mirror of
https://github.com/MidnightCommander/mc
synced 2024-12-22 20:36:50 +03:00
added merge mechanism
Signed-off-by: Ilia Maslakov <il.smind@gmail.com>
This commit is contained in:
Ilia Maslakov
parent
7e5c75c906
commit
e5dc79a441
@ -375,6 +375,7 @@ DiffRedo = ctrl-r
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DiffNextHunk = n; enter; space
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DiffPrevHunk = p; backspace
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DiffGoto = g; shift-g
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DiffSave = f2
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DiffEditCurrent = f4
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DiffEditOther = f14
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DiffMergeCurrentHunk = f5
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@ -444,6 +444,8 @@
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#define CK_DiffEnd 9032
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#define CK_DiffQuit 9033
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#define CK_DiffHelp 9034
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#define CK_DiffMergeCurrentHunk 9035
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#define CK_DiffSave 9036
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/*
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Process a block through a shell command: CK_Pipe_Block(i) executes shell_cmd[i].
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@ -157,6 +157,32 @@ static dview_select_encoding (WDiff * dview)
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#endif
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}
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static gboolean
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rewrite_backup_content (const char *from_file_name, const char *to_file_name)
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{
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FILE *backup_fd;
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char *contents;
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gsize length;
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if (!g_file_get_contents (from_file_name, &contents, &length, NULL))
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return FALSE;
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backup_fd = fopen (to_file_name, "w");
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if (backup_fd == NULL)
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{
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g_free (contents);
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return FALSE;
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}
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fwrite ((const void *) contents, length, 1, backup_fd);
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fflush (backup_fd);
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fclose (backup_fd);
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g_free (contents);
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return TRUE;
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}
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/* buffered I/O ************************************************************* */
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/**
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@ -1241,20 +1267,15 @@ hdiff_scan (const char *s, int m, const char *t, int n, int min, GArray * hdiff,
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BRACKET b;
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/* dumbscan (single horizontal diff) -- does not compress whitespace */
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for (i = 0; i < m && i < n && s[i] == t[i]; i++);
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for (; m > i && n > i && s[m - 1] == t[n - 1]; m--, n--);
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for (i = 0; i < m && i < n && s[i] == t[i]; i++)
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{
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}
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for (; m > i && n > i && s[m - 1] == t[n - 1]; m--, n--)
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{
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}
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b[0].off = i;
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b[0].len = m - i;
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b[1].off = i;
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b[1].len = n - i;
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/* smartscan (multiple horizontal diff) */
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return hdiff_multi (s, t, b, min, hdiff, depth);
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}
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@ -1972,6 +1993,12 @@ find_prev_hunk (const GArray * a, int pos)
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{
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pos--;
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}
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while (pos > 0 && ((DIFFLN *) &g_array_index (a, DIFFLN, pos))->ch != EQU_CH)
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{
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pos--;
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}
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if (pos > 0 && pos < a->len)
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pos++;
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#else
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while (pos > 0 && ((DIFFLN *) &g_array_index (a, DIFFLN, pos - 1))->ch == EQU_CH)
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{
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@ -1991,6 +2018,7 @@ find_prev_hunk (const GArray * a, int pos)
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static int
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find_next_hunk (const GArray * a, size_t pos)
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{
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int result = 0;
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while (pos < a->len && ((DIFFLN *) &g_array_index (a, DIFFLN, pos))->ch != EQU_CH)
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{
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pos++;
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@ -2002,6 +2030,214 @@ find_next_hunk (const GArray * a, size_t pos)
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return pos;
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}
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/**
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* Find start and end lines of the current hunk.
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*
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* \param dview - widget WDiff
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* \return boolean and
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* start_line1 first line of current hunk (file[0])
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* end_line1 last line of current hunk (file[0])
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* start_line1 first line of current hunk (file[0])
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* end_line1 last line of current hunk (file[0])
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*/
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static int
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get_current_hunk (WDiff * dview, int *start_line1, int *end_line1, int *start_line2, int *end_line2)
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{
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const GArray *a0 = dview->a[0];
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const GArray *a1 = dview->a[1];
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size_t tmp, pos;
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int ch;
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int res = 0;
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*start_line1 = 1;
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*start_line2 = 1;
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*end_line1 = 1;
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*end_line2 = 1;
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pos = dview->skip_rows;
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ch = ((DIFFLN *) &g_array_index (a0, DIFFLN, pos))->ch;
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if (ch != EQU_CH)
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{
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switch (ch)
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{
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case ADD_CH:
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res = DIFF_DEL;
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break;
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case DEL_CH:
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res = DIFF_ADD;
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break;
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case CHG_CH:
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res = DIFF_CHG;
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break;
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}
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while (pos > 0 && ((DIFFLN *) &g_array_index (a0, DIFFLN, pos))->ch != EQU_CH)
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{
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pos--;
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}
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if (pos > 0)
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{
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*start_line1 = ((DIFFLN *) &g_array_index (a0, DIFFLN, pos))->line + 1;
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*start_line2 = ((DIFFLN *) &g_array_index (a1, DIFFLN, pos))->line + 1;
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}
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pos = dview->skip_rows;
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while (pos < a0->len && ((DIFFLN *) &g_array_index (a0, DIFFLN, pos))->ch != EQU_CH)
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{
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int l0, l1;
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l0 = ((DIFFLN *) &g_array_index (a0, DIFFLN, pos))->line;
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l1 = ((DIFFLN *) &g_array_index (a1, DIFFLN, pos))->line;
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if (l0 > 0)
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*end_line1 = max (*start_line1, l0);
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if (l1 > 0)
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*end_line2 = max (*start_line2, l1);
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pos++;
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}
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}
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return res;
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}
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static void
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dview_remove_hunk (WDiff * dview, FILE * merge_file, int from1, int to1)
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{
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int line;
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char buf[BUF_10K];
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FILE *f0;
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f0 = fopen (dview->file[0], "r");
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line = 0;
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while (fgets (buf, sizeof (buf), f0) && line < from1 - 1)
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{
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line++;
