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conflict-marker-size: new attribute

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This can be specified to set the length of the conflict marker (usually 7)
to a non-default value per path.  Only the callers of ll_merge() that are
aware of the per-path attributes are modified.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2010-01-15 22:37:32 -08:00
parent 88533f6d64
commit 23a64c9e77
1 changed files with 34 additions and 25 deletions
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59
ll-merge.c
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@ -18,7 +18,8 @@ typedef int (*ll_merge_fn)(const struct ll_merge_driver *,
mmfile_t *orig, mmfile_t *orig,
mmfile_t *src1, const char *name1, mmfile_t *src1, const char *name1,
mmfile_t *src2, const char *name2, mmfile_t *src2, const char *name2,
int virtual_ancestor); int virtual_ancestor,
int marker_size);
struct ll_merge_driver { struct ll_merge_driver {
const char *name; const char *name;
@ -38,7 +39,7 @@ static int ll_binary_merge(const struct ll_merge_driver *drv_unused,
mmfile_t *orig, mmfile_t *orig,
mmfile_t *src1, const char *name1, mmfile_t *src1, const char *name1,
mmfile_t *src2, const char *name2, mmfile_t *src2, const char *name2,
int virtual_ancestor) int virtual_ancestor, int marker_size)
{ {
/* /*
* The tentative merge result is "ours" for the final round, * The tentative merge result is "ours" for the final round,
@ -59,7 +60,7 @@ static int ll_xdl_merge(const struct ll_merge_driver *drv_unused,
mmfile_t *orig, mmfile_t *orig,
mmfile_t *src1, const char *name1, mmfile_t *src1, const char *name1,
mmfile_t *src2, const char *name2, mmfile_t *src2, const char *name2,
int virtual_ancestor) int virtual_ancestor, int marker_size)
{ {
xmparam_t xmp; xmparam_t xmp;
int style = 0; int style = 0;
@ -73,12 +74,14 @@ static int ll_xdl_merge(const struct ll_merge_driver *drv_unused,
path, path,
orig, src1, name1, orig, src1, name1,
src2, name2, src2, name2,
virtual_ancestor); virtual_ancestor, marker_size);
} }
memset(&xmp, 0, sizeof(xmp)); memset(&xmp, 0, sizeof(xmp));
if (git_xmerge_style >= 0) if (git_xmerge_style >= 0)
style = git_xmerge_style; style = git_xmerge_style;
if (marker_size > 0)
xmp.marker_size = marker_size;
return xdl_merge(orig, return xdl_merge(orig,
src1, name1, src1, name1,
src2, name2, src2, name2,
@ -92,11 +95,10 @@ static int ll_union_merge(const struct ll_merge_driver *drv_unused,
mmfile_t *orig, mmfile_t *orig,
mmfile_t *src1, const char *name1, mmfile_t *src1, const char *name1,
mmfile_t *src2, const char *name2, mmfile_t *src2, const char *name2,
int virtual_ancestor) int virtual_ancestor, int marker_size)
{ {
char *src, *dst; char *src, *dst;
long size; long size;
const int marker_size = 7;
int status, saved_style; int status, saved_style;
/* We have to force the RCS "merge" style */ /* We have to force the RCS "merge" style */
@ -104,7 +106,7 @@ static int ll_union_merge(const struct ll_merge_driver *drv_unused,
git_xmerge_style = 0; git_xmerge_style = 0;
status = ll_xdl_merge(drv_unused, result, path_unused, status = ll_xdl_merge(drv_unused, result, path_unused,
orig, src1, NULL, src2, NULL, orig, src1, NULL, src2, NULL,
virtual_ancestor); virtual_ancestor, marker_size);
git_xmerge_style = saved_style; git_xmerge_style = saved_style;
if (status <= 0) if (status <= 0)
return status; return status;
@ -165,14 +167,15 @@ static int ll_ext_merge(const struct ll_merge_driver *fn,
mmfile_t *orig, mmfile_t *orig,
mmfile_t *src1, const char *name1, mmfile_t *src1, const char *name1,
