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Add new function magithub-browse-file #373

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Add new function magithub-browse-file #373

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dba4ebe
Add new function magithub-browse-file
manateelazycat Sep 16, 2018
aac9e82
Make magithub-browse-file support file line number and dired mode.
manateelazycat Sep 16, 2018
d8998d9
Improve code of magithub-browse-file with vermiculus suggestions
manateelazycat Sep 16, 2018
dac7894
Use let-alist instead alist-get
manateelazycat Sep 16, 2018
8737949
If if-let and use (magit-git-string "rev-parse" "--abbrev-ref" "HEAD"…
manateelazycat Sep 16, 2018
946c331
Fix with vermiculus suggestions
manateelazycat Sep 18, 2018
5a95627
Support file and line argument now.
manateelazycat Sep 20, 2018
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27 changes: 27 additions & 0 deletions magithub.el
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Expand Up @@ -89,6 +89,33 @@
(user-error "Not a GitHub repository"))
(magithub-repo-visit (magithub-repo)))

(defun magithub-browse-file ()
"Open the git file in your browser.

Jump to file with line number if you in buffer of git file.
Jump to file if you in dired mode.
Jump to parent directory if you not in buffer with non-dired mode."
(interactive)
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The (interactive) form can give us a value for a formal parameter when used interactively. That way, magithub-browse-file could take a file directly (e.g., (magithub-browse-file "some/path/relative/to/topdir.txt")).

Your interactive form could look like this (untested):

(interactive
 (list
  ;; provide a default if we're in a git repository
  (when-let ((toplevel (magit-toplevel)))
    ;; remove the directory-part -- just get the path
    ;; relative to topdir
    (string-remove-prefix
     toplevel
     (let (filepath)
       (cond
        ;; the current buffer is attached to a file; use that
        ((setq filepath (buffer-file-name))
         (format "%s#L%s" filepath (line-number-at-pos)))
        ;; we're in dired;use the file at point
        ((derived-mode-p 'dired-mode)
         (dired-file-name-at-point))
        ;; dunno; use the current directory
        (t default-directory)))))))

Note this moves a lot of the logic out of the main body of the function -- logic that's for interactive use only, anyway.

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Or better yet, split out the arguments into FILE and LINE.

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No, it's ugly that put everything in interactive, I will write new version to handle file and line argument.

(unless (magithub-github-repository-p)
(user-error "Not a GitHub repository"))
(let* ((github-branch-path (let-alist (magithub-repo)
(format "%s/%s/%s/"
.html_url
"blob"
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you can incorporate this literal value directly into the format string

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I don't understand how to improve this line with your suggestion. ;)

(magit-git-string "rev-parse" "HEAD"))))
(file-relative-path (string-remove-prefix
(magit-toplevel)
(expand-file-name
(if-let ((filepath (buffer-file-name)))
;; Get file relative path and line number if `buffer-file-name' is non-nil.
(format "%s#L%s" filepath (line-number-at-pos))
(if (derived-mode-p 'dired-mode)
;; Get file relative path if in `dired-mode'
(dired-file-name-at-point)
;; Otherwise, get current directory as relative path
default-directory))))))
(browse-url (concat github-branch-path file-relative-path))))

(defvar magithub-after-create-messages
'("Don't be shy!"
"Don't let your dreams be dreams!")
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