Page MenuHomeFreeBSD
Differential D36860 Diff 111610 contrib/libdiff/test/test020.right.txt

Changeset View

Standalone View

View Options

contrib/libdiff/test/test020.right.txt

  • This file was added.
/*
* Copyright (c) 2017 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/queue.h>
#include <sys/stat.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <sha1.h>
#include <zlib.h>
#include "got_object.h"
#include "got_repository.h"
#include "got_error.h"
#include "got_diff.h"
#include "got_opentemp.h"
#include "got_path.h"
#include "got_cancel.h"
#include "got_worktree.h"
#include "got_lib_diff.h"
#include "got_lib_delta.h"
#include "got_lib_inflate.h"
#include "got_lib_object.h"
static const struct got_error *
add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
{
off_t *p;
p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
if (p == NULL)
return got_error_from_errno("reallocarray");
*line_offsets = p;
(*line_offsets)[*nlines] = off;
(*nlines)++;
return NULL;
}
static const struct got_error *
diff_blobs(off_t **line_offsets, size_t *nlines,
struct got_diffreg_result **resultp, struct got_blob_object *blob1,
struct got_blob_object *blob2,
const char *label1, const char *label2, mode_t mode1, mode_t mode2,
int diff_context, int ignore_whitespace, FILE *outfile)
{
const struct got_error *err = NULL, *free_err;
FILE *f1 = NULL, *f2 = NULL;
char hex1[SHA1_DIGEST_STRING_LENGTH];
char hex2[SHA1_DIGEST_STRING_LENGTH];
char *idstr1 = NULL, *idstr2 = NULL;
size_t size1, size2;
struct got_diffreg_result *result;
off_t outoff = 0;
int n;
if (line_offsets && *line_offsets && *nlines > 0)
outoff = (*line_offsets)[*nlines - 1];
if (resultp)
*resultp = NULL;
if (blob1) {
f1 = got_opentemp();
if (f1 == NULL)
return got_error_from_errno("got_opentemp");
}
if (blob2) {
f2 = got_opentemp();
if (f2 == NULL) {
err = got_error_from_errno("got_opentemp");
fclose(f1);
return err;
}
}
size1 = 0;
if (blob1) {
idstr1 = got_object_blob_id_str(blob1, hex1, sizeof(hex1));
err = got_object_blob_dump_to_file(&size1, NULL, NULL, f1,
blob1);
if (err)
goto done;
} else
idstr1 = "/dev/null";
size2 = 0;
if (blob2) {
idstr2 = got_object_blob_id_str(blob2, hex2, sizeof(hex2));
err = got_object_blob_dump_to_file(&size2, NULL, NULL, f2,
blob2);
if (err)
goto done;
} else
idstr2 = "/dev/null";
if (outfile) {
char *modestr1 = NULL, *modestr2 = NULL;
int modebits;
if (mode1 && mode1 != mode2) {
if (S_ISLNK(mode1))
modebits = S_IFLNK;
else
modebits = (S_IRWXU | S_IRWXG | S_IRWXO);
if (asprintf(&modestr1, " (mode %o)",
mode1 & modebits) == -1) {
err = got_error_from_errno("asprintf");
goto done;
}
}
if (mode2 && mode1 != mode2) {
if (S_ISLNK(mode2))
modebits = S_IFLNK;
else
modebits = (S_IRWXU | S_IRWXG | S_IRWXO);
if (asprintf(&modestr2, " (mode %o)",
mode2 & modebits) == -1) {
err = got_error_from_errno("asprintf");
goto done;
}
}
n = fprintf(outfile, "blob - %s%s\n", idstr1,
modestr1 ? modestr1 : "");
if (n < 0) {
err = got_error_from_errno("fprintf");
goto done;
}
outoff += n;
if (line_offsets) {
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
goto done;
}
n = fprintf(outfile, "blob + %s%s\n", idstr2,
modestr2 ? modestr2 : "");
if (n < 0) {
err = got_error_from_errno("fprintf");
goto done;
}
outoff += n;
if (line_offsets) {
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
goto done;
}
free(modestr1);
free(modestr2);
}
err = got_diffreg(&result, f1, f2, GOT_DIFF_ALGORITHM_MYERS,
ignore_whitespace);
if (err)
goto done;
if (outfile) {
err = got_diffreg_output(line_offsets, nlines, result, f1, f2,
label1 ? label1 : idstr1,
label2 ? label2 : idstr2,
