{"action":"created","issue":{"url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/258","labels_url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/258/labels{/name}","comments_url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/258/comments","events_url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/258/events","html_url":"https://github.com/skywinder/github-changelog-generator/pull/258","id":98978913,"number":258,"title":"Add --base option","user":{"login":"raphink","id":650430,"avatar_url":"https://avatars.githubusercontent.com/u/650430?v=3","gravatar_id":"","url":"https://api.github.com/users/raphink","html_url":"https://github.com/raphink","followers_url":"https://api.github.com/users/raphink/followers","following_url":"https://api.github.com/users/raphink/following{/other_user}","gists_url":"https://api.github.com/users/raphink/gists{/gist_id}","starred_url":"https://api.github.com/users/raphink/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/raphink/subscriptions","organizations_url":"https://api.github.com/users/raphink/orgs","repos_url":"https://api.github.com/users/raphink/repos","events_url":"https://api.github.com/users/raphink/events{/privacy}","received_events_url":"https://api.github.com/users/raphink/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/skywinder/github-changelog-generator/labels/enhancement","name":"enhancement","color":"84b6eb"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":23,"created_at":"2015-08-04T14:08:45Z","updated_at":"2015-08-25T12:56:20Z","closed_at":"2015-08-24T11:44:21Z","pull_request":{"url":"https://api.github.com/repos/skywinder/github-changelog-generator/pulls/258","html_url":"https://github.com/skywinder/github-changelog-generator/pull/258","diff_url":"https://github.com/skywinder/github-changelog-generator/pull/258.diff","patch_url":"https://github.com/skywinder/github-changelog-generator/pull/258.patch"},"body":"For projects migrating to an automatically generated CHANGELOG, it is useful to keep the old changes in a base file that is appended, so this can be used like this (considering the migration happened after tag  0.1.15):\r\n\r\n```\r\ngithub_changelog_generator --future-release 0.2.0 --since-tag 0.1.15 -b CHANGELOG.base.md \r\n```\r\n\r\nwhere CHANGELOG.base.md contains changes up to the 0.1.15 tag.\r\n\r\nNote: `--since-tag` is implemented in https://github.com/skywinder/github-changelog-generator/pull/257"},"comment":{"url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/comments/134577006","html_url":"https://github.com/skywinder/github-changelog-generator/pull/258#issuecomment-134577006","issue_url":"https://api.github.com/repos/skywinder/github-changelog-generator/issues/258","id":134577006,"user":{"login":"skywinder","id":3356474,"avatar_url":"https://avatars.githubusercontent.com/u/3356474?v=3","gravatar_id":"","url":"https://api.github.com/users/skywinder","html_url":"https://github.com/skywinder","followers_url":"https://api.github.com/users/skywinder/followers","following_url":"https://api.github.com/users/skywinder/following{/other_user}","gists_url":"https://api.github.com/users/skywinder/gists{/gist_id}","starred_url":"https://api.github.com/users/skywinder/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/skywinder/subscriptions","organizations_url":"https://api.github.com/users/skywinder/orgs","repos_url":"https://api.github.com/users/skywinder/repos","events_url":"https://api.github.com/users/skywinder/events{/privacy}","received_events_url":"https://api.github.com/users/skywinder/received_events","type":"User","site_admin":false},"created_at":"2015-08-25T12:56:20Z","updated_at":"2015-08-25T12:56:20Z","body":"Ok, got it. with the fix  #267 it should work fine. \r\nBut I' thinking about advanced logic for this option.\r\nPlease, check #269 with for details. I will be glad to hear any ideas/suggestions."}}