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fputs (buf, merge_file);
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}
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while (fgets (buf, sizeof (buf), f0))
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{
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line++;
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if (line >= to1)
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fputs (buf, merge_file);
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}
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fclose (f0);
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}
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static void
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dview_add_hunk (WDiff * dview, FILE * merge_file, int from1, int from2, int to2)
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{
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int line;
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char buf[BUF_10K];
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FILE *f0;
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FILE *f1;
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f0 = fopen (dview->file[0], "r");
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f1 = fopen (dview->file[1], "r");
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line = 0;
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while (fgets (buf, sizeof (buf), f0) && line < from1 - 1)
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{
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line++;
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fputs (buf, merge_file);
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}
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line = 0;
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while (fgets (buf, sizeof (buf), f1) && line <= to2)
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{
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line++;
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if (line >= from2)
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fputs (buf, merge_file);
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}
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while (fgets (buf, sizeof (buf), f0))
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{
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fputs (buf, merge_file);
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}
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fclose (f0);
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fclose (f1);
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}
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static void
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dview_replace_hunk (WDiff * dview, FILE * merge_file, int from1, int to1, int from2, int to2)
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{
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int line1, line2;
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char buf[BUF_10K];
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FILE *f0;
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FILE *f1;
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f0 = fopen (dview->file[0], "r");
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f1 = fopen (dview->file[1], "r");
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line1 = 0;
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while (fgets (buf, sizeof (buf), f0) && line1 < from1 - 1)
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{
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line1++;
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fputs (buf, merge_file);
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}
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line2 = 0;
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while (fgets (buf, sizeof (buf), f1) && line2 <= to2)
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{
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line2++;
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if (line2 >= from2)
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fputs (buf, merge_file);
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}
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while (fgets (buf, sizeof (buf), f0))
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{
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line1++;
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if (line1 > to1)
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fputs (buf, merge_file);
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}
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fclose (f0);
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fclose (f1);
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}
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static void
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do_merge_hunk (WDiff * dview)
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{
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int i, diff;
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int from1, to1, from2, to2;
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int res;
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int hunk;
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hunk = get_current_hunk (dview, &from1, &to1, &from2, &to2);
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if (hunk > 0)
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{
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int merge_file_fd;
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FILE *merge_file;
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char *merge_file_name = NULL;
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if (!dview->merged)
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{
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dview->merged = mc_util_make_backup_if_possible (dview->file[0], "~~~");
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if (!dview->merged)
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{
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message (D_ERROR, MSG_ERROR,
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_(" Cannot create backup file \n %s%s \n %s "),
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dview->file[0], "~~~", unix_error_string (errno));
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return;
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}
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}
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merge_file_fd = mc_mkstemps (&merge_file_name, "mcmerge", NULL);
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if (merge_file_fd == -1)
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{
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message (D_ERROR, MSG_ERROR,
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_(" Cannot create temporary merge file \n %s "),
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unix_error_string (errno));
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return;
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}
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merge_file = fdopen (merge_file_fd, "w");
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switch (hunk)
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{
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case DIFF_DEL:
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dview_remove_hunk (dview, merge_file, from1, to1);
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break;
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case DIFF_ADD:
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dview_add_hunk (dview, merge_file, from1, from2, to2);
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break;
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case DIFF_CHG:
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dview_replace_hunk (dview, merge_file, from1, to1, from2, to2);
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break;
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}
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fflush (merge_file);
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fclose (merge_file);
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res = rewrite_backup_content (merge_file_name, dview->file[0]);
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unlink (merge_file_name);
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g_free (merge_file_name);
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}
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}
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/* --------------------------------------------------------------------------------------------- */
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/* view routines and callbacks ********************************************** */
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@ -2236,7 +2472,6 @@ dview_display_file (const WDiff * dview, int ord, int r, int c, int height, int
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const DIFFLN *p;
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int nwidth = display_numbers;
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int xwidth = display_symbols + display_numbers;
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if (xwidth)
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{
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if (xwidth > width && display_symbols)
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@ -2907,7 +3142,9 @@ dview_labels (WDiff * dview)
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WButtonBar *b = find_buttonbar (h);
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buttonbar_set_label (b, 1, Q_ ("ButtonBar|Help"), diff_map, (Widget *) dview);
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buttonbar_set_label (b, 2, Q_ ("ButtonBar|Save"), diff_map, (Widget *) dview);
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buttonbar_set_label (b, 4, Q_ ("ButtonBar|Edit"), diff_map, (Widget *) dview);
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buttonbar_set_label (b, 5, Q_ ("ButtonBar|Merge"), diff_map, (Widget *) dview);
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buttonbar_set_label (b, 7, Q_ ("ButtonBar|Search"), diff_map, (Widget *) dview);
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buttonbar_set_label (b, 10, Q_ ("ButtonBar|Quit"), diff_map, (Widget *) dview);
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}
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@ -2944,13 +3181,58 @@ dview_event (Gpm_Event * event, void *x)
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return result;
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}
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static gboolean
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dview_save (WDiff * dview)
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{
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gboolean res = TRUE;
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if (!dview->merged)
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return res;
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res = mc_util_unlink_backup_if_possible (dview->file[0], "~~~");
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dview->merged = !res;
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return res;
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}
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static void
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dview_do_save (WDiff * dview)
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{
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(void) dview_save (dview);
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}
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/*
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* Check if it's OK to close the diff viewer. If there are unsaved changes,
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* ask user.