GOT_DIFF_OUTPUT_UNIDIFF, diff_context, outfile);
if (err)
goto done;
}
if (resultp && err == NULL)
*resultp = result;
else {
free_err = got_diffreg_result_free(result);
if (free_err && err == NULL)
err = free_err;
}
done:
if (f1 && fclose(f1) != 0 && err == NULL)
err = got_error_from_errno("fclose");
if (f2 && fclose(f2) != 0 && err == NULL)
err = got_error_from_errno("fclose");
return err;
}
const struct got_error *
got_diff_blob_output_unidiff(void *arg, struct got_blob_object *blob1,
struct got_blob_object *blob2, struct got_object_id *id1,
struct got_object_id *id2, const char *label1, const char *label2,
mode_t mode1, mode_t mode2, struct got_repository *repo)
{
struct got_diff_blob_output_unidiff_arg *a = arg;
return diff_blobs(&a->line_offsets, &a->nlines, NULL,
blob1, blob2, label1, label2, mode1, mode2, a->diff_context,
a->ignore_whitespace, a->outfile);
}
const struct got_error *
got_diff_blob(off_t **line_offsets, size_t *nlines,
struct got_blob_object *blob1, struct got_blob_object *blob2,
const char *label1, const char *label2, int diff_context,
int ignore_whitespace, FILE *outfile)
{
return diff_blobs(line_offsets, nlines, NULL, blob1, blob2,
label1, label2, 0, 0, diff_context, ignore_whitespace, outfile);
}
static const struct got_error *
diff_blob_file(struct got_diffreg_result **resultp,
struct got_blob_object *blob1, const char *label1, FILE *f2, size_t size2,
const char *label2, int diff_context, int ignore_whitespace, FILE *outfile)
{
const struct got_error *err = NULL, *free_err;
FILE *f1 = NULL;
char hex1[SHA1_DIGEST_STRING_LENGTH];
char *idstr1 = NULL;
size_t size1;
struct got_diffreg_result *result = NULL;
if (resultp)
*resultp = NULL;
size1 = 0;
if (blob1) {
f1 = got_opentemp();
if (f1 == NULL)
return got_error_from_errno("got_opentemp");
idstr1 = got_object_blob_id_str(blob1, hex1, sizeof(hex1));
err = got_object_blob_dump_to_file(&size1, NULL, NULL, f1,
blob1);
if (err)
goto done;
} else {
idstr1 = "/dev/null";
}
if (outfile) {
fprintf(outfile, "blob - %s\n", label1 ? label1 : idstr1);
fprintf(outfile, "file + %s\n",
f2 == NULL ? "/dev/null" : label2);
}
err = got_diffreg(&result, f1, f2, GOT_DIFF_ALGORITHM_MYERS,
ignore_whitespace);
if (err)
goto done;
if (outfile) {
err = got_diffreg_output(NULL, NULL, result, f1, f2,
label2, label2, GOT_DIFF_OUTPUT_UNIDIFF, diff_context,
outfile);
if (err)
goto done;
}
if (resultp && err == NULL)
*resultp = result;
else if (result) {
free_err = got_diffreg_result_free(result);
if (free_err && err == NULL)
err = free_err;
}
done:
if (f1 && fclose(f1) != 0 && err == NULL)
err = got_error_from_errno("fclose");
return err;
}
const struct got_error *
got_diff_blob_file(struct got_blob_object *blob1, const char *label1,
FILE *f2, size_t size2, const char *label2, int diff_context,
int ignore_whitespace, FILE *outfile)
{
return diff_blob_file(NULL, blob1, label1, f2, size2, label2,
diff_context, ignore_whitespace, outfile);
}
const struct got_error *
got_diff_blob_prepared_file(struct got_diffreg_result **resultp,
struct diff_data *data1, struct got_blob_object *blob1,
struct diff_data *data2, FILE *f2, char *p2, size_t size2,
const struct diff_config *cfg, int ignore_whitespace)
{
const struct got_error *err = NULL, *free_err;
FILE *f1 = NULL;
char hex1[SHA1_DIGEST_STRING_LENGTH];
char *idstr1 = NULL, *p1 = NULL;
size_t size1, size;
struct got_diffreg_result *result = NULL;
int f1_created = 0;
*resultp = NULL;
size1 = 0;
if (blob1) {
f1 = got_opentemp();
if (f1 == NULL)
return got_error_from_errno("got_opentemp");
idstr1 = got_object_blob_id_str(blob1, hex1, sizeof(hex1));
err = got_object_blob_dump_to_file(&size1, NULL, NULL, f1,
