Add pre-install and pre-reshim hooks

CHANGELOG.md

@@ -9,7 +9,10 @@ Features
   The following hooks will be executed when set:
 
     ```shell
+    pre_asdf_install_foo = echo will install foo version ${1}
     post_asdf_install_foo = echo installed foo version ${1}
+
+    pre_asdf_reshim_foo = echo will reshim foo version ${1}
     post_asdf_reshim_foo = echo reshimmed foo version ${1}
     
     pre_foo_bar = echo about to execute command bar from foo with args: ${@}

lib/commands/install.sh

@@ -96,6 +96,7 @@ install_tool_version() {
       export ASDF_INSTALL_PATH=$install_path
       export ASDF_CONCURRENCY=$concurrency
       mkdir "$install_path"
+      asdf_run_hook "pre_asdf_install_${plugin_name}" "$full_version"
       bash "${plugin_path}"/bin/install
     )
 

lib/commands/reshim.sh

@@ -20,6 +20,7 @@ reshim_command() {
 
   if [ "$full_version" != "" ]; then
     # generate for the whole package version
+    asdf_run_hook "pre_asdf_reshim_$plugin_name" "$full_version_name"
     generate_shims_for_version "$plugin_name" "$full_version"
     asdf_run_hook "post_asdf_reshim_$plugin_name" "$full_version"
   else
@@ -30,6 +31,7 @@ reshim_command() {
     for install in "${plugin_installs_path}"/*/; do
       local full_version_name
       full_version_name=$(basename "$install" | sed 's/ref\-/ref\:/')
+      asdf_run_hook "pre_asdf_reshim_$plugin_name" "$full_version_name"
       generate_shims_for_version "$plugin_name" "$full_version_name"
       remove_obsolete_shims "$plugin_name" "$full_version_name"
       asdf_run_hook "post_asdf_reshim_$plugin_name" "$full_version_name"

test/install_command.bats

@@ -139,9 +139,18 @@ teardown() {
   [ ! -f $ASDF_DIR/installs/dummy/system/version ]
 }
 
+@test "install command executes configured pre plugin install hook" {
+  cat > $HOME/.asdfrc <<-'EOM'
+pre_asdf_install_dummy = echo will install dummy $1
+EOM
+
+  run install_command dummy 1.0
+  [ "$output" == "will install dummy 1.0" ]
+}
+
 @test "install command executes configured post plugin install hook" {
   cat > $HOME/.asdfrc <<-'EOM'
-post_asdf_install_dummy = eval echo HEY $version FROM $plugin_name
+post_asdf_install_dummy = echo HEY $version FROM $plugin_name
 EOM
 
   run install_command dummy 1.0

test/reshim_command.bats

@@ -99,6 +99,17 @@ teardown() {
   [ "1" -eq "$(ls $ASDF_DIR/shims/dummy* | wc -l)" ]
 }
 
+@test "reshim command executes configured pre hook" {
+  run install_command dummy 1.0
+
+  cat > $HOME/.asdfrc <<-'EOM'
+pre_asdf_reshim_dummy = echo RESHIM
+EOM
+
+  run reshim_command dummy 1.0
+  [ "$output" == "RESHIM" ]
+}
+
 @test "reshim command executes configured post hook" {
   run install_command dummy 1.0