fatih / gomodifytags Goto Github PK

Go tool to modify struct field tags

License: BSD 3-Clause "New" or "Revised" License

Go 100.00%

gomodifytags's Issues

Support Emacs

I create an emacs-plugin named emacs-go-tag.
This package builds ongomodifytags and is used to edit field tags for golang struct fields.
This package is inspired by GoAddTags of vim-go and go-add-tags.

support -field option

gomodifytags -file test.go -struct PostReviewProcess -field Id --add-tags gorm -w

We can specify the field option to support modifying the tag of the specific field of the structure？
in structSelection function： add codes like below：

// struct selects all lines inside a struct

start := c.fset.Position(encStruct.Pos()).Line
end := c.fset.Position(encStruct.End()).Line

if c.fieldName!=""{
	for i:=0;i<len(encStruct.Fields.List);i++{
		f:=encStruct.Fields.List[i]
		if len(f.Names)>0{
			if f.Names[0].Name==c.fieldName{
				start=c.fset.Position(f.Pos()).Line
				end=start
				break
			}
		}
	}
}

Cannot modify tags: invalid line directive found

Committer: GitHub [email protected] 2019-07-16 15:06:38 is normal.

Committer: Fatih Arslan [email protected] 2019-08-12 17:45:01 prompt：

Cannot modify tags: invalid line directive found

type BillStatQuery struct {
	BuildingId string
	SearchKey  string
	Floor      int
	RoomId     string
}

Support modified files

It would be nice if this tool could accept modified files on stdin instead of requiring editors to save them off as temp files.

I would recommend using the same archive format as guru and gogetdoc, which has a parser in the go/buildutil package.

The changes should be pretty straightforward:

document the archive format in the readme
add a -modified flag, and if present, use buildutil.ParseOverlayArchive to read the archive from stdin
if the file is present in the archive, populate the src argument of parser.ParseFile

With these updates, you'll be able to remove the temp files from vim-go and reuse the same code you already use for guru and gogetdoc.

I'm happy to take a stab at implementing these changes if you agree with the idea.

Parsing fails for test files with -modified flag

While trying to run gomodifytags with -modified flag on a test file, we get the below error:

"failed to parse -modified archive: parsing size of archive file .: strconv.ParseUint: parsing "}": invalid syntax"

copy tag value and options

I wonder if its possible and I'm missing something, or if it is something that you might want to accept as a PR.

tl;dr: I want to copy all yaml tag options and names to json

so, in:

package main

type Foo struct {
  Bar string `yaml:"bar,omitempty"`
}

out:

package main

type Foo struct {
  Bar string `yaml:"bar,omitempty" json:"bar,omitempty"`
}

is there a good way to do that with the current gomodifytags version?

Extra line returned when -format json is used

In the below example, lines from 61(start) to 66(end): 6 lines in total are expected to be in the output.

But the 7th line: line 67 (with just the })makes it to the output as well.

You can see this in the example in the README as well

{
  "start": 4,
  "end": 11,
  "lines": [
    "\tName        string `xml:\"name\"`",
    "\tPort        int    `xml:\"port\"`",
    "\tEnableLogs  bool   `xml:\"enable_logs\"`",
    "\tBaseDomain  string `xml:\"base_domain\"`",
    "\tCredentials struct {",
    "\t\tUsername string `xml:\"username\"`",
    "\t\tPassword string `xml:\"password\"`",
    "\t} `xml:\"credentials\"`",
    "}"
  ]
}

Unable to install gomodifytags tool on VS Code

I have been unable to download and install the gomodifytags package automatically via the install all option and when I attempt to do it manually via the go install github.com/fatih/gomodifytags@latest command, I get the following as feedback:

# github.com/fatih/gomodifytags
C:\Program Files\Go\pkg\tool\windows_amd64\link.exe: C:\Users\IAN\AppData\Local\go-build\7e\7ead9b6fbf2293b80b2d0531d108001d1e31a4fd463224b9b481fc70392a1baa-d: not package main

How can I resolve this challenge?

