feat: add debug logs for git commands

lib/git.js

@@ -9,7 +9,11 @@ const debug = require('debug')('semantic-release:get-version-head');
  * @return {string} The commit sha of the tag in parameter or `null`.
  */
 async function gitTagHead(tagName) {
-  return execa.stdout('git', ['rev-list', '-1', tagName], {reject: false});
+  try {
+    return await execa.stdout('git', ['rev-list', '-1', tagName]);
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**
@@ -28,10 +32,14 @@ async function gitTags() {
  *
  * @param {string} ref The reference to look for.
  *
- * @return {boolean} `true` if the reference is in the history of the current branch, `false` otherwise.
+ * @return {boolean} `true` if the reference is in the history of the current branch, falsy otherwise.
  */
 async function isRefInHistory(ref) {
-  return (await execa('git', ['merge-base', '--is-ancestor', ref, 'HEAD'], {reject: false})).code === 0;
+  try {
+    return (await execa('git', ['merge-base', '--is-ancestor', ref, 'HEAD'])).code === 0;
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**
@@ -52,14 +60,22 @@ async function gitHead() {
  * @return {string} The value of the remote git URL.
  */
 async function repoUrl() {
-  return execa.stdout('git', ['remote', 'get-url', 'origin'], {reject: false});
+  try {
+    return await execa.stdout('git', ['remote', 'get-url', 'origin']);
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**
- * @return {Boolean} `true` if the current working directory is in a git repository, `false` otherwise.
+ * @return {Boolean} `true` if the current working directory is in a git repository, falsy otherwise.
  */
 async function isGitRepo() {
-  return (await execa('git', ['rev-parse', '--git-dir'], {reject: false})).code === 0;
+  try {
+    return (await execa('git', ['rev-parse', '--git-dir'])).code === 0;
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**
@@ -68,10 +84,14 @@ async function isGitRepo() {
  * @param {String} origin The remote repository URL.
  * @param {String} branch The repositoru branch for which to verify write access.
  *
- * @return {Boolean} `true` is authorized to push, `false` otherwise.
+ * @return {Boolean} `true` is authorized to push, falsy otherwise.
  */
 async function verifyAuth(origin, branch) {
-  return (await execa('git', ['push', '--dry-run', origin, `HEAD:${branch}`], {reject: false})).code === 0;
+  try {
+    return (await execa('git', ['push', '--dry-run', origin, `HEAD:${branch}`])).code === 0;
+  } catch (err) {
+    debug(err);
+  }
 }
 
 /**
@@ -117,10 +137,14 @@ async function deleteTag(origin, tagName) {
  *
  * @method verifyTagName
  * @param {string} tagName the tag name to verify.
- * @return {boolean} `true` if valid, `false` otherwise.
+ * @return {boolean} `true` if valid, falsy otherwise.
  */
 async function verifyTagName(tagName) {
-  return (await execa('git', ['check-ref-format', `refs/tags/${tagName}`], {reject: false})).code === 0;
+  try {
+    return (await execa('git', ['check-ref-format', `refs/tags/${tagName}`])).code === 0;
+  } catch (err) {
+    debug(err);
+  }
 }
 
 module.exports = {