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e3eae3f7c7
On Windows, a successful call will have a trailing newline appended, so strip that away before doing any checks.
44 lines
1.8 KiB
Nim
44 lines
1.8 KiB
Nim
import os, uri, strformat, osproc, strutils
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proc exec(cmd: string) =
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echo "deps.cmd: " & cmd
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let status = execShellCmd(cmd)
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doAssert status == 0, cmd
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proc execEx(cmd: string): tuple[output: TaintedString, exitCode: int] =
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echo "deps.cmd: " & cmd
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execCmdEx(cmd, {poStdErrToStdOut, poUsePath, poEvalCommand})
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proc isGitRepo(dir: string): bool =
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# This command is used to get the relative path to the root of the repository.
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# Using this, we can verify whether a folder is a git repository by checking
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# whether the command success and if the output is empty.
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let (output, status) = execEx fmt"git -C {quoteShell(dir)} rev-parse --show-cdup"
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# On Windows there will be a trailing newline on success, remove it.
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# The value of a successful call typically won't have a whitespace (it's
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# usually a series of ../), so we know that it's safe to unconditionally
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# remove trailing whitespaces from the result.
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result = status == 0 and output.strip() == ""
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const commitHead* = "HEAD"
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proc cloneDependency*(destDirBase: string, url: string, commit = commitHead,
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appendRepoName = true, allowBundled = false) =
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let destDirBase = destDirBase.absolutePath
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let p = url.parseUri.path
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let name = p.splitFile.name
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var destDir = destDirBase
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if appendRepoName: destDir = destDir / name
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let destDir2 = destDir.quoteShell
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if not dirExists(destDir):
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# note: old code used `destDir / .git` but that wouldn't prevent git clone
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# from failing
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exec fmt"git clone -q {url} {destDir2}"
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if isGitRepo(destDir):
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exec fmt"git -C {destDir2} fetch -q"
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exec fmt"git -C {destDir2} checkout -q {commit}"
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elif allowBundled:
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discard "this dependency was bundled with Nim, don't do anything"
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else:
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quit "FAILURE: " & destdir & " already exists but is not a git repo"
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