Adding Title Case to the list of supported cases

Hi, I was wondering if we could add an additional option of 'Title Case'. I came across its usefulness while adding csv tags to my structs.

I've written a simple code fix for it, but I'm unable to push the branch to this repo. I would appreciate any feedback on this.

Unexported embedded struct with skip-unexported option is still tagged

Input:

type stationEvent struct{}

type StationConnectorUnplugged struct {
	stationEvent
	ConnectorID    int
	MeterStop      int
	TransactionID  int32
	ChargingCardID identifier.ChargingCardID
	Timestamp      time.Time `json:"timestamp`
}

Output:

type stationEvent struct{}

type StationConnectorUnplugged struct {
        stationEvent   `json:"stationEvent"`
        ConnectorID    int                       `json:"connectorID"`
        MeterStop      int                       `json:"meterStop"`
        TransactionID  int32                     `json:"transactionID"`
        ChargingCardID identifier.ChargingCardID `json:"chargingCardID"`
        Timestamp      time.Time                 `json:"timestamp`
}

Expected:

type stationEvent struct{}

type StationConnectorUnplugged struct {
        stationEvent
        ConnectorID    int                       `json:"connectorID"`
        MeterStop      int                       `json:"meterStop"`
        TransactionID  int32                     `json:"transactionID"`
        ChargingCardID identifier.ChargingCardID `json:"chargingCardID"`
        Timestamp      time.Time                 `json:"timestamp`
}

Support for lisp-case transforms

Hi,

Would it be possible to add support for lisp-case, where the words are separated by hyphens?

Wrong output when the file isn't gofmt'd

With the following file:

$ cat tags.go
package a
type x struct {
    Foo int
    bar int
}

The tool gives the wrong results.

Should be start=2:

$ gomodifytags -format json -file tags.go -transform snakecase -line 3,4 -add-tags json -add-options json=
{
  "start": 3,
  "end": 4,
  "lines": [
    "type x struct {",
    "\tFoo int `json:\"foo\"`"
  ]
}

Should be start=2, and one line is missing from the output:

$ gomodifytags -format json -file tags.go -transform snakecase -line 3,3 -add-tags json -add-options json=
{
  "start": 3,
  "end": 3,
  "lines": [
    "type x struct {"
  ]
}

start is correct, but the last line (}) missing:

$ gomodifytags -format json -file tags.go -transform snakecase -offset 23 -add-tags json -add-options json=
{
  "start": 2,
  "end": 5,
  "lines": [
    "",
    "type x struct {",
    "\tFoo int `json:\"foo\"`",
    "\tbar int `json:\"bar\"`"
  ]
}

It seems that the tool operates on the file as if they're gofmt'd.

Unable to build with GCC go v7.1.1

As a result of this go-plus Atom package doesn't install properly.

