Do not use vendoring

Dependencies update

Makefile

@@ -16,10 +16,7 @@ deps:
 lint:
 	golangci-lint run --tests=false --enable-all
 
-vendor:
+release: clean
-	go mod vendor
-
-release: clean vendor
 	./misc/script/release
 
 gitea-release:
@@ -28,4 +25,4 @@ gitea-release:
 clean:
 	rm -rf ./bin ./release ./coverage
 
-.PHONY: test clean lint coverage doc release vendor
+.PHONY: test clean lint coverage doc release

README.md

@@ -1,6 +1,14 @@
 # Scaffold
 
-Utilitaire de génération d'arborescence de fichiers à partir de projets "modèles" distants/locaux.
+## Description
+
+`scaffold` est un outil permettant de générer une arborescence de fichiers à partir d'un modèle pré-existant.
+
+Ce modèle peut être soit un répertoire local soit un dépôt Git distant.
+
+De plus, `scaffold` intègre un mécanisme de templating permettant d'injecter des données dynamiques dans les fichiers à copier. Par défaut, tout fichier dont l'extension est `.gotpl` sera soumis à ce templating.
+
+Un fichier "manifeste" (par défaut `scaffold.yml`) peut être créé afin de déclarer les variables à injecter. Ces variables seront demandées à l'utilisateur lors du lancement de la commande `scaffold from`.
 
 ## Installation
 
@@ -9,12 +17,19 @@ Utilitaire de génération d'arborescence de fichiers à partir de projets "mod
 ```
 go install forge.cadoles.com/wpetit/scaffold/cmd/scaffold
 ```
+### Manuellement, à partir des binaires
 
-### À partir des binaires
+1. [Télécharger la dernière version du binaire correspondant à votre plateforme](https://forge.cadoles.com/wpetit/scaffold/releases) (dernière version stable: 0.0.2)
-
-1. [Télécharger la dernière version du binaire correspondant à votre plateforme](https://forge.cadoles.com/wpetit/scaffold/releases)
 2. Extraire l'archive et place le binaire `bin/scaffold` dans votre `$PATH` (par exemple dans le répertoire `/usr/local/bin`)
 
+### Automatiquement, via le script d'installation
+
+```shell
+curl -s https://forge.cadoles.com/wpetit/scaffold/raw/branch/master/misc/script/install | bash
+```
+
+L'utilitaire [`jq`](https://stedolan.github.io/jq/) doit être installé sur votre système.
+
 ## Usage
 
 ```
@@ -32,15 +47,29 @@ GLOBAL OPTIONS:
    --help, -h  show help (default: false)
 ```
 
-### `scaffold from [command options] <URL>`
+### Commandes
+
+#### `from`
 
 ```
+NAME:
+   scaffold from - generate a new project from a given template url
+
+USAGE:
+   scaffold from [command options] <URL>
+
 OPTIONS:
    --directory DIR, -d DIR   Set destination to DIR (default: "./")
    --manifest FILE, -m FILE  The scaffold manifest FILE (default: "scaffold.yml")
+   --ignore value, -i value  Ignore files matching pattern (default: ".git", ".git/**", "./.git/**/*")
    --help, -h                show help (default: false)
 ```
 
+## Documentation
+
+- [Créer un modèle de projet](./doc/create_project_template.md)
+- [Format du fichier `scaffold.yml`](./doc/scaffold_file_format.md)
+
 ## Licence
 
 [GPL-3.0](./LICENSE)

cmd/scaffold/main.go

@@ -16,7 +16,7 @@ func main() {
 	}
 
 	if err := app.Run(os.Args); err != nil {
-		fmt.Printf("%+v", err)
+		fmt.Printf("%+v\n", err)
 		os.Exit(1)
 	}
 }

doc/create_project_template.md

@@ -0,0 +1,19 @@
+# Créer un nouveau modèle de projet
+
+Un modèle de projet `scaffold` est un simple répertoire. Celui ci peut être versionné avec Git et utilisé de manière distante par la commande `scaffold from`.
+
+## Fichiers gabarits ("templates")
+
+Tout fichier dont l'extension est `.gotpl` se verra transformé avec la librairie [`text/template`](https://golang.org/pkg/text/template/) avant d'être copié.
+
+L'extension `.gotpl` sera supprimée avant la copie (_par exemple, un fichier `index.html.gotpl` sera transformé puis copié en `index.html`_).
+
+Les variables déclarées dans le fichier [`scaffold.yml`](./scaffold_file_format.md) seront accessibles à tous les fichiers gabarits.
+
+Afin de faciliter l'écriture des gabarits, `scaffold` intègre la librairie d'extension [`github.com/Masterminds/sprig`](http://masterminds.github.io/sprig/).
+
+## Déclaration de variables et contraintes de validation
+
+Voir le format du fichier [`scaffold.yml`](./scaffold_file_format.md).
+
+> TODO

