git2r (version 0.10.1)

[,git_tree,integer,missing-method: Extract object from tree

Description

Lookup a tree entry by its position in the tree

Usage

## S3 method for class 'git_tree,integer,missing':
[(x, i)
## S3 method for class 'git_tree,numeric,missing':
[(x, i)
## S3 method for class 'git_tree,logical,missing':
[(x, i)
## S3 method for class 'git_tree,character,missing':
[(x, i)

Arguments

x

The tree object

i

The index (integer or logical) of the tree object to extract. If negative values, all elements except those indicated are selected. A character vector to match against the names of objects to extract.

Value

• Git object

Examples

## Initialize a temporary repository
path <- tempfile(pattern="git2r-")
dir.create(path)
dir.create(file.path(path, "subfolder"))
repo <- init(path)

## Create a user
config(repo, user.name="Alice", user.email="[e-mail]")

## Create three files and commit
writeLines("First file",  file.path(path, "example-1.txt"))
writeLines("Second file", file.path(path, "subfolder/example-2.txt"))
writeLines("Third file",  file.path(path, "example-3.txt"))
add(repo, c("example-1.txt", "subfolder/example-2.txt", "example-3.txt"))
new_commit <- commit(repo, "Commit message")

## Pick a tree in the repository
tree_object <- tree(new_commit)

## Summarize tree
summary(tree_object)

## Select item by name
tree_object["example-1.txt"]

## Select first item in tree
tree_object[1]

## Select first three items in tree
tree_object[1:3]

## Select all blobs in tree
tree_object[sapply(as(tree_object, 'list'), is_blob)]