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f62abd00db
When creating an action signature (e.g. for a commit author and committer) read the following environment variables that can override the configuration options: * `GIT_AUTHOR_NAME` is the human-readable name in the "author" field. * `GIT_AUTHOR_EMAIL` is the email for the "author" field. * `GIT_AUTHOR_DATE` is the timestamp used for the "author" field. * `GIT_COMMITTER_NAME` sets the human name for the "committer" field. * `GIT_COMMITTER_EMAIL` is the email address for the "committer" field. * `GIT_COMMITTER_DATE` is used for the timestamp in the "committer" field. * `EMAIL` is the fallback email address in case the user.email configuration value isn't set. If this isn't set, Git falls back to the system user and host names. This is taken from the git documentation chapter "10.8 Environment Variables": https://git-scm.com/book/en/v2/Git-Internals-Environment-Variables This PR adds support for reading these environment variables by adding two new functions `git_signature_default_author` and `git_signature_default_committer` and deprecates the `git_signature_default` function. Fixes: https://github.com/libgit2/libgit2/issues/3751 Prior work: * https://github.com/libgit2/libgit2/pull/4409 * https://github.com/libgit2/libgit2/pull/5479 * https://github.com/libgit2/libgit2/pull/6290
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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* libgit2 "commit" example - shows how to create a git commit
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*
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* Written by the libgit2 contributors
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*
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* To the extent possible under law, the author(s) have dedicated all copyright
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* and related and neighboring rights to this software to the public domain
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* worldwide. This software is distributed without any warranty.
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*
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* You should have received a copy of the CC0 Public Domain Dedication along
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* with this software. If not, see
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* <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#include "common.h"
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/**
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* This example demonstrates the libgit2 commit APIs to roughly
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* simulate `git commit` with the commit message argument.
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*
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* This does not have:
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*
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* - Robust error handling
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* - Most of the `git commit` options
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*
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* This does have:
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*
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* - Example of performing a git commit with a comment
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*
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*/
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int lg2_commit(git_repository *repo, int argc, char **argv)
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{
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const char *opt = argv[1];
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const char *comment = argv[2];
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int error;
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git_oid commit_oid,tree_oid;
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git_tree *tree;
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git_index *index;
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git_object *parent = NULL;
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git_reference *ref = NULL;
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git_signature *author_signature, *committer_signature;
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/* Validate args */
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if (argc < 3 || strcmp(opt, "-m") != 0) {
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printf ("USAGE: %s -m <comment>\n", argv[0]);
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return -1;
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}
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error = git_revparse_ext(&parent, &ref, repo, "HEAD");
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if (error == GIT_ENOTFOUND) {
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printf("HEAD not found. Creating first commit\n");
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error = 0;
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} else if (error != 0) {
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const git_error *err = git_error_last();
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if (err) printf("ERROR %d: %s\n", err->klass, err->message);
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else printf("ERROR %d: no detailed info\n", error);
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}
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check_lg2(git_repository_index(&index, repo), "Could not open repository index", NULL);
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check_lg2(git_index_write_tree(&tree_oid, index), "Could not write tree", NULL);;
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check_lg2(git_index_write(index), "Could not write index", NULL);;
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check_lg2(git_tree_lookup(&tree, repo, &tree_oid), "Error looking up tree", NULL);
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check_lg2(git_signature_default_author(&author_signature, repo),
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"Error creating author signature", NULL);
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check_lg2(git_signature_default_committer(&committer_signature, repo),
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"Error creating committer signature", NULL);
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check_lg2(git_commit_create_v(
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&commit_oid,
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repo,
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"HEAD",
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author_signature,
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committer_signature,
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NULL,
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comment,
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tree,
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parent ? 1 : 0, parent), "Error creating commit", NULL);
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git_index_free(index);
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git_signature_free(author_signature);
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git_signature_free(committer_signature);
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git_tree_free(tree);
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git_object_free(parent);
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git_reference_free(ref);
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return error;
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}
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