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*/
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static gboolean
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dview_ok_to_exit (WDiff * dview)
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{
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gboolean res = TRUE;
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if (!dview->merged)
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return res;
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switch (query_dialog
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(_("Quit"), _(" File was modified, Save with exit? "), D_NORMAL, 2, _("&Yes"), _("&No")))
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{
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case -1:
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res = FALSE;
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break;
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case 0:
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res = TRUE;
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(void) dview_save (dview);
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break;
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case 1:
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res = TRUE;
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if (mc_util_restore_from_backup_if_possible (dview->file[0], "~~~"))
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res = mc_util_unlink_backup_if_possible (dview->file[0], "~~~");
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break;
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}
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return res;
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}
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/* --------------------------------------------------------------------------------------------- */
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static cb_ret_t
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dview_execute_cmd (WDiff * dview, unsigned long command)
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{
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cb_ret_t res = MSG_HANDLED;
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switch (command)
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{
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case CK_DiffHelp:
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@ -3028,6 +3310,10 @@ dview_execute_cmd (WDiff * dview, unsigned long command)
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case CK_DiffEditCurrent:
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dview_edit (dview, dview->ord);
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break;
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case CK_DiffMergeCurrentHunk:
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do_merge_hunk (dview);
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dview_redo (dview);
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break;
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case CK_DiffEditOther:
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dview_edit (dview, dview->ord ^ 1);
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break;
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@ -3073,6 +3359,9 @@ dview_execute_cmd (WDiff * dview, unsigned long command)
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case CK_DiffQuit:
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dview->view_quit = 1;
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break;
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case CK_DiffSave:
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dview_do_save (dview);
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break;
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case CK_SelectCodepage:
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dview_select_encoding (dview);
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dview_reread (dview);
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@ -3175,6 +3464,12 @@ dview_dialog_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, v
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/* command from buttonbar */
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return send_message ((Widget *) dview, WIDGET_COMMAND, parm);
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case DLG_VALIDATE:
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dview = (WDiff *) find_widget_type (h, dview_callback);
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if (!dview_ok_to_exit (dview))
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h->running = 1;
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return MSG_HANDLED;
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default:
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return default_dlg_callback (h, sender, msg, parm, data);
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}
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@ -61,6 +61,8 @@ typedef struct
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const char *file[2]; /* filenames */
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const char *label[2];
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FBUF *f[2];
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const char *backup_sufix;
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gboolean merged;
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GArray *a[2];
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GPtrArray *hdiff;
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int ndiff; /* number of hunks */
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@ -98,6 +100,14 @@ typedef struct
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} opt;
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} WDiff;
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typedef enum
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{
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DIFF_NONE = 0,
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DIFF_ADD = 1,
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DIFF_DEL = 2,
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DIFF_CHG = 3
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} DiffState;
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void dview_diff_cmd (WDiff * dview);
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int diff_view (const char *file1, const char *file2, const char *label1, const char *label2);
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@ -481,6 +481,8 @@ static name_keymap_t command_names[] = {
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{ "DiffQuit", CK_DiffQuit},
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{ "DiffHelp", CK_DiffHelp},
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{ "SelectCodepage", CK_SelectCodepage},
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{ "DiffMergeCurrentHunk", CK_DiffMergeCurrentHunk},
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{ "DiffSave", CK_DiffSave},
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{ NULL, CK_Ignore_Key }
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};
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@ -986,6 +988,7 @@ const global_keymap_t default_diff_keymap[] = {
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{ KEY_F (1), CK_DiffHelp, "F1" },
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{ KEY_F (4), CK_DiffEditCurrent, "F4" },
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{ KEY_F (5), CK_DiffMergeCurrentHunk, "F5" },
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{ KEY_F (7), CK_DiffSearch, "F7" },
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{ KEY_F (10), CK_DiffQuit, "F10" },
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{ KEY_F (14), CK_DiffEditOther, "S-F4" },
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