break;
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for (hunk_end = lno + 1; hunk_end < cnt; hunk_end++)
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if (!(sline[hunk_end].flag & mark))
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break;
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else {
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for (hunk_end = lno + 1; hunk_end <= cnt; hunk_end++)
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if (!(sline[hunk_end].flag & mark))
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break;
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}
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rlines = hunk_end - lno;
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if (cnt < hunk_end)
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rlines--; /* pointing at the last delete hunk */
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for (i = 0; i <= num_parent; i++) putchar(combine_marker);
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for (i = 0; i < num_parent; i++)
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show_parent_lno(sline, lno, hunk_end, cnt, i);
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printf(" +%lu,%lu ", lno+1, hunk_end-lno);
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printf(" +%lu,%lu ", lno+1, rlines);
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for (i = 0; i <= num_parent; i++) putchar(combine_marker);
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putchar('\n');
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while (lno < hunk_end) {
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@ -536,6 +542,8 @@ static void dump_sline(struct sline *sline, unsigned long cnt, int num_parent)
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puts(ll->line);
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ll = ll->next;
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}
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if (cnt < lno)
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break;
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p_mask = 1;
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for (j = 0; j < num_parent; j++) {
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if (p_mask & sl->flag)
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@ -560,7 +568,7 @@ static void reuse_combine_diff(struct sline *sline, unsigned long cnt,
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imask = (1UL<<i);
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jmask = (1UL<<j);
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for (lno = 0; lno < cnt; lno++) {
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for (lno = 0; lno <= cnt; lno++) {
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struct lline *ll = sline->lost_head;
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sline->p_lno[i] = sline->p_lno[j];
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while (ll) {
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@ -632,10 +640,10 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
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if (result_size && result[result_size-1] != '\n')
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cnt++; /* incomplete line */
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sline = xcalloc(cnt+1, sizeof(*sline));
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sline = xcalloc(cnt+2, sizeof(*sline));
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ep = result;
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sline[0].bol = result;
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for (lno = 0; lno <= cnt; lno++) {
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for (lno = 0; lno <= cnt + 1; lno++) {
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sline[lno].lost_tail = &sline[lno].lost_head;
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sline[lno].flag = 0;
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}
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@ -653,8 +661,11 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
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result_file.ptr = result;
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result_file.size = result_size;
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sline[0].p_lno = xcalloc((cnt+1) * num_parent, sizeof(unsigned long));
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for (lno = 0; lno < cnt; lno++)
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/* Even p_lno[cnt+1] is valid -- that is for the end line number
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* for deletion hunk at the end.
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*/
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sline[0].p_lno = xcalloc((cnt+2) * num_parent, sizeof(unsigned long));
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for (lno = 0; lno <= cnt; lno++)
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sline[lno+1].p_lno = sline[lno].p_lno + num_parent;
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for (i = 0; i < num_parent; i++) {
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