doc/scaffold_file_format.md

@@ -0,0 +1,71 @@
+## Format du fichier `scaffold.yml`
+
+Le fichier `scaffold.yml` est au format [YAML](https://yaml.org/). C'est ce fichier qui permet de définir les données à injecter dans les modèles lors de la génération d'un nouveau projet avec la commande `scaffold from ...`.
+
+**Schéma**
+
+``` yaml
+# Version du format de fichier. Actuellement, la seule valeur possible est 1.
+version: 1
+
+# Liste des variables à injecter dans les modèles de fichier
+vars:
+    - <Var> 
+#   - <Var>...
+```
+
+## Types
+
+### `<Var>`
+
+Définition d'une variable injectable dans les modèles de fichier.
+
+**Schéma**
+
+```yaml
+# Type de la variable. Actuellement, la seul valeur possible est "string"
+type: "string"
+
+# Nom de la variable. C'est le nom qui permettra d'accéder à la valeur de la variable dans les modèles de fichiers.
+name: <string>
+
+# Description de la variable. C'est le texte qui sera affiché dans l'invite de commande au moment de la génération de l'arborescence de fichiers.
+description: <string>
+
+# Liste des contraintes appliquées à la valeur de la variable. La valeur est considérée comme invalide tant que l'ensemble des contraintes ne sont pas remplies.
+constraints: 
+    - <Constraint>
+#   - <Constraint>...
+```
+
+### `<Constraint>`
+
+Définition d'une contrainte appliquée à la valeur d'une variable.
+
+```yaml
+# Règle de validation à appliquer à la valeur entrée par l'utilisateur.
+rule: <Rule>
+
+# Message à afficher à l'utilisateur si la règle de validation concorde avec la valeur entrée par celui ci.
+message: <string>
+```
+
+**Exemple**
+
+```yaml
+# Règle validant que la valeur ne doit pas être vide.
+rule: Input == ""
+message: Cette valeur ne peut être vide.
+```
+
+### `<Rule>`
+
+Règle de validation d'une contrainte appliquée à une variable. 
+
+Ce n'est ni plus ni moins qu'une condition booléenne écrite avec la syntaxe proposée par la librairie [github.com/antonmedv/expr](https://github.com/antonmedv/expr/blob/master/docs/Language-Definition.md).
+
+Voici les variables globales disponibles aux règles:
+
+|Variable|Description|
+|--------|-----------|
+|`Input` |Valeur entrée par l'utilisateur|

go.mod

@@ -3,19 +3,34 @@ module forge.cadoles.com/wpetit/scaffold
 go 1.13
 
 require (
-	github.com/Masterminds/goutils v1.1.0 // indirect
+	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
 	github.com/Masterminds/sprig v2.22.0+incompatible
-	github.com/antonmedv/expr v1.4.5
+	github.com/Microsoft/go-winio v0.5.0 // indirect
-	github.com/google/uuid v1.1.1 // indirect
+	github.com/antlr/antlr4 v0.0.0-20191011202612-ad2bd05285ca // indirect
-	github.com/huandu/xstrings v1.3.0 // indirect
+	github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210707120613-a80295a60b3e // indirect
-	github.com/imdario/mergo v0.3.8 // indirect
+	github.com/antonmedv/expr v1.8.9
-	github.com/manifoldco/promptui v0.7.0
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
-	github.com/mitchellh/copystructure v1.0.0 // indirect
+	github.com/google/uuid v1.2.0 // indirect
+	github.com/huandu/xstrings v1.3.2 // indirect
+	github.com/imdario/mergo v0.3.12 // indirect
+	github.com/juju/ansiterm v0.0.0-20210706145210-9283cdf370b5 // indirect
+	github.com/kevinburke/ssh_config v1.1.0 // indirect
+	github.com/lunixbochs/vtclean v1.0.0 // indirect
+	github.com/manifoldco/promptui v0.8.0
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mattn/go-isatty v0.0.13 // indirect
+	github.com/mattn/go-zglob v0.0.3
+	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/pkg/errors v0.9.1
-	github.com/urfave/cli/v2 v2.1.1
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	golang.org/x/crypto v0.0.0-20200214034016-1d94cc7ab1c6 // indirect
+	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/urfave/cli/v2 v2.3.0
+	github.com/xanzy/ssh-agent v0.3.0 // indirect
+	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e // indirect
+	golang.org/x/net v0.0.0-20210614182718-04defd469f4e // indirect
+	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
 	gopkg.in/src-d/go-billy.v4 v4.3.2
 	gopkg.in/src-d/go-git.v4 v4.13.1
-	gopkg.in/yaml.v2 v2.2.2
+	gopkg.in/yaml.v2 v2.4.0
 )

