On Monday, 16 November 2020 at 10:21:27 UTC, Per Nordlöw wrote:
I need a function that gets the relative path of a file in a
Git-repo and preferrably also its status.
I'm not sure I understand the question. I have written two
programs, hopefully one of them does what you want :D
Either via an external call to `git` or optionally via `libgit`
(if available).
Which DUB packages do you prefer?
For such small tasks, the easiest is to just use the shell.
1st answer:
Initially I thought that you want to convert the current working
directory (I don't know why - I didn't read well the question
apparently :D) to a path relative to the root git repo path.
Here's my solution to that problem:
```d
import std.exception : enforce;
import std.format : format;
import std.file : getcwd;
import std.path : asRelativePath;
import std.process : executeShell;
import std.stdio : writeln;
import std.string : stripRight;
void main()
{
auto cwd = getcwd();
const gitRootPathResult = executeShell("git rev-parse
--show-toplevel");
enforce(
gitRootPathResult.status == 0,
"`git` is not installed, or '%s' is not a git
repo".format(cwd)
);
// Trim trailing whitespace from the shell invocation
const gitRoot = gitRootPathResult.output.stripRight;
debug writeln("Git root path: ", gitRoot);
gitRoot
.asRelativePath(getcwd())
.writeln;
}
```
Example usage:
```
$ cd ~/code/repos/dlang/dlang/dmd/src/dmd/backend/
$ dmd -run ~/code/cwd_to_git_relative_path.d
../../..
# Sanity check:
$ dmd -debug -run ~/code/cwd_to_git_relative_path.d
Git root path: /home/zlx/code/repos/dlang/dlang/dmd
../../..
$ cd '../../..' && pwd
/home/zlx/code/repos/dlang/dlang/dmd
```
2nd answer:
Reading a second time, I don't understand what you meant by "gets
the relative path of a file in a Git-repo". Did you mean that it
receives an absolute path (or relative to current working
directory) to a file and converts it to a path relative to a git
repo? If so, here's my solution and for determining the status of
a file:
https://gist.github.com/PetarKirov/b4c8b64e7fc9bb7391901bcb541ddf3a
