Putting
syntax:regexp
*.foo.[a-z]{1,4}
in .gitignore does not work. I remember seeing
syntax:glob
and
syntax:regexp
some time ago in some .gitignore files, but I couldn't file such syntax in Git manual. Is there a way to use regular regex in .gitignore?
Without using any regex syntax that might or might not be supported (I don't see any evidence for it either), you could get the same behavior with four rules:
*.foo.[a-z]
*.foo.[a-z][a-z]
*.foo.[a-z][a-z][a-z]
*.foo.[a-z][a-z][a-z][a-z]
If you wanted to compromise slightly, you could use *.foo.?* (anything ending in foo, a dot, and at least one more character), or *.foo.[a-z]* (anything ending in foo and then an extension that starts off alphabetic).
You are confusing .hgignore with .gitignore.
There is no such thing as a "normal file name extension"; what you can do to start off with is to add the following:
**/foo.*
**/ will match foo.* in all directories.
.gitignore uses the shell glob syntax:
Git treats the pattern as a shell glob suitable for consumption by fnmatch(3) with the FNM_PATHNAME flag: wildcards in the pattern will not match a / in the pathname.
