Makefiles are machine-readable documentation that make your workflow reproducible. If the build process is a very continuous flow of operations within scope, it will do it well and also act as a documentation of all the dependence. For some long-term projects, Make has been used extensively and being maintained to do the job.
TeamCity is well suited for an organization using continuous integration, meaning you release code to production often, and an agile project management system. There are free versions available for small teams and enterprise versions available for large teams with many different builds. TeamCity is probably overkill for basic e-commerce or blog website builds that do not require much development after the initial launch
Fully customizable build process. Each step of the build process can be parameterized and customized to address specific needs of particular applications. This allowed us to easily convert from a custom VM-based environment to our current Docker-based environment.
Manages large numbers of build agents seamlessly. This allows us to run multiple builds on many different applications in a most efficient manner.
Build steps can be managed in an arbitrary manner, allowing some parts of the process to proceed in parallel while restricting others to depend on completion of all relevant steps.
TeamCity runs really well, even when sharing a small instance with other applications. The user interface adequately conveys important information without being overly bloated, and it is snappy. There isn't any significant overhead to build agents or unit test runners that we have measured.
In general, it is fair to say the support is sufficient although we do not deal with support directly. There are a lot of forum people chiming in with suggestions or recommendations of particular usage or issues we run into. Since it is open software, patch and fixes will be available from time to time. A lot of information is available in the web now for knowing GNU Make from learning, example, teaching, etc.
I'm a full-stack developer that has used various build tools, including Maven, Gradle, and NPM/yarn. For our C projects, I also investigated CMake and Ninja, but they seemed more difficult to learn and more tedious to work with. GNU Make is a single binary that can be easily downloaded, even for Windows under MingW32, is straightforward to learn, and works pretty well despite its age.
Jenkins relies on being open source as the primary driver for its success. This low cost is a huge factor for many companies, both small and large. The professional, free tier of TeamCity offers a huge amount of growth before ever needing to pay anything. I personally also find the user experience of TeamCity to be much better, both from a look and feel, as well as from an out-of-the-box feature set perspective. The big selling feature of ADO is its native integration with Azure. TeamCity integrates very well with out-of-the-box .NET support and greatly simplifies our use of another diverse tooling outside of the Microsoft ecosystem.
TeamCity was a key contributor to our organization's adoption of Agile.
TeamCity made it possible to KILL "It works on my laptop" conversations with Developers. If it does not compile in TeamCity - the project is not deployable. TeamCity's easy to use interface made it possible to quickly adopt a "Deploy Only from TeamCity" policy, further ensuring TeamCity Builds were the gold-standard for well-configured source code.
