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Allow to limit autoenv_source_parent's upward recursion

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This allows to use `autoenv_source_parent ..` to only look in the parent
directory.
This commit is contained in:
Daniel Hahler 2015-10-09 22:13:36 +02:00
parent 58268b8da3
commit eebdce22df
3 changed files with 108 additions and 4 deletions
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12
README.md
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@ -57,10 +57,16 @@ The varstash library has been taken from smartcd, and was optimized for Zsh.
### `autoenv_source_parent()`
zsh-autoenv will stop looking for `.autoenv.zsh` files after the first one has
been found. But you can use the function `autoenv_source_parent` to source a
parent `.autoenv.zsh` file from there.
zsh-autoenv will stop looking for `.autoenv.zsh` files upwards after the first
one has been found, but you can use the function `autoenv_source_parent` to
source the next `.autoenv.zsh` file upwards the directory tree from there.
The function accepts an optional argument, which allows to stop looking before
the file system root is reached:
```zsh
autoenv_source_parent ../..
```
## Installation

8
autoenv.zsh
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@ -48,7 +48,9 @@ fi
# This is useful if you want to use a base .autoenv.zsh file for a directory
# subtree.
autoenv_source_parent() {
local parent_env_file=$(_autoenv_get_file_upwards ${autoenv_env_file:h})
local look_until=${1:-/}
local parent_env_file=$(_autoenv_get_file_upwards \
${autoenv_env_file:h} ${AUTOENV_FILE_ENTER} $look_until)
if [[ -n $parent_env_file ]] \
&& _autoenv_check_authorized_env_file $parent_env_file; then
@ -283,6 +285,7 @@ _autoenv_source() {
_autoenv_get_file_upwards() {
local look_from=${1:-$PWD}
local look_for=${2:-$AUTOENV_FILE_ENTER}
local look_until=${${3:-/}:A}
# Manually look in parent dirs. An extended Zsh glob should use Y1 for
# performance reasons, which is only available in zsh-5.0.5-146-g9381bb6.
@ -300,6 +303,9 @@ _autoenv_get_file_upwards() {
break
fi
if [[ $parent_dir == $look_until ]]; then
break
fi
last=$parent_dir
parent_dir="${parent_dir}/.."
done

92
tests/source-parent-until.t Normal file
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@ -0,0 +1,92 @@
Test recursing into parent .autoenv.zsh files.
$ source $TESTDIR/setup.zsh || return 1
Setup env actions / output.
$ AUTOENV_LOOK_UPWARDS=1
Create env files in root dir.
$ echo 'echo ENTERED_root: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv.zsh
$ echo 'echo LEFT_root: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv_leave.zsh
$ test_autoenv_auth_env_files
Create env files in sub dir.
$ mkdir -p sub/sub2/sub3/sub4
$ cd sub
ENTERED_root: PWD:sub from:source-parent-until.t to:sub
$ echo 'echo ENTERED_sub: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv.zsh
$ echo 'echo LEFT_sub: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv_leave.zsh
$ test_autoenv_auth_env_files
$ cd sub2
ENTERED_sub: PWD:sub2 from:sub to:sub2
$ echo 'echo ENTERED_sub2: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv.zsh
$ echo 'echo LEFT_sub2: PWD:${PWD:t} from:${autoenv_from_dir:t} to:${autoenv_to_dir:t}' > .autoenv_leave.zsh
$ test_autoenv_auth_env_files
The actual tests.
# $ cd sub3
# ENTERED_sub2: PWD:sub3 from:sub2 to:sub3
# $ cd ../..
# LEFT_sub2: PWD:sub from:sub3 to:sub
$ cd ..
Add sub/sub2/sub3/.autoenv.zsh file, with a call to autoenv_source_parent,
stopping at the parent dir.
$ echo "echo autoenv_source_parent_from_sub3:\nautoenv_source_parent ..\necho done_sub3\n" > sub2/sub3/.autoenv.zsh
$ test_autoenv_add_to_env sub2/sub3/.autoenv.zsh
$ cd sub2/sub3
autoenv_source_parent_from_sub3:
ENTERED_sub2: PWD:sub3 from:sub to:sub3
done_sub3
Look up to `../..` now.
$ cd ../..
LEFT_sub2: PWD:sub from:sub3 to:sub
$ echo "echo autoenv_source_parent_from_sub3:\nautoenv_source_parent ../..\necho done_sub3\n" >| sub2/sub3/.autoenv.zsh
$ test_autoenv_add_to_env sub2/sub3/.autoenv.zsh
$ cd sub2/sub3
autoenv_source_parent_from_sub3:
ENTERED_sub2: PWD:sub3 from:sub to:sub3
done_sub3
Remove intermediate .autoenv.zsh from sub2.
$ cd ../..
LEFT_sub2: PWD:sub from:sub3 to:sub
$ rm sub2/.autoenv.zsh
Should source "sub" for ../.. now.
$ echo "echo autoenv_source_parent_from_sub3:\nautoenv_source_parent ../..\necho done_sub3\n" >| sub2/sub3/.autoenv.zsh
$ test_autoenv_add_to_env sub2/sub3/.autoenv.zsh
$ cd sub2/sub3
autoenv_source_parent_from_sub3:
ENTERED_sub: PWD:sub3 from:sub to:sub3
done_sub3
Should source nothing for .. now.
$ cd ../..
$ echo "echo autoenv_source_parent_from_sub3:\nautoenv_source_parent ..\necho done_sub3\n" >| sub2/sub3/.autoenv.zsh
$ test_autoenv_add_to_env sub2/sub3/.autoenv.zsh
$ cd sub2/sub3
autoenv_source_parent_from_sub3:
done_sub3
Look up to "/" (default).
$ cd ../..
$ echo "echo autoenv_source_parent_from_sub3:\nautoenv_source_parent /\necho done_sub3\n" >| sub2/sub3/.autoenv.zsh
$ test_autoenv_add_to_env sub2/sub3/.autoenv.zsh
$ cd sub2/sub3
autoenv_source_parent_from_sub3:
ENTERED_sub: PWD:sub3 from:sub to:sub3
done_sub3