go.sum

@@ -2,18 +2,27 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/Masterminds/goutils v1.1.0 h1:zukEsf/1JZwCMgHiK3GZftabmxiCw4apj3a28RPBiVg=
 github.com/Masterminds/goutils v1.1.0/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
+github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
+github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3QEww=
 github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/Masterminds/sprig v2.22.0+incompatible h1:z4yfnGrZ7netVz+0EDJ0Wi+5VZCSYp4Z0m2dk6cEM60=
 github.com/Masterminds/sprig v2.22.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
+github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
+github.com/Microsoft/go-winio v0.5.0 h1:Elr9Wn+sGKPlkaBvwu4mTrxtmOp3F3yV9qhaHbXGjwU=
+github.com/Microsoft/go-winio v0.5.0/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84=
 github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 h1:uSoVVbwJiQipAclBbw+8quDsfcvFjOpI5iCf4p/cqCs=
 github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/antlr/antlr4 v0.0.0-20191011202612-ad2bd05285ca h1:QHbltbNkVcw97h4zA/L8gA4o3dJiFvBZ0gyZHrYXHbs=
 github.com/antlr/antlr4 v0.0.0-20191011202612-ad2bd05285ca/go.mod h1:T7PbCXFs94rrTttyxjbyT5+/1V8T2TYDejxUfHJjw1Y=
+github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210707120613-a80295a60b3e h1:uBd2310XecYTPyaGpDpmqtPbH0T8ND5FY76aRZ3B/Tk=
+github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210707120613-a80295a60b3e/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY=
 github.com/antonmedv/expr v1.4.5 h1:yYjQAps1CZTBJBKntVnSEWYp15ML9IWnlrKuFHQ6/HY=
 github.com/antonmedv/expr v1.4.5/go.mod h1:xesgliOuukGf21740qhh8PvFdN66yZ9lJJ/PzSFAmzI=
+github.com/antonmedv/expr v1.8.9 h1:O9stiHmHHww9b4ozhPx7T6BK7fXfOCHJ8ybxf0833zw=
+github.com/antonmedv/expr v1.8.9/go.mod h1:5qsM3oLGDND7sDmQGDXHkYfkjYMUX14qsgqmHhwGEk8=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
@@ -24,7 +33,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWs
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
+github.com/davecgh/go-spew v0.0.0-20161028175848-04cdfd42973b/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -34,23 +46,35 @@ github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568 h1:BHsljHzVlRcyQhjr
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
 github.com/gdamore/tcell v1.1.2/go.mod h1:h3kq4HO9l2On+V9ed8w8ewqQEmGCSSHOgQ+2h8uzurE=
+github.com/gdamore/tcell v1.3.0/go.mod h1:Hjvr+Ofd+gLglo7RYKxxnzCBmev3BzsS67MebKS4zMM=
 github.com/gliderlabs/ssh v0.2.2 h1:6zsha5zo/TWhRhwqCD3+EarCAgZ2yN28ipRnGPnwkI0=
 github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
 github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
+github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/src-d/go-billy.v4 v4.3.2 h1:0SQA1pRztfTFx2miS8sA97XvooFeNOmvUenF4o0EcVg=
 gopkg.in/src-d/go-billy.v4 v4.3.2/go.mod h1:nDjArDMp+XMs1aFAESLRjfGSgfvoYN0hDfzEk0GjC98=
 gopkg.in/src-d/go-git-fixtures.v3 v3.5.0 h1:ivZFOIltbce2Mo8IjzUHAFoq/IylO9WHhNOAJK+LsJg=
@@ -133,3 +218,8 @@ gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

internal/command/from_project.go

@@ -1,7 +1,7 @@
 package command
 
 import (
-	"log"
+	"fmt"
 	"net/url"
 	"os"
 