mmfile_t *src2, const char *name2, mmfile_t *src2, const char *name2,
int virtual_ancestor) int virtual_ancestor, int marker_size)
{ {
char temp[3][50]; char temp[4][50];
struct strbuf cmd = STRBUF_INIT; struct strbuf cmd = STRBUF_INIT;
struct strbuf_expand_dict_entry dict[] = { struct strbuf_expand_dict_entry dict[] = {
{ "O", temp[0] }, { "O", temp[0] },
{ "A", temp[1] }, { "A", temp[1] },
{ "B", temp[2] }, { "B", temp[2] },
{ "L", temp[3] },
{ NULL } { NULL }
}; };
const char *args[] = { "sh", "-c", NULL, NULL }; const char *args[] = { "sh", "-c", NULL, NULL };
@ -187,6 +190,7 @@ static int ll_ext_merge(const struct ll_merge_driver *fn,
create_temp(orig, temp[0]); create_temp(orig, temp[0]);
create_temp(src1, temp[1]); create_temp(src1, temp[1]);
create_temp(src2, temp[2]); create_temp(src2, temp[2]);
sprintf(temp[3], "%d", marker_size);
strbuf_expand(&cmd, fn->cmdline, strbuf_expand_dict_cb, &dict); strbuf_expand(&cmd, fn->cmdline, strbuf_expand_dict_cb, &dict);
@ -279,6 +283,7 @@ static int read_merge_config(const char *var, const char *value, void *cb)
* %O - temporary file name for the merge base. * %O - temporary file name for the merge base.
* %A - temporary file name for our version. * %A - temporary file name for our version.
* %B - temporary file name for the other branches' version. * %B - temporary file name for the other branches' version.
* %L - conflict marker length
* *
* The external merge driver should write the results in the * The external merge driver should write the results in the
* file named by %A, and signal that it has done with zero exit * file named by %A, and signal that it has done with zero exit
@ -339,16 +344,13 @@ static const struct ll_merge_driver *find_ll_merge_driver(const char *merge_attr
return &ll_merge_drv[LL_TEXT_MERGE]; return &ll_merge_drv[LL_TEXT_MERGE];
} }
static const char *git_path_check_merge(const char *path) static int git_path_check_merge(const char *path, struct git_attr_check check[2])
{ {
static struct git_attr_check attr_merge_check; if (!check[0].attr) {
check[0].attr = git_attr("merge");
if (!attr_merge_check.attr) check[1].attr = git_attr("conflict-marker-size");
attr_merge_check.attr = git_attr("merge"); }
return git_checkattr(path, 2, check);
if (git_checkattr(path, 1, &attr_merge_check))
return NULL;
return attr_merge_check.value;
} }
int ll_merge(mmbuffer_t *result_buf, int ll_merge(mmbuffer_t *result_buf,
@ -358,16 +360,23 @@ int ll_merge(mmbuffer_t *result_buf,
mmfile_t *theirs, const char *their_label, mmfile_t *theirs, const char *their_label,
int virtual_ancestor) int virtual_ancestor)
{ {
const char *ll_driver_name; static struct git_attr_check check[2];
const char *ll_driver_name = NULL;
int marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
const struct ll_merge_driver *driver; const struct ll_merge_driver *driver;
ll_driver_name = git_path_check_merge(path); if (!git_path_check_merge(path, check)) {
ll_driver_name = check[0].value;
if (check[1].value) {
marker_size = atoi(check[1].value);
if (marker_size <= 0)
marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
}
}
driver = find_ll_merge_driver(ll_driver_name); driver = find_ll_merge_driver(ll_driver_name);
if (virtual_ancestor && driver->recursive) if (virtual_ancestor && driver->recursive)
driver = find_ll_merge_driver(driver->recursive); driver = find_ll_merge_driver(driver->recursive);
return driver->fn(driver, result_buf, path, return driver->fn(driver, result_buf, path, ancestor,
ancestor, ours, our_label, theirs, their_label,
ours, our_label, virtual_ancestor, marker_size);
theirs, their_label, virtual_ancestor);
} }