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Copy pathcommit.c
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88 lines (77 loc) · 2.41 KB
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/*
* libgit2 "commit" example - shows how to create a git commit
*
* Written by the libgit2 contributors
*
* To the extent possible under law, the author(s) have dedicated all copyright
* and related and neighboring rights to this software to the public domain
* worldwide. This software is distributed without any warranty.
*
* You should have received a copy of the CC0 Public Domain Dedication along
* with this software. If not, see
* <http://creativecommons.org/publicdomain/zero/1.0/>.
*/
#include "common.h"
/**
* This example demonstrates the libgit2 commit APIs to roughly
* simulate `git commit` with the commit message argument.
*
* This does not have:
*
* - Robust error handling
* - Most of the `git commit` options
*
* This does have:
*
* - Example of performing a git commit with a comment
*
*/
int lg2_commit(git_repository *repo, int argc, char **argv)
{
const char *opt = argv[1];
const char *comment = argv[2];
int error;
git_oid commit_oid,tree_oid;
git_tree *tree;
git_index *index;
git_object *parent = NULL;
git_reference *ref = NULL;
git_signature *author_signature, *committer_signature;
/* Validate args */
if (argc < 3 || strcmp(opt, "-m") != 0) {
printf ("USAGE: %s -m <comment>\n", argv[0]);
return -1;
}
error = git_revparse_ext(&parent, &ref, repo, "HEAD");
if (error == GIT_ENOTFOUND) {
printf("HEAD not found. Creating first commit\n");
error = 0;
} else if (error != 0) {
const git_error *err = git_error_last();
if (err) printf("ERROR %d: %s\n", err->klass, err->message);
else printf("ERROR %d: no detailed info\n", error);
}
check_lg2(git_repository_index(&index, repo), "Could not open repository index", NULL);
check_lg2(git_index_write_tree(&tree_oid, index), "Could not write tree", NULL);;
check_lg2(git_index_write(index), "Could not write index", NULL);;
check_lg2(git_tree_lookup(&tree, repo, &tree_oid), "Error looking up tree", NULL);
check_lg2(git_signature_default_from_env(&author_signature, &committer_signature, repo),
"Error creating signature", NULL);
check_lg2(git_commit_create_v(
&commit_oid,
repo,
"HEAD",
author_signature,
committer_signature,
NULL,
comment,
tree,
parent ? 1 : 0, parent), "Error creating commit", NULL);
git_index_free(index);
git_signature_free(author_signature);
git_signature_free(committer_signature);
git_tree_free(tree);
git_object_free(parent);
git_reference_free(ref);
return error;
}