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path: root/cmd/podman/common/completion_test.go
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* shell completion --format: support maps and functionsPaul Holzinger2022-05-18
| | | | | | | | | | | | | | | | | | | Currently we only support structs in a template string like this: `{{.var1.test.` -> this meams that test must be a struct field on var1. Now with this var1 and test could also be either a map or function which returns a struct. A actual example: `podman container inspect --format {{.NetworkSettings.Networks.netname.` Now we can complete the struct fileds after netname. Note that this cannot complete map keys since they are empty by default, so it is impossible to get them in the completion logic. Also this fixes a panic with embeeded nil structs Fixes #14223 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: fix embedded struct handlingPaul Holzinger2022-05-18
| | | | | | | | | | | | When a struct is embeeded it is possible that we end up with same names but different types, this results in incorrect completions. The go template logic always preferes the actual field/method name before the one from the embedded one. Thefore the completion logic should do the same. First get all method/fields names from the struct and then only add the field names from the embedded struct when they are not already present in the list. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: only show usable methodsPaul Holzinger2022-05-18
| | | | | | | | In a template you cann call function that are defined on a type, however this is only useful if they return one value. If it returns more than one the template cannot know what value it has to display. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: only show exported fieldsPaul Holzinger2022-05-18
| | | | | | | go templates only support exported fields, so the completion logic must filter the private fields out. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: work with pointer functionsPaul Holzinger2022-05-12
| | | | | | | | | | | The completion logic currently suggest also the functions that are defined for this type. However this did not work correctly when it was defined as pointer to that type on not the actual type. This commit fixes that problem. To test you can compare the difference between `podman stats --format {{.[TAB]` with and without this commit. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: use anonymous struct field oncePaul Holzinger2022-04-28
| | | | | | | | | | We should not include the anonymous twice in the suggestions. one example is `podman network ls --format {{.` it will also show `{{.Network` but since Network is the actual struct all fields are already shown so there is no need for it to be suggested. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* shell completion --format: work with nil structsPaul Holzinger2022-04-28
| | | | | | | | | | | | | AutocompleteFormat() takes the format struct as argument. Often the structs are deeply nested and contain other structs. Up until now if there was a pointer to a struct the logic was not able to get the field names from that, simply because the pointer was nil. However it is possible to create a new initialized type with reflect.New(). This allows us to complete all struct fields/functions even when there nil pointers. Therefore we can drop the extra initialization which was done by some callers. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* bump go module to version 4Valentin Rothberg2022-01-18
| | | | | | | | | | | | | Automated for .go files via gomove [1]: `gomove github.com/containers/podman/v3 github.com/containers/podman/v4` Remaining files via vgrep [2]: `vgrep github.com/containers/podman/v3` [1] https://github.com/KSubedi/gomove [2] https://github.com/vrothberg/vgrep Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Shell completion for --format with anonymous fieldsPaul Holzinger2021-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit d81021ed265e I introduced shell completion for the `--format` flag. This is a very nice way to complete go template field names. However it did not work correct for anonymous fields. In this case the child fields can be accessed directly from the parent. For example: ``` type Anonymous struct { Field1 string Field2 string ... } type MyType struct { Anonymous } var s = MyType{} ``` Now if you want to access a field from the Anonymous struct you can just do `s.Field1`. The same is allowed for go templates, using `{{.Field1}}` should work. This commit adds this functionality, if the field is anonymous read the child field names recursively and add them to the suggestions. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Add go template shell completion for --formatPaul Holzinger2021-04-22
The --format flags accepts go template strings. I use this often but I consistently forget the field names. This commit adds a way to provide shell completion for the --format flag. It works by automatically receiving the field names with the reflect package from the given struct. This requires almost no maintenance since this ensures that we always use the correct field names. This also works for nested structs. ``` $ podman ps --format "{{.P" {{.Pid}} {{.PIDNS}} {{.Pod}} {{.PodName}} {{.Ports}} ``` NOTE: This only works when you use quotes otherwise the shell does not provide completions. Also this does not work for fish at the moment. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>