CODEWITHSUNDEEP
gitgithubloggingshowfilepath
YusufUMS
YusufUMS

Reputation: 1493

Retrieve a path of a file in specific commit in Git

I have a list of commit id and filenames from a git repository. what I need is to get the file path of each file in the list based on the commit id. But I don't know how to do that using git command.

Suppose I have a commit id and filename: [cb85815bc1, GuiCommonElements.java]. Now I need the full path of the file in that commit id. So, the output should be like path/path/path/GuiCommonElements.java.

I tried many commands but didn't give me such results.

git show cb85815bc1 --grep='GuiCommonElements.java'
git log cb85815bc1 --grep='GuiCommonElements.java' --name-only

Any help would be appreciated.

Upvotes: 2

Views: 5063

Answers (1)

torek
torek

Reputation: 489718

git show (or git log -p, which does something extremely similar but operates on more than one commit) will diff the commit against its parent(s). Adding --name-only reduces the diff output to show only changed-file-names, rather than changed-file-names plus the instruction-set.

What you probably want here is to use git ls-tree, which shows the names of files contained within a commit. If you are not at the top level of the repository, git ls-tree defaults to showing only things in the current directory, so you probably want to add -r --full-tree. You then want to look for things that contain, or end with, your selected name:

git ls-tree -r --full-tree cb85815bc1 | grep GuiCommonElements.java

This is slightly flawed as grep itself takes regular expression arguments and shows lines that match, so not only will it show files like:

lib/old/GuiCommonElements.java
lib/new/GuiCommonElements.java

but also:

other/ThisIsNotGuiCommonElements.java

(because that contains GuiCommonElements.java) and:

other/GuiCommonElementsXJava

(because . matches one of any character, including X). But it's probably good enough, and if you like, you can shore it up a bit.

The git ls-tree documentation claims that it takes <path>... arguments that are "patterns to match", but glob patterns seem not to work here: If globs worked, '**/GuiCommonElements.java' would do the trick, but in my test just now they didn't.

Upvotes: 4

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