Google go distribution, builds fine

$ go version
go version go1.8.3 linux/amd64

$ go get -u -x github.com/fatih/gomodifytags
cd .
git clone https://github.com/fatih/gomodifytags /home/lukas/dev/go/src/github.com/fatih/gomodifytags
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git submodule update --init --recursive
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git show-ref
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git submodule update --init --recursive
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
WORK=/tmp/go-build216595188
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag
/usr/lib/go/pkg/tool/linux_amd64/compile -o $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag.a -trimpath $WORK -p github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag -complete -buildid 72cb72096acf71b6d7bca0347aae7ff2bde3d9c3 -D _/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag -I $WORK -pack ./tags.go
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil/_obj/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase
/usr/lib/go/pkg/tool/linux_amd64/compile -o $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase.a -trimpath $WORK -p github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase -complete -buildid c4d679f88a92a34fb977a677836b8e41a5e27396 -D _/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase -I $WORK -pack ./camelcase.go
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil
/usr/lib/go/pkg/tool/linux_amd64/compile -o $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil.a -trimpath $WORK -p github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil -complete -buildid 02625f824d9f8b09a97009c9953709ebbb8d7293 -D _/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil -I $WORK -pack ./allpackages.go ./fakecontext.go ./overlay.go ./tags.go ./util.go
mkdir -p /home/lukas/dev/go/pkg/linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/
cp $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase.a /home/lukas/dev/go/pkg/linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase.a
cp $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag.a /home/lukas/dev/go/pkg/linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag.a
mkdir -p /home/lukas/dev/go/pkg/linux_amd64/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/
cp $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil.a /home/lukas/dev/go/pkg/linux_amd64/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil.a
mkdir -p $WORK/github.com/fatih/gomodifytags/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/_obj/exe/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
/usr/lib/go/pkg/tool/linux_amd64/compile -o $WORK/github.com/fatih/gomodifytags.a -trimpath $WORK -p main -complete -buildid 4183ffe72db4ba7f3b7cc40f68d677722530a383 -importmap github.com/fatih/camelcase=github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase -importmap github.com/fatih/structtag=github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag -importmap golang.org/x/tools/go/buildutil=github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil -D _/home/lukas/dev/go/src/github.com/fatih/gomodifytags -I $WORK -I /home/lukas/dev/go/pkg/linux_amd64 -pack ./main.go
cd .
/usr/lib/go/pkg/tool/linux_amd64/link -o $WORK/github.com/fatih/gomodifytags/_obj/exe/a.out -L $WORK -L /home/lukas/dev/go/pkg/linux_amd64 -extld=gcc -buildmode=exe -buildid=4183ffe72db4ba7f3b7cc40f68d677722530a383 $WORK/github.com/fatih/gomodifytags.a
mkdir -p /home/lukas/dev/go/bin/
cp $WORK/github.com/fatih/gomodifytags/_obj/exe/a.out /home/lukas/dev/go/bin/gomodifytags

GCC go, won't build

$ go version
go version go1.8.1 gccgo (GCC) 7.1.1 20170528 linux/amd64

$ go get -u -x github.com/fatih/gomodifytags
cd .
git clone https://github.com/fatih/gomodifytags /home/lukas/dev/go/src/github.com/fatih/gomodifytags
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git submodule update --init --recursive
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git show-ref
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git submodule update --init --recursive
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
git config remote.origin.url
WORK=/tmp/go-build286964385
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase
/usr/bin/gccgo -I $WORK -c -g -m64 -fgo-pkgpath=github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase -fgo-relative-import-path=_/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase -o $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase/_obj/_go_.o ./camelcase.go
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag/_obj/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag
/usr/bin/gccgo -I $WORK -c -g -m64 -fgo-pkgpath=github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag -fgo-relative-import-path=_/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag -o $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag/_obj/_go_.o ./tags.go
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil
/usr/bin/gccgo -I $WORK -c -g -m64 -fgo-pkgpath=github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil -fgo-relative-import-path=_/home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil -o $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil/_obj/_go_.o ./allpackages.go ./fakecontext.go ./overlay.go ./tags.go ./util.go
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase
ar rc $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/libcamelcase.a $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/camelcase/_obj/_go_.o
mkdir -p /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/
cp $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/libcamelcase.a /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/libcamelcase.a
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag
ar rc $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/libstructtag.a $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/structtag/_obj/_go_.o
cp $WORK/github.com/fatih/gomodifytags/vendor/github.com/fatih/libstructtag.a /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/libstructtag.a
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil
ar rc $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/libbuildutil.a $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/buildutil/_obj/_go_.o
mkdir -p /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/
cp $WORK/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/libbuildutil.a /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/libbuildutil.a
mkdir -p $WORK/github.com/fatih/gomodifytags/_obj/
mkdir -p $WORK/github.com/fatih/gomodifytags/_obj/exe/
cd /home/lukas/dev/go/src/github.com/fatih/gomodifytags
/usr/bin/gccgo -I $WORK -I /home/lukas/dev/go/pkg/gccgo_linux_amd64 -I $WORK/github.com/fatih/gomodifytags/vendor -I /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor -c -g -m64 -fgo-relative-import-path=_/home/lukas/dev/go/src/github.com/fatih/gomodifytags -o $WORK/github.com/fatih/gomodifytags/_obj/_go_.o ./main.go
ar rc $WORK/github.com/fatih/libgomodifytags.a $WORK/github.com/fatih/gomodifytags/_obj/_go_.o
cd .
/usr/bin/gccgo -o $WORK/github.com/fatih/gomodifytags/_obj/exe/a.out $WORK/github.com/fatih/gomodifytags/_obj/_go_.o -Wl,-( -m64 -Wl,--whole-archive /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/libcamelcase.a /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/github.com/fatih/libstructtag.a /home/lukas/dev/go/pkg/gccgo_linux_amd64/github.com/fatih/gomodifytags/vendor/golang.org/x/tools/go/libbuildutil.a -Wl,--no-whole-archive -Wl,-)
# github.com/fatih/gomodifytags
/tmp/go-build286964385/github.com/fatih/gomodifytags/_obj/_go_.o: In function `main.rewrite.pN11_main.config':
/home/lukas/dev/go/src/github.com/fatih/gomodifytags/main.go:184: undefined reference to `golang_org_x_tools_go_buildutil.ParseOverlayArchive'
/tmp/go-build286964385/github.com/fatih/gomodifytags/_obj/_go_.o: In function `__go_init_main':
/home/lukas/dev/go/src/github.com/fatih/gomodifytags/main.go:1: undefined reference to `golang_org_x_tools_go_buildutil..import'
collect2: error: ld returned 1 exit status