@@ -32,6 +32,12 @@ func fromCommand() *cli.Command {
 				Usage:   "The scaffold manifest `FILE`",
 				Value:   "scaffold.yml",
 			},
+			&cli.StringSliceFlag{
+				Name:    "ignore",
+				Aliases: []string{"i"},
+				Usage:   "Ignore files matching pattern",
+				Value:   cli.NewStringSlice(".git", ".git/**", "./.git/**/*"),
+			},
 		},
 		Action: fromAction,
 	}
@@ -78,13 +84,13 @@ func fromAction(c *cli.Context) error {
 			return errors.Wrapf(err, "could not read manifest '%s'", manifestPath)
 		}
 
-		log.Println("Could not find scaffold manifest.")
+		fmt.Println("Could not find scaffold manifest.")
 	}
 
 	if manifestFile != nil {
 		defer manifestFile.Close()
 
-		log.Println("Loading template scaffold manifest...")
+		fmt.Println("Loading scaffold manifest.")
 
 		manifest, err := template.Load(manifestFile)
 		if err != nil {
@@ -95,6 +101,7 @@ func fromAction(c *cli.Context) error {
 			return errors.Wrapf(err, "could not validate manifest '%s'", manifestPath)
 		}
 
+		fmt.Println("Prompting for templates variables.")
 		if err := template.Prompt(manifest, templateData); err != nil {
 			return errors.Wrap(err, "could not prompt for template data")
 		}
@@ -102,9 +109,22 @@ func fromAction(c *cli.Context) error {
 
 	directory := c.String("directory")
 
-	return template.CopyDir(vfs, ".", directory, &template.Option{
+	ignore := c.StringSlice("ignore")
-		TemplateData:   templateData,
+	ignore = append(ignore, manifestPath)
-		TemplateExt:    ".gotpl",
+
-		IgnorePatterns: []string{manifestPath},
+	fmt.Println("Generating project tree.")
+
+	err = template.CopyDir(vfs, ".", directory, &template.Option{
+		TemplateData:      templateData,
+		TemplateExt:       ".gotpl",
+		IgnorePatterns:    ignore,
+		PreferredStrategy: template.Undefined,
 	})
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Done.")
+
+	return nil
 }

internal/project/git.go

@@ -1,7 +1,7 @@
 package project
 
 import (
-	"log"
+	"fmt"
 	"net/url"
 	"os"
 	"strings"
@@ -51,7 +51,7 @@ func (f *GitFetcher) Fetch(url *url.URL) (billy.Filesystem, error) {
 		url.Fragment = ""
 	}
 
-	log.Printf("Cloning repository '%s'...", url.String())
+	fmt.Printf("Cloning repository '%s'.\n", url.String())
 
 	repo, err := git.Clone(memory.NewStorage(), fs, &git.CloneOptions{
 		URL:           url.String(),
@@ -72,7 +72,7 @@ func (f *GitFetcher) Fetch(url *url.URL) (billy.Filesystem, error) {
 		return nil, errors.Wrap(err, "could not retrieve worktree")
 	}
 
-	log.Printf("Checking out branch '%s'...", branchName)
+	fmt.Printf("Checking out branch '%s'.\n", branchName)
 
 	err = worktree.Checkout(&git.CheckoutOptions{
 		Force:  true,

internal/template/copy.go

@@ -1,9 +1,9 @@
 package template
 
 import (
+	"fmt"
 	"io"
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 	"strings"
@@ -13,6 +13,7 @@ import (
 	"gopkg.in/src-d/go-billy.v4"
 
 	"github.com/Masterminds/sprig"
+	"github.com/mattn/go-zglob"
 	"github.com/pkg/errors"
 )
 
@@ -43,12 +44,12 @@ func CopyDir(vfs billy.Filesystem, baseDir string, dst string, opts *Option) err
 		}
 
 		for _, p := range opts.IgnorePatterns {
-			match, err := filepath.Match(p, srcPath)
+			match, err := zglob.Match(p, strings.TrimPrefix(srcPath, "./"))
 			if err != nil {
 				return errors.Wrap(err, "could not match ignored file")
 			}
 			if match {
-				log.Printf("Ignoring %s.", srcPath)
+				fmt.Printf("Ignoring %s.\n", srcPath)
 				return nil
 			}
 		}
@@ -61,7 +62,7 @@ func CopyDir(vfs billy.Filesystem, baseDir string, dst string, opts *Option) err
 		dstPath := filepath.Join(dst, relSrcPath)
 
 		if info.IsDir() {
-			log.Printf("creating dir '%s'", dstPath)
+			fmt.Printf("Creating dir '%s'.\n", dstPath)
 			if err := os.MkdirAll(dstPath, 0755); err != nil {
 				return errors.Wrapf(err, "could not create directory '%s'", dstPath)
 			}
@@ -89,6 +90,44 @@ func CopyFile(vfs billy.Filesystem, src, dst string, opts *Option) (err error) {
 		opts = &Option{}
 	}
 