blob1);
if (err)
goto done;
} else {
idstr1 = "/dev/null";
}
err = got_diff_prepare_file(&f1, &p1, &f1_created, &size,
data1, cfg, ignore_whitespace);
if (err)
goto done;
err = got_diffreg_prepared_files(&result, cfg, data1, f1,
p1, size1, data2, f2, p2, size2);
if (err)
goto done;
*resultp = result;
done:
if (err) {
if (result)
free_err = got_diffreg_result_free_left(result);
else
free_err = got_diffreg_close(f1, p1, size1, NULL,
NULL, 0);
if (free_err && err == NULL)
err = free_err;
}
return err;
}
static const struct got_error *
diff_added_blob(struct got_object_id *id, const char *label, mode_t mode,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg)
{
const struct got_error *err;
struct got_blob_object *blob = NULL;
struct got_object *obj = NULL;
err = got_object_open(&obj, repo, id);
if (err)
return err;
err = got_object_blob_open(&blob, repo, obj, 8192);
if (err)
goto done;
err = cb(cb_arg, NULL, blob, NULL, id, NULL, label, 0, mode, repo);
done:
got_object_close(obj);
if (blob)
got_object_blob_close(blob);
return err;
}
static const struct got_error *
diff_modified_blob(struct got_object_id *id1, struct got_object_id *id2,
const char *label1, const char *label2, mode_t mode1, mode_t mode2,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg)
{
const struct got_error *err;
struct got_object *obj1 = NULL;
struct got_object *obj2 = NULL;
struct got_blob_object *blob1 = NULL;
struct got_blob_object *blob2 = NULL;
err = got_object_open(&obj1, repo, id1);
if (err)
return err;
if (obj1->type != GOT_OBJ_TYPE_BLOB) {
err = got_error(GOT_ERR_OBJ_TYPE);
goto done;
}
err = got_object_open(&obj2, repo, id2);
if (err)
goto done;
if (obj2->type != GOT_OBJ_TYPE_BLOB) {
err = got_error(GOT_ERR_BAD_OBJ_DATA);
goto done;
}
err = got_object_blob_open(&blob1, repo, obj1, 8192);
if (err)
goto done;
err = got_object_blob_open(&blob2, repo, obj2, 8192);
if (err)
goto done;
err = cb(cb_arg, blob1, blob2, id1, id2, label1, label2, mode1, mode2,
repo);
done:
if (obj1)
got_object_close(obj1);
if (obj2)
got_object_close(obj2);
if (blob1)
got_object_blob_close(blob1);
if (blob2)
got_object_blob_close(blob2);
return err;
}
static const struct got_error *
diff_deleted_blob(struct got_object_id *id, const char *label, mode_t mode,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg)
{
const struct got_error *err;
struct got_blob_object *blob = NULL;
struct got_object *obj = NULL;
err = got_object_open(&obj, repo, id);
if (err)
return err;
err = got_object_blob_open(&blob, repo, obj, 8192);
if (err)
goto done;
err = cb(cb_arg, blob, NULL, id, NULL, label, NULL, mode, 0, repo);
done:
got_object_close(obj);
if (blob)
got_object_blob_close(blob);
return err;
}
static const struct got_error *
diff_added_tree(struct got_object_id *id, const char *label,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg,
int diff_content)
{
const struct got_error *err = NULL;
struct got_object *treeobj = NULL;
struct got_tree_object *tree = NULL;
err = got_object_open(&treeobj, repo, id);
if (err)
goto done;
if (treeobj->type != GOT_OBJ_TYPE_TREE) {
err = got_error(GOT_ERR_OBJ_TYPE);
goto done;
}
err = got_object_tree_open(&tree, repo, treeobj);
if (err)
goto done;
err = got_diff_tree(NULL, tree, NULL, label, repo, cb, cb_arg,
diff_content);
done:
if (tree)
got_object_tree_close(tree);
if (treeobj)
got_object_close(treeobj);
return err;
}
static const struct got_error *
diff_modified_tree(struct got_object_id *id1, struct got_object_id *id2,
const char *label1, const char *label2, struct got_repository *repo,
got_diff_blob_cb cb, void *cb_arg, int diff_content)