Embedded struct can not be used with -transform camelcase

type PDetail struct {
	PSummary //will cause problem
	Thumbnail             string `json:"thumbnail"`
}

 W
panic: runtime error: index out of range

goroutine 1 [running]:
main.(*config).addTags(0xc4200a4200, 0x0, 0x0, 0xc4200e74e0, 0x0, 0x100eda8, 0x20)
        /Users/ / /go/src/github.com/fatih/gomodifytags/main.go:351 +0x8a5

Cannot add more than one -add-options

tested both of this didn't work:

-add-options json=string,omitempty
-add-options json=string -add-options json=omitempty

but running the command twice works:

-add-options json=string 
-add-options json=omitempty

Document option to tag all structs

I had to search in the issues to see a way for all structs to be used in the file, almost not using this lib(which is great, by the way! only missing a few tiny things, that may hinder the usability). Which I've found the solution to be, to pass line 1,100000.

As for the behavior I expected when I used the gomodifytags command, it would be:

gomodifytags -file <file>.go: parses entire file, modify all structs, because no filter option passed
gomodifytags -file <file>.go -struct/-line/-offset: gets the entire file, apply the filter, only modify structs that were filtered

But, I don't know if that's everyone's expected behavior, so to at least cover this use case, we could at least document this hidden option, or implement it the proper way(without the line workaround, at least not to the end-user)

GoModifyTags doesn't work if a tag contains malformed tags

$ cat demo.go
package main

type Example struct {
	StatusID int64 `json:"status_id`
	Foo      string
	Bar      bool

	Server struct {
		Address string
		TLS     bool
	}

	DiskSize int64
	Volumes  []string
}
$ gomodifytags --file demo.go -struct Example -add-tags json
bad syntax for struct tag value

Here the struct tag is missing a quote. Two things we need to improve:

Error message should contain the struct name and the line position
We should modify other fields expect the malformed, instead of failing direclty

Specifying -lines and -format json can cause crash

If lines end is greater than the slice here:
https://github.com/fatih/gomodifytags/blob/master/main.go#L499

Different tags use different transforms

A tag on a struct uses the same transforms, and I want to use separate transforms for each tag.