+	stat, err := os.Stat(dst)
+	if err != nil && !os.IsNotExist(err) {
+		return err
+	}
+
+	// If dst exists
+	if stat != nil {
+		strategy := opts.PreferredStrategy
+
+		if opts.Unnattended && opts.PreferredStrategy == -1 {
+			strategy = defaultStrategy
+		}
+
+		if opts.PreferredStrategy == -1 {
+			var useAsPreferredStrategy bool
+
+			strategy, useAsPreferredStrategy, err = askOverwriteStrategy(dst)
+			if err != nil {
+				return errors.Wrap(err, "could not ask for overwrite strategy")
+			}
+
+			if useAsPreferredStrategy {
+				opts.PreferredStrategy = strategy
+			}
+		}
+
+		switch strategy {
+		case CopyAsDist:
+			fmt.Printf("Using '%s.dist' as destination file.\n", dst)
+			dst += ".dist"
+		case DoNotCopy:
+			fmt.Printf("Skipping existing file '%s'.\n", dst)
+			return nil
+		default:
+			return nil
+		}
+	}
+
 	if !strings.HasSuffix(src, opts.TemplateExt) {
 		return copyFile(vfs, src, dst)
 	}
@@ -111,7 +150,7 @@ func CopyFile(vfs billy.Filesystem, src, dst string, opts *Option) (err error) {
 
 	dst = strings.TrimSuffix(dst, opts.TemplateExt)
 
-	log.Printf("templating file from '%s' to '%s'", src, dst)
+	fmt.Printf("Templating file from '%s' to '%s'.\n", src, dst)
 
 	out, err := os.Create(dst)
 	if err != nil {
@@ -135,7 +174,7 @@ func CopyFile(vfs billy.Filesystem, src, dst string, opts *Option) (err error) {
 }
 
 func copyFile(vfs billy.Filesystem, src, dst string) (err error) {
-	log.Printf("copying file '%s' to '%s'", src, dst)
+	fmt.Printf("Copying file '%s' to '%s'.\n", src, dst)
 
 	in, err := vfs.Open(src)
 	if err != nil {

internal/template/error.go

@@ -0,0 +1,7 @@
+package template
+
+import "github.com/pkg/errors"
+
+var (
+	ErrUnexpectedOverwriteStrategy = errors.New("unexpected overwrite strategy")
+)

internal/template/option.go

@@ -1,7 +1,9 @@
 package template
 
 type Option struct {
-	IgnorePatterns []string
+	IgnorePatterns    []string
-	TemplateData   Data
+	TemplateData      Data
-	TemplateExt    string
+	TemplateExt       string
+	Unnattended       bool
+	PreferredStrategy Strategy
 }

internal/template/strategy.go

@@ -0,0 +1,62 @@
+package template
+
+import (
+	"fmt"
+
+	"github.com/manifoldco/promptui"
+	"github.com/pkg/errors"
+)
+
+type Strategy int
+
+const (
+	Undefined Strategy = -1
+	Overwrite Strategy = iota
+	CopyAsDist
+	DoNotCopy
+)
+
+// nolint: gochecknoglobals
+var defaultStrategy = CopyAsDist
+
+func askOverwriteStrategy(dst string) (Strategy, bool, error) {
+	strategyPrompt := promptui.Select{
+		Label: fmt.Sprintf("The file '%s' already exists. What do you want to do ?", dst),
+		Items: []string{
+			"Leave <dest> file as is",
+			"Copy source file as '<dest>.dist'",
+			"Overwrite '<dest>' with source file",
+		},
+	}
+
+	strategySelectedIndex, _, err := strategyPrompt.Run()
+	if err != nil {
+		return -1, false, errors.Wrap(err, "could not prompt for overwrite strategy")
+	}
+
+	asPreferredStrategyPrompt := promptui.Select{
+		Label: "Do you want to apply this strategy to all files ?",
+		Items: []string{
+			"Yes",
+			"No",
+		},
+	}
+
+	preferredSelectedIndex, _, err := asPreferredStrategyPrompt.Run()
+	if err != nil {
+		return -1, false, errors.Wrap(err, "could not prompt for preferred strategy")
+	}
+
+	useAsPreferredStrategy := preferredSelectedIndex == 0
+
+	switch strategySelectedIndex {
+	case 0:
+		return DoNotCopy, useAsPreferredStrategy, nil
+	case 1:
+		return CopyAsDist, useAsPreferredStrategy, nil
+	case 2:
+		return Overwrite, useAsPreferredStrategy, nil
+	default:
+		return -1, false, ErrUnexpectedOverwriteStrategy
+	}
+}