{
const struct got_error *err;
struct got_object *treeobj1 = NULL;
struct got_object *treeobj2 = NULL;
struct got_tree_object *tree1 = NULL;
struct got_tree_object *tree2 = NULL;
err = got_object_open(&treeobj1, repo, id1);
if (err)
goto done;
if (treeobj1->type != GOT_OBJ_TYPE_TREE) {
err = got_error(GOT_ERR_OBJ_TYPE);
goto done;
}
err = got_object_open(&treeobj2, repo, id2);
if (err)
goto done;
if (treeobj2->type != GOT_OBJ_TYPE_TREE) {
err = got_error(GOT_ERR_OBJ_TYPE);
goto done;
}
err = got_object_tree_open(&tree1, repo, treeobj1);
if (err)
goto done;
err = got_object_tree_open(&tree2, repo, treeobj2);
if (err)
goto done;
err = got_diff_tree(tree1, tree2, label1, label2, repo, cb, cb_arg,
diff_content);
done:
if (tree1)
got_object_tree_close(tree1);
if (tree2)
got_object_tree_close(tree2);
if (treeobj1)
got_object_close(treeobj1);
if (treeobj2)
got_object_close(treeobj2);
return err;
}
static const struct got_error *
diff_deleted_tree(struct got_object_id *id, const char *label,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg,
int diff_content)
{
const struct got_error *err;
struct got_object *treeobj = NULL;
struct got_tree_object *tree = NULL;
err = got_object_open(&treeobj, repo, id);
if (err)
goto done;
if (treeobj->type != GOT_OBJ_TYPE_TREE) {
err = got_error(GOT_ERR_OBJ_TYPE);
goto done;
}
err = got_object_tree_open(&tree, repo, treeobj);
if (err)
goto done;
err = got_diff_tree(tree, NULL, label, NULL, repo, cb, cb_arg,
diff_content);
done:
if (tree)
got_object_tree_close(tree);
if (treeobj)
got_object_close(treeobj);
return err;
}
static const struct got_error *
diff_kind_mismatch(struct got_object_id *id1, struct got_object_id *id2,
const char *label1, const char *label2, struct got_repository *repo,
got_diff_blob_cb cb, void *cb_arg)
{
/* XXX TODO */
return NULL;
}
static const struct got_error *
diff_entry_old_new(struct got_tree_entry *te1,
struct got_tree_entry *te2, const char *label1, const char *label2,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg,
int diff_content)
{
const struct got_error *err = NULL;
int id_match;
if (got_object_tree_entry_is_submodule(te1))
return NULL;
if (te2 == NULL) {
if (S_ISDIR(te1->mode))
err = diff_deleted_tree(&te1->id, label1, repo,
cb, cb_arg, diff_content);
else {
if (diff_content)
err = diff_deleted_blob(&te1->id, label1,
te1->mode, repo, cb, cb_arg);
else
err = cb(cb_arg, NULL, NULL, &te1->id, NULL,
label1, NULL, te1->mode, 0, repo);
}
return err;
} else if (got_object_tree_entry_is_submodule(te2))
return NULL;
id_match = (got_object_id_cmp(&te1->id, &te2->id) == 0);
if (S_ISDIR(te1->mode) && S_ISDIR(te2->mode)) {
if (!id_match)
return diff_modified_tree(&te1->id, &te2->id,
label1, label2, repo, cb, cb_arg, diff_content);
} else if ((S_ISREG(te1->mode) || S_ISLNK(te1->mode)) &&
(S_ISREG(te2->mode) || S_ISLNK(te2->mode))) {
if (!id_match ||
((te1->mode & (S_IFLNK | S_IXUSR))) !=
(te2->mode & (S_IFLNK | S_IXUSR))) {
if (diff_content)
return diff_modified_blob(&te1->id, &te2->id,
label1, label2, te1->mode, te2->mode,
repo, cb, cb_arg);
else
return cb(cb_arg, NULL, NULL, &te1->id,
&te2->id, label1, label2, te1->mode,
te2->mode, repo);
}
}
if (id_match)
return NULL;
return diff_kind_mismatch(&te1->id, &te2->id, label1, label2, repo,
cb, cb_arg);
}
static const struct got_error *
diff_entry_new_old(struct got_tree_entry *te2,
struct got_tree_entry *te1, const char *label2,
struct got_repository *repo, got_diff_blob_cb cb, void *cb_arg,
int diff_content)
{
if (te1 != NULL) /* handled by diff_entry_old_new() */
return NULL;
if (got_object_tree_entry_is_submodule(te2))