AppDeploymentServerModuleConfig struct {
		ID                    int    `json:"id" gorm:"id"`
		AppDeploymentConfigID int    `json:"appDeploymentConfigID" gorm:"app_deployment_config_id"`

}

json use camelcase transforms, gorm use snakecase transforms

camelcase does'nt work

gomodifytags -file audiovo.go -struct AudioSimpleVo -add-tags json -transform camelcase

generated content is below:

type AudioSimpleVo struct {
        //音频ID
        ID string `json:"id,omitempty"`
        //父ID 课程ID或书的ID
        ParentID string `json:"parent_id,omitempty"`
        //标题
        Titile string `json:"titile,omitempty"`
        //音频时长
        Length int64 `json:"length,omitempty"`
        //是否免费  0：收费 1：免费
        Free int `json:"free,omitempty"`
        //标签类型  2：加餐
        TadType int `json:"tadType"`
        //分组ID
        SectionID string `json:"section_id,omitempty"`
        //分组标题
        // example: 开篇词
        SectionTitle string `json:"section_title,omitempty"`
        //学习状态: 0:未学习 1：已学习
        LearnStatus int `json:"learn_status,omitempty"`
        //学习人数
        LearnCount int64 `json:"learn_count,omitempty"`
        //学习人数（带文案）
        LearnCountText string `json:"learn_count_text,omitempty"`
        //答题标志
        TopicTag int `json:"topic_tag,omitempty"`
        //答对几题
        TopicScore int `json:"topicScore"`
}

why???

Add a mechanism to prefix tags

Some libraries like the gorm ORM or
the gaum SQL query builder
use a prefix in the tag name (ie gorm:"column:struct_field",
gaum:"field_name=struct_field") to help ther Scanner/Valuer interact
with the sql library in go.

I proposed a way to do this in this Pull Request

Incomplete detection for anonymous structs in function signature

We have a code base where the following code appears :

func SomeHandler(args *struct{
    Arg1 int    `json:"arg1,omitempty"`
    Arg2 string `json:"arg2,omitempty"`
}) error {
    ...

When running gomodifytags with an offset falling within the range of this struct declaration, it returns an error : offset is not inside a struct.

anonymous structs?

Is there support for anonymous structs? gomodifytags doesn't seem to work on anonymous structs.

Here's an example:

Running gomodifytags -file main.go -line 7,9 -add-tags json returns selection is not inside a struct

package main

import "fmt"

func main() {
	anon := []struct {
		ID int
		A  string
		B  string
	}{}

	fmt.Println(anon)
}

Add option to support custom formats

I would like to be able to customize the format of the outputted tag, like so:
Input:

type Foo struct {
  FooID int
}

What I want:

type Foo struct {
  FooID int `json:"fooId"`
}

If I use the camelcase option, the FooID, becomes, as expected, fooID, would there be any way to convert it to fooId?

MP3 is converted to mp_3

Hey,

I just ran this tool on a struct with field name MP3 and the added tag was json:"xmp_3,omitempty".

This is wrong, but I wonder if it's worth fixing at all.

Unable to add static tag value with comma.

Is it somehow possible to add tags with comma eg. with mapstructure:

type Friend struct {
    Person `mapstructure:",squash"`
}

I tried this but then squash is treated as the next tag token, maybe I'm missing something? :)

Feature Request: regex based modification

for example:

gomodifytags bla.go -w -field-regex '.*Id' -add-options json=string
gomodifytags bla.go -w -field-regex '.*At' -add-options json=string

those will modify only fields that ends with Id or At

support anonymous structs

Behavior

package main

func main() {
    // I believe running :GoAddTags inside this anonymous struct should add its tags accordingly
	&struct {
		Hello string
	}{}
}

Steps to reproduce:

Open file .go file
Create anonymous struct
Run :GoAddTags in it
Message "offset is not inside a struct" will show up

Will gladly work on this one if you have no problems with it.

Override flag defaults with a config file

I'd like to have the ability to change the defaults of the executable, e.g. to make the default transformation be camelCase instead of snake_case.

My proposal would be to introduce a config file (e.g. ~/.config/gomodifytags/config) where you could override default flag values.

Case cannot be changed without removing tags first

For the input file main.go:

package main

type Foo struct {
	BarBash  string `json:"bar_bash"`
	BazBob   string `json:"baz_bob"`
	QuuxKing int    `json:"quux_king"`
}

The command gomodifytags -file main.go -struct Foo -add-tags json -transform camelcase returns the input unmodified, instead of changing the tags from snake_case to camelCase.

