Add installation script in install.sh

[rouson]

No description provided.

[certik]

Thanks @rouson for sending it. I think this only works on Linux?

[rouson]

@certik it was developed on macOS. The goal will be for it to also work on Linux (I'll test it on Lubuntu) and on the Windows Subsystem for Linux (which I'll eventually test too but I'm not sure of the timeline as I need to purchase Windows). Also, this first version is skeletal. Over time, I'll attempt to make it more robust and add features. For example, I'll add

• --help flag
• the option to specify an install path
• use of sudo for installation paths that require it

If you have other requested features, let me know and feel free to submit issues.

In theory, I can borrow a lot from the OpenCoarrays installer, but that installer is written in bash 3 because it was the default macOS shell until recently. Now the default macOS shell is zsh and @everythingfunctional explained to me that the default on Linux is dash, of which I never heard until yesterday. If possible, I'll go with dash because it's POSIX-compliant, but that depends on how much I'm able to borrow or convert from the OpenCoarrays installer. It also depends on whether one can expect to find dash preinstalled on most platforms across each of the aforementioned operating systems.

[certik]

Hold on, I think a mistake was made in this PR. It seems to include tons of unrelated changes. @everythingfunctional did you merge more things by a mistake? When you update a PR, please ask for another review. We should be merging PRs with a nice git history that only do one thing. This PR, at least according to GitHub is mixing together many unrelated changes. It could also be just a mistake at GitHub, but in that case we should simply rebase on top of the latest master to ensure the PR is small and in this case only includes the install.sh script.

[everythingfunctional]

I think what Github is now showing after-the-fact is not correct. (I'm pretty sure) when I clicked merge, the only change showing was the addition of the install.sh script. There were no changes made, only merging in the master branch to make sure there were no conflicts (which was admittedly unnecessary).

[certik]

Before you merged, master was at the commit: 4443986, which is fine. This PR was at a commit cda71a0, and when you clicked "Merge", GitHub added the merge commit a22ce1c, which is now the latest master.

If you look at cda71a0 (i.e., this PR) and the history in there, this is what I see:

*   cda71a0 (HEAD) Merge branch 'installer' of github.com:sourceryinstitute/fpm into installer
|\  
| * b44b567 fix(install.sh): define install_path earlier
| * de96c4a Update install.sh
| * 7eca78c add skeletal installer
| * d64e54a WIP: start installation script
* | e331951 fix(install.sh): define install_path earlier
* | 108a997 Update install.sh
* | 6624b64 add skeletal installer
* | 70b25be WIP: start installation script
* |   4443986 Merge pull request #213 from everythingfunctional/bootstrap_submodule_support
|\ \  
| * | 488bdd0 Add .gitignore file in submodules example package
| * | 03c9efc Add test with submodule example project and fix .smod naming convention
| * | f196336 Fix CI scripts
| * |   39cca4d Merge branch 'master' into bootstrap_submodule_support
| |\ \  
| * | | e7b135b convert buildDirectory path to native in buildProgram
...

So it seems it is not clean --- the commits are there twice, such as b44b567 and e331951, etc. I don't quite understand how it happened, but it does not seem right.

Anyway, we can probably keep it, since the alternative is to revert this.