return NULL;
if (S_ISDIR(te2->mode))
return diff_added_tree(&te2->id, label2, repo, cb, cb_arg,
diff_content);
if (diff_content)
return diff_added_blob(&te2->id, label2, te2->mode, repo, cb,
cb_arg);
return cb(cb_arg, NULL, NULL, NULL, &te2->id, NULL, label2, 0,
te2->mode, repo);
}
const struct got_error *
got_diff_tree_collect_changed_paths(void *arg, struct got_blob_object *blob1,
struct got_blob_object *blob2, struct got_object_id *id1,
struct got_object_id *id2, const char *label1, const char *label2,
mode_t mode1, mode_t mode2, struct got_repository *repo)
{
const struct got_error *err = NULL;
struct got_pathlist_head *paths = arg;
struct got_diff_changed_path *change = NULL;
char *path = NULL;
path = strdup(label2 ? label2 : label1);
if (path == NULL)
return got_error_from_errno("malloc");
change = malloc(sizeof(*change));
if (change == NULL) {
err = got_error_from_errno("malloc");
goto done;
}
change->status = GOT_STATUS_NO_CHANGE;
if (id1 == NULL)
change->status = GOT_STATUS_ADD;
else if (id2 == NULL)
change->status = GOT_STATUS_DELETE;
else {
if (got_object_id_cmp(id1, id2) != 0)
change->status = GOT_STATUS_MODIFY;
else if (mode1 != mode2)
change->status = GOT_STATUS_MODE_CHANGE;
}
err = got_pathlist_insert(NULL, paths, path, change);
done:
if (err) {
free(path);
free(change);
}
return err;
}
const struct got_error *
got_diff_tree(struct got_tree_object *tree1, struct got_tree_object *tree2,
const char *label1, const char *label2, struct got_repository *repo,
got_diff_blob_cb cb, void *cb_arg, int diff_content)
{
const struct got_error *err = NULL;
struct got_tree_entry *te1 = NULL;
struct got_tree_entry *te2 = NULL;
char *l1 = NULL, *l2 = NULL;
int tidx1 = 0, tidx2 = 0;
if (tree1) {
te1 = got_object_tree_get_entry(tree1, 0);
if (te1 && asprintf(&l1, "%s%s%s", label1, label1[0] ? "/" : "",
te1->name) == -1)
return got_error_from_errno("asprintf");
}
if (tree2) {
te2 = got_object_tree_get_entry(tree2, 0);
if (te2 && asprintf(&l2, "%s%s%s", label2, label2[0] ? "/" : "",
te2->name) == -1)
return got_error_from_errno("asprintf");
}
do {
if (te1) {
struct got_tree_entry *te = NULL;
if (tree2)
te = got_object_tree_find_entry(tree2,
te1->name);
if (te) {
free(l2);
l2 = NULL;
if (te && asprintf(&l2, "%s%s%s", label2,
label2[0] ? "/" : "", te->name) == -1)
return
got_error_from_errno("asprintf");
}
err = diff_entry_old_new(te1, te, l1, l2, repo, cb,
cb_arg, diff_content);
if (err)
break;
}
if (te2) {
struct got_tree_entry *te = NULL;
if (tree1)
te = got_object_tree_find_entry(tree1,
te2->name);
free(l2);
if (te) {
if (asprintf(&l2, "%s%s%s", label2,
label2[0] ? "/" : "", te->name) == -1)
return
got_error_from_errno("asprintf");
} else {
if (asprintf(&l2, "%s%s%s", label2,
label2[0] ? "/" : "", te2->name) == -1)
return
got_error_from_errno("asprintf");
}
err = diff_entry_new_old(te2, te, l2, repo,
cb, cb_arg, diff_content);
if (err)
break;
}
free(l1);
l1 = NULL;
if (te1) {
tidx1++;
te1 = got_object_tree_get_entry(tree1, tidx1);
if (te1 &&
asprintf(&l1, "%s%s%s", label1,
label1[0] ? "/" : "", te1->name) == -1)
return got_error_from_errno("asprintf");
}
free(l2);
l2 = NULL;
if (te2) {
tidx2++;
te2 = got_object_tree_get_entry(tree2, tidx2);
if (te2 &&
asprintf(&l2, "%s%s%s", label2,
label2[0] ? "/" : "", te2->name) == -1)
return got_error_from_errno("asprintf");
}
} while (te1 || te2);
return err;
}
const struct got_error *
got_diff_objects_as_blobs(off_t **line_offsets, size_t *nlines,
struct got_object_id *id1, struct got_object_id *id2,
const char *label1, const char *label2, int diff_context,
int ignore_whitespace, struct got_repository *repo, FILE *outfile)