For reference, the same behavior does not occur with the -sort option. I can have an input file with xml and json tags (in that order), and invoke gomodifytags with -add-tags xml,json -sort and the order of the tags is updated as expected.

Support custom tag for selected field in struct

Hi, first thank you for this great library. So i have special case like this, i want to generate custom tag in my Struct, but not all the field will have it. Example

type Pokemon struct {
	Name     string
	Age        int    `validate:min=5,max=10`
}

so on the example above, i only want field Age have the custom tag with value validate:min=5,max=10

Can we have this feature? Thank you for your attention

Add new transformation where acronyms are in capital case

I use the camelcase transformation, but I have one issue with it.
In my API, we use the go linter conventions regarding acronyms in our JSONs:
we use keys like userID instead of userId.

I did not find a way to preserve this behavior.

I don't even mind writing the PR if that's OK with you

:GoAddTags cannot add tags to variable defined with struct literal

(originally opened in vim-go)

What did you do?

I tried to run :GoAddTags inside a variable defined with a struct literal:

var thing struct{
  id int
  value string
}

What did you expect to happen?

I expected struct tags to be added per usual.

What happened instead?

I got the error message:

vim-go: offset is not inside a struct

Configuration:

vim-go version: v1.17
vimrc you used to reproduce (use a minimal vimrc with other plugins disabled; do not link to a 2,000 line vimrc):
My vimrc
Vim version (first three lines from :version):
VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Nov 29 2017 18:37:46)
Included patches: 1-503, 505-608, 682-1283
Compiled by [email protected]
Go version (go version): go1.10.1
Go environment (go env): darwin/amd64

Formatting tag values $field not generated

I'm trying to generate with formatting tag values with -template. And I got null $field.

script executed:

gomodifytags -file purchase.go -all -add-tags gorm --template "column:$field" -w

result:

type PurchaseModel struct {
        BaseField         `json:",inline" gorm:"column:"`
        Code              string `json:"code,omitempty" gorm:"column:"`
        RefOrderId        string `json:"ref_order_id,omitempty" gorm:"column:"`
        Date              string `json:"date,omitempty" gorm:"column:"`
        Status            string `json:"status,omitempty" gorm:"column:"`
        PaymentStatus     string `json:"payment_status,omitempty" gorm:"column:"`
        InvoiceNumber     string `json:"invoice_number,omitempty" gorm:"column:"`
        InvoiceDate       string `json:"invoice_date,omitempty" gorm:"column:"`
        InvoiceDueDate    string `json:"invoice_due_date,omitempty" gorm:"column:"`
        InvoiceTotalPrice string `json:"invoice_total_price,omitempty" gorm:"column:"`
}

result gorm:"column:"
should be gorm:"column:code"

please help,
Thanks

Feature Reqest: silent output

Currently even with -w flag the output still printed in stdout
it would be nice if there's a flag that print only when there's error

Add -transform lowercase

background: I got some error while doing scanny.pgxscan.Select because the column is not there

without the struct tag db:"createdat" (actually it was CreatedAt on the struct) it shows error scanning all: scanning: scanning: doing scan: scanFn: scany: column: createdat

and gomodifytags only allow PascalCase or snake_case (only these two that most similar), where what i need is lowercase.

add option to add tags to all structs in file

as of now you have to specify the name of each struct or know the position of each struct individually.

would be great to be able to bulk process a large file with multiple structs.

How 2 add tag name before element name?

I've struct name as below

type Server struct {
Name string json:"name"
Port int json:"port"
}

I want to add the element before name (Person:name) as like below

type Server struct {
Name string json:"Person:name"
Port int json:"port"
}

Is it possible to add this option in this lib?

Feature Request: skip already ignored fields

When using structs in combination with various ORM's like GORM you'll end up having fields like: Customer and CustomerID. We ignore the Customer or the CustomerID based on what we would like to output. It would be nice to skip the fields that are explicitly set to be ignored like json:"-".

Implementing a regex would also be a fine solution: #83

Is it possible to declare prefix for every tag?

Hi.
For example, i want to have tags with prefix ex_, so it would look like json:"ex_mytag".
Is it possible? I can't find it in description.