From 73e605d9feec3985e35047e75eb49c3e2fcd9fd5 Mon Sep 17 00:00:00 2001
From: Roland Hopferwieser <develop@int0x80.at>
Date: Tue, 29 Aug 2017 17:10:00 +0200
Subject: [PATCH] Add function to write aliases
---
doc/vcsh.1.ronn | 8 ++++++--
vcsh | 19 ++++++++++++++++++-
2 files changed, 24 insertions(+), 3 deletions(-)
diff --git a/doc/vcsh.1.ronn b/doc/vcsh.1.ronn
index b517d7c..cc7edc2 100644
--- a/doc/vcsh.1.ronn
+++ b/doc/vcsh.1.ronn
@@ -5,7 +5,7 @@ vcsh(1) - Version Control System for $HOME - multiple Git repositories in $HOME
`vcsh` [<options>] <command>
-`vcsh` alias [<alias-name>]
+`vcsh` alias [<alias>[=<command>]]
`vcsh` clone [-b <branch>] <url> [<repo>]
@@ -85,7 +85,11 @@ an interactive user.
## COMMANDS
* alias:
- List defined aliases.
+ List all defined aliases.
+
+ `<alias>`: Print the right side of alias definition.
+
+ `<alias>=<command>`: Add an alias definition to <XDG_CONFIG_HOME/vcsh/aliases>.
* clone:
Clone an existing repository.
diff --git a/vcsh b/vcsh
index 6ad9fd6..86538d0 100755
--- a/vcsh
+++ b/vcsh
@@ -179,11 +179,28 @@ alias_get() {
fi
}
+alias_write() {
+ [ -w "$XDG_CONFIG_HOME/vcsh/aliases" ] ||
+ [ ! -e "$XDG_CONFIG_HOME/vcsh/aliases" -a -w "$XDG_CONFIG_HOME/vcsh/" ] ||
+ fatal "File '$XDG_CONFIG_HOME/vcsh/aliases' not writeable"
+ [ "$2" == '=' ] || fatal 'Invalid alias format'
+ if [ -n "$(alias_get $1)" ]; then
+ local regex="s/^$1\s*=.*/$@/"
+ sed -i -re "$regex" "$XDG_CONFIG_HOME/vcsh/aliases"
+ else
+ echo "$@" >> "$XDG_CONFIG_HOME/vcsh/aliases"
+ fi
+}
+
aliases() {
- local a cmd
if [ -n "$1" ]; then
+ local alias=$(<<<"$@" sed -re 's/(\w+)\s*=\s*(\w.*)/\1 = \2/')
+ if [ -n "$alias" ]; then
+ alias_write $alias
+ fi
alias_get "$1"
else
+ local a cmd
while read a cmd; do
echo $a = $cmd
done <<< "$(alias_read)"
--
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