{
const struct got_error *err;
struct got_blob_object *blob1 = NULL, *blob2 = NULL;
if (id1 == NULL && id2 == NULL)
return got_error(GOT_ERR_NO_OBJ);
if (id1) {
err = got_object_open_as_blob(&blob1, repo, id1, 8192);
if (err)
goto done;
}
if (id2) {
err = got_object_open_as_blob(&blob2, repo, id2, 8192);
if (err)
goto done;
}
err = got_diff_blob(line_offsets, nlines, blob1, blob2,
label1, label2, diff_context, ignore_whitespace, outfile);
done:
if (blob1)
got_object_blob_close(blob1);
if (blob2)
got_object_blob_close(blob2);
return err;
}
const struct got_error *
got_diff_objects_as_trees(off_t **line_offsets, size_t *nlines,
struct got_object_id *id1, struct got_object_id *id2,
char *label1, char *label2, int diff_context, int ignore_whitespace,
struct got_repository *repo, FILE *outfile)
{
const struct got_error *err;
struct got_tree_object *tree1 = NULL, *tree2 = NULL;
struct got_diff_blob_output_unidiff_arg arg;
int want_lineoffsets = (line_offsets != NULL && *line_offsets != NULL);
if (id1 == NULL && id2 == NULL)
return got_error(GOT_ERR_NO_OBJ);
if (id1) {
err = got_object_open_as_tree(&tree1, repo, id1);
if (err)
goto done;
}
if (id2) {
err = got_object_open_as_tree(&tree2, repo, id2);
if (err)
goto done;
}
arg.diff_context = diff_context;
arg.ignore_whitespace = ignore_whitespace;
arg.outfile = outfile;
if (want_lineoffsets) {
arg.line_offsets = *line_offsets;
arg.nlines = *nlines;
} else {
arg.line_offsets = NULL;
arg.nlines = 0;
}
err = got_diff_tree(tree1, tree2, label1, label2, repo,
got_diff_blob_output_unidiff, &arg, 1);
if (want_lineoffsets) {
*line_offsets = arg.line_offsets; /* was likely re-allocated */
*nlines = arg.nlines;
}
done:
if (tree1)
got_object_tree_close(tree1);
if (tree2)
got_object_tree_close(tree2);
return err;
}
const struct got_error *
got_diff_objects_as_commits(off_t **line_offsets, size_t *nlines,
struct got_object_id *id1, struct got_object_id *id2,
int diff_context, int ignore_whitespace,
struct got_repository *repo, FILE *outfile)
{
const struct got_error *err;
struct got_commit_object *commit1 = NULL, *commit2 = NULL;
if (id2 == NULL)
return got_error(GOT_ERR_NO_OBJ);
if (id1) {
err = got_object_open_as_commit(&commit1, repo, id1);
if (err)
goto done;
}
err = got_object_open_as_commit(&commit2, repo, id2);
if (err)
goto done;
err = got_diff_objects_as_trees(line_offsets, nlines,
commit1 ? got_object_commit_get_tree_id(commit1) : NULL,
got_object_commit_get_tree_id(commit2), "", "", diff_context,
ignore_whitespace, repo, outfile);
done:
if (commit1)
got_object_commit_close(commit1);
if (commit2)
got_object_commit_close(commit2);
return err;
}
const struct got_error *
got_diff_files(struct got_diffreg_result **resultp,
FILE *f1, const char *label1, FILE *f2, const char *label2,
int diff_context, int ignore_whitespace, FILE *outfile)
{
const struct got_error *err = NULL;
struct got_diffreg_result *diffreg_result = NULL;
if (resultp)
*resultp = NULL;
if (outfile) {
fprintf(outfile, "file - %s\n",
f1 == NULL ? "/dev/null" : label1);
fprintf(outfile, "file + %s\n",
f2 == NULL ? "/dev/null" : label2);
}
err = got_diffreg(&diffreg_result, f1, f2, GOT_DIFF_ALGORITHM_MYERS,
ignore_whitespace);
if (err)
goto done;
if (outfile) {
err = got_diffreg_output(NULL, NULL, diffreg_result,
f1, f2, label1, label2, GOT_DIFF_OUTPUT_UNIDIFF,
diff_context, outfile);
if (err)
goto done;
}
done:
if (resultp && err == NULL)
*resultp = diffreg_result;
else if (diffreg_result) {
const struct got_error *free_err;
free_err = got_diffreg_result_free(diffreg_result);
if (free_err && err == NULL)
err = free_err;
}
return err;
}