misc/script/install

@@ -0,0 +1,98 @@
+#!/bin/bash
+
+set -eo pipefail
+
+SCAFFOLD_VERSION="${SCAFFOLD_VERSION:-0.0.3}"
+RELEASE_INFO_URL="https://forge.cadoles.com/api/v1/repos/wpetit/scaffold/releases/tags/${SCAFFOLD_VERSION}"
+
+function assert_command_available {
+    local command=$1
+    local command_path=$(which $command)
+
+    if [ -z "$command_path" ]; then
+        echo "The '$command' command could not be found. Please install it before using this script." 1>&2
+        exit 1
+    fi
+}
+
+function fetch_release_info {
+    curl -s -H "accept: application/json" -XGET "${RELEASE_INFO_URL}"
+}
+
+function get_archive_name {
+    local os="$(get_normalized_os)"
+    local arch="$(get_normalized_arch)"
+    echo "scaffold-${os}-${arch}.tar.gz"
+}
+
+function get_normalized_os {
+    echo "$(uname -s | tr '[:upper:]' '[:lower:]')"
+}
+
+function get_normalized_arch {
+    local arch=$(uname -m)
+    case $(uname -m) in
+        i?86)   arch="386" ;;
+        x86_64) arch="amd64" ;;
+        arm[4567]*) arch="arm" ;;
+        arm[8]*) arch="arm64" ;;
+        *) echo 1>&2 "Unsupported architecture '${arch}' !"; exit 1 ;;
+    esac
+    echo "$arch"
+}
+
+function find_attachment_url {
+    local release_info=$1
+    local expected_attachment_name=$2
+
+    echo "${release_info}" | jq -r ".assets[] | select(.name == \"${expected_attachment_name}\") | .browser_download_url"
+}
+
+function download_attachment {
+    local attachment_url=$1
+    local attachment_name=$2
+
+    curl -o "${attachment_name}" "$attachment_url"
+}
+
+function main {
+    assert_command_available 'curl'
+    assert_command_available 'jq'
+    assert_command_available 'tar'
+    assert_command_available 'tr'
+
+    local archive_name="$(get_archive_name)"
+
+    echo "Fetching scaffold release '${SCAFFOLD_VERSION}' informations..."
+    local release_info="$(fetch_release_info)"
+
+    local archive_url=$(find_attachment_url "$release_info" "$archive_name")
+
+    if [ -z "$archive_url" ]; then
+        echo 1>&2 "Could not find archive url !"
+        exit 1
+    fi
+
+    local tmpdir=$(mktemp -d)
+
+    ( 
+        cd "${tmpdir}";
+        
+        echo "Downloading release file '${archive_name}' to '${tmpdir}'..."
+        download_attachment "${archive_url}" "${archive_name}"
+        
+        echo "Extracting archive..."
+        tar -xzf "${archive_name}"
+        
+        local dirname="$(echo "${archive_name}" | cut -f 1 -d '.')"
+
+        echo "Copying scaffold binary to /usr/local/bin..."
+        sudo cp -i "${dirname}/bin/scaffold" /usr/local/bin/
+    )
+
+    rm -rf "${tmpdir}"
+
+    echo "Done."
+}
+
+main

misc/script/release

@@ -24,7 +24,6 @@ function build {
   echo "building $dirname..."
 
   CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" go build \
-    -mod=vendor \
     -ldflags="-s -w -X 'main.GitRef=$(current_commit_ref)' -X 'main.ProjectVersion=$(current_version)' -X 'main.BuildDate=$(current_date)'" \
     -gcflags=-trimpath="${PWD}" \
     -asmflags=-trimpath="${PWD}" \