Re: [RFC] global(1): use of logical path by default

[Shigio YAMAGUCHI]

Hi all,

I withdraw the RFC, because I have found a problem.

Using the current implementation, we cannot sometimes

access paths generated by global(1).

(using logical path)

$ ls main.c

main.c

$ ln -s /usr/src/lib/libc libc

$ gtags

$ cd libc

$ global -P 'main.c'

../main.c

$ ls -l ../main.c

ls: ../main.c: No such file or directory        <= !!!

Since '..' links to '/usr/src/lib', ls(1) cannot find '../main.c'.

This is against a principle that all paths generated by global(1)

are accessible. It seems difficult to solve this problem, because

it is caused by incompleteness of symbolic link.

Regards,

Shigio

2015-04-20 18:04 GMT+09:00 Shigio YAMAGUCHI <address@hidden>:

Hi all,

I would like to change global(1) to use logical path by default.

This means that global(1) uses logical path even if GTAGSLOGICALPATH

is not set.

[ChangeLog]

> June 28 2014, Shigio YAMAGUCHI

> 

>         New environment variable GTAGSLOGICALPATH was added.

>         If it is set then GLOBAL use logical path (PWD), else

>         physical path. This variable is now undocumented.

Additionally, I would like to remove GTAGSLOGICALPATH and add

GTAGSPHYSICALPATH instead. If GTAGSPHYSICALPATH is set, global(1)

follows the current (old) specification.

[What is logical path]

Logical path is a path name which include symbolic link as a

unit of the path.

o Logical path is easier to use. 

e.g.

$ ln -s /usr/src/lib/libc libc

$ gtags

$ cd libc

(using physical path)

$ global strlen

global: GTAGS not found.

$ _

(using logical path)

$ global strlen

arm/string/strlen.S

string/strlen.c

$ _

o It seems that there is no problem to use logical path.

  (If there is any problem, please let me know.)

o GNU bash use logical path by default. GNU tools should follow the same manners.

[Argument in the past]

Here is an argument about this issue.

http://lists.gnu.org/archive/html/bug-global/2014-06/msg00010.html

What do you think?

Regards,

Shigio

-- 

Shigio YAMAGUCHI <address@hidden>

PGP fingerprint: D1CB 0B89 B346 4AB6 5663  C4B6 3CA5 BBB3 57BE DDA3

--

Shigio YAMAGUCHI <address@hidden>

PGP fingerprint: D1CB 0B89 B346 4AB6 5663  C4B6 3CA5 BBB3 57BE DDA3